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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
commitf721e3ac031f892af46f255a47d7f54a91317b30 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /target-arm/translate.c
parentbae1bc39312d5019bd9a5b8d840a529213a69a17 (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'target-arm/translate.c')
-rw-r--r--target-arm/translate.c8963
1 files changed, 0 insertions, 8963 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c
deleted file mode 100644
index ff27d28..0000000
--- a/target-arm/translate.c
+++ /dev/null
@@ -1,8963 +0,0 @@
-/*
- * ARM translation
- *
- * Copyright (c) 2003 Fabrice Bellard
- * Copyright (c) 2005-2007 CodeSourcery
- * Copyright (c) 2007 OpenedHand, Ltd.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-
-#include "cpu.h"
-#include "exec-all.h"
-#include "disas.h"
-#include "tcg-op.h"
-#include "qemu-log.h"
-
-#ifdef CONFIG_TRACE
-#include "trace.h"
-#endif
-
-#define GEN_HELPER 1
-#include "helpers.h"
-
-#define ENABLE_ARCH_5J 0
-#define ENABLE_ARCH_6 arm_feature(env, ARM_FEATURE_V6)
-#define ENABLE_ARCH_6K arm_feature(env, ARM_FEATURE_V6K)
-#define ENABLE_ARCH_6T2 arm_feature(env, ARM_FEATURE_THUMB2)
-#define ENABLE_ARCH_7 arm_feature(env, ARM_FEATURE_V7)
-
-#define ARCH(x) if (!ENABLE_ARCH_##x) goto illegal_op;
-
-/* internal defines */
-typedef struct DisasContext {
- target_ulong pc;
- int is_jmp;
- /* Nonzero if this instruction has been conditionally skipped. */
- int condjmp;
- /* The label that will be jumped to when the instruction is skipped. */
- int condlabel;
- /* Thumb-2 condtional execution bits. */
- int condexec_mask;
- int condexec_cond;
- struct TranslationBlock *tb;
- int singlestep_enabled;
- int thumb;
- int is_mem;
-#if !defined(CONFIG_USER_ONLY)
- int user;
-#endif
-} DisasContext;
-
-#if defined(CONFIG_USER_ONLY)
-#define IS_USER(s) 1
-#else
-#define IS_USER(s) (s->user)
-#endif
-
-#ifdef CONFIG_TRACE
-#include "helpers.h"
-#endif
-
-/* These instructions trap after executing, so defer them until after the
- conditional executions state has been updated. */
-#define DISAS_WFI 4
-#define DISAS_SWI 5
-
-static TCGv cpu_env;
-/* We reuse the same 64-bit temporaries for efficiency. */
-static TCGv cpu_V0, cpu_V1, cpu_M0;
-
-/* FIXME: These should be removed. */
-static TCGv cpu_T[2];
-static TCGv cpu_F0s, cpu_F1s, cpu_F0d, cpu_F1d;
-
-#define ICOUNT_TEMP cpu_T[0]
-#include "gen-icount.h"
-
-/* initialize TCG globals. */
-void arm_translate_init(void)
-{
- cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env");
-
- cpu_T[0] = tcg_global_reg_new(TCG_TYPE_I32, TCG_AREG1, "T0");
- cpu_T[1] = tcg_global_reg_new(TCG_TYPE_I32, TCG_AREG2, "T1");
-}
-
-/* The code generator doesn't like lots of temporaries, so maintain our own
- cache for reuse within a function. */
-#define MAX_TEMPS 8
-static int num_temps;
-static TCGv temps[MAX_TEMPS];
-
-/* Allocate a temporary variable. */
-static TCGv new_tmp(void)
-{
- TCGv tmp;
- if (num_temps == MAX_TEMPS)
- abort();
-
- if (GET_TCGV(temps[num_temps]))
- return temps[num_temps++];
-
- tmp = tcg_temp_new(TCG_TYPE_I32);
- temps[num_temps++] = tmp;
- return tmp;
-}
-
-/* Release a temporary variable. */
-static void dead_tmp(TCGv tmp)
-{
- int i;
- num_temps--;
- i = num_temps;
- if (GET_TCGV(temps[i]) == GET_TCGV(tmp))
- return;
-
- /* Shuffle this temp to the last slot. */
- while (GET_TCGV(temps[i]) != GET_TCGV(tmp))
- i--;
- while (i < num_temps) {
- temps[i] = temps[i + 1];
- i++;
- }
- temps[i] = tmp;
-}
-
-static inline TCGv load_cpu_offset(int offset)
-{
- TCGv tmp = new_tmp();
- tcg_gen_ld_i32(tmp, cpu_env, offset);
- return tmp;
-}
-
-#define load_cpu_field(name) load_cpu_offset(offsetof(CPUState, name))
-
-static inline void store_cpu_offset(TCGv var, int offset)
-{
- tcg_gen_st_i32(var, cpu_env, offset);
- dead_tmp(var);
-}
-
-#define store_cpu_field(var, name) \
- store_cpu_offset(var, offsetof(CPUState, name))
-
-/* Set a variable to the value of a CPU register. */
-static void load_reg_var(DisasContext *s, TCGv var, int reg)
-{
- if (reg == 15) {
- uint32_t addr;
- /* normaly, since we updated PC, we need only to add one insn */
- if (s->thumb)
- addr = (long)s->pc + 2;
- else
- addr = (long)s->pc + 4;
- tcg_gen_movi_i32(var, addr);
- } else {
- tcg_gen_ld_i32(var, cpu_env, offsetof(CPUState, regs[reg]));
- }
-}
-
-/* Create a new temporary and set it to the value of a CPU register. */
-static inline TCGv load_reg(DisasContext *s, int reg)
-{
- TCGv tmp = new_tmp();
- load_reg_var(s, tmp, reg);
- return tmp;
-}
-
-/* Set a CPU register. The source must be a temporary and will be
- marked as dead. */
-static void store_reg(DisasContext *s, int reg, TCGv var)
-{
- if (reg == 15) {
- tcg_gen_andi_i32(var, var, ~1);
- s->is_jmp = DISAS_JUMP;
- }
- tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, regs[reg]));
- dead_tmp(var);
-}
-
-
-/* Basic operations. */
-#define gen_op_movl_T0_T1() tcg_gen_mov_i32(cpu_T[0], cpu_T[1])
-#define gen_op_movl_T1_T0() tcg_gen_mov_i32(cpu_T[1], cpu_T[0])
-#define gen_op_movl_T0_im(im) tcg_gen_movi_i32(cpu_T[0], im)
-#define gen_op_movl_T1_im(im) tcg_gen_movi_i32(cpu_T[1], im)
-
-#define gen_op_addl_T1_im(im) tcg_gen_addi_i32(cpu_T[1], cpu_T[1], im)
-#define gen_op_addl_T0_T1() tcg_gen_add_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_subl_T0_T1() tcg_gen_sub_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_rsbl_T0_T1() tcg_gen_sub_i32(cpu_T[0], cpu_T[1], cpu_T[0])
-
-#define gen_op_addl_T0_T1_cc() gen_helper_add_cc(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_adcl_T0_T1_cc() gen_helper_adc_cc(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_subl_T0_T1_cc() gen_helper_sub_cc(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_sbcl_T0_T1_cc() gen_helper_sbc_cc(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_rsbl_T0_T1_cc() gen_helper_sub_cc(cpu_T[0], cpu_T[1], cpu_T[0])
-#define gen_op_rscl_T0_T1_cc() gen_helper_sbc_cc(cpu_T[0], cpu_T[1], cpu_T[0])
-
-#define gen_op_andl_T0_T1() tcg_gen_and_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_xorl_T0_T1() tcg_gen_xor_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_orl_T0_T1() tcg_gen_or_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_op_notl_T0() tcg_gen_not_i32(cpu_T[0], cpu_T[0])
-#define gen_op_notl_T1() tcg_gen_not_i32(cpu_T[1], cpu_T[1])
-#define gen_op_logic_T0_cc() gen_logic_CC(cpu_T[0]);
-#define gen_op_logic_T1_cc() gen_logic_CC(cpu_T[1]);
-
-#define gen_op_shll_T0_im(im) tcg_gen_shli_i32(cpu_T[0], cpu_T[0], im)
-#define gen_op_shll_T1_im(im) tcg_gen_shli_i32(cpu_T[1], cpu_T[1], im)
-#define gen_op_shrl_T1_im(im) tcg_gen_shri_i32(cpu_T[1], cpu_T[1], im)
-#define gen_op_sarl_T1_im(im) tcg_gen_sari_i32(cpu_T[1], cpu_T[1], im)
-#define gen_op_rorl_T1_im(im) tcg_gen_rori_i32(cpu_T[1], cpu_T[1], im)
-
-/* Value extensions. */
-#define gen_uxtb(var) tcg_gen_ext8u_i32(var, var)
-#define gen_uxth(var) tcg_gen_ext16u_i32(var, var)
-#define gen_sxtb(var) tcg_gen_ext8s_i32(var, var)
-#define gen_sxth(var) tcg_gen_ext16s_i32(var, var)
-
-#define gen_sxtb16(var) gen_helper_sxtb16(var, var)
-#define gen_uxtb16(var) gen_helper_uxtb16(var, var)
-
-#define gen_op_mul_T0_T1() tcg_gen_mul_i32(cpu_T[0], cpu_T[0], cpu_T[1])
-
-#define gen_set_cpsr(var, mask) gen_helper_cpsr_write(var, tcg_const_i32(mask))
-/* Set NZCV flags from the high 4 bits of var. */
-#define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV)
-
-#ifdef CONFIG_TRACE
-static void gen_traceTicks(int count)
-{
- TCGv t0 = new_tmp();
- tcg_gen_movi_i32(t0, count);
- gen_helper_traceTicks(t0);
- dead_tmp(t0);
-}
-
-static void gen_traceBB(uint64_t bb_num, target_phys_addr_t tb)
-{
-#if HOST_LONG_BITS ==64
- TCGv t0 = tcg_const_i64(bb_num);
- TCGv t1 = tcg_const_i64(tb);
- gen_helper_traceBB64(t0, t1);
- tcg_temp_free(t1);
- tcg_temp_free(t0);
-#else
- TCGv t0 = new_tmp();
- TCGv t1 = new_tmp();
- TCGv t2 = new_tmp();
- tcg_gen_movi_i32(t0, (int32_t)(bb_num >> 32));
- tcg_gen_movi_i32(t1, (int32_t)(bb_num));
- tcg_gen_movi_i32(t2, (int32_t)tb);
- gen_helper_traceBB32(t0, t1, t2);
- dead_tmp(t2);
- dead_tmp(t1);
- dead_tmp(t0);
-#endif
-}
-#endif /* CONFIG_TRACE */
-
-static void gen_exception(int excp)
-{
- TCGv tmp = new_tmp();
- tcg_gen_movi_i32(tmp, excp);
- gen_helper_exception(tmp);
- dead_tmp(tmp);
-}
-
-static void gen_smul_dual(TCGv a, TCGv b)
-{
- TCGv tmp1 = new_tmp();
- TCGv tmp2 = new_tmp();
- tcg_gen_ext16s_i32(tmp1, a);
- tcg_gen_ext16s_i32(tmp2, b);
- tcg_gen_mul_i32(tmp1, tmp1, tmp2);
- dead_tmp(tmp2);
- tcg_gen_sari_i32(a, a, 16);
- tcg_gen_sari_i32(b, b, 16);
- tcg_gen_mul_i32(b, b, a);
- tcg_gen_mov_i32(a, tmp1);
- dead_tmp(tmp1);
-}
-
-/* Byteswap each halfword. */
-static void gen_rev16(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_shri_i32(tmp, var, 8);
- tcg_gen_andi_i32(tmp, tmp, 0x00ff00ff);
- tcg_gen_shli_i32(var, var, 8);
- tcg_gen_andi_i32(var, var, 0xff00ff00);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-/* Byteswap low halfword and sign extend. */
-static void gen_revsh(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_shri_i32(tmp, var, 8);
- tcg_gen_andi_i32(tmp, tmp, 0x00ff);
- tcg_gen_shli_i32(var, var, 8);
- tcg_gen_ext8s_i32(var, var);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-/* Unsigned bitfield extract. */
-static void gen_ubfx(TCGv var, int shift, uint32_t mask)
-{
- if (shift)
- tcg_gen_shri_i32(var, var, shift);
- tcg_gen_andi_i32(var, var, mask);
-}
-
-/* Signed bitfield extract. */
-static void gen_sbfx(TCGv var, int shift, int width)
-{
- uint32_t signbit;
-
- if (shift)
- tcg_gen_sari_i32(var, var, shift);
- if (shift + width < 32) {
- signbit = 1u << (width - 1);
- tcg_gen_andi_i32(var, var, (1u << width) - 1);
- tcg_gen_xori_i32(var, var, signbit);
- tcg_gen_subi_i32(var, var, signbit);
- }
-}
-
-/* Bitfield insertion. Insert val into base. Clobbers base and val. */
-static void gen_bfi(TCGv dest, TCGv base, TCGv val, int shift, uint32_t mask)
-{
- tcg_gen_andi_i32(val, val, mask);
- tcg_gen_shli_i32(val, val, shift);
- tcg_gen_andi_i32(base, base, ~(mask << shift));
- tcg_gen_or_i32(dest, base, val);
-}
-
-/* Round the top 32 bits of a 64-bit value. */
-static void gen_roundqd(TCGv a, TCGv b)
-{
- tcg_gen_shri_i32(a, a, 31);
- tcg_gen_add_i32(a, a, b);
-}
-
-/* FIXME: Most targets have native widening multiplication.
- It would be good to use that instead of a full wide multiply. */
-/* 32x32->64 multiply. Marks inputs as dead. */
-static TCGv gen_mulu_i64_i32(TCGv a, TCGv b)
-{
- TCGv tmp1 = tcg_temp_new(TCG_TYPE_I64);
- TCGv tmp2 = tcg_temp_new(TCG_TYPE_I64);
-
- tcg_gen_extu_i32_i64(tmp1, a);
- dead_tmp(a);
- tcg_gen_extu_i32_i64(tmp2, b);
- dead_tmp(b);
- tcg_gen_mul_i64(tmp1, tmp1, tmp2);
- return tmp1;
-}
-
-static TCGv gen_muls_i64_i32(TCGv a, TCGv b)
-{
- TCGv tmp1 = tcg_temp_new(TCG_TYPE_I64);
- TCGv tmp2 = tcg_temp_new(TCG_TYPE_I64);
-
- tcg_gen_ext_i32_i64(tmp1, a);
- dead_tmp(a);
- tcg_gen_ext_i32_i64(tmp2, b);
- dead_tmp(b);
- tcg_gen_mul_i64(tmp1, tmp1, tmp2);
- return tmp1;
-}
-
-/* Unsigned 32x32->64 multiply. */
-static void gen_op_mull_T0_T1(void)
-{
- TCGv tmp1 = tcg_temp_new(TCG_TYPE_I64);
- TCGv tmp2 = tcg_temp_new(TCG_TYPE_I64);
-
- tcg_gen_extu_i32_i64(tmp1, cpu_T[0]);
- tcg_gen_extu_i32_i64(tmp2, cpu_T[1]);
- tcg_gen_mul_i64(tmp1, tmp1, tmp2);
- tcg_gen_trunc_i64_i32(cpu_T[0], tmp1);
- tcg_gen_shri_i64(tmp1, tmp1, 32);
- tcg_gen_trunc_i64_i32(cpu_T[1], tmp1);
-}
-
-/* Signed 32x32->64 multiply. */
-static void gen_imull(TCGv a, TCGv b)
-{
- TCGv tmp1 = tcg_temp_new(TCG_TYPE_I64);
- TCGv tmp2 = tcg_temp_new(TCG_TYPE_I64);
-
- tcg_gen_ext_i32_i64(tmp1, a);
- tcg_gen_ext_i32_i64(tmp2, b);
- tcg_gen_mul_i64(tmp1, tmp1, tmp2);
- tcg_gen_trunc_i64_i32(a, tmp1);
- tcg_gen_shri_i64(tmp1, tmp1, 32);
- tcg_gen_trunc_i64_i32(b, tmp1);
-}
-#define gen_op_imull_T0_T1() gen_imull(cpu_T[0], cpu_T[1])
-
-/* Swap low and high halfwords. */
-static void gen_swap_half(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_shri_i32(tmp, var, 16);
- tcg_gen_shli_i32(var, var, 16);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-/* Dual 16-bit add. Result placed in t0 and t1 is marked as dead.
- tmp = (t0 ^ t1) & 0x8000;
- t0 &= ~0x8000;
- t1 &= ~0x8000;
- t0 = (t0 + t1) ^ tmp;
- */
-
-static void gen_add16(TCGv t0, TCGv t1)
-{
- TCGv tmp = new_tmp();
- tcg_gen_xor_i32(tmp, t0, t1);
- tcg_gen_andi_i32(tmp, tmp, 0x8000);
- tcg_gen_andi_i32(t0, t0, ~0x8000);
- tcg_gen_andi_i32(t1, t1, ~0x8000);
- tcg_gen_add_i32(t0, t0, t1);
- tcg_gen_xor_i32(t0, t0, tmp);
- dead_tmp(tmp);
- dead_tmp(t1);
-}
-
-#define gen_set_CF(var) tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, CF))
-
-/* Set CF to the top bit of var. */
-static void gen_set_CF_bit31(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_shri_i32(tmp, var, 31);
- gen_set_CF(var);
- dead_tmp(tmp);
-}
-
-/* Set N and Z flags from var. */
-static inline void gen_logic_CC(TCGv var)
-{
- tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, NF));
- tcg_gen_st_i32(var, cpu_env, offsetof(CPUState, ZF));
-}
-
-/* T0 += T1 + CF. */
-static void gen_adc_T0_T1(void)
-{
- TCGv tmp;
- gen_op_addl_T0_T1();
- tmp = load_cpu_field(CF);
- tcg_gen_add_i32(cpu_T[0], cpu_T[0], tmp);
- dead_tmp(tmp);
-}
-
-/* dest = T0 - T1 + CF - 1. */
-static void gen_sub_carry(TCGv dest, TCGv t0, TCGv t1)
-{
- TCGv tmp;
- tcg_gen_sub_i32(dest, t0, t1);
- tmp = load_cpu_field(CF);
- tcg_gen_add_i32(dest, dest, tmp);
- tcg_gen_subi_i32(dest, dest, 1);
- dead_tmp(tmp);
-}
-
-#define gen_sbc_T0_T1() gen_sub_carry(cpu_T[0], cpu_T[0], cpu_T[1])
-#define gen_rsc_T0_T1() gen_sub_carry(cpu_T[0], cpu_T[1], cpu_T[0])
-
-/* T0 &= ~T1. Clobbers T1. */
-/* FIXME: Implement bic natively. */
-static inline void tcg_gen_bic_i32(TCGv dest, TCGv t0, TCGv t1)
-{
- TCGv tmp = new_tmp();
- tcg_gen_not_i32(tmp, t1);
- tcg_gen_and_i32(dest, t0, tmp);
- dead_tmp(tmp);
-}
-static inline void gen_op_bicl_T0_T1(void)
-{
- gen_op_notl_T1();
- gen_op_andl_T0_T1();
-}
-
-/* FIXME: Implement this natively. */
-#define tcg_gen_abs_i32(t0, t1) gen_helper_abs(t0, t1)
-
-/* FIXME: Implement this natively. */
-static void tcg_gen_rori_i32(TCGv t0, TCGv t1, int i)
-{
- TCGv tmp;
-
- if (i == 0)
- return;
-
- tmp = new_tmp();
- tcg_gen_shri_i32(tmp, t1, i);
- tcg_gen_shli_i32(t1, t1, 32 - i);
- tcg_gen_or_i32(t0, t1, tmp);
- dead_tmp(tmp);
-}
-
-static void shifter_out_im(TCGv var, int shift)
-{
- TCGv tmp = new_tmp();
- if (shift == 0) {
- tcg_gen_andi_i32(tmp, var, 1);
- } else {
- tcg_gen_shri_i32(tmp, var, shift);
- if (shift != 31);
- tcg_gen_andi_i32(tmp, tmp, 1);
- }
- gen_set_CF(tmp);
- dead_tmp(tmp);
-}
-
-/* Shift by immediate. Includes special handling for shift == 0. */
-static inline void gen_arm_shift_im(TCGv var, int shiftop, int shift, int flags)
-{
- switch (shiftop) {
- case 0: /* LSL */
- if (shift != 0) {
- if (flags)
- shifter_out_im(var, 32 - shift);
- tcg_gen_shli_i32(var, var, shift);
- }
- break;
- case 1: /* LSR */
- if (shift == 0) {
- if (flags) {
- tcg_gen_shri_i32(var, var, 31);
- gen_set_CF(var);
- }
- tcg_gen_movi_i32(var, 0);
- } else {
- if (flags)
- shifter_out_im(var, shift - 1);
- tcg_gen_shri_i32(var, var, shift);
- }
- break;
- case 2: /* ASR */
- if (shift == 0)
- shift = 32;
- if (flags)
- shifter_out_im(var, shift - 1);
- if (shift == 32)
- shift = 31;
- tcg_gen_sari_i32(var, var, shift);
- break;
- case 3: /* ROR/RRX */
- if (shift != 0) {
- if (flags)
- shifter_out_im(var, shift - 1);
- tcg_gen_rori_i32(var, var, shift); break;
- } else {
- TCGv tmp = load_cpu_field(CF);
- if (flags)
- shifter_out_im(var, 0);
- tcg_gen_shri_i32(var, var, 1);
- tcg_gen_shli_i32(tmp, tmp, 31);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
- }
- }
-};
-
-static inline void gen_arm_shift_reg(TCGv var, int shiftop,
- TCGv shift, int flags)
-{
- if (flags) {
- switch (shiftop) {
- case 0: gen_helper_shl_cc(var, var, shift); break;
- case 1: gen_helper_shr_cc(var, var, shift); break;
- case 2: gen_helper_sar_cc(var, var, shift); break;
- case 3: gen_helper_ror_cc(var, var, shift); break;
- }
- } else {
- switch (shiftop) {
- case 0: gen_helper_shl(var, var, shift); break;
- case 1: gen_helper_shr(var, var, shift); break;
- case 2: gen_helper_sar(var, var, shift); break;
- case 3: gen_helper_ror(var, var, shift); break;
- }
- }
- dead_tmp(shift);
-}
-
-#define PAS_OP(pfx) \
- switch (op2) { \
- case 0: gen_pas_helper(glue(pfx,add16)); break; \
- case 1: gen_pas_helper(glue(pfx,addsubx)); break; \
- case 2: gen_pas_helper(glue(pfx,subaddx)); break; \
- case 3: gen_pas_helper(glue(pfx,sub16)); break; \
- case 4: gen_pas_helper(glue(pfx,add8)); break; \
- case 7: gen_pas_helper(glue(pfx,sub8)); break; \
- }
-static void gen_arm_parallel_addsub(int op1, int op2, TCGv a, TCGv b)
-{
- TCGv tmp;
-
- switch (op1) {
-#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
- case 1:
- tmp = tcg_temp_new(TCG_TYPE_PTR);
- tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
- PAS_OP(s)
- break;
- case 5:
- tmp = tcg_temp_new(TCG_TYPE_PTR);
- tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
- PAS_OP(u)
- break;
-#undef gen_pas_helper
-#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
- case 2:
- PAS_OP(q);
- break;
- case 3:
- PAS_OP(sh);
- break;
- case 6:
- PAS_OP(uq);
- break;
- case 7:
- PAS_OP(uh);
- break;
-#undef gen_pas_helper
- }
-}
-#undef PAS_OP
-
-/* For unknown reasons Arm and Thumb-2 use arbitrarily different encodings. */
-#define PAS_OP(pfx) \
- switch (op2) { \
- case 0: gen_pas_helper(glue(pfx,add8)); break; \
- case 1: gen_pas_helper(glue(pfx,add16)); break; \
- case 2: gen_pas_helper(glue(pfx,addsubx)); break; \
- case 4: gen_pas_helper(glue(pfx,sub8)); break; \
- case 5: gen_pas_helper(glue(pfx,sub16)); break; \
- case 6: gen_pas_helper(glue(pfx,subaddx)); break; \
- }
-static void gen_thumb2_parallel_addsub(int op1, int op2, TCGv a, TCGv b)
-{
- TCGv tmp;
-
- switch (op1) {
-#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b, tmp)
- case 0:
- tmp = tcg_temp_new(TCG_TYPE_PTR);
- tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
- PAS_OP(s)
- break;
- case 4:
- tmp = tcg_temp_new(TCG_TYPE_PTR);
- tcg_gen_addi_ptr(tmp, cpu_env, offsetof(CPUState, GE));
- PAS_OP(u)
- break;
-#undef gen_pas_helper
-#define gen_pas_helper(name) glue(gen_helper_,name)(a, a, b)
- case 1:
- PAS_OP(q);
- break;
- case 2:
- PAS_OP(sh);
- break;
- case 5:
- PAS_OP(uq);
- break;
- case 6:
- PAS_OP(uh);
- break;
-#undef gen_pas_helper
- }
-}
-#undef PAS_OP
-
-static void gen_test_cc(int cc, int label)
-{
- TCGv tmp;
- TCGv tmp2;
- int inv;
-
- switch (cc) {
- case 0: /* eq: Z */
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
- break;
- case 1: /* ne: !Z */
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
- break;
- case 2: /* cs: C */
- tmp = load_cpu_field(CF);
- tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
- break;
- case 3: /* cc: !C */
- tmp = load_cpu_field(CF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
- break;
- case 4: /* mi: N */
- tmp = load_cpu_field(NF);
- tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
- break;
- case 5: /* pl: !N */
- tmp = load_cpu_field(NF);
- tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
- break;
- case 6: /* vs: V */
- tmp = load_cpu_field(VF);
- tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
- break;
- case 7: /* vc: !V */
- tmp = load_cpu_field(VF);
- tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
- break;
- case 8: /* hi: C && !Z */
- inv = gen_new_label();
- tmp = load_cpu_field(CF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
- dead_tmp(tmp);
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, label);
- gen_set_label(inv);
- break;
- case 9: /* ls: !C || Z */
- tmp = load_cpu_field(CF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
- dead_tmp(tmp);
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
- break;
- case 10: /* ge: N == V -> N ^ V == 0 */
- tmp = load_cpu_field(VF);
- tmp2 = load_cpu_field(NF);
- tcg_gen_xor_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
- break;
- case 11: /* lt: N != V -> N ^ V != 0 */
- tmp = load_cpu_field(VF);
- tmp2 = load_cpu_field(NF);
- tcg_gen_xor_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
- break;
- case 12: /* gt: !Z && N == V */
- inv = gen_new_label();
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, inv);
- dead_tmp(tmp);
- tmp = load_cpu_field(VF);
- tmp2 = load_cpu_field(NF);
- tcg_gen_xor_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_brcondi_i32(TCG_COND_GE, tmp, 0, label);
- gen_set_label(inv);
- break;
- case 13: /* le: Z || N != V */
- tmp = load_cpu_field(ZF);
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
- dead_tmp(tmp);
- tmp = load_cpu_field(VF);
- tmp2 = load_cpu_field(NF);
- tcg_gen_xor_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_brcondi_i32(TCG_COND_LT, tmp, 0, label);
- break;
- default:
- fprintf(stderr, "Bad condition code 0x%x\n", cc);
- abort();
- }
- dead_tmp(tmp);
-}
-
-const uint8_t table_logic_cc[16] = {
- 1, /* and */
- 1, /* xor */
- 0, /* sub */
- 0, /* rsb */
- 0, /* add */
- 0, /* adc */
- 0, /* sbc */
- 0, /* rsc */
- 1, /* andl */
- 1, /* xorl */
- 0, /* cmp */
- 0, /* cmn */
- 1, /* orr */
- 1, /* mov */
- 1, /* bic */
- 1, /* mvn */
-};
-
-/* Set PC and Thumb state from an immediate address. */
-static inline void gen_bx_im(DisasContext *s, uint32_t addr)
-{
- TCGv tmp;
-
- s->is_jmp = DISAS_UPDATE;
- tmp = new_tmp();
- if (s->thumb != (addr & 1)) {
- tcg_gen_movi_i32(tmp, addr & 1);
- tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, thumb));
- }
- tcg_gen_movi_i32(tmp, addr & ~1);
- tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, regs[15]));
- dead_tmp(tmp);
-}
-
-/* Set PC and Thumb state from var. var is marked as dead. */
-static inline void gen_bx(DisasContext *s, TCGv var)
-{
- TCGv tmp;
-
- s->is_jmp = DISAS_UPDATE;
- tmp = new_tmp();
- tcg_gen_andi_i32(tmp, var, 1);
- store_cpu_field(tmp, thumb);
- tcg_gen_andi_i32(var, var, ~1);
- store_cpu_field(var, regs[15]);
-}
-
-/* TODO: This should be removed. Use gen_bx instead. */
-static inline void gen_bx_T0(DisasContext *s)
-{
- TCGv tmp = new_tmp();
- tcg_gen_mov_i32(tmp, cpu_T[0]);
- gen_bx(s, tmp);
-}
-
-#if defined(CONFIG_USER_ONLY)
-#define gen_ldst(name, s) gen_op_##name##_raw()
-#else
-#define gen_ldst(name, s) do { \
- s->is_mem = 1; \
- if (IS_USER(s)) \
- gen_op_##name##_user(); \
- else \
- gen_op_##name##_kernel(); \
- } while (0)
-#endif
-static inline TCGv gen_ld8s(TCGv addr, int index)
-{
- TCGv tmp = new_tmp();
- tcg_gen_qemu_ld8s(tmp, addr, index);
- return tmp;
-}
-static inline TCGv gen_ld8u(TCGv addr, int index)
-{
- TCGv tmp = new_tmp();
- tcg_gen_qemu_ld8u(tmp, addr, index);
- return tmp;
-}
-static inline TCGv gen_ld16s(TCGv addr, int index)
-{
- TCGv tmp = new_tmp();
- tcg_gen_qemu_ld16s(tmp, addr, index);
- return tmp;
-}
-static inline TCGv gen_ld16u(TCGv addr, int index)
-{
- TCGv tmp = new_tmp();
- tcg_gen_qemu_ld16u(tmp, addr, index);
- return tmp;
-}
-static inline TCGv gen_ld32(TCGv addr, int index)
-{
- TCGv tmp = new_tmp();
- tcg_gen_qemu_ld32u(tmp, addr, index);
- return tmp;
-}
-static inline void gen_st8(TCGv val, TCGv addr, int index)
-{
- tcg_gen_qemu_st8(val, addr, index);
- dead_tmp(val);
-}
-static inline void gen_st16(TCGv val, TCGv addr, int index)
-{
- tcg_gen_qemu_st16(val, addr, index);
- dead_tmp(val);
-}
-static inline void gen_st32(TCGv val, TCGv addr, int index)
-{
- tcg_gen_qemu_st32(val, addr, index);
- dead_tmp(val);
-}
-
-static inline void gen_movl_T0_reg(DisasContext *s, int reg)
-{
- load_reg_var(s, cpu_T[0], reg);
-}
-
-static inline void gen_movl_T1_reg(DisasContext *s, int reg)
-{
- load_reg_var(s, cpu_T[1], reg);
-}
-
-static inline void gen_movl_T2_reg(DisasContext *s, int reg)
-{
- load_reg_var(s, cpu_T[2], reg);
-}
-
-static inline void gen_set_pc_im(uint32_t val)
-{
- TCGv tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- store_cpu_field(tmp, regs[15]);
-}
-
-static inline void gen_movl_reg_TN(DisasContext *s, int reg, int t)
-{
- TCGv tmp;
- if (reg == 15) {
- tmp = new_tmp();
- tcg_gen_andi_i32(tmp, cpu_T[t], ~1);
- } else {
- tmp = cpu_T[t];
- }
- tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, regs[reg]));
- if (reg == 15) {
- dead_tmp(tmp);
- s->is_jmp = DISAS_JUMP;
- }
-}
-
-static inline void gen_movl_reg_T0(DisasContext *s, int reg)
-{
- gen_movl_reg_TN(s, reg, 0);
-}
-
-static inline void gen_movl_reg_T1(DisasContext *s, int reg)
-{
- gen_movl_reg_TN(s, reg, 1);
-}
-
-/* Force a TB lookup after an instruction that changes the CPU state. */
-static inline void gen_lookup_tb(DisasContext *s)
-{
- gen_op_movl_T0_im(s->pc);
- gen_movl_reg_T0(s, 15);
- s->is_jmp = DISAS_UPDATE;
-}
-
-static inline void gen_add_data_offset(DisasContext *s, unsigned int insn,
- TCGv var)
-{
- int val, rm, shift, shiftop;
- TCGv offset;
-
- if (!(insn & (1 << 25))) {
- /* immediate */
- val = insn & 0xfff;
- if (!(insn & (1 << 23)))
- val = -val;
- if (val != 0)
- tcg_gen_addi_i32(var, var, val);
- } else {
- /* shift/register */
- rm = (insn) & 0xf;
- shift = (insn >> 7) & 0x1f;
- shiftop = (insn >> 5) & 3;
- offset = load_reg(s, rm);
- gen_arm_shift_im(offset, shiftop, shift, 0);
- if (!(insn & (1 << 23)))
- tcg_gen_sub_i32(var, var, offset);
- else
- tcg_gen_add_i32(var, var, offset);
- dead_tmp(offset);
- }
-}
-
-static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn,
- int extra, TCGv var)
-{
- int val, rm;
- TCGv offset;
-
- if (insn & (1 << 22)) {
- /* immediate */
- val = (insn & 0xf) | ((insn >> 4) & 0xf0);
- if (!(insn & (1 << 23)))
- val = -val;
- val += extra;
- if (val != 0)
- tcg_gen_addi_i32(var, var, val);
- } else {
- /* register */
- if (extra)
- tcg_gen_addi_i32(var, var, extra);
- rm = (insn) & 0xf;
- offset = load_reg(s, rm);
- if (!(insn & (1 << 23)))
- tcg_gen_sub_i32(var, var, offset);
- else
- tcg_gen_add_i32(var, var, offset);
- dead_tmp(offset);
- }
-}
-
-#define VFP_OP2(name) \
-static inline void gen_vfp_##name(int dp) \
-{ \
- if (dp) \
- gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, cpu_F1d, cpu_env); \
- else \
- gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, cpu_F1s, cpu_env); \
-}
-
-#define VFP_OP1(name) \
-static inline void gen_vfp_##name(int dp, int arg) \
-{ \
- if (dp) \
- gen_op_vfp_##name##d(arg); \
- else \
- gen_op_vfp_##name##s(arg); \
-}
-
-VFP_OP2(add)
-VFP_OP2(sub)
-VFP_OP2(mul)
-VFP_OP2(div)
-
-#undef VFP_OP2
-
-static inline void gen_vfp_abs(int dp)
-{
- if (dp)
- gen_helper_vfp_absd(cpu_F0d, cpu_F0d);
- else
- gen_helper_vfp_abss(cpu_F0s, cpu_F0s);
-}
-
-static inline void gen_vfp_neg(int dp)
-{
- if (dp)
- gen_helper_vfp_negd(cpu_F0d, cpu_F0d);
- else
- gen_helper_vfp_negs(cpu_F0s, cpu_F0s);
-}
-
-static inline void gen_vfp_sqrt(int dp)
-{
- if (dp)
- gen_helper_vfp_sqrtd(cpu_F0d, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_sqrts(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_cmp(int dp)
-{
- if (dp)
- gen_helper_vfp_cmpd(cpu_F0d, cpu_F1d, cpu_env);
- else
- gen_helper_vfp_cmps(cpu_F0s, cpu_F1s, cpu_env);
-}
-
-static inline void gen_vfp_cmpe(int dp)
-{
- if (dp)
- gen_helper_vfp_cmped(cpu_F0d, cpu_F1d, cpu_env);
- else
- gen_helper_vfp_cmpes(cpu_F0s, cpu_F1s, cpu_env);
-}
-
-static inline void gen_vfp_F1_ld0(int dp)
-{
- if (dp)
- tcg_gen_movi_i64(cpu_F1d, 0);
- else
- tcg_gen_movi_i32(cpu_F1s, 0);
-}
-
-static inline void gen_vfp_uito(int dp)
-{
- if (dp)
- gen_helper_vfp_uitod(cpu_F0d, cpu_F0s, cpu_env);
- else
- gen_helper_vfp_uitos(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_sito(int dp)
-{
- if (dp)
- gen_helper_vfp_sitod(cpu_F0d, cpu_F0s, cpu_env);
- else
- gen_helper_vfp_sitos(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_toui(int dp)
-{
- if (dp)
- gen_helper_vfp_touid(cpu_F0s, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_touis(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_touiz(int dp)
-{
- if (dp)
- gen_helper_vfp_touizd(cpu_F0s, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_touizs(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_tosi(int dp)
-{
- if (dp)
- gen_helper_vfp_tosid(cpu_F0s, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_tosis(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-static inline void gen_vfp_tosiz(int dp)
-{
- if (dp)
- gen_helper_vfp_tosizd(cpu_F0s, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_tosizs(cpu_F0s, cpu_F0s, cpu_env);
-}
-
-#define VFP_GEN_FIX(name) \
-static inline void gen_vfp_##name(int dp, int shift) \
-{ \
- if (dp) \
- gen_helper_vfp_##name##d(cpu_F0d, cpu_F0d, tcg_const_i32(shift), cpu_env);\
- else \
- gen_helper_vfp_##name##s(cpu_F0s, cpu_F0s, tcg_const_i32(shift), cpu_env);\
-}
-VFP_GEN_FIX(tosh)
-VFP_GEN_FIX(tosl)
-VFP_GEN_FIX(touh)
-VFP_GEN_FIX(toul)
-VFP_GEN_FIX(shto)
-VFP_GEN_FIX(slto)
-VFP_GEN_FIX(uhto)
-VFP_GEN_FIX(ulto)
-#undef VFP_GEN_FIX
-
-static inline void gen_vfp_ld(DisasContext *s, int dp)
-{
- if (dp)
- tcg_gen_qemu_ld64(cpu_F0d, cpu_T[1], IS_USER(s));
- else
- tcg_gen_qemu_ld32u(cpu_F0s, cpu_T[1], IS_USER(s));
-}
-
-static inline void gen_vfp_st(DisasContext *s, int dp)
-{
- if (dp)
- tcg_gen_qemu_st64(cpu_F0d, cpu_T[1], IS_USER(s));
- else
- tcg_gen_qemu_st32(cpu_F0s, cpu_T[1], IS_USER(s));
-}
-
-static inline long
-vfp_reg_offset (int dp, int reg)
-{
- if (dp)
- return offsetof(CPUARMState, vfp.regs[reg]);
- else if (reg & 1) {
- return offsetof(CPUARMState, vfp.regs[reg >> 1])
- + offsetof(CPU_DoubleU, l.upper);
- } else {
- return offsetof(CPUARMState, vfp.regs[reg >> 1])
- + offsetof(CPU_DoubleU, l.lower);
- }
-}
-
-/* Return the offset of a 32-bit piece of a NEON register.
- zero is the least significant end of the register. */
-static inline long
-neon_reg_offset (int reg, int n)
-{
- int sreg;
- sreg = reg * 2 + n;
- return vfp_reg_offset(0, sreg);
-}
-
-/* FIXME: Remove these. */
-#define neon_T0 cpu_T[0]
-#define neon_T1 cpu_T[1]
-#define NEON_GET_REG(T, reg, n) \
- tcg_gen_ld_i32(neon_##T, cpu_env, neon_reg_offset(reg, n))
-#define NEON_SET_REG(T, reg, n) \
- tcg_gen_st_i32(neon_##T, cpu_env, neon_reg_offset(reg, n))
-
-static TCGv neon_load_reg(int reg, int pass)
-{
- TCGv tmp = new_tmp();
- tcg_gen_ld_i32(tmp, cpu_env, neon_reg_offset(reg, pass));
- return tmp;
-}
-
-static void neon_store_reg(int reg, int pass, TCGv var)
-{
- tcg_gen_st_i32(var, cpu_env, neon_reg_offset(reg, pass));
- dead_tmp(var);
-}
-
-static inline void neon_load_reg64(TCGv var, int reg)
-{
- tcg_gen_ld_i64(var, cpu_env, vfp_reg_offset(1, reg));
-}
-
-static inline void neon_store_reg64(TCGv var, int reg)
-{
- tcg_gen_st_i64(var, cpu_env, vfp_reg_offset(1, reg));
-}
-
-#define tcg_gen_ld_f32 tcg_gen_ld_i32
-#define tcg_gen_ld_f64 tcg_gen_ld_i64
-#define tcg_gen_st_f32 tcg_gen_st_i32
-#define tcg_gen_st_f64 tcg_gen_st_i64
-
-static inline void gen_mov_F0_vreg(int dp, int reg)
-{
- if (dp)
- tcg_gen_ld_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg));
- else
- tcg_gen_ld_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg));
-}
-
-static inline void gen_mov_F1_vreg(int dp, int reg)
-{
- if (dp)
- tcg_gen_ld_f64(cpu_F1d, cpu_env, vfp_reg_offset(dp, reg));
- else
- tcg_gen_ld_f32(cpu_F1s, cpu_env, vfp_reg_offset(dp, reg));
-}
-
-static inline void gen_mov_vreg_F0(int dp, int reg)
-{
- if (dp)
- tcg_gen_st_f64(cpu_F0d, cpu_env, vfp_reg_offset(dp, reg));
- else
- tcg_gen_st_f32(cpu_F0s, cpu_env, vfp_reg_offset(dp, reg));
-}
-
-#define ARM_CP_RW_BIT (1 << 20)
-
-static inline void iwmmxt_load_reg(TCGv var, int reg)
-{
- tcg_gen_ld_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg]));
-}
-
-static inline void iwmmxt_store_reg(TCGv var, int reg)
-{
- tcg_gen_st_i64(var, cpu_env, offsetof(CPUState, iwmmxt.regs[reg]));
-}
-
-static inline void gen_op_iwmmxt_movl_wCx_T0(int reg)
-{
- tcg_gen_st_i32(cpu_T[0], cpu_env, offsetof(CPUState, iwmmxt.cregs[reg]));
-}
-
-static inline void gen_op_iwmmxt_movl_T0_wCx(int reg)
-{
- tcg_gen_ld_i32(cpu_T[0], cpu_env, offsetof(CPUState, iwmmxt.cregs[reg]));
-}
-
-static inline void gen_op_iwmmxt_movl_T1_wCx(int reg)
-{
- tcg_gen_ld_i32(cpu_T[1], cpu_env, offsetof(CPUState, iwmmxt.cregs[reg]));
-}
-
-static inline void gen_op_iwmmxt_movq_wRn_M0(int rn)
-{
- iwmmxt_store_reg(cpu_M0, rn);
-}
-
-static inline void gen_op_iwmmxt_movq_M0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_M0, rn);
-}
-
-static inline void gen_op_iwmmxt_orq_M0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V1, rn);
- tcg_gen_or_i64(cpu_M0, cpu_M0, cpu_V1);
-}
-
-static inline void gen_op_iwmmxt_andq_M0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V1, rn);
- tcg_gen_and_i64(cpu_M0, cpu_M0, cpu_V1);
-}
-
-static inline void gen_op_iwmmxt_xorq_M0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V1, rn);
- tcg_gen_xor_i64(cpu_M0, cpu_M0, cpu_V1);
-}
-
-#define IWMMXT_OP(name) \
-static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \
-{ \
- iwmmxt_load_reg(cpu_V1, rn); \
- gen_helper_iwmmxt_##name(cpu_M0, cpu_M0, cpu_V1); \
-}
-
-#define IWMMXT_OP_ENV(name) \
-static inline void gen_op_iwmmxt_##name##_M0_wRn(int rn) \
-{ \
- iwmmxt_load_reg(cpu_V1, rn); \
- gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0, cpu_V1); \
-}
-
-#define IWMMXT_OP_ENV_SIZE(name) \
-IWMMXT_OP_ENV(name##b) \
-IWMMXT_OP_ENV(name##w) \
-IWMMXT_OP_ENV(name##l)
-
-#define IWMMXT_OP_ENV1(name) \
-static inline void gen_op_iwmmxt_##name##_M0(void) \
-{ \
- gen_helper_iwmmxt_##name(cpu_M0, cpu_env, cpu_M0); \
-}
-
-IWMMXT_OP(maddsq)
-IWMMXT_OP(madduq)
-IWMMXT_OP(sadb)
-IWMMXT_OP(sadw)
-IWMMXT_OP(mulslw)
-IWMMXT_OP(mulshw)
-IWMMXT_OP(mululw)
-IWMMXT_OP(muluhw)
-IWMMXT_OP(macsw)
-IWMMXT_OP(macuw)
-
-IWMMXT_OP_ENV_SIZE(unpackl)
-IWMMXT_OP_ENV_SIZE(unpackh)
-
-IWMMXT_OP_ENV1(unpacklub)
-IWMMXT_OP_ENV1(unpackluw)
-IWMMXT_OP_ENV1(unpacklul)
-IWMMXT_OP_ENV1(unpackhub)
-IWMMXT_OP_ENV1(unpackhuw)
-IWMMXT_OP_ENV1(unpackhul)
-IWMMXT_OP_ENV1(unpacklsb)
-IWMMXT_OP_ENV1(unpacklsw)
-IWMMXT_OP_ENV1(unpacklsl)
-IWMMXT_OP_ENV1(unpackhsb)
-IWMMXT_OP_ENV1(unpackhsw)
-IWMMXT_OP_ENV1(unpackhsl)
-
-IWMMXT_OP_ENV_SIZE(cmpeq)
-IWMMXT_OP_ENV_SIZE(cmpgtu)
-IWMMXT_OP_ENV_SIZE(cmpgts)
-
-IWMMXT_OP_ENV_SIZE(mins)
-IWMMXT_OP_ENV_SIZE(minu)
-IWMMXT_OP_ENV_SIZE(maxs)
-IWMMXT_OP_ENV_SIZE(maxu)
-
-IWMMXT_OP_ENV_SIZE(subn)
-IWMMXT_OP_ENV_SIZE(addn)
-IWMMXT_OP_ENV_SIZE(subu)
-IWMMXT_OP_ENV_SIZE(addu)
-IWMMXT_OP_ENV_SIZE(subs)
-IWMMXT_OP_ENV_SIZE(adds)
-
-IWMMXT_OP_ENV(avgb0)
-IWMMXT_OP_ENV(avgb1)
-IWMMXT_OP_ENV(avgw0)
-IWMMXT_OP_ENV(avgw1)
-
-IWMMXT_OP(msadb)
-
-IWMMXT_OP_ENV(packuw)
-IWMMXT_OP_ENV(packul)
-IWMMXT_OP_ENV(packuq)
-IWMMXT_OP_ENV(packsw)
-IWMMXT_OP_ENV(packsl)
-IWMMXT_OP_ENV(packsq)
-
-static inline void gen_op_iwmmxt_muladdsl_M0_T0_T1(void)
-{
- gen_helper_iwmmxt_muladdsl(cpu_M0, cpu_M0, cpu_T[0], cpu_T[1]);
-}
-
-static inline void gen_op_iwmmxt_muladdsw_M0_T0_T1(void)
-{
- gen_helper_iwmmxt_muladdsw(cpu_M0, cpu_M0, cpu_T[0], cpu_T[1]);
-}
-
-static inline void gen_op_iwmmxt_muladdswl_M0_T0_T1(void)
-{
- gen_helper_iwmmxt_muladdswl(cpu_M0, cpu_M0, cpu_T[0], cpu_T[1]);
-}
-
-static inline void gen_op_iwmmxt_align_M0_T0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V1, rn);
- gen_helper_iwmmxt_align(cpu_M0, cpu_M0, cpu_V1, cpu_T[0]);
-}
-
-static inline void gen_op_iwmmxt_insr_M0_T0_T1(int shift)
-{
- TCGv tmp = tcg_const_i32(shift);
- gen_helper_iwmmxt_insr(cpu_M0, cpu_M0, cpu_T[0], cpu_T[1], tmp);
-}
-
-static inline void gen_op_iwmmxt_extrsb_T0_M0(int shift)
-{
- tcg_gen_shri_i64(cpu_M0, cpu_M0, shift);
- tcg_gen_trunc_i64_i32(cpu_T[0], cpu_M0);
- tcg_gen_ext8s_i32(cpu_T[0], cpu_T[0]);
-}
-
-static inline void gen_op_iwmmxt_extrsw_T0_M0(int shift)
-{
- tcg_gen_shri_i64(cpu_M0, cpu_M0, shift);
- tcg_gen_trunc_i64_i32(cpu_T[0], cpu_M0);
- tcg_gen_ext16s_i32(cpu_T[0], cpu_T[0]);
-}
-
-static inline void gen_op_iwmmxt_extru_T0_M0(int shift, uint32_t mask)
-{
- tcg_gen_shri_i64(cpu_M0, cpu_M0, shift);
- tcg_gen_trunc_i64_i32(cpu_T[0], cpu_M0);
- if (mask != ~0u)
- tcg_gen_andi_i32(cpu_T[0], cpu_T[0], mask);
-}
-
-static void gen_op_iwmmxt_set_mup(void)
-{
- TCGv tmp;
- tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]);
- tcg_gen_ori_i32(tmp, tmp, 2);
- store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]);
-}
-
-static void gen_op_iwmmxt_set_cup(void)
-{
- TCGv tmp;
- tmp = load_cpu_field(iwmmxt.cregs[ARM_IWMMXT_wCon]);
- tcg_gen_ori_i32(tmp, tmp, 1);
- store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCon]);
-}
-
-static void gen_op_iwmmxt_setpsr_nz(void)
-{
- TCGv tmp = new_tmp();
- gen_helper_iwmmxt_setpsr_nz(tmp, cpu_M0);
- store_cpu_field(tmp, iwmmxt.cregs[ARM_IWMMXT_wCASF]);
-}
-
-static inline void gen_op_iwmmxt_addl_M0_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V1, rn);
- tcg_gen_ext32u_i64(cpu_V1, cpu_V1);
- tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1);
-}
-
-
-static void gen_iwmmxt_movl_T0_T1_wRn(int rn)
-{
- iwmmxt_load_reg(cpu_V0, rn);
- tcg_gen_trunc_i64_i32(cpu_T[0], cpu_V0);
- tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
- tcg_gen_trunc_i64_i32(cpu_T[1], cpu_V0);
-}
-
-static void gen_iwmmxt_movl_wRn_T0_T1(int rn)
-{
- tcg_gen_extu_i32_i64(cpu_V0, cpu_T[0]);
- tcg_gen_extu_i32_i64(cpu_V1, cpu_T[0]);
- tcg_gen_shli_i64(cpu_V1, cpu_V1, 32);
- tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
- iwmmxt_store_reg(cpu_V0, rn);
-}
-
-static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn)
-{
- int rd;
- uint32_t offset;
-
- rd = (insn >> 16) & 0xf;
- gen_movl_T1_reg(s, rd);
-
- offset = (insn & 0xff) << ((insn >> 7) & 2);
- if (insn & (1 << 24)) {
- /* Pre indexed */
- if (insn & (1 << 23))
- gen_op_addl_T1_im(offset);
- else
- gen_op_addl_T1_im(-offset);
-
- if (insn & (1 << 21))
- gen_movl_reg_T1(s, rd);
- } else if (insn & (1 << 21)) {
- /* Post indexed */
- if (insn & (1 << 23))
- gen_op_movl_T0_im(offset);
- else
- gen_op_movl_T0_im(- offset);
- gen_op_addl_T0_T1();
- gen_movl_reg_T0(s, rd);
- } else if (!(insn & (1 << 23)))
- return 1;
- return 0;
-}
-
-static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask)
-{
- int rd = (insn >> 0) & 0xf;
-
- if (insn & (1 << 8))
- if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3)
- return 1;
- else
- gen_op_iwmmxt_movl_T0_wCx(rd);
- else
- gen_iwmmxt_movl_T0_T1_wRn(rd);
-
- gen_op_movl_T1_im(mask);
- gen_op_andl_T0_T1();
- return 0;
-}
-
-/* Disassemble an iwMMXt instruction. Returns nonzero if an error occured
- (ie. an undefined instruction). */
-static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn)
-{
- int rd, wrd;
- int rdhi, rdlo, rd0, rd1, i;
- TCGv tmp;
-
- if ((insn & 0x0e000e00) == 0x0c000000) {
- if ((insn & 0x0fe00ff0) == 0x0c400000) {
- wrd = insn & 0xf;
- rdlo = (insn >> 12) & 0xf;
- rdhi = (insn >> 16) & 0xf;
- if (insn & ARM_CP_RW_BIT) { /* TMRRC */
- gen_iwmmxt_movl_T0_T1_wRn(wrd);
- gen_movl_reg_T0(s, rdlo);
- gen_movl_reg_T1(s, rdhi);
- } else { /* TMCRR */
- gen_movl_T0_reg(s, rdlo);
- gen_movl_T1_reg(s, rdhi);
- gen_iwmmxt_movl_wRn_T0_T1(wrd);
- gen_op_iwmmxt_set_mup();
- }
- return 0;
- }
-
- wrd = (insn >> 12) & 0xf;
- if (gen_iwmmxt_address(s, insn))
- return 1;
- if (insn & ARM_CP_RW_BIT) {
- if ((insn >> 28) == 0xf) { /* WLDRW wCx */
- tmp = gen_ld32(cpu_T[1], IS_USER(s));
- tcg_gen_mov_i32(cpu_T[0], tmp);
- dead_tmp(tmp);
- gen_op_iwmmxt_movl_wCx_T0(wrd);
- } else {
- i = 1;
- if (insn & (1 << 8)) {
- if (insn & (1 << 22)) { /* WLDRD */
- tcg_gen_qemu_ld64(cpu_M0, cpu_T[1], IS_USER(s));
- i = 0;
- } else { /* WLDRW wRd */
- tmp = gen_ld32(cpu_T[1], IS_USER(s));
- }
- } else {
- if (insn & (1 << 22)) { /* WLDRH */
- tmp = gen_ld16u(cpu_T[1], IS_USER(s));
- } else { /* WLDRB */
- tmp = gen_ld8u(cpu_T[1], IS_USER(s));
- }
- }
- if (i) {
- tcg_gen_extu_i32_i64(cpu_M0, tmp);
- dead_tmp(tmp);
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- }
- } else {
- if ((insn >> 28) == 0xf) { /* WSTRW wCx */
- gen_op_iwmmxt_movl_T0_wCx(wrd);
- tmp = new_tmp();
- tcg_gen_mov_i32(tmp, cpu_T[0]);
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- } else {
- gen_op_iwmmxt_movq_M0_wRn(wrd);
- tmp = new_tmp();
- if (insn & (1 << 8)) {
- if (insn & (1 << 22)) { /* WSTRD */
- dead_tmp(tmp);
- tcg_gen_qemu_st64(cpu_M0, cpu_T[1], IS_USER(s));
- } else { /* WSTRW wRd */
- tcg_gen_trunc_i64_i32(tmp, cpu_M0);
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- }
- } else {
- if (insn & (1 << 22)) { /* WSTRH */
- tcg_gen_trunc_i64_i32(tmp, cpu_M0);
- gen_st16(tmp, cpu_T[1], IS_USER(s));
- } else { /* WSTRB */
- tcg_gen_trunc_i64_i32(tmp, cpu_M0);
- gen_st8(tmp, cpu_T[1], IS_USER(s));
- }
- }
- }
- }
- return 0;
- }
-
- if ((insn & 0x0f000000) != 0x0e000000)
- return 1;
-
- switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) {
- case 0x000: /* WOR */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 0) & 0xf;
- rd1 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_iwmmxt_orq_M0_wRn(rd1);
- gen_op_iwmmxt_setpsr_nz();
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x011: /* TMCR */
- if (insn & 0xf)
- return 1;
- rd = (insn >> 12) & 0xf;
- wrd = (insn >> 16) & 0xf;
- switch (wrd) {
- case ARM_IWMMXT_wCID:
- case ARM_IWMMXT_wCASF:
- break;
- case ARM_IWMMXT_wCon:
- gen_op_iwmmxt_set_cup();
- /* Fall through. */
- case ARM_IWMMXT_wCSSF:
- gen_op_iwmmxt_movl_T0_wCx(wrd);
- gen_movl_T1_reg(s, rd);
- gen_op_bicl_T0_T1();
- gen_op_iwmmxt_movl_wCx_T0(wrd);
- break;
- case ARM_IWMMXT_wCGR0:
- case ARM_IWMMXT_wCGR1:
- case ARM_IWMMXT_wCGR2:
- case ARM_IWMMXT_wCGR3:
- gen_op_iwmmxt_set_cup();
- gen_movl_reg_T0(s, rd);
- gen_op_iwmmxt_movl_wCx_T0(wrd);
- break;
- default:
- return 1;
- }
- break;
- case 0x100: /* WXOR */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 0) & 0xf;
- rd1 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_iwmmxt_xorq_M0_wRn(rd1);
- gen_op_iwmmxt_setpsr_nz();
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x111: /* TMRC */
- if (insn & 0xf)
- return 1;
- rd = (insn >> 12) & 0xf;
- wrd = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movl_T0_wCx(wrd);
- gen_movl_reg_T0(s, rd);
- break;
- case 0x300: /* WANDN */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 0) & 0xf;
- rd1 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- tcg_gen_neg_i64(cpu_M0, cpu_M0);
- gen_op_iwmmxt_andq_M0_wRn(rd1);
- gen_op_iwmmxt_setpsr_nz();
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x200: /* WAND */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 0) & 0xf;
- rd1 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_iwmmxt_andq_M0_wRn(rd1);
- gen_op_iwmmxt_setpsr_nz();
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x810: case 0xa10: /* WMADD */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 0) & 0xf;
- rd1 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (insn & (1 << 21))
- gen_op_iwmmxt_maddsq_M0_wRn(rd1);
- else
- gen_op_iwmmxt_madduq_M0_wRn(rd1);
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_op_iwmmxt_unpacklb_M0_wRn(rd1);
- break;
- case 1:
- gen_op_iwmmxt_unpacklw_M0_wRn(rd1);
- break;
- case 2:
- gen_op_iwmmxt_unpackll_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_op_iwmmxt_unpackhb_M0_wRn(rd1);
- break;
- case 1:
- gen_op_iwmmxt_unpackhw_M0_wRn(rd1);
- break;
- case 2:
- gen_op_iwmmxt_unpackhl_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (insn & (1 << 22))
- gen_op_iwmmxt_sadw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_sadb_M0_wRn(rd1);
- if (!(insn & (1 << 20)))
- gen_op_iwmmxt_addl_M0_wRn(wrd);
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (insn & (1 << 21)) {
- if (insn & (1 << 20))
- gen_op_iwmmxt_mulshw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_mulslw_M0_wRn(rd1);
- } else {
- if (insn & (1 << 20))
- gen_op_iwmmxt_muluhw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_mululw_M0_wRn(rd1);
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (insn & (1 << 21))
- gen_op_iwmmxt_macsw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_macuw_M0_wRn(rd1);
- if (!(insn & (1 << 20))) {
- iwmmxt_load_reg(cpu_V1, wrd);
- tcg_gen_add_i64(cpu_M0, cpu_M0, cpu_V1);
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_op_iwmmxt_cmpeqb_M0_wRn(rd1);
- break;
- case 1:
- gen_op_iwmmxt_cmpeqw_M0_wRn(rd1);
- break;
- case 2:
- gen_op_iwmmxt_cmpeql_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (insn & (1 << 22)) {
- if (insn & (1 << 20))
- gen_op_iwmmxt_avgw1_M0_wRn(rd1);
- else
- gen_op_iwmmxt_avgw0_M0_wRn(rd1);
- } else {
- if (insn & (1 << 20))
- gen_op_iwmmxt_avgb1_M0_wRn(rd1);
- else
- gen_op_iwmmxt_avgb0_M0_wRn(rd1);
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_iwmmxt_movl_T0_wCx(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3));
- gen_op_movl_T1_im(7);
- gen_op_andl_T0_T1();
- gen_op_iwmmxt_align_M0_T0_wRn(rd1);
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */
- rd = (insn >> 12) & 0xf;
- wrd = (insn >> 16) & 0xf;
- gen_movl_T0_reg(s, rd);
- gen_op_iwmmxt_movq_M0_wRn(wrd);
- switch ((insn >> 6) & 3) {
- case 0:
- gen_op_movl_T1_im(0xff);
- gen_op_iwmmxt_insr_M0_T0_T1((insn & 7) << 3);
- break;
- case 1:
- gen_op_movl_T1_im(0xffff);
- gen_op_iwmmxt_insr_M0_T0_T1((insn & 3) << 4);
- break;
- case 2:
- gen_op_movl_T1_im(0xffffffff);
- gen_op_iwmmxt_insr_M0_T0_T1((insn & 1) << 5);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */
- rd = (insn >> 12) & 0xf;
- wrd = (insn >> 16) & 0xf;
- if (rd == 15)
- return 1;
- gen_op_iwmmxt_movq_M0_wRn(wrd);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & 8)
- gen_op_iwmmxt_extrsb_T0_M0((insn & 7) << 3);
- else {
- gen_op_iwmmxt_extru_T0_M0((insn & 7) << 3, 0xff);
- }
- break;
- case 1:
- if (insn & 8)
- gen_op_iwmmxt_extrsw_T0_M0((insn & 3) << 4);
- else {
- gen_op_iwmmxt_extru_T0_M0((insn & 3) << 4, 0xffff);
- }
- break;
- case 2:
- gen_op_iwmmxt_extru_T0_M0((insn & 1) << 5, ~0u);
- break;
- case 3:
- return 1;
- }
- gen_movl_reg_T0(s, rd);
- break;
- case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */
- if ((insn & 0x000ff008) != 0x0003f000)
- return 1;
- gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_op_shrl_T1_im(((insn & 7) << 2) + 0);
- break;
- case 1:
- gen_op_shrl_T1_im(((insn & 3) << 3) + 4);
- break;
- case 2:
- gen_op_shrl_T1_im(((insn & 1) << 4) + 12);
- break;
- case 3:
- return 1;
- }
- gen_op_shll_T1_im(28);
- gen_set_nzcv(cpu_T[1]);
- break;
- case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */
- rd = (insn >> 12) & 0xf;
- wrd = (insn >> 16) & 0xf;
- gen_movl_T0_reg(s, rd);
- switch ((insn >> 6) & 3) {
- case 0:
- gen_helper_iwmmxt_bcstb(cpu_M0, cpu_T[0]);
- break;
- case 1:
- gen_helper_iwmmxt_bcstw(cpu_M0, cpu_T[0]);
- break;
- case 2:
- gen_helper_iwmmxt_bcstl(cpu_M0, cpu_T[0]);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */
- if ((insn & 0x000ff00f) != 0x0003f000)
- return 1;
- gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
- switch ((insn >> 22) & 3) {
- case 0:
- for (i = 0; i < 7; i ++) {
- gen_op_shll_T1_im(4);
- gen_op_andl_T0_T1();
- }
- break;
- case 1:
- for (i = 0; i < 3; i ++) {
- gen_op_shll_T1_im(8);
- gen_op_andl_T0_T1();
- }
- break;
- case 2:
- gen_op_shll_T1_im(16);
- gen_op_andl_T0_T1();
- break;
- case 3:
- return 1;
- }
- gen_set_nzcv(cpu_T[0]);
- break;
- case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_helper_iwmmxt_addcb(cpu_M0, cpu_M0);
- break;
- case 1:
- gen_helper_iwmmxt_addcw(cpu_M0, cpu_M0);
- break;
- case 2:
- gen_helper_iwmmxt_addcl(cpu_M0, cpu_M0);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */
- if ((insn & 0x000ff00f) != 0x0003f000)
- return 1;
- gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
- switch ((insn >> 22) & 3) {
- case 0:
- for (i = 0; i < 7; i ++) {
- gen_op_shll_T1_im(4);
- gen_op_orl_T0_T1();
- }
- break;
- case 1:
- for (i = 0; i < 3; i ++) {
- gen_op_shll_T1_im(8);
- gen_op_orl_T0_T1();
- }
- break;
- case 2:
- gen_op_shll_T1_im(16);
- gen_op_orl_T0_T1();
- break;
- case 3:
- return 1;
- }
- gen_set_nzcv(cpu_T[0]);
- break;
- case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */
- rd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- if ((insn & 0xf) != 0)
- return 1;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- gen_helper_iwmmxt_msbb(cpu_T[0], cpu_M0);
- break;
- case 1:
- gen_helper_iwmmxt_msbw(cpu_T[0], cpu_M0);
- break;
- case 2:
- gen_helper_iwmmxt_msbl(cpu_T[0], cpu_M0);
- break;
- case 3:
- return 1;
- }
- gen_movl_reg_T0(s, rd);
- break;
- case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */
- case 0x906: case 0xb06: case 0xd06: case 0xf06:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & (1 << 21))
- gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1);
- else
- gen_op_iwmmxt_cmpgtub_M0_wRn(rd1);
- break;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1);
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1);
- else
- gen_op_iwmmxt_cmpgtul_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */
- case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpacklsb_M0();
- else
- gen_op_iwmmxt_unpacklub_M0();
- break;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpacklsw_M0();
- else
- gen_op_iwmmxt_unpackluw_M0();
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpacklsl_M0();
- else
- gen_op_iwmmxt_unpacklul_M0();
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */
- case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpackhsb_M0();
- else
- gen_op_iwmmxt_unpackhub_M0();
- break;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpackhsw_M0();
- else
- gen_op_iwmmxt_unpackhuw_M0();
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_unpackhsl_M0();
- else
- gen_op_iwmmxt_unpackhul_M0();
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */
- case 0x214: case 0x614: case 0xa14: case 0xe14:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (gen_iwmmxt_shift(insn, 0xff))
- return 1;
- switch ((insn >> 22) & 3) {
- case 0:
- return 1;
- case 1:
- gen_helper_iwmmxt_srlw(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 2:
- gen_helper_iwmmxt_srll(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 3:
- gen_helper_iwmmxt_srlq(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */
- case 0x014: case 0x414: case 0x814: case 0xc14:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (gen_iwmmxt_shift(insn, 0xff))
- return 1;
- switch ((insn >> 22) & 3) {
- case 0:
- return 1;
- case 1:
- gen_helper_iwmmxt_sraw(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 2:
- gen_helper_iwmmxt_sral(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 3:
- gen_helper_iwmmxt_sraq(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */
- case 0x114: case 0x514: case 0x914: case 0xd14:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (gen_iwmmxt_shift(insn, 0xff))
- return 1;
- switch ((insn >> 22) & 3) {
- case 0:
- return 1;
- case 1:
- gen_helper_iwmmxt_sllw(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 2:
- gen_helper_iwmmxt_slll(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 3:
- gen_helper_iwmmxt_sllq(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */
- case 0x314: case 0x714: case 0xb14: case 0xf14:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- return 1;
- case 1:
- if (gen_iwmmxt_shift(insn, 0xf))
- return 1;
- gen_helper_iwmmxt_rorw(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 2:
- if (gen_iwmmxt_shift(insn, 0x1f))
- return 1;
- gen_helper_iwmmxt_rorl(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- case 3:
- if (gen_iwmmxt_shift(insn, 0x3f))
- return 1;
- gen_helper_iwmmxt_rorq(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- break;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */
- case 0x916: case 0xb16: case 0xd16: case 0xf16:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & (1 << 21))
- gen_op_iwmmxt_minsb_M0_wRn(rd1);
- else
- gen_op_iwmmxt_minub_M0_wRn(rd1);
- break;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_minsw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_minuw_M0_wRn(rd1);
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_minsl_M0_wRn(rd1);
- else
- gen_op_iwmmxt_minul_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */
- case 0x816: case 0xa16: case 0xc16: case 0xe16:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 22) & 3) {
- case 0:
- if (insn & (1 << 21))
- gen_op_iwmmxt_maxsb_M0_wRn(rd1);
- else
- gen_op_iwmmxt_maxub_M0_wRn(rd1);
- break;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_maxsw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_maxuw_M0_wRn(rd1);
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_maxsl_M0_wRn(rd1);
- else
- gen_op_iwmmxt_maxul_M0_wRn(rd1);
- break;
- case 3:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */
- case 0x402: case 0x502: case 0x602: case 0x702:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_movl_T0_im((insn >> 20) & 3);
- gen_op_iwmmxt_align_M0_T0_wRn(rd1);
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */
- case 0x41a: case 0x51a: case 0x61a: case 0x71a:
- case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
- case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 20) & 0xf) {
- case 0x0:
- gen_op_iwmmxt_subnb_M0_wRn(rd1);
- break;
- case 0x1:
- gen_op_iwmmxt_subub_M0_wRn(rd1);
- break;
- case 0x3:
- gen_op_iwmmxt_subsb_M0_wRn(rd1);
- break;
- case 0x4:
- gen_op_iwmmxt_subnw_M0_wRn(rd1);
- break;
- case 0x5:
- gen_op_iwmmxt_subuw_M0_wRn(rd1);
- break;
- case 0x7:
- gen_op_iwmmxt_subsw_M0_wRn(rd1);
- break;
- case 0x8:
- gen_op_iwmmxt_subnl_M0_wRn(rd1);
- break;
- case 0x9:
- gen_op_iwmmxt_subul_M0_wRn(rd1);
- break;
- case 0xb:
- gen_op_iwmmxt_subsl_M0_wRn(rd1);
- break;
- default:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */
- case 0x41e: case 0x51e: case 0x61e: case 0x71e:
- case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
- case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- gen_op_movl_T0_im(((insn >> 16) & 0xf0) | (insn & 0x0f));
- gen_helper_iwmmxt_shufh(cpu_M0, cpu_env, cpu_M0, cpu_T[0]);
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */
- case 0x418: case 0x518: case 0x618: case 0x718:
- case 0x818: case 0x918: case 0xa18: case 0xb18:
- case 0xc18: case 0xd18: case 0xe18: case 0xf18:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- switch ((insn >> 20) & 0xf) {
- case 0x0:
- gen_op_iwmmxt_addnb_M0_wRn(rd1);
- break;
- case 0x1:
- gen_op_iwmmxt_addub_M0_wRn(rd1);
- break;
- case 0x3:
- gen_op_iwmmxt_addsb_M0_wRn(rd1);
- break;
- case 0x4:
- gen_op_iwmmxt_addnw_M0_wRn(rd1);
- break;
- case 0x5:
- gen_op_iwmmxt_adduw_M0_wRn(rd1);
- break;
- case 0x7:
- gen_op_iwmmxt_addsw_M0_wRn(rd1);
- break;
- case 0x8:
- gen_op_iwmmxt_addnl_M0_wRn(rd1);
- break;
- case 0x9:
- gen_op_iwmmxt_addul_M0_wRn(rd1);
- break;
- case 0xb:
- gen_op_iwmmxt_addsl_M0_wRn(rd1);
- break;
- default:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */
- case 0x408: case 0x508: case 0x608: case 0x708:
- case 0x808: case 0x908: case 0xa08: case 0xb08:
- case 0xc08: case 0xd08: case 0xe08: case 0xf08:
- wrd = (insn >> 12) & 0xf;
- rd0 = (insn >> 16) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- gen_op_iwmmxt_movq_M0_wRn(rd0);
- if (!(insn & (1 << 20)))
- return 1;
- switch ((insn >> 22) & 3) {
- case 0:
- return 1;
- case 1:
- if (insn & (1 << 21))
- gen_op_iwmmxt_packsw_M0_wRn(rd1);
- else
- gen_op_iwmmxt_packuw_M0_wRn(rd1);
- break;
- case 2:
- if (insn & (1 << 21))
- gen_op_iwmmxt_packsl_M0_wRn(rd1);
- else
- gen_op_iwmmxt_packul_M0_wRn(rd1);
- break;
- case 3:
- if (insn & (1 << 21))
- gen_op_iwmmxt_packsq_M0_wRn(rd1);
- else
- gen_op_iwmmxt_packuq_M0_wRn(rd1);
- break;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- gen_op_iwmmxt_set_cup();
- break;
- case 0x201: case 0x203: case 0x205: case 0x207:
- case 0x209: case 0x20b: case 0x20d: case 0x20f:
- case 0x211: case 0x213: case 0x215: case 0x217:
- case 0x219: case 0x21b: case 0x21d: case 0x21f:
- wrd = (insn >> 5) & 0xf;
- rd0 = (insn >> 12) & 0xf;
- rd1 = (insn >> 0) & 0xf;
- if (rd0 == 0xf || rd1 == 0xf)
- return 1;
- gen_op_iwmmxt_movq_M0_wRn(wrd);
- switch ((insn >> 16) & 0xf) {
- case 0x0: /* TMIA */
- gen_movl_T0_reg(s, rd0);
- gen_movl_T1_reg(s, rd1);
- gen_op_iwmmxt_muladdsl_M0_T0_T1();
- break;
- case 0x8: /* TMIAPH */
- gen_movl_T0_reg(s, rd0);
- gen_movl_T1_reg(s, rd1);
- gen_op_iwmmxt_muladdsw_M0_T0_T1();
- break;
- case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */
- gen_movl_T1_reg(s, rd0);
- if (insn & (1 << 16))
- gen_op_shrl_T1_im(16);
- gen_op_movl_T0_T1();
- gen_movl_T1_reg(s, rd1);
- if (insn & (1 << 17))
- gen_op_shrl_T1_im(16);
- gen_op_iwmmxt_muladdswl_M0_T0_T1();
- break;
- default:
- return 1;
- }
- gen_op_iwmmxt_movq_wRn_M0(wrd);
- gen_op_iwmmxt_set_mup();
- break;
- default:
- return 1;
- }
-
- return 0;
-}
-
-/* Disassemble an XScale DSP instruction. Returns nonzero if an error occured
- (ie. an undefined instruction). */
-static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn)
-{
- int acc, rd0, rd1, rdhi, rdlo;
-
- if ((insn & 0x0ff00f10) == 0x0e200010) {
- /* Multiply with Internal Accumulate Format */
- rd0 = (insn >> 12) & 0xf;
- rd1 = insn & 0xf;
- acc = (insn >> 5) & 7;
-
- if (acc != 0)
- return 1;
-
- switch ((insn >> 16) & 0xf) {
- case 0x0: /* MIA */
- gen_movl_T0_reg(s, rd0);
- gen_movl_T1_reg(s, rd1);
- gen_op_iwmmxt_muladdsl_M0_T0_T1();
- break;
- case 0x8: /* MIAPH */
- gen_movl_T0_reg(s, rd0);
- gen_movl_T1_reg(s, rd1);
- gen_op_iwmmxt_muladdsw_M0_T0_T1();
- break;
- case 0xc: /* MIABB */
- case 0xd: /* MIABT */
- case 0xe: /* MIATB */
- case 0xf: /* MIATT */
- gen_movl_T1_reg(s, rd0);
- if (insn & (1 << 16))
- gen_op_shrl_T1_im(16);
- gen_op_movl_T0_T1();
- gen_movl_T1_reg(s, rd1);
- if (insn & (1 << 17))
- gen_op_shrl_T1_im(16);
- gen_op_iwmmxt_muladdswl_M0_T0_T1();
- break;
- default:
- return 1;
- }
-
- gen_op_iwmmxt_movq_wRn_M0(acc);
- return 0;
- }
-
- if ((insn & 0x0fe00ff8) == 0x0c400000) {
- /* Internal Accumulator Access Format */
- rdhi = (insn >> 16) & 0xf;
- rdlo = (insn >> 12) & 0xf;
- acc = insn & 7;
-
- if (acc != 0)
- return 1;
-
- if (insn & ARM_CP_RW_BIT) { /* MRA */
- gen_iwmmxt_movl_T0_T1_wRn(acc);
- gen_movl_reg_T0(s, rdlo);
- gen_op_movl_T0_im((1 << (40 - 32)) - 1);
- gen_op_andl_T0_T1();
- gen_movl_reg_T0(s, rdhi);
- } else { /* MAR */
- gen_movl_T0_reg(s, rdlo);
- gen_movl_T1_reg(s, rdhi);
- gen_iwmmxt_movl_wRn_T0_T1(acc);
- }
- return 0;
- }
-
- return 1;
-}
-
-/* Disassemble system coprocessor instruction. Return nonzero if
- instruction is not defined. */
-static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn)
-{
- TCGv tmp;
- uint32_t rd = (insn >> 12) & 0xf;
- uint32_t cp = (insn >> 8) & 0xf;
- if (IS_USER(s)) {
- return 1;
- }
-
- if (insn & ARM_CP_RW_BIT) {
- if (!env->cp[cp].cp_read)
- return 1;
- gen_set_pc_im(s->pc);
- tmp = new_tmp();
- gen_helper_get_cp(tmp, cpu_env, tcg_const_i32(insn));
- store_reg(s, rd, tmp);
- } else {
- if (!env->cp[cp].cp_write)
- return 1;
- gen_set_pc_im(s->pc);
- tmp = load_reg(s, rd);
- gen_helper_set_cp(cpu_env, tcg_const_i32(insn), tmp);
- dead_tmp(tmp);
- }
- return 0;
-}
-
-static int cp15_user_ok(uint32_t insn)
-{
- int cpn = (insn >> 16) & 0xf;
- int cpm = insn & 0xf;
- int op = ((insn >> 5) & 7) | ((insn >> 18) & 0x38);
-
- if (cpn == 13 && cpm == 0) {
- /* TLS register. */
- if (op == 2 || (op == 3 && (insn & ARM_CP_RW_BIT)))
- return 1;
- }
- if (cpn == 7) {
- /* ISB, DSB, DMB. */
- if ((cpm == 5 && op == 4)
- || (cpm == 10 && (op == 4 || op == 5)))
- return 1;
- }
- return 0;
-}
-
-/* Disassemble system coprocessor (cp15) instruction. Return nonzero if
- instruction is not defined. */
-static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn)
-{
- uint32_t rd;
- TCGv tmp;
-
- /* M profile cores use memory mapped registers instead of cp15. */
- if (arm_feature(env, ARM_FEATURE_M))
- return 1;
-
- if ((insn & (1 << 25)) == 0) {
- if (insn & (1 << 20)) {
- /* mrrc */
- return 1;
- }
- /* mcrr. Used for block cache operations, so implement as no-op. */
- return 0;
- }
- if ((insn & (1 << 4)) == 0) {
- /* cdp */
- return 1;
- }
- if (IS_USER(s) && !cp15_user_ok(insn)) {
- return 1;
- }
- if ((insn & 0x0fff0fff) == 0x0e070f90
- || (insn & 0x0fff0fff) == 0x0e070f58) {
- /* Wait for interrupt. */
- gen_set_pc_im(s->pc);
- s->is_jmp = DISAS_WFI;
- return 0;
- }
- rd = (insn >> 12) & 0xf;
- if (insn & ARM_CP_RW_BIT) {
- tmp = new_tmp();
- gen_helper_get_cp15(tmp, cpu_env, tcg_const_i32(insn));
- /* If the destination register is r15 then sets condition codes. */
- if (rd != 15)
- store_reg(s, rd, tmp);
- else
- dead_tmp(tmp);
- } else {
- tmp = load_reg(s, rd);
- gen_helper_set_cp15(cpu_env, tcg_const_i32(insn), tmp);
- dead_tmp(tmp);
- /* Normally we would always end the TB here, but Linux
- * arch/arm/mach-pxa/sleep.S expects two instructions following
- * an MMU enable to execute from cache. Imitate this behaviour. */
- if (!arm_feature(env, ARM_FEATURE_XSCALE) ||
- (insn & 0x0fff0fff) != 0x0e010f10)
- gen_lookup_tb(s);
- }
- return 0;
-}
-
-#define VFP_REG_SHR(x, n) (((n) > 0) ? (x) >> (n) : (x) << -(n))
-#define VFP_SREG(insn, bigbit, smallbit) \
- ((VFP_REG_SHR(insn, bigbit - 1) & 0x1e) | (((insn) >> (smallbit)) & 1))
-#define VFP_DREG(reg, insn, bigbit, smallbit) do { \
- if (arm_feature(env, ARM_FEATURE_VFP3)) { \
- reg = (((insn) >> (bigbit)) & 0x0f) \
- | (((insn) >> ((smallbit) - 4)) & 0x10); \
- } else { \
- if (insn & (1 << (smallbit))) \
- return 1; \
- reg = ((insn) >> (bigbit)) & 0x0f; \
- }} while (0)
-
-#define VFP_SREG_D(insn) VFP_SREG(insn, 12, 22)
-#define VFP_DREG_D(reg, insn) VFP_DREG(reg, insn, 12, 22)
-#define VFP_SREG_N(insn) VFP_SREG(insn, 16, 7)
-#define VFP_DREG_N(reg, insn) VFP_DREG(reg, insn, 16, 7)
-#define VFP_SREG_M(insn) VFP_SREG(insn, 0, 5)
-#define VFP_DREG_M(reg, insn) VFP_DREG(reg, insn, 0, 5)
-
-/* Move between integer and VFP cores. */
-static TCGv gen_vfp_mrs(void)
-{
- TCGv tmp = new_tmp();
- tcg_gen_mov_i32(tmp, cpu_F0s);
- return tmp;
-}
-
-static void gen_vfp_msr(TCGv tmp)
-{
- tcg_gen_mov_i32(cpu_F0s, tmp);
- dead_tmp(tmp);
-}
-
-static inline int
-vfp_enabled(CPUState * env)
-{
- return ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) != 0);
-}
-
-static void gen_neon_dup_u8(TCGv var, int shift)
-{
- TCGv tmp = new_tmp();
- if (shift)
- tcg_gen_shri_i32(var, var, shift);
- tcg_gen_ext8u_i32(var, var);
- tcg_gen_shli_i32(tmp, var, 8);
- tcg_gen_or_i32(var, var, tmp);
- tcg_gen_shli_i32(tmp, var, 16);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-static void gen_neon_dup_low16(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_ext16u_i32(var, var);
- tcg_gen_shli_i32(tmp, var, 16);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-static void gen_neon_dup_high16(TCGv var)
-{
- TCGv tmp = new_tmp();
- tcg_gen_andi_i32(var, var, 0xffff0000);
- tcg_gen_shri_i32(tmp, var, 16);
- tcg_gen_or_i32(var, var, tmp);
- dead_tmp(tmp);
-}
-
-/* Disassemble a VFP instruction. Returns nonzero if an error occured
- (ie. an undefined instruction). */
-static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn)
-{
- uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask;
- int dp, veclen;
- TCGv tmp;
- TCGv tmp2;
-
- if (!arm_feature(env, ARM_FEATURE_VFP))
- return 1;
-
- if (!vfp_enabled(env)) {
- /* VFP disabled. Only allow fmxr/fmrx to/from some control regs. */
- if ((insn & 0x0fe00fff) != 0x0ee00a10)
- return 1;
- rn = (insn >> 16) & 0xf;
- if (rn != ARM_VFP_FPSID && rn != ARM_VFP_FPEXC
- && rn != ARM_VFP_MVFR1 && rn != ARM_VFP_MVFR0)
- return 1;
- }
- dp = ((insn & 0xf00) == 0xb00);
- switch ((insn >> 24) & 0xf) {
- case 0xe:
- if (insn & (1 << 4)) {
- /* single register transfer */
- rd = (insn >> 12) & 0xf;
- if (dp) {
- int size;
- int pass;
-
- VFP_DREG_N(rn, insn);
- if (insn & 0xf)
- return 1;
- if (insn & 0x00c00060
- && !arm_feature(env, ARM_FEATURE_NEON))
- return 1;
-
- pass = (insn >> 21) & 1;
- if (insn & (1 << 22)) {
- size = 0;
- offset = ((insn >> 5) & 3) * 8;
- } else if (insn & (1 << 5)) {
- size = 1;
- offset = (insn & (1 << 6)) ? 16 : 0;
- } else {
- size = 2;
- offset = 0;
- }
- if (insn & ARM_CP_RW_BIT) {
- /* vfp->arm */
- tmp = neon_load_reg(rn, pass);
- switch (size) {
- case 0:
- if (offset)
- tcg_gen_shri_i32(tmp, tmp, offset);
- if (insn & (1 << 23))
- gen_uxtb(tmp);
- else
- gen_sxtb(tmp);
- break;
- case 1:
- if (insn & (1 << 23)) {
- if (offset) {
- tcg_gen_shri_i32(tmp, tmp, 16);
- } else {
- gen_uxth(tmp);
- }
- } else {
- if (offset) {
- tcg_gen_sari_i32(tmp, tmp, 16);
- } else {
- gen_sxth(tmp);
- }
- }
- break;
- case 2:
- break;
- }
- store_reg(s, rd, tmp);
- } else {
- /* arm->vfp */
- tmp = load_reg(s, rd);
- if (insn & (1 << 23)) {
- /* VDUP */
- if (size == 0) {
- gen_neon_dup_u8(tmp, 0);
- } else if (size == 1) {
- gen_neon_dup_low16(tmp);
- }
- tmp2 = new_tmp();
- tcg_gen_mov_i32(tmp2, tmp);
- neon_store_reg(rn, 0, tmp2);
- neon_store_reg(rn, 0, tmp);
- } else {
- /* VMOV */
- switch (size) {
- case 0:
- tmp2 = neon_load_reg(rn, pass);
- gen_bfi(tmp, tmp2, tmp, offset, 0xff);
- dead_tmp(tmp2);
- break;
- case 1:
- tmp2 = neon_load_reg(rn, pass);
- gen_bfi(tmp, tmp2, tmp, offset, 0xffff);
- dead_tmp(tmp2);
- break;
- case 2:
- break;
- }
- neon_store_reg(rn, pass, tmp);
- }
- }
- } else { /* !dp */
- if ((insn & 0x6f) != 0x00)
- return 1;
- rn = VFP_SREG_N(insn);
- if (insn & ARM_CP_RW_BIT) {
- /* vfp->arm */
- if (insn & (1 << 21)) {
- /* system register */
- rn >>= 1;
-
- switch (rn) {
- case ARM_VFP_FPSID:
- /* VFP2 allows access to FSID from userspace.
- VFP3 restricts all id registers to privileged
- accesses. */
- if (IS_USER(s)
- && arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- tmp = load_cpu_field(vfp.xregs[rn]);
- break;
- case ARM_VFP_FPEXC:
- if (IS_USER(s))
- return 1;
- tmp = load_cpu_field(vfp.xregs[rn]);
- break;
- case ARM_VFP_FPINST:
- case ARM_VFP_FPINST2:
- /* Not present in VFP3. */
- if (IS_USER(s)
- || arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- tmp = load_cpu_field(vfp.xregs[rn]);
- break;
- case ARM_VFP_FPSCR:
- if (rd == 15) {
- tmp = load_cpu_field(vfp.xregs[ARM_VFP_FPSCR]);
- tcg_gen_andi_i32(tmp, tmp, 0xf0000000);
- } else {
- tmp = new_tmp();
- gen_helper_vfp_get_fpscr(tmp, cpu_env);
- }
- break;
- case ARM_VFP_MVFR0:
- case ARM_VFP_MVFR1:
- if (IS_USER(s)
- || !arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- tmp = load_cpu_field(vfp.xregs[rn]);
- break;
- default:
- return 1;
- }
- } else {
- gen_mov_F0_vreg(0, rn);
- tmp = gen_vfp_mrs();
- }
- if (rd == 15) {
- /* Set the 4 flag bits in the CPSR. */
- gen_set_nzcv(tmp);
- dead_tmp(tmp);
- } else {
- store_reg(s, rd, tmp);
- }
- } else {
- /* arm->vfp */
- tmp = load_reg(s, rd);
- if (insn & (1 << 21)) {
- rn >>= 1;
- /* system register */
- switch (rn) {
- case ARM_VFP_FPSID:
- case ARM_VFP_MVFR0:
- case ARM_VFP_MVFR1:
- /* Writes are ignored. */
- break;
- case ARM_VFP_FPSCR:
- gen_helper_vfp_set_fpscr(cpu_env, tmp);
- dead_tmp(tmp);
- gen_lookup_tb(s);
- break;
- case ARM_VFP_FPEXC:
- if (IS_USER(s))
- return 1;
- store_cpu_field(tmp, vfp.xregs[rn]);
- gen_lookup_tb(s);
- break;
- case ARM_VFP_FPINST:
- case ARM_VFP_FPINST2:
- store_cpu_field(tmp, vfp.xregs[rn]);
- break;
- default:
- return 1;
- }
- } else {
- gen_vfp_msr(tmp);
- gen_mov_vreg_F0(0, rn);
- }
- }
- }
- } else {
- /* data processing */
- /* The opcode is in bits 23, 21, 20 and 6. */
- op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1);
- if (dp) {
- if (op == 15) {
- /* rn is opcode */
- rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
- } else {
- /* rn is register number */
- VFP_DREG_N(rn, insn);
- }
-
- if (op == 15 && (rn == 15 || rn > 17)) {
- /* Integer or single precision destination. */
- rd = VFP_SREG_D(insn);
- } else {
- VFP_DREG_D(rd, insn);
- }
-
- if (op == 15 && (rn == 16 || rn == 17)) {
- /* Integer source. */
- rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
- } else {
- VFP_DREG_M(rm, insn);
- }
- } else {
- rn = VFP_SREG_N(insn);
- if (op == 15 && rn == 15) {
- /* Double precision destination. */
- VFP_DREG_D(rd, insn);
- } else {
- rd = VFP_SREG_D(insn);
- }
- rm = VFP_SREG_M(insn);
- }
-
- veclen = env->vfp.vec_len;
- if (op == 15 && rn > 3)
- veclen = 0;
-
- /* Shut up compiler warnings. */
- delta_m = 0;
- delta_d = 0;
- bank_mask = 0;
-
- if (veclen > 0) {
- if (dp)
- bank_mask = 0xc;
- else
- bank_mask = 0x18;
-
- /* Figure out what type of vector operation this is. */
- if ((rd & bank_mask) == 0) {
- /* scalar */
- veclen = 0;
- } else {
- if (dp)
- delta_d = (env->vfp.vec_stride >> 1) + 1;
- else
- delta_d = env->vfp.vec_stride + 1;
-
- if ((rm & bank_mask) == 0) {
- /* mixed scalar/vector */
- delta_m = 0;
- } else {
- /* vector */
- delta_m = delta_d;
- }
- }
- }
-
- /* Load the initial operands. */
- if (op == 15) {
- switch (rn) {
- case 16:
- case 17:
- /* Integer source */
- gen_mov_F0_vreg(0, rm);
- break;
- case 8:
- case 9:
- /* Compare */
- gen_mov_F0_vreg(dp, rd);
- gen_mov_F1_vreg(dp, rm);
- break;
- case 10:
- case 11:
- /* Compare with zero */
- gen_mov_F0_vreg(dp, rd);
- gen_vfp_F1_ld0(dp);
- break;
- case 20:
- case 21:
- case 22:
- case 23:
- /* Source and destination the same. */
- gen_mov_F0_vreg(dp, rd);
- break;
- default:
- /* One source operand. */
- gen_mov_F0_vreg(dp, rm);
- break;
- }
- } else {
- /* Two source operands. */
- gen_mov_F0_vreg(dp, rn);
- gen_mov_F1_vreg(dp, rm);
- }
-
- for (;;) {
- /* Perform the calculation. */
- switch (op) {
- case 0: /* mac: fd + (fn * fm) */
- gen_vfp_mul(dp);
- gen_mov_F1_vreg(dp, rd);
- gen_vfp_add(dp);
- break;
- case 1: /* nmac: fd - (fn * fm) */
- gen_vfp_mul(dp);
- gen_vfp_neg(dp);
- gen_mov_F1_vreg(dp, rd);
- gen_vfp_add(dp);
- break;
- case 2: /* msc: -fd + (fn * fm) */
- gen_vfp_mul(dp);
- gen_mov_F1_vreg(dp, rd);
- gen_vfp_sub(dp);
- break;
- case 3: /* nmsc: -fd - (fn * fm) */
- gen_vfp_mul(dp);
- gen_mov_F1_vreg(dp, rd);
- gen_vfp_add(dp);
- gen_vfp_neg(dp);
- break;
- case 4: /* mul: fn * fm */
- gen_vfp_mul(dp);
- break;
- case 5: /* nmul: -(fn * fm) */
- gen_vfp_mul(dp);
- gen_vfp_neg(dp);
- break;
- case 6: /* add: fn + fm */
- gen_vfp_add(dp);
- break;
- case 7: /* sub: fn - fm */
- gen_vfp_sub(dp);
- break;
- case 8: /* div: fn / fm */
- gen_vfp_div(dp);
- break;
- case 14: /* fconst */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
-
- n = (insn << 12) & 0x80000000;
- i = ((insn >> 12) & 0x70) | (insn & 0xf);
- if (dp) {
- if (i & 0x40)
- i |= 0x3f80;
- else
- i |= 0x4000;
- n |= i << 16;
- tcg_gen_movi_i64(cpu_F0d, ((uint64_t)n) << 32);
- } else {
- if (i & 0x40)
- i |= 0x780;
- else
- i |= 0x800;
- n |= i << 19;
- tcg_gen_movi_i32(cpu_F0s, n);
- }
- break;
- case 15: /* extension space */
- switch (rn) {
- case 0: /* cpy */
- /* no-op */
- break;
- case 1: /* abs */
- gen_vfp_abs(dp);
- break;
- case 2: /* neg */
- gen_vfp_neg(dp);
- break;
- case 3: /* sqrt */
- gen_vfp_sqrt(dp);
- break;
- case 8: /* cmp */
- gen_vfp_cmp(dp);
- break;
- case 9: /* cmpe */
- gen_vfp_cmpe(dp);
- break;
- case 10: /* cmpz */
- gen_vfp_cmp(dp);
- break;
- case 11: /* cmpez */
- gen_vfp_F1_ld0(dp);
- gen_vfp_cmpe(dp);
- break;
- case 15: /* single<->double conversion */
- if (dp)
- gen_helper_vfp_fcvtsd(cpu_F0s, cpu_F0d, cpu_env);
- else
- gen_helper_vfp_fcvtds(cpu_F0d, cpu_F0s, cpu_env);
- break;
- case 16: /* fuito */
- gen_vfp_uito(dp);
- break;
- case 17: /* fsito */
- gen_vfp_sito(dp);
- break;
- case 20: /* fshto */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_shto(dp, rm);
- break;
- case 21: /* fslto */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_slto(dp, rm);
- break;
- case 22: /* fuhto */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_uhto(dp, rm);
- break;
- case 23: /* fulto */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_ulto(dp, rm);
- break;
- case 24: /* ftoui */
- gen_vfp_toui(dp);
- break;
- case 25: /* ftouiz */
- gen_vfp_touiz(dp);
- break;
- case 26: /* ftosi */
- gen_vfp_tosi(dp);
- break;
- case 27: /* ftosiz */
- gen_vfp_tosiz(dp);
- break;
- case 28: /* ftosh */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_tosh(dp, rm);
- break;
- case 29: /* ftosl */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_tosl(dp, rm);
- break;
- case 30: /* ftouh */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_touh(dp, rm);
- break;
- case 31: /* ftoul */
- if (!arm_feature(env, ARM_FEATURE_VFP3))
- return 1;
- gen_vfp_toul(dp, rm);
- break;
- default: /* undefined */
- printf ("rn:%d\n", rn);
- return 1;
- }
- break;
- default: /* undefined */
- printf ("op:%d\n", op);
- return 1;
- }
-
- /* Write back the result. */
- if (op == 15 && (rn >= 8 && rn <= 11))
- ; /* Comparison, do nothing. */
- else if (op == 15 && rn > 17)
- /* Integer result. */
- gen_mov_vreg_F0(0, rd);
- else if (op == 15 && rn == 15)
- /* conversion */
- gen_mov_vreg_F0(!dp, rd);
- else
- gen_mov_vreg_F0(dp, rd);
-
- /* break out of the loop if we have finished */
- if (veclen == 0)
- break;
-
- if (op == 15 && delta_m == 0) {
- /* single source one-many */
- while (veclen--) {
- rd = ((rd + delta_d) & (bank_mask - 1))
- | (rd & bank_mask);
- gen_mov_vreg_F0(dp, rd);
- }
- break;
- }
- /* Setup the next operands. */
- veclen--;
- rd = ((rd + delta_d) & (bank_mask - 1))
- | (rd & bank_mask);
-
- if (op == 15) {
- /* One source operand. */
- rm = ((rm + delta_m) & (bank_mask - 1))
- | (rm & bank_mask);
- gen_mov_F0_vreg(dp, rm);
- } else {
- /* Two source operands. */
- rn = ((rn + delta_d) & (bank_mask - 1))
- | (rn & bank_mask);
- gen_mov_F0_vreg(dp, rn);
- if (delta_m) {
- rm = ((rm + delta_m) & (bank_mask - 1))
- | (rm & bank_mask);
- gen_mov_F1_vreg(dp, rm);
- }
- }
- }
- }
- break;
- case 0xc:
- case 0xd:
- if (dp && (insn & 0x03e00000) == 0x00400000) {
- /* two-register transfer */
- rn = (insn >> 16) & 0xf;
- rd = (insn >> 12) & 0xf;
- if (dp) {
- VFP_DREG_M(rm, insn);
- } else {
- rm = VFP_SREG_M(insn);
- }
-
- if (insn & ARM_CP_RW_BIT) {
- /* vfp->arm */
- if (dp) {
- gen_mov_F0_vreg(0, rm * 2);
- tmp = gen_vfp_mrs();
- store_reg(s, rd, tmp);
- gen_mov_F0_vreg(0, rm * 2 + 1);
- tmp = gen_vfp_mrs();
- store_reg(s, rn, tmp);
- } else {
- gen_mov_F0_vreg(0, rm);
- tmp = gen_vfp_mrs();
- store_reg(s, rn, tmp);
- gen_mov_F0_vreg(0, rm + 1);
- tmp = gen_vfp_mrs();
- store_reg(s, rd, tmp);
- }
- } else {
- /* arm->vfp */
- if (dp) {
- tmp = load_reg(s, rd);
- gen_vfp_msr(tmp);
- gen_mov_vreg_F0(0, rm * 2);
- tmp = load_reg(s, rn);
- gen_vfp_msr(tmp);
- gen_mov_vreg_F0(0, rm * 2 + 1);
- } else {
- tmp = load_reg(s, rn);
- gen_vfp_msr(tmp);
- gen_mov_vreg_F0(0, rm);
- tmp = load_reg(s, rd);
- gen_vfp_msr(tmp);
- gen_mov_vreg_F0(0, rm + 1);
- }
- }
- } else {
- /* Load/store */
- rn = (insn >> 16) & 0xf;
- if (dp)
- VFP_DREG_D(rd, insn);
- else
- rd = VFP_SREG_D(insn);
- if (s->thumb && rn == 15) {
- gen_op_movl_T1_im(s->pc & ~2);
- } else {
- gen_movl_T1_reg(s, rn);
- }
- if ((insn & 0x01200000) == 0x01000000) {
- /* Single load/store */
- offset = (insn & 0xff) << 2;
- if ((insn & (1 << 23)) == 0)
- offset = -offset;
- gen_op_addl_T1_im(offset);
- if (insn & (1 << 20)) {
- gen_vfp_ld(s, dp);
- gen_mov_vreg_F0(dp, rd);
- } else {
- gen_mov_F0_vreg(dp, rd);
- gen_vfp_st(s, dp);
- }
- } else {
- /* load/store multiple */
- if (dp)
- n = (insn >> 1) & 0x7f;
- else
- n = insn & 0xff;
-
- if (insn & (1 << 24)) /* pre-decrement */
- gen_op_addl_T1_im(-((insn & 0xff) << 2));
-
- if (dp)
- offset = 8;
- else
- offset = 4;
- for (i = 0; i < n; i++) {
- if (insn & ARM_CP_RW_BIT) {
- /* load */
- gen_vfp_ld(s, dp);
- gen_mov_vreg_F0(dp, rd + i);
- } else {
- /* store */
- gen_mov_F0_vreg(dp, rd + i);
- gen_vfp_st(s, dp);
- }
- gen_op_addl_T1_im(offset);
- }
- if (insn & (1 << 21)) {
- /* writeback */
- if (insn & (1 << 24))
- offset = -offset * n;
- else if (dp && (insn & 1))
- offset = 4;
- else
- offset = 0;
-
- if (offset != 0)
- gen_op_addl_T1_im(offset);
- gen_movl_reg_T1(s, rn);
- }
- }
- }
- break;
- default:
- /* Should never happen. */
- return 1;
- }
- return 0;
-}
-
-static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest)
-{
- TranslationBlock *tb;
-
- tb = s->tb;
- if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
- tcg_gen_goto_tb(n);
- gen_set_pc_im(dest);
- tcg_gen_exit_tb((long)tb + n);
- } else {
- gen_set_pc_im(dest);
- tcg_gen_exit_tb(0);
- }
-}
-
-static inline void gen_jmp (DisasContext *s, uint32_t dest)
-{
- if (unlikely(s->singlestep_enabled)) {
- /* An indirect jump so that we still trigger the debug exception. */
- if (s->thumb)
- dest |= 1;
- gen_bx_im(s, dest);
- } else {
- gen_goto_tb(s, 0, dest);
- s->is_jmp = DISAS_TB_JUMP;
- }
-}
-
-static inline void gen_mulxy(TCGv t0, TCGv t1, int x, int y)
-{
- if (x)
- tcg_gen_sari_i32(t0, t0, 16);
- else
- gen_sxth(t0);
- if (y)
- tcg_gen_sari_i32(t1, t1, 16);
- else
- gen_sxth(t1);
- tcg_gen_mul_i32(t0, t0, t1);
-}
-
-/* Return the mask of PSR bits set by a MSR instruction. */
-static uint32_t msr_mask(CPUState *env, DisasContext *s, int flags, int spsr) {
- uint32_t mask;
-
- mask = 0;
- if (flags & (1 << 0))
- mask |= 0xff;
- if (flags & (1 << 1))
- mask |= 0xff00;
- if (flags & (1 << 2))
- mask |= 0xff0000;
- if (flags & (1 << 3))
- mask |= 0xff000000;
-
- /* Mask out undefined bits. */
- mask &= ~CPSR_RESERVED;
- if (!arm_feature(env, ARM_FEATURE_V6))
- mask &= ~(CPSR_E | CPSR_GE);
- if (!arm_feature(env, ARM_FEATURE_THUMB2))
- mask &= ~CPSR_IT;
- /* Mask out execution state bits. */
- if (!spsr)
- mask &= ~CPSR_EXEC;
- /* Mask out privileged bits. */
- if (IS_USER(s))
- mask &= CPSR_USER;
- return mask;
-}
-
-/* Returns nonzero if access to the PSR is not permitted. */
-static int gen_set_psr_T0(DisasContext *s, uint32_t mask, int spsr)
-{
- TCGv tmp;
- if (spsr) {
- /* ??? This is also undefined in system mode. */
- if (IS_USER(s))
- return 1;
-
- tmp = load_cpu_field(spsr);
- tcg_gen_andi_i32(tmp, tmp, ~mask);
- tcg_gen_andi_i32(cpu_T[0], cpu_T[0], mask);
- tcg_gen_or_i32(tmp, tmp, cpu_T[0]);
- store_cpu_field(tmp, spsr);
- } else {
- gen_set_cpsr(cpu_T[0], mask);
- }
- gen_lookup_tb(s);
- return 0;
-}
-
-/* Generate an old-style exception return. */
-static void gen_exception_return(DisasContext *s)
-{
- TCGv tmp;
- gen_movl_reg_T0(s, 15);
- tmp = load_cpu_field(spsr);
- gen_set_cpsr(tmp, 0xffffffff);
- dead_tmp(tmp);
- s->is_jmp = DISAS_UPDATE;
-}
-
-/* Generate a v6 exception return. Marks both values as dead. */
-static void gen_rfe(DisasContext *s, TCGv pc, TCGv cpsr)
-{
- gen_set_cpsr(cpsr, 0xffffffff);
- dead_tmp(cpsr);
- store_reg(s, 15, pc);
- s->is_jmp = DISAS_UPDATE;
-}
-
-static inline void
-gen_set_condexec (DisasContext *s)
-{
- if (s->condexec_mask) {
- uint32_t val = (s->condexec_cond << 4) | (s->condexec_mask >> 1);
- TCGv tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- store_cpu_field(tmp, condexec_bits);
- }
-}
-
-static void gen_nop_hint(DisasContext *s, int val)
-{
- switch (val) {
- case 3: /* wfi */
- gen_set_pc_im(s->pc);
- s->is_jmp = DISAS_WFI;
- break;
- case 2: /* wfe */
- case 4: /* sev */
- /* TODO: Implement SEV and WFE. May help SMP performance. */
- default: /* nop */
- break;
- }
-}
-
-/* These macros help make the code more readable when migrating from the
- old dyngen helpers. They should probably be removed when
- T0/T1 are removed. */
-#define CPU_T001 cpu_T[0], cpu_T[0], cpu_T[1]
-#define CPU_T0E01 cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]
-
-#define CPU_V001 cpu_V0, cpu_V0, cpu_V1
-
-static inline int gen_neon_add(int size)
-{
- switch (size) {
- case 0: gen_helper_neon_add_u8(CPU_T001); break;
- case 1: gen_helper_neon_add_u16(CPU_T001); break;
- case 2: gen_op_addl_T0_T1(); break;
- default: return 1;
- }
- return 0;
-}
-
-static inline void gen_neon_rsb(int size)
-{
- switch (size) {
- case 0: gen_helper_neon_sub_u8(cpu_T[0], cpu_T[1], cpu_T[0]); break;
- case 1: gen_helper_neon_sub_u16(cpu_T[0], cpu_T[1], cpu_T[0]); break;
- case 2: gen_op_rsbl_T0_T1(); break;
- default: return;
- }
-}
-
-/* 32-bit pairwise ops end up the same as the elementwise versions. */
-#define gen_helper_neon_pmax_s32 gen_helper_neon_max_s32
-#define gen_helper_neon_pmax_u32 gen_helper_neon_max_u32
-#define gen_helper_neon_pmin_s32 gen_helper_neon_min_s32
-#define gen_helper_neon_pmin_u32 gen_helper_neon_min_u32
-
-/* FIXME: This is wrong. They set the wrong overflow bit. */
-#define gen_helper_neon_qadd_s32(a, e, b, c) gen_helper_add_saturate(a, b, c)
-#define gen_helper_neon_qadd_u32(a, e, b, c) gen_helper_add_usaturate(a, b, c)
-#define gen_helper_neon_qsub_s32(a, e, b, c) gen_helper_sub_saturate(a, b, c)
-#define gen_helper_neon_qsub_u32(a, e, b, c) gen_helper_sub_usaturate(a, b, c)
-
-#define GEN_NEON_INTEGER_OP_ENV(name) do { \
- switch ((size << 1) | u) { \
- case 0: \
- gen_helper_neon_##name##_s8(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- case 1: \
- gen_helper_neon_##name##_u8(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- case 2: \
- gen_helper_neon_##name##_s16(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- case 3: \
- gen_helper_neon_##name##_u16(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- case 4: \
- gen_helper_neon_##name##_s32(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- case 5: \
- gen_helper_neon_##name##_u32(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]); \
- break; \
- default: return 1; \
- }} while (0)
-
-#define GEN_NEON_INTEGER_OP(name) do { \
- switch ((size << 1) | u) { \
- case 0: \
- gen_helper_neon_##name##_s8(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- case 1: \
- gen_helper_neon_##name##_u8(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- case 2: \
- gen_helper_neon_##name##_s16(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- case 3: \
- gen_helper_neon_##name##_u16(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- case 4: \
- gen_helper_neon_##name##_s32(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- case 5: \
- gen_helper_neon_##name##_u32(cpu_T[0], cpu_T[0], cpu_T[1]); \
- break; \
- default: return 1; \
- }} while (0)
-
-static inline void
-gen_neon_movl_scratch_T0(int scratch)
-{
- uint32_t offset;
-
- offset = offsetof(CPUARMState, vfp.scratch[scratch]);
- tcg_gen_st_i32(cpu_T[0], cpu_env, offset);
-}
-
-static inline void
-gen_neon_movl_scratch_T1(int scratch)
-{
- uint32_t offset;
-
- offset = offsetof(CPUARMState, vfp.scratch[scratch]);
- tcg_gen_st_i32(cpu_T[1], cpu_env, offset);
-}
-
-static inline void
-gen_neon_movl_T0_scratch(int scratch)
-{
- uint32_t offset;
-
- offset = offsetof(CPUARMState, vfp.scratch[scratch]);
- tcg_gen_ld_i32(cpu_T[0], cpu_env, offset);
-}
-
-static inline void
-gen_neon_movl_T1_scratch(int scratch)
-{
- uint32_t offset;
-
- offset = offsetof(CPUARMState, vfp.scratch[scratch]);
- tcg_gen_ld_i32(cpu_T[1], cpu_env, offset);
-}
-
-static inline void gen_neon_get_scalar(int size, int reg)
-{
- if (size == 1) {
- NEON_GET_REG(T0, reg >> 1, reg & 1);
- } else {
- NEON_GET_REG(T0, reg >> 2, (reg >> 1) & 1);
- if (reg & 1)
- gen_neon_dup_low16(cpu_T[0]);
- else
- gen_neon_dup_high16(cpu_T[0]);
- }
-}
-
-static void gen_neon_unzip(int reg, int q, int tmp, int size)
-{
- int n;
-
- for (n = 0; n < q + 1; n += 2) {
- NEON_GET_REG(T0, reg, n);
- NEON_GET_REG(T0, reg, n + n);
- switch (size) {
- case 0: gen_helper_neon_unzip_u8(); break;
- case 1: gen_helper_neon_zip_u16(); break; /* zip and unzip are the same. */
- case 2: /* no-op */; break;
- default: abort();
- }
- gen_neon_movl_scratch_T0(tmp + n);
- gen_neon_movl_scratch_T1(tmp + n + 1);
- }
-}
-
-static struct {
- int nregs;
- int interleave;
- int spacing;
-} neon_ls_element_type[11] = {
- {4, 4, 1},
- {4, 4, 2},
- {4, 1, 1},
- {4, 2, 1},
- {3, 3, 1},
- {3, 3, 2},
- {3, 1, 1},
- {1, 1, 1},
- {2, 2, 1},
- {2, 2, 2},
- {2, 1, 1}
-};
-
-/* Translate a NEON load/store element instruction. Return nonzero if the
- instruction is invalid. */
-static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn)
-{
- int rd, rn, rm;
- int op;
- int nregs;
- int interleave;
- int stride;
- int size;
- int reg;
- int pass;
- int load;
- int shift;
- int n;
- TCGv tmp;
- TCGv tmp2;
-
- if (!vfp_enabled(env))
- return 1;
- VFP_DREG_D(rd, insn);
- rn = (insn >> 16) & 0xf;
- rm = insn & 0xf;
- load = (insn & (1 << 21)) != 0;
- if ((insn & (1 << 23)) == 0) {
- /* Load store all elements. */
- op = (insn >> 8) & 0xf;
- size = (insn >> 6) & 3;
- if (op > 10 || size == 3)
- return 1;
- nregs = neon_ls_element_type[op].nregs;
- interleave = neon_ls_element_type[op].interleave;
- gen_movl_T1_reg(s, rn);
- stride = (1 << size) * interleave;
- for (reg = 0; reg < nregs; reg++) {
- if (interleave > 2 || (interleave == 2 && nregs == 2)) {
- gen_movl_T1_reg(s, rn);
- gen_op_addl_T1_im((1 << size) * reg);
- } else if (interleave == 2 && nregs == 4 && reg == 2) {
- gen_movl_T1_reg(s, rn);
- gen_op_addl_T1_im(1 << size);
- }
- for (pass = 0; pass < 2; pass++) {
- if (size == 2) {
- if (load) {
- tmp = gen_ld32(cpu_T[1], IS_USER(s));
- neon_store_reg(rd, pass, tmp);
- } else {
- tmp = neon_load_reg(rd, pass);
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- }
- gen_op_addl_T1_im(stride);
- } else if (size == 1) {
- if (load) {
- tmp = gen_ld16u(cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- tmp2 = gen_ld16u(cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- gen_bfi(tmp, tmp, tmp2, 16, 0xffff);
- dead_tmp(tmp2);
- neon_store_reg(rd, pass, tmp);
- } else {
- tmp = neon_load_reg(rd, pass);
- tmp2 = new_tmp();
- tcg_gen_shri_i32(tmp2, tmp, 16);
- gen_st16(tmp, cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- gen_st16(tmp2, cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- }
- } else /* size == 0 */ {
- if (load) {
- TCGV_UNUSED(tmp2);
- for (n = 0; n < 4; n++) {
- tmp = gen_ld8u(cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- if (n == 0) {
- tmp2 = tmp;
- } else {
- gen_bfi(tmp2, tmp2, tmp, n * 8, 0xff);
- dead_tmp(tmp);
- }
- }
- neon_store_reg(rd, pass, tmp2);
- } else {
- tmp2 = neon_load_reg(rd, pass);
- for (n = 0; n < 4; n++) {
- tmp = new_tmp();
- if (n == 0) {
- tcg_gen_mov_i32(tmp, tmp2);
- } else {
- tcg_gen_shri_i32(tmp, tmp2, n * 8);
- }
- gen_st8(tmp, cpu_T[1], IS_USER(s));
- gen_op_addl_T1_im(stride);
- }
- dead_tmp(tmp2);
- }
- }
- }
- rd += neon_ls_element_type[op].spacing;
- }
- stride = nregs * 8;
- } else {
- size = (insn >> 10) & 3;
- if (size == 3) {
- /* Load single element to all lanes. */
- if (!load)
- return 1;
- size = (insn >> 6) & 3;
- nregs = ((insn >> 8) & 3) + 1;
- stride = (insn & (1 << 5)) ? 2 : 1;
- gen_movl_T1_reg(s, rn);
- for (reg = 0; reg < nregs; reg++) {
- switch (size) {
- case 0:
- tmp = gen_ld8u(cpu_T[1], IS_USER(s));
- gen_neon_dup_u8(tmp, 0);
- break;
- case 1:
- tmp = gen_ld16u(cpu_T[1], IS_USER(s));
- gen_neon_dup_low16(tmp);
- break;
- case 2:
- tmp = gen_ld32(cpu_T[0], IS_USER(s));
- break;
- case 3:
- return 1;
- default: /* Avoid compiler warnings. */
- abort();
- }
- gen_op_addl_T1_im(1 << size);
- tmp2 = new_tmp();
- tcg_gen_mov_i32(tmp2, tmp);
- neon_store_reg(rd, 0, tmp2);
- neon_store_reg(rd, 0, tmp);
- rd += stride;
- }
- stride = (1 << size) * nregs;
- } else {
- /* Single element. */
- pass = (insn >> 7) & 1;
- switch (size) {
- case 0:
- shift = ((insn >> 5) & 3) * 8;
- stride = 1;
- break;
- case 1:
- shift = ((insn >> 6) & 1) * 16;
- stride = (insn & (1 << 5)) ? 2 : 1;
- break;
- case 2:
- shift = 0;
- stride = (insn & (1 << 6)) ? 2 : 1;
- break;
- default:
- abort();
- }
- nregs = ((insn >> 8) & 3) + 1;
- gen_movl_T1_reg(s, rn);
- for (reg = 0; reg < nregs; reg++) {
- if (load) {
- switch (size) {
- case 0:
- tmp = gen_ld8u(cpu_T[1], IS_USER(s));
- break;
- case 1:
- tmp = gen_ld16u(cpu_T[1], IS_USER(s));
- break;
- case 2:
- tmp = gen_ld32(cpu_T[1], IS_USER(s));
- break;
- default: /* Avoid compiler warnings. */
- abort();
- }
- if (size != 2) {
- tmp2 = neon_load_reg(rd, pass);
- gen_bfi(tmp, tmp2, tmp, shift, size ? 0xffff : 0xff);
- dead_tmp(tmp2);
- }
- neon_store_reg(rd, pass, tmp);
- } else { /* Store */
- tmp = neon_load_reg(rd, pass);
- if (shift)
- tcg_gen_shri_i32(tmp, tmp, shift);
- switch (size) {
- case 0:
- gen_st8(tmp, cpu_T[1], IS_USER(s));
- break;
- case 1:
- gen_st16(tmp, cpu_T[1], IS_USER(s));
- break;
- case 2:
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- break;
- }
- }
- rd += stride;
- gen_op_addl_T1_im(1 << size);
- }
- stride = nregs * (1 << size);
- }
- }
- if (rm != 15) {
- TCGv base;
-
- base = load_reg(s, rn);
- if (rm == 13) {
- tcg_gen_addi_i32(base, base, stride);
- } else {
- TCGv index;
- index = load_reg(s, rm);
- tcg_gen_add_i32(base, base, index);
- dead_tmp(index);
- }
- store_reg(s, rn, base);
- }
- return 0;
-}
-
-/* Bitwise select. dest = c ? t : f. Clobbers T and F. */
-static void gen_neon_bsl(TCGv dest, TCGv t, TCGv f, TCGv c)
-{
- tcg_gen_and_i32(t, t, c);
- tcg_gen_bic_i32(f, f, c);
- tcg_gen_or_i32(dest, t, f);
-}
-
-static inline void gen_neon_narrow(int size, TCGv dest, TCGv src)
-{
- switch (size) {
- case 0: gen_helper_neon_narrow_u8(dest, src); break;
- case 1: gen_helper_neon_narrow_u16(dest, src); break;
- case 2: tcg_gen_trunc_i64_i32(dest, src); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_narrow_sats(int size, TCGv dest, TCGv src)
-{
- switch (size) {
- case 0: gen_helper_neon_narrow_sat_s8(dest, cpu_env, src); break;
- case 1: gen_helper_neon_narrow_sat_s16(dest, cpu_env, src); break;
- case 2: gen_helper_neon_narrow_sat_s32(dest, cpu_env, src); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_narrow_satu(int size, TCGv dest, TCGv src)
-{
- switch (size) {
- case 0: gen_helper_neon_narrow_sat_u8(dest, cpu_env, src); break;
- case 1: gen_helper_neon_narrow_sat_u16(dest, cpu_env, src); break;
- case 2: gen_helper_neon_narrow_sat_u32(dest, cpu_env, src); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_shift_narrow(int size, TCGv var, TCGv shift,
- int q, int u)
-{
- if (q) {
- if (u) {
- switch (size) {
- case 1: gen_helper_neon_rshl_u16(var, var, shift); break;
- case 2: gen_helper_neon_rshl_u32(var, var, shift); break;
- default: abort();
- }
- } else {
- switch (size) {
- case 1: gen_helper_neon_rshl_s16(var, var, shift); break;
- case 2: gen_helper_neon_rshl_s32(var, var, shift); break;
- default: abort();
- }
- }
- } else {
- if (u) {
- switch (size) {
- case 1: gen_helper_neon_rshl_u16(var, var, shift); break;
- case 2: gen_helper_neon_rshl_u32(var, var, shift); break;
- default: abort();
- }
- } else {
- switch (size) {
- case 1: gen_helper_neon_shl_s16(var, var, shift); break;
- case 2: gen_helper_neon_shl_s32(var, var, shift); break;
- default: abort();
- }
- }
- }
-}
-
-static inline void gen_neon_widen(TCGv dest, TCGv src, int size, int u)
-{
- if (u) {
- switch (size) {
- case 0: gen_helper_neon_widen_u8(dest, src); break;
- case 1: gen_helper_neon_widen_u16(dest, src); break;
- case 2: tcg_gen_extu_i32_i64(dest, src); break;
- default: abort();
- }
- } else {
- switch (size) {
- case 0: gen_helper_neon_widen_s8(dest, src); break;
- case 1: gen_helper_neon_widen_s16(dest, src); break;
- case 2: tcg_gen_ext_i32_i64(dest, src); break;
- default: abort();
- }
- }
- dead_tmp(src);
-}
-
-static inline void gen_neon_addl(int size)
-{
- switch (size) {
- case 0: gen_helper_neon_addl_u16(CPU_V001); break;
- case 1: gen_helper_neon_addl_u32(CPU_V001); break;
- case 2: tcg_gen_add_i64(CPU_V001); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_subl(int size)
-{
- switch (size) {
- case 0: gen_helper_neon_subl_u16(CPU_V001); break;
- case 1: gen_helper_neon_subl_u32(CPU_V001); break;
- case 2: tcg_gen_sub_i64(CPU_V001); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_negl(TCGv var, int size)
-{
- switch (size) {
- case 0: gen_helper_neon_negl_u16(var, var); break;
- case 1: gen_helper_neon_negl_u32(var, var); break;
- case 2: gen_helper_neon_negl_u64(var, var); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_addl_saturate(TCGv op0, TCGv op1, int size)
-{
- switch (size) {
- case 1: gen_helper_neon_addl_saturate_s32(op0, cpu_env, op0, op1); break;
- case 2: gen_helper_neon_addl_saturate_s64(op0, cpu_env, op0, op1); break;
- default: abort();
- }
-}
-
-static inline void gen_neon_mull(TCGv dest, TCGv a, TCGv b, int size, int u)
-{
- TCGv tmp;
-
- switch ((size << 1) | u) {
- case 0: gen_helper_neon_mull_s8(dest, a, b); break;
- case 1: gen_helper_neon_mull_u8(dest, a, b); break;
- case 2: gen_helper_neon_mull_s16(dest, a, b); break;
- case 3: gen_helper_neon_mull_u16(dest, a, b); break;
- case 4:
- tmp = gen_muls_i64_i32(a, b);
- tcg_gen_mov_i64(dest, tmp);
- break;
- case 5:
- tmp = gen_mulu_i64_i32(a, b);
- tcg_gen_mov_i64(dest, tmp);
- break;
- default: abort();
- }
- if (size < 2) {
- dead_tmp(b);
- dead_tmp(a);
- }
-}
-
-/* Translate a NEON data processing instruction. Return nonzero if the
- instruction is invalid.
- We process data in a mixture of 32-bit and 64-bit chunks.
- Mostly we use 32-bit chunks so we can use normal scalar instructions. */
-
-static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
-{
- int op;
- int q;
- int rd, rn, rm;
- int size;
- int shift;
- int pass;
- int count;
- int pairwise;
- int u;
- int n;
- uint32_t imm;
- TCGv tmp;
- TCGv tmp2;
- TCGv tmp3;
-
- if (!vfp_enabled(env))
- return 1;
- q = (insn & (1 << 6)) != 0;
- u = (insn >> 24) & 1;
- VFP_DREG_D(rd, insn);
- VFP_DREG_N(rn, insn);
- VFP_DREG_M(rm, insn);
- size = (insn >> 20) & 3;
- if ((insn & (1 << 23)) == 0) {
- /* Three register same length. */
- op = ((insn >> 7) & 0x1e) | ((insn >> 4) & 1);
- if (size == 3 && (op == 1 || op == 5 || op == 8 || op == 9
- || op == 10 || op == 11 || op == 16)) {
- /* 64-bit element instructions. */
- for (pass = 0; pass < (q ? 2 : 1); pass++) {
- neon_load_reg64(cpu_V0, rn + pass);
- neon_load_reg64(cpu_V1, rm + pass);
- switch (op) {
- case 1: /* VQADD */
- if (u) {
- gen_helper_neon_add_saturate_u64(CPU_V001);
- } else {
- gen_helper_neon_add_saturate_s64(CPU_V001);
- }
- break;
- case 5: /* VQSUB */
- if (u) {
- gen_helper_neon_sub_saturate_u64(CPU_V001);
- } else {
- gen_helper_neon_sub_saturate_s64(CPU_V001);
- }
- break;
- case 8: /* VSHL */
- if (u) {
- gen_helper_neon_shl_u64(cpu_V0, cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_shl_s64(cpu_V0, cpu_V1, cpu_V0);
- }
- break;
- case 9: /* VQSHL */
- if (u) {
- gen_helper_neon_qshl_u64(cpu_V0, cpu_env,
- cpu_V0, cpu_V0);
- } else {
- gen_helper_neon_qshl_s64(cpu_V1, cpu_env,
- cpu_V1, cpu_V0);
- }
- break;
- case 10: /* VRSHL */
- if (u) {
- gen_helper_neon_rshl_u64(cpu_V0, cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_rshl_s64(cpu_V0, cpu_V1, cpu_V0);
- }
- break;
- case 11: /* VQRSHL */
- if (u) {
- gen_helper_neon_qrshl_u64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- } else {
- gen_helper_neon_qrshl_s64(cpu_V0, cpu_env,
- cpu_V1, cpu_V0);
- }
- break;
- case 16:
- if (u) {
- tcg_gen_sub_i64(CPU_V001);
- } else {
- tcg_gen_add_i64(CPU_V001);
- }
- break;
- default:
- abort();
- }
- neon_store_reg64(cpu_V0, rd + pass);
- }
- return 0;
- }
- switch (op) {
- case 8: /* VSHL */
- case 9: /* VQSHL */
- case 10: /* VRSHL */
- case 11: /* VQRSHL */
- {
- int rtmp;
- /* Shift instruction operands are reversed. */
- rtmp = rn;
- rn = rm;
- rm = rtmp;
- pairwise = 0;
- }
- break;
- case 20: /* VPMAX */
- case 21: /* VPMIN */
- case 23: /* VPADD */
- pairwise = 1;
- break;
- case 26: /* VPADD (float) */
- pairwise = (u && size < 2);
- break;
- case 30: /* VPMIN/VPMAX (float) */
- pairwise = u;
- break;
- default:
- pairwise = 0;
- break;
- }
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
-
- if (pairwise) {
- /* Pairwise. */
- if (q)
- n = (pass & 1) * 2;
- else
- n = 0;
- if (pass < q + 1) {
- NEON_GET_REG(T0, rn, n);
- NEON_GET_REG(T1, rn, n + 1);
- } else {
- NEON_GET_REG(T0, rm, n);
- NEON_GET_REG(T1, rm, n + 1);
- }
- } else {
- /* Elementwise. */
- NEON_GET_REG(T0, rn, pass);
- NEON_GET_REG(T1, rm, pass);
- }
- switch (op) {
- case 0: /* VHADD */
- GEN_NEON_INTEGER_OP(hadd);
- break;
- case 1: /* VQADD */
- GEN_NEON_INTEGER_OP_ENV(qadd);
- break;
- case 2: /* VRHADD */
- GEN_NEON_INTEGER_OP(rhadd);
- break;
- case 3: /* Logic ops. */
- switch ((u << 2) | size) {
- case 0: /* VAND */
- gen_op_andl_T0_T1();
- break;
- case 1: /* BIC */
- gen_op_bicl_T0_T1();
- break;
- case 2: /* VORR */
- gen_op_orl_T0_T1();
- break;
- case 3: /* VORN */
- gen_op_notl_T1();
- gen_op_orl_T0_T1();
- break;
- case 4: /* VEOR */
- gen_op_xorl_T0_T1();
- break;
- case 5: /* VBSL */
- tmp = neon_load_reg(rd, pass);
- gen_neon_bsl(cpu_T[0], cpu_T[0], cpu_T[1], tmp);
- dead_tmp(tmp);
- break;
- case 6: /* VBIT */
- tmp = neon_load_reg(rd, pass);
- gen_neon_bsl(cpu_T[0], cpu_T[0], tmp, cpu_T[1]);
- dead_tmp(tmp);
- break;
- case 7: /* VBIF */
- tmp = neon_load_reg(rd, pass);
- gen_neon_bsl(cpu_T[0], tmp, cpu_T[0], cpu_T[1]);
- dead_tmp(tmp);
- break;
- }
- break;
- case 4: /* VHSUB */
- GEN_NEON_INTEGER_OP(hsub);
- break;
- case 5: /* VQSUB */
- GEN_NEON_INTEGER_OP_ENV(qsub);
- break;
- case 6: /* VCGT */
- GEN_NEON_INTEGER_OP(cgt);
- break;
- case 7: /* VCGE */
- GEN_NEON_INTEGER_OP(cge);
- break;
- case 8: /* VSHL */
- GEN_NEON_INTEGER_OP(shl);
- break;
- case 9: /* VQSHL */
- GEN_NEON_INTEGER_OP_ENV(qshl);
- break;
- case 10: /* VRSHL */
- GEN_NEON_INTEGER_OP(rshl);
- break;
- case 11: /* VQRSHL */
- GEN_NEON_INTEGER_OP_ENV(qrshl);
- break;
- case 12: /* VMAX */
- GEN_NEON_INTEGER_OP(max);
- break;
- case 13: /* VMIN */
- GEN_NEON_INTEGER_OP(min);
- break;
- case 14: /* VABD */
- GEN_NEON_INTEGER_OP(abd);
- break;
- case 15: /* VABA */
- GEN_NEON_INTEGER_OP(abd);
- NEON_GET_REG(T1, rd, pass);
- gen_neon_add(size);
- break;
- case 16:
- if (!u) { /* VADD */
- if (gen_neon_add(size))
- return 1;
- } else { /* VSUB */
- switch (size) {
- case 0: gen_helper_neon_sub_u8(CPU_T001); break;
- case 1: gen_helper_neon_sub_u16(CPU_T001); break;
- case 2: gen_op_subl_T0_T1(); break;
- default: return 1;
- }
- }
- break;
- case 17:
- if (!u) { /* VTST */
- switch (size) {
- case 0: gen_helper_neon_tst_u8(CPU_T001); break;
- case 1: gen_helper_neon_tst_u16(CPU_T001); break;
- case 2: gen_helper_neon_tst_u32(CPU_T001); break;
- default: return 1;
- }
- } else { /* VCEQ */
- switch (size) {
- case 0: gen_helper_neon_ceq_u8(CPU_T001); break;
- case 1: gen_helper_neon_ceq_u16(CPU_T001); break;
- case 2: gen_helper_neon_ceq_u32(CPU_T001); break;
- default: return 1;
- }
- }
- break;
- case 18: /* Multiply. */
- switch (size) {
- case 0: gen_helper_neon_mul_u8(CPU_T001); break;
- case 1: gen_helper_neon_mul_u16(CPU_T001); break;
- case 2: gen_op_mul_T0_T1(); break;
- default: return 1;
- }
- NEON_GET_REG(T1, rd, pass);
- if (u) { /* VMLS */
- gen_neon_rsb(size);
- } else { /* VMLA */
- gen_neon_add(size);
- }
- break;
- case 19: /* VMUL */
- if (u) { /* polynomial */
- gen_helper_neon_mul_p8(CPU_T001);
- } else { /* Integer */
- switch (size) {
- case 0: gen_helper_neon_mul_u8(CPU_T001); break;
- case 1: gen_helper_neon_mul_u16(CPU_T001); break;
- case 2: gen_op_mul_T0_T1(); break;
- default: return 1;
- }
- }
- break;
- case 20: /* VPMAX */
- GEN_NEON_INTEGER_OP(pmax);
- break;
- case 21: /* VPMIN */
- GEN_NEON_INTEGER_OP(pmin);
- break;
- case 22: /* Hultiply high. */
- if (!u) { /* VQDMULH */
- switch (size) {
- case 1: gen_helper_neon_qdmulh_s16(CPU_T0E01); break;
- case 2: gen_helper_neon_qdmulh_s32(CPU_T0E01); break;
- default: return 1;
- }
- } else { /* VQRDHMUL */
- switch (size) {
- case 1: gen_helper_neon_qrdmulh_s16(CPU_T0E01); break;
- case 2: gen_helper_neon_qrdmulh_s32(CPU_T0E01); break;
- default: return 1;
- }
- }
- break;
- case 23: /* VPADD */
- if (u)
- return 1;
- switch (size) {
- case 0: gen_helper_neon_padd_u8(CPU_T001); break;
- case 1: gen_helper_neon_padd_u16(CPU_T001); break;
- case 2: gen_op_addl_T0_T1(); break;
- default: return 1;
- }
- break;
- case 26: /* Floating point arithnetic. */
- switch ((u << 2) | size) {
- case 0: /* VADD */
- gen_helper_neon_add_f32(CPU_T001);
- break;
- case 2: /* VSUB */
- gen_helper_neon_sub_f32(CPU_T001);
- break;
- case 4: /* VPADD */
- gen_helper_neon_add_f32(CPU_T001);
- break;
- case 6: /* VABD */
- gen_helper_neon_abd_f32(CPU_T001);
- break;
- default:
- return 1;
- }
- break;
- case 27: /* Float multiply. */
- gen_helper_neon_mul_f32(CPU_T001);
- if (!u) {
- NEON_GET_REG(T1, rd, pass);
- if (size == 0) {
- gen_helper_neon_add_f32(CPU_T001);
- } else {
- gen_helper_neon_sub_f32(cpu_T[0], cpu_T[1], cpu_T[0]);
- }
- }
- break;
- case 28: /* Float compare. */
- if (!u) {
- gen_helper_neon_ceq_f32(CPU_T001);
- } else {
- if (size == 0)
- gen_helper_neon_cge_f32(CPU_T001);
- else
- gen_helper_neon_cgt_f32(CPU_T001);
- }
- break;
- case 29: /* Float compare absolute. */
- if (!u)
- return 1;
- if (size == 0)
- gen_helper_neon_acge_f32(CPU_T001);
- else
- gen_helper_neon_acgt_f32(CPU_T001);
- break;
- case 30: /* Float min/max. */
- if (size == 0)
- gen_helper_neon_max_f32(CPU_T001);
- else
- gen_helper_neon_min_f32(CPU_T001);
- break;
- case 31:
- if (size == 0)
- gen_helper_recps_f32(cpu_T[0], cpu_T[0], cpu_T[1], cpu_env);
- else
- gen_helper_rsqrts_f32(cpu_T[0], cpu_T[0], cpu_T[1], cpu_env);
- break;
- default:
- abort();
- }
- /* Save the result. For elementwise operations we can put it
- straight into the destination register. For pairwise operations
- we have to be careful to avoid clobbering the source operands. */
- if (pairwise && rd == rm) {
- gen_neon_movl_scratch_T0(pass);
- } else {
- NEON_SET_REG(T0, rd, pass);
- }
-
- } /* for pass */
- if (pairwise && rd == rm) {
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- gen_neon_movl_T0_scratch(pass);
- NEON_SET_REG(T0, rd, pass);
- }
- }
- /* End of 3 register same size operations. */
- } else if (insn & (1 << 4)) {
- if ((insn & 0x00380080) != 0) {
- /* Two registers and shift. */
- op = (insn >> 8) & 0xf;
- if (insn & (1 << 7)) {
- /* 64-bit shift. */
- size = 3;
- } else {
- size = 2;
- while ((insn & (1 << (size + 19))) == 0)
- size--;
- }
- shift = (insn >> 16) & ((1 << (3 + size)) - 1);
- /* To avoid excessive dumplication of ops we implement shift
- by immediate using the variable shift operations. */
- if (op < 8) {
- /* Shift by immediate:
- VSHR, VSRA, VRSHR, VRSRA, VSRI, VSHL, VQSHL, VQSHLU. */
- /* Right shifts are encoded as N - shift, where N is the
- element size in bits. */
- if (op <= 4)
- shift = shift - (1 << (size + 3));
- if (size == 3) {
- count = q + 1;
- } else {
- count = q ? 4: 2;
- }
- switch (size) {
- case 0:
- imm = (uint8_t) shift;
- imm |= imm << 8;
- imm |= imm << 16;
- break;
- case 1:
- imm = (uint16_t) shift;
- imm |= imm << 16;
- break;
- case 2:
- case 3:
- imm = shift;
- break;
- default:
- abort();
- }
-
- for (pass = 0; pass < count; pass++) {
- if (size == 3) {
- neon_load_reg64(cpu_V0, rm + pass);
- tcg_gen_movi_i64(cpu_V1, imm);
- switch (op) {
- case 0: /* VSHR */
- case 1: /* VSRA */
- if (u)
- gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
- else
- gen_helper_neon_shl_s64(cpu_V0, cpu_V0, cpu_V1);
- break;
- case 2: /* VRSHR */
- case 3: /* VRSRA */
- if (u)
- gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, cpu_V1);
- else
- gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, cpu_V1);
- break;
- case 4: /* VSRI */
- if (!u)
- return 1;
- gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
- break;
- case 5: /* VSHL, VSLI */
- gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1);
- break;
- case 6: /* VQSHL */
- if (u)
- gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
- else
- gen_helper_neon_qshl_s64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
- break;
- case 7: /* VQSHLU */
- gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1);
- break;
- }
- if (op == 1 || op == 3) {
- /* Accumulate. */
- neon_load_reg64(cpu_V0, rd + pass);
- tcg_gen_add_i64(cpu_V0, cpu_V0, cpu_V1);
- } else if (op == 4 || (op == 5 && u)) {
- /* Insert */
- cpu_abort(env, "VS[LR]I.64 not implemented");
- }
- neon_store_reg64(cpu_V0, rd + pass);
- } else { /* size < 3 */
- /* Operands in T0 and T1. */
- gen_op_movl_T1_im(imm);
- NEON_GET_REG(T0, rm, pass);
- switch (op) {
- case 0: /* VSHR */
- case 1: /* VSRA */
- GEN_NEON_INTEGER_OP(shl);
- break;
- case 2: /* VRSHR */
- case 3: /* VRSRA */
- GEN_NEON_INTEGER_OP(rshl);
- break;
- case 4: /* VSRI */
- if (!u)
- return 1;
- GEN_NEON_INTEGER_OP(shl);
- break;
- case 5: /* VSHL, VSLI */
- switch (size) {
- case 0: gen_helper_neon_shl_u8(CPU_T001); break;
- case 1: gen_helper_neon_shl_u16(CPU_T001); break;
- case 2: gen_helper_neon_shl_u32(CPU_T001); break;
- default: return 1;
- }
- break;
- case 6: /* VQSHL */
- GEN_NEON_INTEGER_OP_ENV(qshl);
- break;
- case 7: /* VQSHLU */
- switch (size) {
- case 0: gen_helper_neon_qshl_u8(CPU_T0E01); break;
- case 1: gen_helper_neon_qshl_u16(CPU_T0E01); break;
- case 2: gen_helper_neon_qshl_u32(CPU_T0E01); break;
- default: return 1;
- }
- break;
- }
-
- if (op == 1 || op == 3) {
- /* Accumulate. */
- NEON_GET_REG(T1, rd, pass);
- gen_neon_add(size);
- } else if (op == 4 || (op == 5 && u)) {
- /* Insert */
- switch (size) {
- case 0:
- if (op == 4)
- imm = 0xff >> -shift;
- else
- imm = (uint8_t)(0xff << shift);
- imm |= imm << 8;
- imm |= imm << 16;
- break;
- case 1:
- if (op == 4)
- imm = 0xffff >> -shift;
- else
- imm = (uint16_t)(0xffff << shift);
- imm |= imm << 16;
- break;
- case 2:
- if (op == 4)
- imm = 0xffffffffu >> -shift;
- else
- imm = 0xffffffffu << shift;
- break;
- default:
- abort();
- }
- tmp = neon_load_reg(rd, pass);
- tcg_gen_andi_i32(cpu_T[0], cpu_T[0], imm);
- tcg_gen_andi_i32(tmp, tmp, ~imm);
- tcg_gen_or_i32(cpu_T[0], cpu_T[0], tmp);
- }
- NEON_SET_REG(T0, rd, pass);
- }
- } /* for pass */
- } else if (op < 10) {
- /* Shift by immediate and narrow:
- VSHRN, VRSHRN, VQSHRN, VQRSHRN. */
- shift = shift - (1 << (size + 3));
- size++;
- switch (size) {
- case 1:
- imm = (uint16_t)shift;
- imm |= imm << 16;
- tmp2 = tcg_const_i32(imm);
- break;
- case 2:
- imm = (uint32_t)shift;
- tmp2 = tcg_const_i32(imm);
- case 3:
- tmp2 = tcg_const_i64(shift);
- break;
- default:
- abort();
- }
-
- for (pass = 0; pass < 2; pass++) {
- if (size == 3) {
- neon_load_reg64(cpu_V0, rm + pass);
- if (q) {
- if (u)
- gen_helper_neon_rshl_u64(cpu_V0, cpu_V0, tmp2);
- else
- gen_helper_neon_rshl_s64(cpu_V0, cpu_V0, tmp2);
- } else {
- if (u)
- gen_helper_neon_shl_u64(cpu_V0, cpu_V0, tmp2);
- else
- gen_helper_neon_shl_s64(cpu_V0, cpu_V0, tmp2);
- }
- } else {
- tmp = neon_load_reg(rm + pass, 0);
- gen_neon_shift_narrow(size, tmp, tmp2, q, u);
- tcg_gen_extu_i32_i64(cpu_V0, tmp);
- dead_tmp(tmp);
- tmp = neon_load_reg(rm + pass, 1);
- gen_neon_shift_narrow(size, tmp, tmp2, q, u);
- tcg_gen_extu_i32_i64(cpu_V1, tmp);
- dead_tmp(tmp);
- tcg_gen_shli_i64(cpu_V1, cpu_V1, 32);
- tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
- }
- tmp = new_tmp();
- if (op == 8 && !u) {
- gen_neon_narrow(size - 1, tmp, cpu_V0);
- } else {
- if (op == 8)
- gen_neon_narrow_sats(size - 1, tmp, cpu_V0);
- else
- gen_neon_narrow_satu(size - 1, tmp, cpu_V0);
- }
- if (pass == 0) {
- tmp2 = tmp;
- } else {
- neon_store_reg(rd, 0, tmp2);
- neon_store_reg(rd, 1, tmp);
- }
- } /* for pass */
- } else if (op == 10) {
- /* VSHLL */
- if (q || size == 3)
- return 1;
- tmp = neon_load_reg(rm, 0);
- tmp2 = neon_load_reg(rm, 1);
- for (pass = 0; pass < 2; pass++) {
- if (pass == 1)
- tmp = tmp2;
-
- gen_neon_widen(cpu_V0, tmp, size, u);
-
- if (shift != 0) {
- /* The shift is less than the width of the source
- type, so we can just shift the whole register. */
- tcg_gen_shli_i64(cpu_V0, cpu_V0, shift);
- if (size < 2 || !u) {
- uint64_t imm64;
- if (size == 0) {
- imm = (0xffu >> (8 - shift));
- imm |= imm << 16;
- } else {
- imm = 0xffff >> (16 - shift);
- }
- imm64 = imm | (((uint64_t)imm) << 32);
- tcg_gen_andi_i64(cpu_V0, cpu_V0, imm64);
- }
- }
- neon_store_reg64(cpu_V0, rd + pass);
- }
- } else if (op == 15 || op == 16) {
- /* VCVT fixed-point. */
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- tcg_gen_ld_f32(cpu_F0s, cpu_env, neon_reg_offset(rm, pass));
- if (op & 1) {
- if (u)
- gen_vfp_ulto(0, shift);
- else
- gen_vfp_slto(0, shift);
- } else {
- if (u)
- gen_vfp_toul(0, shift);
- else
- gen_vfp_tosl(0, shift);
- }
- tcg_gen_st_f32(cpu_F0s, cpu_env, neon_reg_offset(rd, pass));
- }
- } else {
- return 1;
- }
- } else { /* (insn & 0x00380080) == 0 */
- int invert;
-
- op = (insn >> 8) & 0xf;
- /* One register and immediate. */
- imm = (u << 7) | ((insn >> 12) & 0x70) | (insn & 0xf);
- invert = (insn & (1 << 5)) != 0;
- switch (op) {
- case 0: case 1:
- /* no-op */
- break;
- case 2: case 3:
- imm <<= 8;
- break;
- case 4: case 5:
- imm <<= 16;
- break;
- case 6: case 7:
- imm <<= 24;
- break;
- case 8: case 9:
- imm |= imm << 16;
- break;
- case 10: case 11:
- imm = (imm << 8) | (imm << 24);
- break;
- case 12:
- imm = (imm < 8) | 0xff;
- break;
- case 13:
- imm = (imm << 16) | 0xffff;
- break;
- case 14:
- imm |= (imm << 8) | (imm << 16) | (imm << 24);
- if (invert)
- imm = ~imm;
- break;
- case 15:
- imm = ((imm & 0x80) << 24) | ((imm & 0x3f) << 19)
- | ((imm & 0x40) ? (0x1f << 25) : (1 << 30));
- break;
- }
- if (invert)
- imm = ~imm;
-
- if (op != 14 || !invert)
- gen_op_movl_T1_im(imm);
-
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- if (op & 1 && op < 12) {
- tmp = neon_load_reg(rd, pass);
- if (invert) {
- /* The immediate value has already been inverted, so
- BIC becomes AND. */
- tcg_gen_andi_i32(tmp, tmp, imm);
- } else {
- tcg_gen_ori_i32(tmp, tmp, imm);
- }
- } else {
- /* VMOV, VMVN. */
- tmp = new_tmp();
- if (op == 14 && invert) {
- uint32_t val;
- val = 0;
- for (n = 0; n < 4; n++) {
- if (imm & (1 << (n + (pass & 1) * 4)))
- val |= 0xff << (n * 8);
- }
- tcg_gen_movi_i32(tmp, val);
- } else {
- tcg_gen_movi_i32(tmp, imm);
- }
- }
- neon_store_reg(rd, pass, tmp);
- }
- }
- } else { /* (insn & 0x00800010 == 0x00800010) */
- if (size != 3) {
- op = (insn >> 8) & 0xf;
- if ((insn & (1 << 6)) == 0) {
- /* Three registers of different lengths. */
- int src1_wide;
- int src2_wide;
- int prewiden;
- /* prewiden, src1_wide, src2_wide */
- static const int neon_3reg_wide[16][3] = {
- {1, 0, 0}, /* VADDL */
- {1, 1, 0}, /* VADDW */
- {1, 0, 0}, /* VSUBL */
- {1, 1, 0}, /* VSUBW */
- {0, 1, 1}, /* VADDHN */
- {0, 0, 0}, /* VABAL */
- {0, 1, 1}, /* VSUBHN */
- {0, 0, 0}, /* VABDL */
- {0, 0, 0}, /* VMLAL */
- {0, 0, 0}, /* VQDMLAL */
- {0, 0, 0}, /* VMLSL */
- {0, 0, 0}, /* VQDMLSL */
- {0, 0, 0}, /* Integer VMULL */
- {0, 0, 0}, /* VQDMULL */
- {0, 0, 0} /* Polynomial VMULL */
- };
-
- prewiden = neon_3reg_wide[op][0];
- src1_wide = neon_3reg_wide[op][1];
- src2_wide = neon_3reg_wide[op][2];
-
- if (size == 0 && (op == 9 || op == 11 || op == 13))
- return 1;
-
- /* Avoid overlapping operands. Wide source operands are
- always aligned so will never overlap with wide
- destinations in problematic ways. */
- if (rd == rm && !src2_wide) {
- NEON_GET_REG(T0, rm, 1);
- gen_neon_movl_scratch_T0(2);
- } else if (rd == rn && !src1_wide) {
- NEON_GET_REG(T0, rn, 1);
- gen_neon_movl_scratch_T0(2);
- }
- TCGV_UNUSED(tmp3);
- for (pass = 0; pass < 2; pass++) {
- if (src1_wide) {
- neon_load_reg64(cpu_V0, rn + pass);
- TCGV_UNUSED(tmp);
- } else {
- if (pass == 1 && rd == rn) {
- gen_neon_movl_T0_scratch(2);
- tmp = new_tmp();
- tcg_gen_mov_i32(tmp, cpu_T[0]);
- } else {
- tmp = neon_load_reg(rn, pass);
- }
- if (prewiden) {
- gen_neon_widen(cpu_V0, tmp, size, u);
- }
- }
- if (src2_wide) {
- neon_load_reg64(cpu_V1, rm + pass);
- TCGV_UNUSED(tmp2);
- } else {
- if (pass == 1 && rd == rm) {
- gen_neon_movl_T0_scratch(2);
- tmp2 = new_tmp();
- tcg_gen_mov_i32(tmp2, cpu_T[0]);
- } else {
- tmp2 = neon_load_reg(rm, pass);
- }
- if (prewiden) {
- gen_neon_widen(cpu_V1, tmp2, size, u);
- }
- }
- switch (op) {
- case 0: case 1: case 4: /* VADDL, VADDW, VADDHN, VRADDHN */
- gen_neon_addl(size);
- break;
- case 2: case 3: case 6: /* VSUBL, VSUBW, VSUBHL, VRSUBHL */
- gen_neon_subl(size);
- break;
- case 5: case 7: /* VABAL, VABDL */
- switch ((size << 1) | u) {
- case 0:
- gen_helper_neon_abdl_s16(cpu_V0, tmp, tmp2);
- break;
- case 1:
- gen_helper_neon_abdl_u16(cpu_V0, tmp, tmp2);
- break;
- case 2:
- gen_helper_neon_abdl_s32(cpu_V0, tmp, tmp2);
- break;
- case 3:
- gen_helper_neon_abdl_u32(cpu_V0, tmp, tmp2);
- break;
- case 4:
- gen_helper_neon_abdl_s64(cpu_V0, tmp, tmp2);
- break;
- case 5:
- gen_helper_neon_abdl_u64(cpu_V0, tmp, tmp2);
- break;
- default: abort();
- }
- dead_tmp(tmp2);
- dead_tmp(tmp);
- break;
- case 8: case 9: case 10: case 11: case 12: case 13:
- /* VMLAL, VQDMLAL, VMLSL, VQDMLSL, VMULL, VQDMULL */
- gen_neon_mull(cpu_V0, tmp, tmp2, size, u);
- break;
- case 14: /* Polynomial VMULL */
- cpu_abort(env, "Polynomial VMULL not implemented");
-
- default: /* 15 is RESERVED. */
- return 1;
- }
- if (op == 5 || op == 13 || (op >= 8 && op <= 11)) {
- /* Accumulate. */
- if (op == 10 || op == 11) {
- gen_neon_negl(cpu_V0, size);
- }
-
- if (op != 13) {
- neon_load_reg64(cpu_V1, rd + pass);
- }
-
- switch (op) {
- case 5: case 8: case 10: /* VABAL, VMLAL, VMLSL */
- gen_neon_addl(size);
- break;
- case 9: case 11: /* VQDMLAL, VQDMLSL */
- gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
- gen_neon_addl_saturate(cpu_V0, cpu_V1, size);
- break;
- /* Fall through. */
- case 13: /* VQDMULL */
- gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
- break;
- default:
- abort();
- }
- neon_store_reg64(cpu_V0, rd + pass);
- } else if (op == 4 || op == 6) {
- /* Narrowing operation. */
- tmp = new_tmp();
- if (u) {
- switch (size) {
- case 0:
- gen_helper_neon_narrow_high_u8(tmp, cpu_V0);
- break;
- case 1:
- gen_helper_neon_narrow_high_u16(tmp, cpu_V0);
- break;
- case 2:
- tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
- tcg_gen_trunc_i64_i32(tmp, cpu_V0);
- break;
- default: abort();
- }
- } else {
- switch (size) {
- case 0:
- gen_helper_neon_narrow_round_high_u8(tmp, cpu_V0);
- break;
- case 1:
- gen_helper_neon_narrow_round_high_u16(tmp, cpu_V0);
- break;
- case 2:
- tcg_gen_addi_i64(cpu_V0, cpu_V0, 1u << 31);
- tcg_gen_shri_i64(cpu_V0, cpu_V0, 32);
- tcg_gen_trunc_i64_i32(tmp, cpu_V0);
- break;
- default: abort();
- }
- }
- if (pass == 0) {
- tmp3 = tmp;
- } else {
- neon_store_reg(rd, 0, tmp3);
- neon_store_reg(rd, 1, tmp);
- }
- } else {
- /* Write back the result. */
- neon_store_reg64(cpu_V0, rd + pass);
- }
- }
- } else {
- /* Two registers and a scalar. */
- switch (op) {
- case 0: /* Integer VMLA scalar */
- case 1: /* Float VMLA scalar */
- case 4: /* Integer VMLS scalar */
- case 5: /* Floating point VMLS scalar */
- case 8: /* Integer VMUL scalar */
- case 9: /* Floating point VMUL scalar */
- case 12: /* VQDMULH scalar */
- case 13: /* VQRDMULH scalar */
- gen_neon_get_scalar(size, rm);
- gen_neon_movl_scratch_T0(0);
- for (pass = 0; pass < (u ? 4 : 2); pass++) {
- if (pass != 0)
- gen_neon_movl_T0_scratch(0);
- NEON_GET_REG(T1, rn, pass);
- if (op == 12) {
- if (size == 1) {
- gen_helper_neon_qdmulh_s16(CPU_T0E01);
- } else {
- gen_helper_neon_qdmulh_s32(CPU_T0E01);
- }
- } else if (op == 13) {
- if (size == 1) {
- gen_helper_neon_qrdmulh_s16(CPU_T0E01);
- } else {
- gen_helper_neon_qrdmulh_s32(CPU_T0E01);
- }
- } else if (op & 1) {
- gen_helper_neon_mul_f32(CPU_T001);
- } else {
- switch (size) {
- case 0: gen_helper_neon_mul_u8(CPU_T001); break;
- case 1: gen_helper_neon_mul_u16(CPU_T001); break;
- case 2: gen_op_mul_T0_T1(); break;
- default: return 1;
- }
- }
- if (op < 8) {
- /* Accumulate. */
- NEON_GET_REG(T1, rd, pass);
- switch (op) {
- case 0:
- gen_neon_add(size);
- break;
- case 1:
- gen_helper_neon_add_f32(CPU_T001);
- break;
- case 4:
- gen_neon_rsb(size);
- break;
- case 5:
- gen_helper_neon_sub_f32(cpu_T[0], cpu_T[1], cpu_T[0]);
- break;
- default:
- abort();
- }
- }
- NEON_SET_REG(T0, rd, pass);
- }
- break;
- case 2: /* VMLAL sclar */
- case 3: /* VQDMLAL scalar */
- case 6: /* VMLSL scalar */
- case 7: /* VQDMLSL scalar */
- case 10: /* VMULL scalar */
- case 11: /* VQDMULL scalar */
- if (size == 0 && (op == 3 || op == 7 || op == 11))
- return 1;
-
- gen_neon_get_scalar(size, rm);
- NEON_GET_REG(T1, rn, 1);
-
- for (pass = 0; pass < 2; pass++) {
- if (pass == 0) {
- tmp = neon_load_reg(rn, 0);
- } else {
- tmp = new_tmp();
- tcg_gen_mov_i32(tmp, cpu_T[1]);
- }
- tmp2 = new_tmp();
- tcg_gen_mov_i32(tmp2, cpu_T[0]);
- gen_neon_mull(cpu_V0, tmp, tmp2, size, u);
- if (op == 6 || op == 7) {
- gen_neon_negl(cpu_V0, size);
- }
- if (op != 11) {
- neon_load_reg64(cpu_V1, rd + pass);
- }
- switch (op) {
- case 2: case 6:
- gen_neon_addl(size);
- break;
- case 3: case 7:
- gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
- gen_neon_addl_saturate(cpu_V0, cpu_V1, size);
- break;
- case 10:
- /* no-op */
- break;
- case 11:
- gen_neon_addl_saturate(cpu_V0, cpu_V0, size);
- break;
- default:
- abort();
- }
- neon_store_reg64(cpu_V0, rd + pass);
- }
- break;
- default: /* 14 and 15 are RESERVED */
- return 1;
- }
- }
- } else { /* size == 3 */
- if (!u) {
- /* Extract. */
- imm = (insn >> 8) & 0xf;
- count = q + 1;
-
- if (imm > 7 && !q)
- return 1;
-
- if (imm == 0) {
- neon_load_reg64(cpu_V0, rn);
- if (q) {
- neon_load_reg64(cpu_V1, rn + 1);
- }
- } else if (imm == 8) {
- neon_load_reg64(cpu_V0, rn + 1);
- if (q) {
- neon_load_reg64(cpu_V1, rm);
- }
- } else if (q) {
- tmp = tcg_temp_new(TCG_TYPE_I64);
- if (imm < 8) {
- neon_load_reg64(cpu_V0, rn);
- neon_load_reg64(tmp, rn + 1);
- } else {
- neon_load_reg64(cpu_V0, rn + 1);
- neon_load_reg64(tmp, rm);
- }
- tcg_gen_shri_i64(cpu_V0, cpu_V0, (imm & 7) * 8);
- tcg_gen_shli_i64(cpu_V1, tmp, 64 - ((imm & 7) * 8));
- tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
- if (imm < 8) {
- neon_load_reg64(cpu_V1, rm);
- } else {
- neon_load_reg64(cpu_V1, rm + 1);
- imm -= 8;
- }
- tcg_gen_shli_i64(cpu_V1, cpu_V1, 64 - (imm * 8));
- tcg_gen_shri_i64(tmp, tmp, imm * 8);
- tcg_gen_or_i64(cpu_V1, cpu_V1, tmp);
- } else {
- neon_load_reg64(cpu_V0, rn);
- tcg_gen_shri_i32(cpu_V0, cpu_V0, imm * 8);
- neon_load_reg64(cpu_V1, rm);
- tcg_gen_shli_i32(cpu_V1, cpu_V1, 64 - (imm * 8));
- tcg_gen_or_i64(cpu_V0, cpu_V0, cpu_V1);
- }
- neon_store_reg64(cpu_V0, rd);
- if (q) {
- neon_store_reg64(cpu_V1, rd + 1);
- }
- } else if ((insn & (1 << 11)) == 0) {
- /* Two register misc. */
- op = ((insn >> 12) & 0x30) | ((insn >> 7) & 0xf);
- size = (insn >> 18) & 3;
- switch (op) {
- case 0: /* VREV64 */
- if (size == 3)
- return 1;
- for (pass = 0; pass < (q ? 2 : 1); pass++) {
- NEON_GET_REG(T0, rm, pass * 2);
- NEON_GET_REG(T1, rm, pass * 2 + 1);
- switch (size) {
- case 0: tcg_gen_bswap_i32(cpu_T[0], cpu_T[0]); break;
- case 1: gen_swap_half(cpu_T[0]); break;
- case 2: /* no-op */ break;
- default: abort();
- }
- NEON_SET_REG(T0, rd, pass * 2 + 1);
- if (size == 2) {
- NEON_SET_REG(T1, rd, pass * 2);
- } else {
- gen_op_movl_T0_T1();
- switch (size) {
- case 0: tcg_gen_bswap_i32(cpu_T[0], cpu_T[0]); break;
- case 1: gen_swap_half(cpu_T[0]); break;
- default: abort();
- }
- NEON_SET_REG(T0, rd, pass * 2);
- }
- }
- break;
- case 4: case 5: /* VPADDL */
- case 12: case 13: /* VPADAL */
- if (size == 3)
- return 1;
- for (pass = 0; pass < q + 1; pass++) {
- tmp = neon_load_reg(rm, pass * 2);
- gen_neon_widen(cpu_V0, tmp, size, op & 1);
- tmp = neon_load_reg(rm, pass * 2 + 1);
- gen_neon_widen(cpu_V1, tmp, size, op & 1);
- switch (size) {
- case 0: gen_helper_neon_paddl_u16(CPU_V001); break;
- case 1: gen_helper_neon_paddl_u32(CPU_V001); break;
- case 2: tcg_gen_add_i64(CPU_V001); break;
- default: abort();
- }
- if (op >= 12) {
- /* Accumulate. */
- neon_load_reg64(cpu_V1, rd + pass);
- gen_neon_addl(size);
- }
- neon_store_reg64(cpu_V0, rd + pass);
- }
- break;
- case 33: /* VTRN */
- if (size == 2) {
- for (n = 0; n < (q ? 4 : 2); n += 2) {
- NEON_GET_REG(T0, rm, n);
- NEON_GET_REG(T1, rd, n + 1);
- NEON_SET_REG(T1, rm, n);
- NEON_SET_REG(T0, rd, n + 1);
- }
- } else {
- goto elementwise;
- }
- break;
- case 34: /* VUZP */
- /* Reg Before After
- Rd A3 A2 A1 A0 B2 B0 A2 A0
- Rm B3 B2 B1 B0 B3 B1 A3 A1
- */
- if (size == 3)
- return 1;
- gen_neon_unzip(rd, q, 0, size);
- gen_neon_unzip(rm, q, 4, size);
- if (q) {
- static int unzip_order_q[8] =
- {0, 2, 4, 6, 1, 3, 5, 7};
- for (n = 0; n < 8; n++) {
- int reg = (n < 4) ? rd : rm;
- gen_neon_movl_T0_scratch(unzip_order_q[n]);
- NEON_SET_REG(T0, reg, n % 4);
- }
- } else {
- static int unzip_order[4] =
- {0, 4, 1, 5};
- for (n = 0; n < 4; n++) {
- int reg = (n < 2) ? rd : rm;
- gen_neon_movl_T0_scratch(unzip_order[n]);
- NEON_SET_REG(T0, reg, n % 2);
- }
- }
- break;
- case 35: /* VZIP */
- /* Reg Before After
- Rd A3 A2 A1 A0 B1 A1 B0 A0
- Rm B3 B2 B1 B0 B3 A3 B2 A2
- */
- if (size == 3)
- return 1;
- count = (q ? 4 : 2);
- for (n = 0; n < count; n++) {
- NEON_GET_REG(T0, rd, n);
- NEON_GET_REG(T1, rd, n);
- switch (size) {
- case 0: gen_helper_neon_zip_u8(); break;
- case 1: gen_helper_neon_zip_u16(); break;
- case 2: /* no-op */; break;
- default: abort();
- }
- gen_neon_movl_scratch_T0(n * 2);
- gen_neon_movl_scratch_T1(n * 2 + 1);
- }
- for (n = 0; n < count * 2; n++) {
- int reg = (n < count) ? rd : rm;
- gen_neon_movl_T0_scratch(n);
- NEON_SET_REG(T0, reg, n % count);
- }
- break;
- case 36: case 37: /* VMOVN, VQMOVUN, VQMOVN */
- if (size == 3)
- return 1;
- TCGV_UNUSED(tmp2);
- for (pass = 0; pass < 2; pass++) {
- neon_load_reg64(cpu_V0, rm + pass);
- tmp = new_tmp();
- if (op == 36 && q == 0) {
- gen_neon_narrow(size, tmp, cpu_V0);
- } else if (q) {
- gen_neon_narrow_satu(size, tmp, cpu_V0);
- } else {
- gen_neon_narrow_sats(size, tmp, cpu_V0);
- }
- if (pass == 0) {
- tmp2 = tmp;
- } else {
- neon_store_reg(rd, 0, tmp2);
- neon_store_reg(rd, 1, tmp);
- }
- }
- break;
- case 38: /* VSHLL */
- if (q || size == 3)
- return 1;
- tmp = neon_load_reg(rm, 0);
- tmp2 = neon_load_reg(rm, 1);
- for (pass = 0; pass < 2; pass++) {
- if (pass == 1)
- tmp = tmp2;
- gen_neon_widen(cpu_V0, tmp, size, 1);
- neon_store_reg64(cpu_V0, rd + pass);
- }
- break;
- default:
- elementwise:
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- if (op == 30 || op == 31 || op >= 58) {
- tcg_gen_ld_f32(cpu_F0s, cpu_env,
- neon_reg_offset(rm, pass));
- } else {
- NEON_GET_REG(T0, rm, pass);
- }
- switch (op) {
- case 1: /* VREV32 */
- switch (size) {
- case 0: tcg_gen_bswap_i32(cpu_T[0], cpu_T[0]); break;
- case 1: gen_swap_half(cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 2: /* VREV16 */
- if (size != 0)
- return 1;
- gen_rev16(cpu_T[0]);
- break;
- case 8: /* CLS */
- switch (size) {
- case 0: gen_helper_neon_cls_s8(cpu_T[0], cpu_T[0]); break;
- case 1: gen_helper_neon_cls_s16(cpu_T[0], cpu_T[0]); break;
- case 2: gen_helper_neon_cls_s32(cpu_T[0], cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 9: /* CLZ */
- switch (size) {
- case 0: gen_helper_neon_clz_u8(cpu_T[0], cpu_T[0]); break;
- case 1: gen_helper_neon_clz_u16(cpu_T[0], cpu_T[0]); break;
- case 2: gen_helper_clz(cpu_T[0], cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 10: /* CNT */
- if (size != 0)
- return 1;
- gen_helper_neon_cnt_u8(cpu_T[0], cpu_T[0]);
- break;
- case 11: /* VNOT */
- if (size != 0)
- return 1;
- gen_op_notl_T0();
- break;
- case 14: /* VQABS */
- switch (size) {
- case 0: gen_helper_neon_qabs_s8(cpu_T[0], cpu_env, cpu_T[0]); break;
- case 1: gen_helper_neon_qabs_s16(cpu_T[0], cpu_env, cpu_T[0]); break;
- case 2: gen_helper_neon_qabs_s32(cpu_T[0], cpu_env, cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 15: /* VQNEG */
- switch (size) {
- case 0: gen_helper_neon_qneg_s8(cpu_T[0], cpu_env, cpu_T[0]); break;
- case 1: gen_helper_neon_qneg_s16(cpu_T[0], cpu_env, cpu_T[0]); break;
- case 2: gen_helper_neon_qneg_s32(cpu_T[0], cpu_env, cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 16: case 19: /* VCGT #0, VCLE #0 */
- gen_op_movl_T1_im(0);
- switch(size) {
- case 0: gen_helper_neon_cgt_s8(CPU_T001); break;
- case 1: gen_helper_neon_cgt_s16(CPU_T001); break;
- case 2: gen_helper_neon_cgt_s32(CPU_T001); break;
- default: return 1;
- }
- if (op == 19)
- gen_op_notl_T0();
- break;
- case 17: case 20: /* VCGE #0, VCLT #0 */
- gen_op_movl_T1_im(0);
- switch(size) {
- case 0: gen_helper_neon_cge_s8(CPU_T001); break;
- case 1: gen_helper_neon_cge_s16(CPU_T001); break;
- case 2: gen_helper_neon_cge_s32(CPU_T001); break;
- default: return 1;
- }
- if (op == 20)
- gen_op_notl_T0();
- break;
- case 18: /* VCEQ #0 */
- gen_op_movl_T1_im(0);
- switch(size) {
- case 0: gen_helper_neon_ceq_u8(CPU_T001); break;
- case 1: gen_helper_neon_ceq_u16(CPU_T001); break;
- case 2: gen_helper_neon_ceq_u32(CPU_T001); break;
- default: return 1;
- }
- break;
- case 22: /* VABS */
- switch(size) {
- case 0: gen_helper_neon_abs_s8(cpu_T[0], cpu_T[0]); break;
- case 1: gen_helper_neon_abs_s16(cpu_T[0], cpu_T[0]); break;
- case 2: tcg_gen_abs_i32(cpu_T[0], cpu_T[0]); break;
- default: return 1;
- }
- break;
- case 23: /* VNEG */
- gen_op_movl_T1_im(0);
- if (size == 3)
- return 1;
- gen_neon_rsb(size);
- break;
- case 24: case 27: /* Float VCGT #0, Float VCLE #0 */
- gen_op_movl_T1_im(0);
- gen_helper_neon_cgt_f32(CPU_T001);
- if (op == 27)
- gen_op_notl_T0();
- break;
- case 25: case 28: /* Float VCGE #0, Float VCLT #0 */
- gen_op_movl_T1_im(0);
- gen_helper_neon_cge_f32(CPU_T001);
- if (op == 28)
- gen_op_notl_T0();
- break;
- case 26: /* Float VCEQ #0 */
- gen_op_movl_T1_im(0);
- gen_helper_neon_ceq_f32(CPU_T001);
- break;
- case 30: /* Float VABS */
- gen_vfp_abs(0);
- break;
- case 31: /* Float VNEG */
- gen_vfp_neg(0);
- break;
- case 32: /* VSWP */
- NEON_GET_REG(T1, rd, pass);
- NEON_SET_REG(T1, rm, pass);
- break;
- case 33: /* VTRN */
- NEON_GET_REG(T1, rd, pass);
- switch (size) {
- case 0: gen_helper_neon_trn_u8(); break;
- case 1: gen_helper_neon_trn_u16(); break;
- case 2: abort();
- default: return 1;
- }
- NEON_SET_REG(T1, rm, pass);
- break;
- case 56: /* Integer VRECPE */
- gen_helper_recpe_u32(cpu_T[0], cpu_T[0], cpu_env);
- break;
- case 57: /* Integer VRSQRTE */
- gen_helper_rsqrte_u32(cpu_T[0], cpu_T[0], cpu_env);
- break;
- case 58: /* Float VRECPE */
- gen_helper_recpe_f32(cpu_F0s, cpu_F0s, cpu_env);
- break;
- case 59: /* Float VRSQRTE */
- gen_helper_rsqrte_f32(cpu_F0s, cpu_F0s, cpu_env);
- break;
- case 60: /* VCVT.F32.S32 */
- gen_vfp_tosiz(0);
- break;
- case 61: /* VCVT.F32.U32 */
- gen_vfp_touiz(0);
- break;
- case 62: /* VCVT.S32.F32 */
- gen_vfp_sito(0);
- break;
- case 63: /* VCVT.U32.F32 */
- gen_vfp_uito(0);
- break;
- default:
- /* Reserved: 21, 29, 39-56 */
- return 1;
- }
- if (op == 30 || op == 31 || op >= 58) {
- tcg_gen_st_f32(cpu_F0s, cpu_env,
- neon_reg_offset(rd, pass));
- } else {
- NEON_SET_REG(T0, rd, pass);
- }
- }
- break;
- }
- } else if ((insn & (1 << 10)) == 0) {
- /* VTBL, VTBX. */
- n = (insn >> 5) & 0x18;
- if (insn & (1 << 6)) {
- tmp = neon_load_reg(rd, 0);
- } else {
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, 0);
- }
- tmp2 = neon_load_reg(rm, 0);
- gen_helper_neon_tbl(tmp2, tmp2, tmp, tcg_const_i32(rn),
- tcg_const_i32(n));
- if (insn & (1 << 6)) {
- tmp = neon_load_reg(rd, 1);
- } else {
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, 0);
- }
- tmp3 = neon_load_reg(rm, 1);
- gen_helper_neon_tbl(tmp3, tmp3, tmp, tcg_const_i32(rn),
- tcg_const_i32(n));
- neon_store_reg(rd, 0, tmp2);
- neon_store_reg(rd, 1, tmp2);
- } else if ((insn & 0x380) == 0) {
- /* VDUP */
- if (insn & (1 << 19)) {
- NEON_SET_REG(T0, rm, 1);
- } else {
- NEON_SET_REG(T0, rm, 0);
- }
- if (insn & (1 << 16)) {
- gen_neon_dup_u8(cpu_T[0], ((insn >> 17) & 3) * 8);
- } else if (insn & (1 << 17)) {
- if ((insn >> 18) & 1)
- gen_neon_dup_high16(cpu_T[0]);
- else
- gen_neon_dup_low16(cpu_T[0]);
- }
- for (pass = 0; pass < (q ? 4 : 2); pass++) {
- NEON_SET_REG(T0, rd, pass);
- }
- } else {
- return 1;
- }
- }
- }
- return 0;
-}
-
-static int disas_coproc_insn(CPUState * env, DisasContext *s, uint32_t insn)
-{
- int cpnum;
-
- cpnum = (insn >> 8) & 0xf;
- if (arm_feature(env, ARM_FEATURE_XSCALE)
- && ((env->cp15.c15_cpar ^ 0x3fff) & (1 << cpnum)))
- return 1;
-
- switch (cpnum) {
- case 0:
- case 1:
- if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
- return disas_iwmmxt_insn(env, s, insn);
- } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
- return disas_dsp_insn(env, s, insn);
- }
- return 1;
- case 10:
- case 11:
- return disas_vfp_insn (env, s, insn);
- case 15:
- return disas_cp15_insn (env, s, insn);
- default:
- /* Unknown coprocessor. See if the board has hooked it. */
- return disas_cp_insn (env, s, insn);
- }
-}
-
-
-/* Store a 64-bit value to a register pair. Clobbers val. */
-static void gen_storeq_reg(DisasContext *s, int rlow, int rhigh, TCGv val)
-{
- TCGv tmp;
- tmp = new_tmp();
- tcg_gen_trunc_i64_i32(tmp, val);
- store_reg(s, rlow, tmp);
- tmp = new_tmp();
- tcg_gen_shri_i64(val, val, 32);
- tcg_gen_trunc_i64_i32(tmp, val);
- store_reg(s, rhigh, tmp);
-}
-
-/* load a 32-bit value from a register and perform a 64-bit accumulate. */
-static void gen_addq_lo(DisasContext *s, TCGv val, int rlow)
-{
- TCGv tmp;
- TCGv tmp2;
-
- /* Load 64-bit value rd:rn. */
- tmp = tcg_temp_new(TCG_TYPE_I64);
- tmp2 = load_reg(s, rlow);
- tcg_gen_extu_i32_i64(tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_add_i64(val, val, tmp);
-}
-
-/* load and add a 64-bit value from a register pair. */
-static void gen_addq(DisasContext *s, TCGv val, int rlow, int rhigh)
-{
- TCGv tmp;
- TCGv tmp2;
-
- /* Load 64-bit value rd:rn. */
- tmp = tcg_temp_new(TCG_TYPE_I64);
- tmp2 = load_reg(s, rhigh);
- tcg_gen_extu_i32_i64(tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_shli_i64(tmp, tmp, 32);
- tcg_gen_add_i64(val, val, tmp);
-
- tmp2 = load_reg(s, rlow);
- tcg_gen_extu_i32_i64(tmp, tmp2);
- dead_tmp(tmp2);
- tcg_gen_add_i64(val, val, tmp);
-}
-
-/* Set N and Z flags from a 64-bit value. */
-static void gen_logicq_cc(TCGv val)
-{
- TCGv tmp = new_tmp();
- gen_helper_logicq_cc(tmp, val);
- gen_logic_CC(tmp);
- dead_tmp(tmp);
-}
-
-static void disas_arm_insn(CPUState * env, DisasContext *s)
-{
- unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh;
- TCGv tmp;
- TCGv tmp2;
- TCGv tmp3;
- TCGv addr;
-#ifdef CONFIG_TRACE
- int ticks = 0;
-#endif
-
- insn = ldl_code(s->pc);
-#ifdef CONFIG_TRACE
- if (tracing) {
- trace_add_insn(insn);
- ticks = get_insn_ticks_arm(insn);
- gen_helper_traceInsn();
- }
-#endif
- s->pc += 4;
-
- /* M variants do not implement ARM mode. */
- if (IS_M(env))
- goto illegal_op;
- cond = insn >> 28;
- if (cond == 0xf){
-#ifdef CONFIG_TRACE
- if (tracing) {
- gen_traceTicks(ticks);
- }
-#endif
- /* Unconditional instructions. */
- if (((insn >> 25) & 7) == 1) {
- /* NEON Data processing. */
- if (!arm_feature(env, ARM_FEATURE_NEON))
- goto illegal_op;
-
- if (disas_neon_data_insn(env, s, insn))
- goto illegal_op;
- return;
- }
- if ((insn & 0x0f100000) == 0x04000000) {
- /* NEON load/store. */
- if (!arm_feature(env, ARM_FEATURE_NEON))
- goto illegal_op;
-
- if (disas_neon_ls_insn(env, s, insn))
- goto illegal_op;
- return;
- }
- if ((insn & 0x0d70f000) == 0x0550f000)
- return; /* PLD */
- else if ((insn & 0x0ffffdff) == 0x01010000) {
- ARCH(6);
- /* setend */
- if (insn & (1 << 9)) {
- /* BE8 mode not implemented. */
- goto illegal_op;
- }
- return;
- } else if ((insn & 0x0fffff00) == 0x057ff000) {
- switch ((insn >> 4) & 0xf) {
- case 1: /* clrex */
- ARCH(6K);
- gen_helper_clrex(cpu_env);
- return;
- case 4: /* dsb */
- case 5: /* dmb */
- case 6: /* isb */
- ARCH(7);
- /* We don't emulate caches so these are a no-op. */
- return;
- default:
- goto illegal_op;
- }
- } else if ((insn & 0x0e5fffe0) == 0x084d0500) {
- /* srs */
- uint32_t offset;
- if (IS_USER(s))
- goto illegal_op;
- ARCH(6);
- op1 = (insn & 0x1f);
- if (op1 == (env->uncached_cpsr & CPSR_M)) {
- addr = load_reg(s, 13);
- } else {
- addr = new_tmp();
- gen_helper_get_r13_banked(addr, cpu_env, tcg_const_i32(op1));
- }
- i = (insn >> 23) & 3;
- switch (i) {
- case 0: offset = -4; break; /* DA */
- case 1: offset = -8; break; /* DB */
- case 2: offset = 0; break; /* IA */
- case 3: offset = 4; break; /* IB */
- default: abort();
- }
- if (offset)
- tcg_gen_addi_i32(addr, addr, offset);
- tmp = load_reg(s, 14);
- gen_st32(tmp, addr, 0);
- tmp = new_tmp();
- gen_helper_cpsr_read(tmp);
- tcg_gen_addi_i32(addr, addr, 4);
- gen_st32(tmp, addr, 0);
- if (insn & (1 << 21)) {
- /* Base writeback. */
- switch (i) {
- case 0: offset = -8; break;
- case 1: offset = -4; break;
- case 2: offset = 4; break;
- case 3: offset = 0; break;
- default: abort();
- }
- if (offset)
- tcg_gen_addi_i32(addr, tmp, offset);
- if (op1 == (env->uncached_cpsr & CPSR_M)) {
- gen_movl_reg_T1(s, 13);
- } else {
- gen_helper_set_r13_banked(cpu_env, tcg_const_i32(op1), cpu_T[1]);
- }
- } else {
- dead_tmp(addr);
- }
- } else if ((insn & 0x0e5fffe0) == 0x081d0a00) {
- /* rfe */
- uint32_t offset;
- if (IS_USER(s))
- goto illegal_op;
- ARCH(6);
- rn = (insn >> 16) & 0xf;
- addr = load_reg(s, rn);
- i = (insn >> 23) & 3;
- switch (i) {
- case 0: offset = -4; break; /* DA */
- case 1: offset = -8; break; /* DB */
- case 2: offset = 0; break; /* IA */
- case 3: offset = 4; break; /* IB */
- default: abort();
- }
- if (offset)
- tcg_gen_addi_i32(addr, addr, offset);
- /* Load PC into tmp and CPSR into tmp2. */
- tmp = gen_ld32(addr, 0);
- tcg_gen_addi_i32(addr, addr, 4);
- tmp2 = gen_ld32(addr, 0);
- if (insn & (1 << 21)) {
- /* Base writeback. */
- switch (i) {
- case 0: offset = -8; break;
- case 1: offset = -4; break;
- case 2: offset = 4; break;
- case 3: offset = 0; break;
- default: abort();
- }
- if (offset)
- tcg_gen_addi_i32(addr, addr, offset);
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- gen_rfe(s, tmp, tmp2);
- } else if ((insn & 0x0e000000) == 0x0a000000) {
- /* branch link and change to thumb (blx <offset>) */
- int32_t offset;
-
- val = (uint32_t)s->pc;
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- store_reg(s, 14, tmp);
- /* Sign-extend the 24-bit offset */
- offset = (((int32_t)insn) << 8) >> 8;
- /* offset * 4 + bit24 * 2 + (thumb bit) */
- val += (offset << 2) | ((insn >> 23) & 2) | 1;
- /* pipeline offset */
- val += 4;
- gen_bx_im(s, val);
- return;
- } else if ((insn & 0x0e000f00) == 0x0c000100) {
- if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
- /* iWMMXt register transfer. */
- if (env->cp15.c15_cpar & (1 << 1))
- if (!disas_iwmmxt_insn(env, s, insn))
- return;
- }
- } else if ((insn & 0x0fe00000) == 0x0c400000) {
- /* Coprocessor double register transfer. */
- } else if ((insn & 0x0f000010) == 0x0e000010) {
- /* Additional coprocessor register transfer. */
- } else if ((insn & 0x0ff10020) == 0x01000000) {
- uint32_t mask;
- uint32_t val;
- /* cps (privileged) */
- if (IS_USER(s))
- return;
- mask = val = 0;
- if (insn & (1 << 19)) {
- if (insn & (1 << 8))
- mask |= CPSR_A;
- if (insn & (1 << 7))
- mask |= CPSR_I;
- if (insn & (1 << 6))
- mask |= CPSR_F;
- if (insn & (1 << 18))
- val |= mask;
- }
- if (insn & (1 << 17)) {
- mask |= CPSR_M;
- val |= (insn & 0x1f);
- }
- if (mask) {
- gen_op_movl_T0_im(val);
- gen_set_psr_T0(s, mask, 0);
- }
- return;
- }
- goto illegal_op;
- }
- if (cond != 0xe) {
-#ifdef CONFIG_TRACE
- if (tracing) {
- /* a non-executed conditional instruction takes */
- /* only 1 cycle */
- gen_traceTicks(1);
- ticks -= 1;
- }
-#endif
- /* if not always execute, we generate a conditional jump to
- next instruction */
- s->condlabel = gen_new_label();
- gen_test_cc(cond ^ 1, s->condlabel);
- s->condjmp = 1;
- }
-#ifdef CONFIG_TRACE
- if (tracing && ticks > 0) {
- gen_traceTicks(ticks);
- }
-#endif
- if ((insn & 0x0f900000) == 0x03000000) {
- if ((insn & (1 << 21)) == 0) {
- ARCH(6T2);
- rd = (insn >> 12) & 0xf;
- val = ((insn >> 4) & 0xf000) | (insn & 0xfff);
- if ((insn & (1 << 22)) == 0) {
- /* MOVW */
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- } else {
- /* MOVT */
- tmp = load_reg(s, rd);
- tcg_gen_ext16u_i32(tmp, tmp);
- tcg_gen_ori_i32(tmp, tmp, val << 16);
- }
- store_reg(s, rd, tmp);
- } else {
- if (((insn >> 12) & 0xf) != 0xf)
- goto illegal_op;
- if (((insn >> 16) & 0xf) == 0) {
- gen_nop_hint(s, insn & 0xff);
- } else {
- /* CPSR = immediate */
- val = insn & 0xff;
- shift = ((insn >> 8) & 0xf) * 2;
- if (shift)
- val = (val >> shift) | (val << (32 - shift));
- gen_op_movl_T0_im(val);
- i = ((insn & (1 << 22)) != 0);
- if (gen_set_psr_T0(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i))
- goto illegal_op;
- }
- }
- } else if ((insn & 0x0f900000) == 0x01000000
- && (insn & 0x00000090) != 0x00000090) {
- /* miscellaneous instructions */
- op1 = (insn >> 21) & 3;
- sh = (insn >> 4) & 0xf;
- rm = insn & 0xf;
- switch (sh) {
- case 0x0: /* move program status register */
- if (op1 & 1) {
- /* PSR = reg */
- gen_movl_T0_reg(s, rm);
- i = ((op1 & 2) != 0);
- if (gen_set_psr_T0(s, msr_mask(env, s, (insn >> 16) & 0xf, i), i))
- goto illegal_op;
- } else {
- /* reg = PSR */
- rd = (insn >> 12) & 0xf;
- if (op1 & 2) {
- if (IS_USER(s))
- goto illegal_op;
- tmp = load_cpu_field(spsr);
- } else {
- tmp = new_tmp();
- gen_helper_cpsr_read(tmp);
- }
- store_reg(s, rd, tmp);
- }
- break;
- case 0x1:
- if (op1 == 1) {
- /* branch/exchange thumb (bx). */
- tmp = load_reg(s, rm);
- gen_bx(s, tmp);
- } else if (op1 == 3) {
- /* clz */
- rd = (insn >> 12) & 0xf;
- tmp = load_reg(s, rm);
- gen_helper_clz(tmp, tmp);
- store_reg(s, rd, tmp);
- } else {
- goto illegal_op;
- }
- break;
- case 0x2:
- if (op1 == 1) {
- ARCH(5J); /* bxj */
- /* Trivial implementation equivalent to bx. */
- tmp = load_reg(s, rm);
- gen_bx(s, tmp);
- } else {
- goto illegal_op;
- }
- break;
- case 0x3:
- if (op1 != 1)
- goto illegal_op;
-
- /* branch link/exchange thumb (blx) */
- tmp = load_reg(s, rm);
- tmp2 = new_tmp();
- tcg_gen_movi_i32(tmp2, s->pc);
- store_reg(s, 14, tmp2);
- gen_bx(s, tmp);
- break;
- case 0x5: /* saturating add/subtract */
- rd = (insn >> 12) & 0xf;
- rn = (insn >> 16) & 0xf;
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rn);
- if (op1 & 2)
- gen_helper_double_saturate(tmp2, tmp2);
- if (op1 & 1)
- gen_helper_sub_saturate(tmp, tmp, tmp2);
- else
- gen_helper_add_saturate(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- break;
- case 7: /* bkpt */
- gen_set_condexec(s);
- gen_set_pc_im(s->pc - 4);
- gen_exception(EXCP_BKPT);
- s->is_jmp = DISAS_JUMP;
- break;
- case 0x8: /* signed multiply */
- case 0xa:
- case 0xc:
- case 0xe:
- rs = (insn >> 8) & 0xf;
- rn = (insn >> 12) & 0xf;
- rd = (insn >> 16) & 0xf;
- if (op1 == 1) {
- /* (32 * 16) >> 16 */
- tmp = load_reg(s, rm);
- tmp2 = load_reg(s, rs);
- if (sh & 4)
- tcg_gen_sari_i32(tmp2, tmp2, 16);
- else
- gen_sxth(tmp2);
- tmp2 = gen_muls_i64_i32(tmp, tmp2);
- tcg_gen_shri_i64(tmp2, tmp2, 16);
- tmp = new_tmp();
- tcg_gen_trunc_i64_i32(tmp, tmp2);
- if ((sh & 2) == 0) {
- tmp2 = load_reg(s, rn);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- store_reg(s, rd, tmp);
- } else {
- /* 16 * 16 */
- tmp = load_reg(s, rm);
- tmp2 = load_reg(s, rs);
- gen_mulxy(tmp, tmp2, sh & 2, sh & 4);
- dead_tmp(tmp2);
- if (op1 == 2) {
- tmp2 = tcg_temp_new(TCG_TYPE_I64);
- tcg_gen_ext_i32_i64(tmp2, tmp);
- dead_tmp(tmp);
- gen_addq(s, tmp2, rn, rd);
- gen_storeq_reg(s, rn, rd, tmp2);
- } else {
- if (op1 == 0) {
- tmp2 = load_reg(s, rn);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- store_reg(s, rd, tmp);
- }
- }
- break;
- default:
- goto illegal_op;
- }
- } else if (((insn & 0x0e000000) == 0 &&
- (insn & 0x00000090) != 0x90) ||
- ((insn & 0x0e000000) == (1 << 25))) {
- int set_cc, logic_cc, shiftop;
-
- op1 = (insn >> 21) & 0xf;
- set_cc = (insn >> 20) & 1;
- logic_cc = table_logic_cc[op1] & set_cc;
-
- /* data processing instruction */
- if (insn & (1 << 25)) {
- /* immediate operand */
- val = insn & 0xff;
- shift = ((insn >> 8) & 0xf) * 2;
- if (shift)
- val = (val >> shift) | (val << (32 - shift));
- gen_op_movl_T1_im(val);
- if (logic_cc && shift)
- gen_set_CF_bit31(cpu_T[1]);
- } else {
- /* register */
- rm = (insn) & 0xf;
- gen_movl_T1_reg(s, rm);
- shiftop = (insn >> 5) & 3;
- if (!(insn & (1 << 4))) {
- shift = (insn >> 7) & 0x1f;
- gen_arm_shift_im(cpu_T[1], shiftop, shift, logic_cc);
- } else {
- rs = (insn >> 8) & 0xf;
- tmp = load_reg(s, rs);
- gen_arm_shift_reg(cpu_T[1], shiftop, tmp, logic_cc);
- }
- }
- if (op1 != 0x0f && op1 != 0x0d) {
- rn = (insn >> 16) & 0xf;
- gen_movl_T0_reg(s, rn);
- }
- rd = (insn >> 12) & 0xf;
- switch(op1) {
- case 0x00:
- gen_op_andl_T0_T1();
- gen_movl_reg_T0(s, rd);
- if (logic_cc)
- gen_op_logic_T0_cc();
- break;
- case 0x01:
- gen_op_xorl_T0_T1();
- gen_movl_reg_T0(s, rd);
- if (logic_cc)
- gen_op_logic_T0_cc();
- break;
- case 0x02:
- if (set_cc && rd == 15) {
- /* SUBS r15, ... is used for exception return. */
- if (IS_USER(s))
- goto illegal_op;
- gen_op_subl_T0_T1_cc();
- gen_exception_return(s);
- } else {
- if (set_cc)
- gen_op_subl_T0_T1_cc();
- else
- gen_op_subl_T0_T1();
- gen_movl_reg_T0(s, rd);
- }
- break;
- case 0x03:
- if (set_cc)
- gen_op_rsbl_T0_T1_cc();
- else
- gen_op_rsbl_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 0x04:
- if (set_cc)
- gen_op_addl_T0_T1_cc();
- else
- gen_op_addl_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 0x05:
- if (set_cc)
- gen_op_adcl_T0_T1_cc();
- else
- gen_adc_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 0x06:
- if (set_cc)
- gen_op_sbcl_T0_T1_cc();
- else
- gen_sbc_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 0x07:
- if (set_cc)
- gen_op_rscl_T0_T1_cc();
- else
- gen_rsc_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 0x08:
- if (set_cc) {
- gen_op_andl_T0_T1();
- gen_op_logic_T0_cc();
- }
- break;
- case 0x09:
- if (set_cc) {
- gen_op_xorl_T0_T1();
- gen_op_logic_T0_cc();
- }
- break;
- case 0x0a:
- if (set_cc) {
- gen_op_subl_T0_T1_cc();
- }
- break;
- case 0x0b:
- if (set_cc) {
- gen_op_addl_T0_T1_cc();
- }
- break;
- case 0x0c:
- gen_op_orl_T0_T1();
- gen_movl_reg_T0(s, rd);
- if (logic_cc)
- gen_op_logic_T0_cc();
- break;
- case 0x0d:
- if (logic_cc && rd == 15) {
- /* MOVS r15, ... is used for exception return. */
- if (IS_USER(s))
- goto illegal_op;
- gen_op_movl_T0_T1();
- gen_exception_return(s);
- } else {
- gen_movl_reg_T1(s, rd);
- if (logic_cc)
- gen_op_logic_T1_cc();
- }
- break;
- case 0x0e:
- gen_op_bicl_T0_T1();
- gen_movl_reg_T0(s, rd);
- if (logic_cc)
- gen_op_logic_T0_cc();
- break;
- default:
- case 0x0f:
- gen_op_notl_T1();
- gen_movl_reg_T1(s, rd);
- if (logic_cc)
- gen_op_logic_T1_cc();
- break;
- }
- } else {
- /* other instructions */
- op1 = (insn >> 24) & 0xf;
- switch(op1) {
- case 0x0:
- case 0x1:
- /* multiplies, extra load/stores */
- sh = (insn >> 5) & 3;
- if (sh == 0) {
- if (op1 == 0x0) {
- rd = (insn >> 16) & 0xf;
- rn = (insn >> 12) & 0xf;
- rs = (insn >> 8) & 0xf;
- rm = (insn) & 0xf;
- op1 = (insn >> 20) & 0xf;
- switch (op1) {
- case 0: case 1: case 2: case 3: case 6:
- /* 32 bit mul */
- tmp = load_reg(s, rs);
- tmp2 = load_reg(s, rm);
- tcg_gen_mul_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- if (insn & (1 << 22)) {
- /* Subtract (mls) */
- ARCH(6T2);
- tmp2 = load_reg(s, rn);
- tcg_gen_sub_i32(tmp, tmp2, tmp);
- dead_tmp(tmp2);
- } else if (insn & (1 << 21)) {
- /* Add */
- tmp2 = load_reg(s, rn);
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- if (insn & (1 << 20))
- gen_logic_CC(tmp);
- store_reg(s, rd, tmp);
- break;
- default:
- /* 64 bit mul */
- tmp = load_reg(s, rs);
- tmp2 = load_reg(s, rm);
- if (insn & (1 << 22))
- tmp = gen_muls_i64_i32(tmp, tmp2);
- else
- tmp = gen_mulu_i64_i32(tmp, tmp2);
- if (insn & (1 << 21)) /* mult accumulate */
- gen_addq(s, tmp, rn, rd);
- if (!(insn & (1 << 23))) { /* double accumulate */
- ARCH(6);
- gen_addq_lo(s, tmp, rn);
- gen_addq_lo(s, tmp, rd);
- }
- if (insn & (1 << 20))
- gen_logicq_cc(tmp);
- gen_storeq_reg(s, rn, rd, tmp);
- break;
- }
- } else {
- rn = (insn >> 16) & 0xf;
- rd = (insn >> 12) & 0xf;
- if (insn & (1 << 23)) {
- /* load/store exclusive */
- gen_movl_T1_reg(s, rn);
- addr = cpu_T[1];
- if (insn & (1 << 20)) {
- gen_helper_mark_exclusive(cpu_env, cpu_T[1]);
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- int label = gen_new_label();
- rm = insn & 0xf;
- gen_helper_test_exclusive(cpu_T[0], cpu_env, addr);
- tcg_gen_brcondi_i32(TCG_COND_NE, cpu_T[0],
- 0, label);
- tmp = load_reg(s,rm);
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- gen_set_label(label);
- gen_movl_reg_T0(s, rd);
- }
- } else {
- /* SWP instruction */
- rm = (insn) & 0xf;
-
- /* ??? This is not really atomic. However we know
- we never have multiple CPUs running in parallel,
- so it is good enough. */
- addr = load_reg(s, rn);
- tmp = load_reg(s, rm);
- if (insn & (1 << 22)) {
- tmp2 = gen_ld8u(addr, IS_USER(s));
- gen_st8(tmp, addr, IS_USER(s));
- } else {
- tmp2 = gen_ld32(addr, IS_USER(s));
- gen_st32(tmp, addr, IS_USER(s));
- }
- dead_tmp(addr);
- store_reg(s, rd, tmp2);
- }
- }
- } else {
- int address_offset;
- int load;
- /* Misc load/store */
- rn = (insn >> 16) & 0xf;
- rd = (insn >> 12) & 0xf;
- addr = load_reg(s, rn);
- if (insn & (1 << 24))
- gen_add_datah_offset(s, insn, 0, addr);
- address_offset = 0;
- if (insn & (1 << 20)) {
- /* load */
- switch(sh) {
- case 1:
- tmp = gen_ld16u(addr, IS_USER(s));
- break;
- case 2:
- tmp = gen_ld8s(addr, IS_USER(s));
- break;
- default:
- case 3:
- tmp = gen_ld16s(addr, IS_USER(s));
- break;
- }
- load = 1;
- } else if (sh & 2) {
- /* doubleword */
- if (sh & 1) {
- /* store */
- tmp = load_reg(s, rd);
- gen_st32(tmp, addr, IS_USER(s));
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = load_reg(s, rd + 1);
- gen_st32(tmp, addr, IS_USER(s));
- load = 0;
- } else {
- /* load */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = gen_ld32(addr, IS_USER(s));
- rd++;
- load = 1;
- }
- address_offset = -4;
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_st16(tmp, addr, IS_USER(s));
- load = 0;
- }
- /* Perform base writeback before the loaded value to
- ensure correct behavior with overlapping index registers.
- ldrd with base writeback is is undefined if the
- destination and index registers overlap. */
- if (!(insn & (1 << 24))) {
- gen_add_datah_offset(s, insn, address_offset, addr);
- store_reg(s, rn, addr);
- } else if (insn & (1 << 21)) {
- if (address_offset)
- tcg_gen_addi_i32(addr, addr, address_offset);
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- if (load) {
- /* Complete the load. */
- store_reg(s, rd, tmp);
- }
- }
- break;
- case 0x4:
- case 0x5:
- goto do_ldst;
- case 0x6:
- case 0x7:
- if (insn & (1 << 4)) {
- ARCH(6);
- /* Armv6 Media instructions. */
- rm = insn & 0xf;
- rn = (insn >> 16) & 0xf;
- rd = (insn >> 12) & 0xf;
- rs = (insn >> 8) & 0xf;
- switch ((insn >> 23) & 3) {
- case 0: /* Parallel add/subtract. */
- op1 = (insn >> 20) & 7;
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- sh = (insn >> 5) & 7;
- if ((op1 & 3) == 0 || sh == 5 || sh == 6)
- goto illegal_op;
- gen_arm_parallel_addsub(op1, sh, tmp, tmp2);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- break;
- case 1:
- if ((insn & 0x00700020) == 0) {
- /* Halfword pack. */
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- shift = (insn >> 7) & 0x1f;
- if (insn & (1 << 6)) {
- /* pkhtb */
- if (shift == 0)
- shift = 31;
- tcg_gen_sari_i32(tmp2, tmp2, shift);
- tcg_gen_andi_i32(tmp, tmp, 0xffff0000);
- tcg_gen_ext16u_i32(tmp2, tmp2);
- } else {
- /* pkhbt */
- if (shift)
- tcg_gen_shli_i32(tmp2, tmp2, shift);
- tcg_gen_ext16u_i32(tmp, tmp);
- tcg_gen_andi_i32(tmp2, tmp2, 0xffff0000);
- }
- tcg_gen_or_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- } else if ((insn & 0x00200020) == 0x00200000) {
- /* [us]sat */
- tmp = load_reg(s, rm);
- shift = (insn >> 7) & 0x1f;
- if (insn & (1 << 6)) {
- if (shift == 0)
- shift = 31;
- tcg_gen_sari_i32(tmp, tmp, shift);
- } else {
- tcg_gen_shli_i32(tmp, tmp, shift);
- }
- sh = (insn >> 16) & 0x1f;
- if (sh != 0) {
- if (insn & (1 << 22))
- gen_helper_usat(tmp, tmp, tcg_const_i32(sh));
- else
- gen_helper_ssat(tmp, tmp, tcg_const_i32(sh));
- }
- store_reg(s, rd, tmp);
- } else if ((insn & 0x00300fe0) == 0x00200f20) {
- /* [us]sat16 */
- tmp = load_reg(s, rm);
- sh = (insn >> 16) & 0x1f;
- if (sh != 0) {
- if (insn & (1 << 22))
- gen_helper_usat16(tmp, tmp, tcg_const_i32(sh));
- else
- gen_helper_ssat16(tmp, tmp, tcg_const_i32(sh));
- }
- store_reg(s, rd, tmp);
- } else if ((insn & 0x00700fe0) == 0x00000fa0) {
- /* Select bytes. */
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- tmp3 = new_tmp();
- tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE));
- gen_helper_sel_flags(tmp, tmp3, tmp, tmp2);
- dead_tmp(tmp3);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- } else if ((insn & 0x000003e0) == 0x00000060) {
- tmp = load_reg(s, rm);
- shift = (insn >> 10) & 3;
- /* ??? In many cases it's not neccessary to do a
- rotate, a shift is sufficient. */
- if (shift != 0)
- tcg_gen_rori_i32(tmp, tmp, shift * 8);
- op1 = (insn >> 20) & 7;
- switch (op1) {
- case 0: gen_sxtb16(tmp); break;
- case 2: gen_sxtb(tmp); break;
- case 3: gen_sxth(tmp); break;
- case 4: gen_uxtb16(tmp); break;
- case 6: gen_uxtb(tmp); break;
- case 7: gen_uxth(tmp); break;
- default: goto illegal_op;
- }
- if (rn != 15) {
- tmp2 = load_reg(s, rn);
- if ((op1 & 3) == 0) {
- gen_add16(tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- }
- store_reg(s, rd, tmp);
- } else if ((insn & 0x003f0f60) == 0x003f0f20) {
- /* rev */
- tmp = load_reg(s, rm);
- if (insn & (1 << 22)) {
- if (insn & (1 << 7)) {
- gen_revsh(tmp);
- } else {
- ARCH(6T2);
- gen_helper_rbit(tmp, tmp);
- }
- } else {
- if (insn & (1 << 7))
- gen_rev16(tmp);
- else
- tcg_gen_bswap_i32(tmp, tmp);
- }
- store_reg(s, rd, tmp);
- } else {
- goto illegal_op;
- }
- break;
- case 2: /* Multiplies (Type 3). */
- tmp = load_reg(s, rm);
- tmp2 = load_reg(s, rs);
- if (insn & (1 << 20)) {
- /* Signed multiply most significant [accumulate]. */
- tmp2 = gen_muls_i64_i32(tmp, tmp2);
- if (insn & (1 << 5))
- tcg_gen_addi_i64(tmp2, tmp2, 0x80000000u);
- tcg_gen_shri_i64(tmp2, tmp2, 32);
- tmp = new_tmp();
- tcg_gen_trunc_i64_i32(tmp, tmp2);
- if (rn != 15) {
- tmp2 = load_reg(s, rn);
- if (insn & (1 << 6)) {
- tcg_gen_sub_i32(tmp, tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- }
- dead_tmp(tmp2);
- }
- store_reg(s, rd, tmp);
- } else {
- if (insn & (1 << 5))
- gen_swap_half(tmp2);
- gen_smul_dual(tmp, tmp2);
- /* This addition cannot overflow. */
- if (insn & (1 << 6)) {
- tcg_gen_sub_i32(tmp, tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- }
- dead_tmp(tmp2);
- if (insn & (1 << 22)) {
- /* smlald, smlsld */
- tmp2 = tcg_temp_new(TCG_TYPE_I64);
- tcg_gen_ext_i32_i64(tmp2, tmp);
- dead_tmp(tmp);
- gen_addq(s, tmp2, rd, rn);
- gen_storeq_reg(s, rd, rn, tmp2);
- } else {
- /* smuad, smusd, smlad, smlsd */
- if (rd != 15)
- {
- tmp2 = load_reg(s, rd);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- store_reg(s, rn, tmp);
- }
- }
- break;
- case 3:
- op1 = ((insn >> 17) & 0x38) | ((insn >> 5) & 7);
- switch (op1) {
- case 0: /* Unsigned sum of absolute differences. */
- ARCH(6);
- tmp = load_reg(s, rm);
- tmp2 = load_reg(s, rs);
- gen_helper_usad8(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- if (rn != 15) {
- tmp2 = load_reg(s, rn);
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- store_reg(s, rd, tmp);
- break;
- case 0x20: case 0x24: case 0x28: case 0x2c:
- /* Bitfield insert/clear. */
- ARCH(6T2);
- shift = (insn >> 7) & 0x1f;
- i = (insn >> 16) & 0x1f;
- i = i + 1 - shift;
- if (rm == 15) {
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, 0);
- } else {
- tmp = load_reg(s, rm);
- }
- if (i != 32) {
- tmp2 = load_reg(s, rd);
- gen_bfi(tmp, tmp2, tmp, shift, (1u << i) - 1);
- dead_tmp(tmp2);
- }
- store_reg(s, rd, tmp);
- break;
- case 0x12: case 0x16: case 0x1a: case 0x1e: /* sbfx */
- case 0x32: case 0x36: case 0x3a: case 0x3e: /* ubfx */
- tmp = load_reg(s, rm);
- shift = (insn >> 7) & 0x1f;
- i = ((insn >> 16) & 0x1f) + 1;
- if (shift + i > 32)
- goto illegal_op;
- if (i < 32) {
- if (op1 & 0x20) {
- gen_ubfx(tmp, shift, (1u << i) - 1);
- } else {
- gen_sbfx(tmp, shift, i);
- }
- }
- store_reg(s, rd, tmp);
- break;
- default:
- goto illegal_op;
- }
- break;
- }
- break;
- }
- do_ldst:
- /* Check for undefined extension instructions
- * per the ARM Bible IE:
- * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
- */
- sh = (0xf << 20) | (0xf << 4);
- if (op1 == 0x7 && ((insn & sh) == sh))
- {
- goto illegal_op;
- }
- /* load/store byte/word */
- rn = (insn >> 16) & 0xf;
- rd = (insn >> 12) & 0xf;
- tmp2 = load_reg(s, rn);
- i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000);
- if (insn & (1 << 24))
- gen_add_data_offset(s, insn, tmp2);
- if (insn & (1 << 20)) {
- /* load */
- s->is_mem = 1;
- if (insn & (1 << 22)) {
- tmp = gen_ld8u(tmp2, i);
- } else {
- tmp = gen_ld32(tmp2, i);
- }
- } else {
- /* store */
- tmp = load_reg(s, rd);
- if (insn & (1 << 22))
- gen_st8(tmp, tmp2, i);
- else
- gen_st32(tmp, tmp2, i);
- }
- if (!(insn & (1 << 24))) {
- gen_add_data_offset(s, insn, tmp2);
- store_reg(s, rn, tmp2);
- } else if (insn & (1 << 21)) {
- store_reg(s, rn, tmp2);
- } else {
- dead_tmp(tmp2);
- }
- if (insn & (1 << 20)) {
- /* Complete the load. */
- if (rd == 15)
- gen_bx(s, tmp);
- else
- store_reg(s, rd, tmp);
- }
- break;
- case 0x08:
- case 0x09:
- {
- int j, n, user, loaded_base;
- TCGv loaded_var;
- /* load/store multiple words */
- /* XXX: store correct base if write back */
- user = 0;
- if (insn & (1 << 22)) {
- if (IS_USER(s))
- goto illegal_op; /* only usable in supervisor mode */
-
- if ((insn & (1 << 15)) == 0)
- user = 1;
- }
- rn = (insn >> 16) & 0xf;
- addr = load_reg(s, rn);
-
- /* compute total size */
- loaded_base = 0;
- TCGV_UNUSED(loaded_var);
- n = 0;
- for(i=0;i<16;i++) {
- if (insn & (1 << i))
- n++;
- }
- /* XXX: test invalid n == 0 case ? */
- if (insn & (1 << 23)) {
- if (insn & (1 << 24)) {
- /* pre increment */
- tcg_gen_addi_i32(addr, addr, 4);
- } else {
- /* post increment */
- }
- } else {
- if (insn & (1 << 24)) {
- /* pre decrement */
- tcg_gen_addi_i32(addr, addr, -(n * 4));
- } else {
- /* post decrement */
- if (n != 1)
- tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
- }
- }
- j = 0;
- for(i=0;i<16;i++) {
- if (insn & (1 << i)) {
- if (insn & (1 << 20)) {
- /* load */
- tmp = gen_ld32(addr, IS_USER(s));
- if (i == 15) {
- gen_bx(s, tmp);
- } else if (user) {
- gen_helper_set_user_reg(tcg_const_i32(i), tmp);
- dead_tmp(tmp);
- } else if (i == rn) {
- loaded_var = tmp;
- loaded_base = 1;
- } else {
- store_reg(s, i, tmp);
- }
- } else {
- /* store */
- if (i == 15) {
- /* special case: r15 = PC + 8 */
- val = (long)s->pc + 4;
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- } else if (user) {
- tmp = new_tmp();
- gen_helper_get_user_reg(tmp, tcg_const_i32(i));
- } else {
- tmp = load_reg(s, i);
- }
- gen_st32(tmp, addr, IS_USER(s));
- }
- j++;
- /* no need to add after the last transfer */
- if (j != n)
- tcg_gen_addi_i32(addr, addr, 4);
- }
- }
- if (insn & (1 << 21)) {
- /* write back */
- if (insn & (1 << 23)) {
- if (insn & (1 << 24)) {
- /* pre increment */
- } else {
- /* post increment */
- tcg_gen_addi_i32(addr, addr, 4);
- }
- } else {
- if (insn & (1 << 24)) {
- /* pre decrement */
- if (n != 1)
- tcg_gen_addi_i32(addr, addr, -((n - 1) * 4));
- } else {
- /* post decrement */
- tcg_gen_addi_i32(addr, addr, -(n * 4));
- }
- }
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- if (loaded_base) {
- store_reg(s, rn, loaded_var);
- }
- if ((insn & (1 << 22)) && !user) {
- /* Restore CPSR from SPSR. */
- tmp = load_cpu_field(spsr);
- gen_set_cpsr(tmp, 0xffffffff);
- dead_tmp(tmp);
- s->is_jmp = DISAS_UPDATE;
- }
- }
- break;
- case 0xa:
- case 0xb:
- {
- int32_t offset;
-
- /* branch (and link) */
- val = (int32_t)s->pc;
- if (insn & (1 << 24)) {
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, val);
- store_reg(s, 14, tmp);
- }
- offset = (((int32_t)insn << 8) >> 8);
- val += (offset << 2) + 4;
- gen_jmp(s, val);
- }
- break;
- case 0xc:
- case 0xd:
- case 0xe:
- /* Coprocessor. */
- if (disas_coproc_insn(env, s, insn))
- goto illegal_op;
- break;
- case 0xf:
- /* swi */
- gen_set_pc_im(s->pc);
- s->is_jmp = DISAS_SWI;
- break;
- default:
- illegal_op:
- gen_set_condexec(s);
- gen_set_pc_im(s->pc - 4);
- gen_exception(EXCP_UDEF);
- s->is_jmp = DISAS_JUMP;
- break;
- }
- }
-}
-
-/* Return true if this is a Thumb-2 logical op. */
-static int
-thumb2_logic_op(int op)
-{
- return (op < 8);
-}
-
-/* Generate code for a Thumb-2 data processing operation. If CONDS is nonzero
- then set condition code flags based on the result of the operation.
- If SHIFTER_OUT is nonzero then set the carry flag for logical operations
- to the high bit of T1.
- Returns zero if the opcode is valid. */
-
-static int
-gen_thumb2_data_op(DisasContext *s, int op, int conds, uint32_t shifter_out)
-{
- int logic_cc;
-
- logic_cc = 0;
- switch (op) {
- case 0: /* and */
- gen_op_andl_T0_T1();
- logic_cc = conds;
- break;
- case 1: /* bic */
- gen_op_bicl_T0_T1();
- logic_cc = conds;
- break;
- case 2: /* orr */
- gen_op_orl_T0_T1();
- logic_cc = conds;
- break;
- case 3: /* orn */
- gen_op_notl_T1();
- gen_op_orl_T0_T1();
- logic_cc = conds;
- break;
- case 4: /* eor */
- gen_op_xorl_T0_T1();
- logic_cc = conds;
- break;
- case 8: /* add */
- if (conds)
- gen_op_addl_T0_T1_cc();
- else
- gen_op_addl_T0_T1();
- break;
- case 10: /* adc */
- if (conds)
- gen_op_adcl_T0_T1_cc();
- else
- gen_adc_T0_T1();
- break;
- case 11: /* sbc */
- if (conds)
- gen_op_sbcl_T0_T1_cc();
- else
- gen_sbc_T0_T1();
- break;
- case 13: /* sub */
- if (conds)
- gen_op_subl_T0_T1_cc();
- else
- gen_op_subl_T0_T1();
- break;
- case 14: /* rsb */
- if (conds)
- gen_op_rsbl_T0_T1_cc();
- else
- gen_op_rsbl_T0_T1();
- break;
- default: /* 5, 6, 7, 9, 12, 15. */
- return 1;
- }
- if (logic_cc) {
- gen_op_logic_T0_cc();
- if (shifter_out)
- gen_set_CF_bit31(cpu_T[1]);
- }
- return 0;
-}
-
-/* Translate a 32-bit thumb instruction. Returns nonzero if the instruction
- is not legal. */
-static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1)
-{
- uint32_t insn, imm, shift, offset;
- uint32_t rd, rn, rm, rs;
- TCGv tmp;
- TCGv tmp2;
- TCGv tmp3;
- TCGv addr;
- int op;
- int shiftop;
- int conds;
- int logic_cc;
-
- if (!(arm_feature(env, ARM_FEATURE_THUMB2)
- || arm_feature (env, ARM_FEATURE_M))) {
- /* Thumb-1 cores may need to treat bl and blx as a pair of
- 16-bit instructions to get correct prefetch abort behavior. */
- insn = insn_hw1;
- if ((insn & (1 << 12)) == 0) {
- /* Second half of blx. */
- offset = ((insn & 0x7ff) << 1);
- tmp = load_reg(s, 14);
- tcg_gen_addi_i32(tmp, tmp, offset);
- tcg_gen_andi_i32(tmp, tmp, 0xfffffffc);
-
- tmp2 = new_tmp();
- tcg_gen_movi_i32(tmp2, s->pc | 1);
- store_reg(s, 14, tmp2);
- gen_bx(s, tmp);
- return 0;
- }
- if (insn & (1 << 11)) {
- /* Second half of bl. */
- offset = ((insn & 0x7ff) << 1) | 1;
- tmp = load_reg(s, 14);
- tcg_gen_addi_i32(tmp, tmp, offset);
-
- tmp2 = new_tmp();
- tcg_gen_movi_i32(tmp2, s->pc | 1);
- store_reg(s, 14, tmp2);
- gen_bx(s, tmp);
- return 0;
- }
- if ((s->pc & ~TARGET_PAGE_MASK) == 0) {
- /* Instruction spans a page boundary. Implement it as two
- 16-bit instructions in case the second half causes an
- prefetch abort. */
- offset = ((int32_t)insn << 21) >> 9;
- gen_op_movl_T0_im(s->pc + 2 + offset);
- gen_movl_reg_T0(s, 14);
- return 0;
- }
- /* Fall through to 32-bit decode. */
- }
-
- insn = lduw_code(s->pc);
-#ifdef CONFIG_TRACE
- if (tracing) {
- int ticks = get_insn_ticks_thumb(insn);
- trace_add_insn( insn_wrap_thumb(insn), 1 );
- gen_helper_traceInsn();
- gen_traceTicks(ticks);
- }
-#endif
- s->pc += 2;
- insn |= (uint32_t)insn_hw1 << 16;
-
- if ((insn & 0xf800e800) != 0xf000e800) {
- ARCH(6T2);
- }
-
- rn = (insn >> 16) & 0xf;
- rs = (insn >> 12) & 0xf;
- rd = (insn >> 8) & 0xf;
- rm = insn & 0xf;
- switch ((insn >> 25) & 0xf) {
- case 0: case 1: case 2: case 3:
- /* 16-bit instructions. Should never happen. */
- abort();
- case 4:
- if (insn & (1 << 22)) {
- /* Other load/store, table branch. */
- if (insn & 0x01200000) {
- /* Load/store doubleword. */
- if (rn == 15) {
- addr = new_tmp();
- tcg_gen_movi_i32(addr, s->pc & ~3);
- } else {
- addr = load_reg(s, rn);
- }
- offset = (insn & 0xff) * 4;
- if ((insn & (1 << 23)) == 0)
- offset = -offset;
- if (insn & (1 << 24)) {
- tcg_gen_addi_i32(addr, addr, offset);
- offset = 0;
- }
- if (insn & (1 << 20)) {
- /* ldrd */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rs, tmp);
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- /* strd */
- tmp = load_reg(s, rs);
- gen_st32(tmp, addr, IS_USER(s));
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = load_reg(s, rd);
- gen_st32(tmp, addr, IS_USER(s));
- }
- if (insn & (1 << 21)) {
- /* Base writeback. */
- if (rn == 15)
- goto illegal_op;
- tcg_gen_addi_i32(addr, addr, offset - 4);
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- } else if ((insn & (1 << 23)) == 0) {
- /* Load/store exclusive word. */
- gen_movl_T1_reg(s, rn);
- addr = cpu_T[1];
- if (insn & (1 << 20)) {
- gen_helper_mark_exclusive(cpu_env, cpu_T[1]);
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- int label = gen_new_label();
- gen_helper_test_exclusive(cpu_T[0], cpu_env, addr);
- tcg_gen_brcondi_i32(TCG_COND_NE, cpu_T[0],
- 0, label);
- tmp = load_reg(s, rs);
- gen_st32(tmp, cpu_T[1], IS_USER(s));
- gen_set_label(label);
- gen_movl_reg_T0(s, rd);
- }
- } else if ((insn & (1 << 6)) == 0) {
- /* Table Branch. */
- if (rn == 15) {
- addr = new_tmp();
- tcg_gen_movi_i32(addr, s->pc);
- } else {
- addr = load_reg(s, rn);
- }
- tmp = load_reg(s, rm);
- tcg_gen_add_i32(addr, addr, tmp);
- if (insn & (1 << 4)) {
- /* tbh */
- tcg_gen_add_i32(addr, addr, tmp);
- dead_tmp(tmp);
- tmp = gen_ld16u(addr, IS_USER(s));
- } else { /* tbb */
- dead_tmp(tmp);
- tmp = gen_ld8u(addr, IS_USER(s));
- }
- dead_tmp(addr);
- tcg_gen_shli_i32(tmp, tmp, 1);
- tcg_gen_addi_i32(tmp, tmp, s->pc);
- store_reg(s, 15, tmp);
- } else {
- /* Load/store exclusive byte/halfword/doubleword. */
- /* ??? These are not really atomic. However we know
- we never have multiple CPUs running in parallel,
- so it is good enough. */
- op = (insn >> 4) & 0x3;
- /* Must use a global reg for the address because we have
- a conditional branch in the store instruction. */
- gen_movl_T1_reg(s, rn);
- addr = cpu_T[1];
- if (insn & (1 << 20)) {
- gen_helper_mark_exclusive(cpu_env, addr);
- switch (op) {
- case 0:
- tmp = gen_ld8u(addr, IS_USER(s));
- break;
- case 1:
- tmp = gen_ld16u(addr, IS_USER(s));
- break;
- case 3:
- tmp = gen_ld32(addr, IS_USER(s));
- tcg_gen_addi_i32(addr, addr, 4);
- tmp2 = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp2);
- break;
- default:
- goto illegal_op;
- }
- store_reg(s, rs, tmp);
- } else {
- int label = gen_new_label();
- /* Must use a global that is not killed by the branch. */
- gen_helper_test_exclusive(cpu_T[0], cpu_env, addr);
- tcg_gen_brcondi_i32(TCG_COND_NE, cpu_T[0], 0, label);
- tmp = load_reg(s, rs);
- switch (op) {
- case 0:
- gen_st8(tmp, addr, IS_USER(s));
- break;
- case 1:
- gen_st16(tmp, addr, IS_USER(s));
- break;
- case 3:
- gen_st32(tmp, addr, IS_USER(s));
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = load_reg(s, rd);
- gen_st32(tmp, addr, IS_USER(s));
- break;
- default:
- goto illegal_op;
- }
- gen_set_label(label);
- gen_movl_reg_T0(s, rm);
- }
- }
- } else {
- /* Load/store multiple, RFE, SRS. */
- if (((insn >> 23) & 1) == ((insn >> 24) & 1)) {
- /* Not available in user mode. */
- if (IS_USER(s))
- goto illegal_op;
- if (insn & (1 << 20)) {
- /* rfe */
- addr = load_reg(s, rn);
- if ((insn & (1 << 24)) == 0)
- tcg_gen_addi_i32(addr, addr, -8);
- /* Load PC into tmp and CPSR into tmp2. */
- tmp = gen_ld32(addr, 0);
- tcg_gen_addi_i32(addr, addr, 4);
- tmp2 = gen_ld32(addr, 0);
- if (insn & (1 << 21)) {
- /* Base writeback. */
- if (insn & (1 << 24)) {
- tcg_gen_addi_i32(addr, addr, 4);
- } else {
- tcg_gen_addi_i32(addr, addr, -4);
- }
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- gen_rfe(s, tmp, tmp2);
- } else {
- /* srs */
- op = (insn & 0x1f);
- if (op == (env->uncached_cpsr & CPSR_M)) {
- addr = load_reg(s, 13);
- } else {
- addr = new_tmp();
- gen_helper_get_r13_banked(addr, cpu_env, tcg_const_i32(op));
- }
- if ((insn & (1 << 24)) == 0) {
- tcg_gen_addi_i32(addr, addr, -8);
- }
- tmp = load_reg(s, 14);
- gen_st32(tmp, addr, 0);
- tcg_gen_addi_i32(addr, addr, 4);
- tmp = new_tmp();
- gen_helper_cpsr_read(tmp);
- gen_st32(tmp, addr, 0);
- if (insn & (1 << 21)) {
- if ((insn & (1 << 24)) == 0) {
- tcg_gen_addi_i32(addr, addr, -4);
- } else {
- tcg_gen_addi_i32(addr, addr, 4);
- }
- if (op == (env->uncached_cpsr & CPSR_M)) {
- store_reg(s, 13, addr);
- } else {
- gen_helper_set_r13_banked(cpu_env,
- tcg_const_i32(op), addr);
- }
- } else {
- dead_tmp(addr);
- }
- }
- } else {
- int i;
- /* Load/store multiple. */
- addr = load_reg(s, rn);
- offset = 0;
- for (i = 0; i < 16; i++) {
- if (insn & (1 << i))
- offset += 4;
- }
- if (insn & (1 << 24)) {
- tcg_gen_addi_i32(addr, addr, -offset);
- }
-
- for (i = 0; i < 16; i++) {
- if ((insn & (1 << i)) == 0)
- continue;
- if (insn & (1 << 20)) {
- /* Load. */
- tmp = gen_ld32(addr, IS_USER(s));
- if (i == 15) {
- gen_bx(s, tmp);
- } else {
- store_reg(s, i, tmp);
- }
- } else {
- /* Store. */
- tmp = load_reg(s, i);
- gen_st32(tmp, addr, IS_USER(s));
- }
- tcg_gen_addi_i32(addr, addr, 4);
- }
- if (insn & (1 << 21)) {
- /* Base register writeback. */
- if (insn & (1 << 24)) {
- tcg_gen_addi_i32(addr, addr, -offset);
- }
- /* Fault if writeback register is in register list. */
- if (insn & (1 << rn))
- goto illegal_op;
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- }
- }
- break;
- case 5: /* Data processing register constant shift. */
- if (rn == 15)
- gen_op_movl_T0_im(0);
- else
- gen_movl_T0_reg(s, rn);
- gen_movl_T1_reg(s, rm);
- op = (insn >> 21) & 0xf;
- shiftop = (insn >> 4) & 3;
- shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c);
- conds = (insn & (1 << 20)) != 0;
- logic_cc = (conds && thumb2_logic_op(op));
- gen_arm_shift_im(cpu_T[1], shiftop, shift, logic_cc);
- if (gen_thumb2_data_op(s, op, conds, 0))
- goto illegal_op;
- if (rd != 15)
- gen_movl_reg_T0(s, rd);
- break;
- case 13: /* Misc data processing. */
- op = ((insn >> 22) & 6) | ((insn >> 7) & 1);
- if (op < 4 && (insn & 0xf000) != 0xf000)
- goto illegal_op;
- switch (op) {
- case 0: /* Register controlled shift. */
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- if ((insn & 0x70) != 0)
- goto illegal_op;
- op = (insn >> 21) & 3;
- logic_cc = (insn & (1 << 20)) != 0;
- gen_arm_shift_reg(tmp, op, tmp2, logic_cc);
- if (logic_cc)
- gen_logic_CC(tmp);
- store_reg(s, rd, tmp);
- break;
- case 1: /* Sign/zero extend. */
- tmp = load_reg(s, rm);
- shift = (insn >> 4) & 3;
- /* ??? In many cases it's not neccessary to do a
- rotate, a shift is sufficient. */
- if (shift != 0)
- tcg_gen_rori_i32(tmp, tmp, shift * 8);
- op = (insn >> 20) & 7;
- switch (op) {
- case 0: gen_sxth(tmp); break;
- case 1: gen_uxth(tmp); break;
- case 2: gen_sxtb16(tmp); break;
- case 3: gen_uxtb16(tmp); break;
- case 4: gen_sxtb(tmp); break;
- case 5: gen_uxtb(tmp); break;
- default: goto illegal_op;
- }
- if (rn != 15) {
- tmp2 = load_reg(s, rn);
- if ((op >> 1) == 1) {
- gen_add16(tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- }
- store_reg(s, rd, tmp);
- break;
- case 2: /* SIMD add/subtract. */
- op = (insn >> 20) & 7;
- shift = (insn >> 4) & 7;
- if ((op & 3) == 3 || (shift & 3) == 3)
- goto illegal_op;
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- gen_thumb2_parallel_addsub(op, shift, tmp, tmp2);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- break;
- case 3: /* Other data processing. */
- op = ((insn >> 17) & 0x38) | ((insn >> 4) & 7);
- if (op < 4) {
- /* Saturating add/subtract. */
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- if (op & 2)
- gen_helper_double_saturate(tmp, tmp);
- if (op & 1)
- gen_helper_sub_saturate(tmp, tmp2, tmp);
- else
- gen_helper_add_saturate(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- } else {
- tmp = load_reg(s, rn);
- switch (op) {
- case 0x0a: /* rbit */
- gen_helper_rbit(tmp, tmp);
- break;
- case 0x08: /* rev */
- tcg_gen_bswap_i32(tmp, tmp);
- break;
- case 0x09: /* rev16 */
- gen_rev16(tmp);
- break;
- case 0x0b: /* revsh */
- gen_revsh(tmp);
- break;
- case 0x10: /* sel */
- tmp2 = load_reg(s, rm);
- tmp3 = new_tmp();
- tcg_gen_ld_i32(tmp3, cpu_env, offsetof(CPUState, GE));
- gen_helper_sel_flags(tmp, tmp3, tmp, tmp2);
- dead_tmp(tmp3);
- dead_tmp(tmp2);
- break;
- case 0x18: /* clz */
- gen_helper_clz(tmp, tmp);
- break;
- default:
- goto illegal_op;
- }
- }
- store_reg(s, rd, tmp);
- break;
- case 4: case 5: /* 32-bit multiply. Sum of absolute differences. */
- op = (insn >> 4) & 0xf;
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- switch ((insn >> 20) & 7) {
- case 0: /* 32 x 32 -> 32 */
- tcg_gen_mul_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- if (rs != 15) {
- tmp2 = load_reg(s, rs);
- if (op)
- tcg_gen_sub_i32(tmp, tmp2, tmp);
- else
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- break;
- case 1: /* 16 x 16 -> 32 */
- gen_mulxy(tmp, tmp2, op & 2, op & 1);
- dead_tmp(tmp2);
- if (rs != 15) {
- tmp2 = load_reg(s, rs);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- break;
- case 2: /* Dual multiply add. */
- case 4: /* Dual multiply subtract. */
- if (op)
- gen_swap_half(tmp2);
- gen_smul_dual(tmp, tmp2);
- /* This addition cannot overflow. */
- if (insn & (1 << 22)) {
- tcg_gen_sub_i32(tmp, tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- }
- dead_tmp(tmp2);
- if (rs != 15)
- {
- tmp2 = load_reg(s, rs);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- break;
- case 3: /* 32 * 16 -> 32msb */
- if (op)
- tcg_gen_sari_i32(tmp2, tmp2, 16);
- else
- gen_sxth(tmp2);
- tmp2 = gen_muls_i64_i32(tmp, tmp2);
- tcg_gen_shri_i64(tmp2, tmp2, 16);
- tmp = new_tmp();
- tcg_gen_trunc_i64_i32(tmp, tmp2);
- if (rs != 15)
- {
- tmp2 = load_reg(s, rs);
- gen_helper_add_setq(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- break;
- case 5: case 6: /* 32 * 32 -> 32msb */
- gen_imull(tmp, tmp2);
- if (insn & (1 << 5)) {
- gen_roundqd(tmp, tmp2);
- dead_tmp(tmp2);
- } else {
- dead_tmp(tmp);
- tmp = tmp2;
- }
- if (rs != 15) {
- tmp2 = load_reg(s, rs);
- if (insn & (1 << 21)) {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- } else {
- tcg_gen_sub_i32(tmp, tmp2, tmp);
- }
- dead_tmp(tmp2);
- }
- break;
- case 7: /* Unsigned sum of absolute differences. */
- gen_helper_usad8(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- if (rs != 15) {
- tmp2 = load_reg(s, rs);
- tcg_gen_add_i32(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- }
- break;
- }
- store_reg(s, rd, tmp);
- break;
- case 6: case 7: /* 64-bit multiply, Divide. */
- op = ((insn >> 4) & 0xf) | ((insn >> 16) & 0x70);
- tmp = load_reg(s, rn);
- tmp2 = load_reg(s, rm);
- if ((op & 0x50) == 0x10) {
- /* sdiv, udiv */
- if (!arm_feature(env, ARM_FEATURE_DIV))
- goto illegal_op;
- if (op & 0x20)
- gen_helper_udiv(tmp, tmp, tmp2);
- else
- gen_helper_sdiv(tmp, tmp, tmp2);
- dead_tmp(tmp2);
- store_reg(s, rd, tmp);
- } else if ((op & 0xe) == 0xc) {
- /* Dual multiply accumulate long. */
- if (op & 1)
- gen_swap_half(tmp2);
- gen_smul_dual(tmp, tmp2);
- if (op & 0x10) {
- tcg_gen_sub_i32(tmp, tmp, tmp2);
- } else {
- tcg_gen_add_i32(tmp, tmp, tmp2);
- }
- dead_tmp(tmp2);
- tmp2 = tcg_temp_new(TCG_TYPE_I64);
- gen_addq(s, tmp, rs, rd);
- gen_storeq_reg(s, rs, rd, tmp);
- } else {
- if (op & 0x20) {
- /* Unsigned 64-bit multiply */
- tmp = gen_mulu_i64_i32(tmp, tmp2);
- } else {
- if (op & 8) {
- /* smlalxy */
- gen_mulxy(tmp, tmp2, op & 2, op & 1);
- dead_tmp(tmp2);
- tmp2 = tcg_temp_new(TCG_TYPE_I64);
- tcg_gen_ext_i32_i64(tmp2, tmp);
- dead_tmp(tmp);
- tmp = tmp2;
- } else {
- /* Signed 64-bit multiply */
- tmp = gen_muls_i64_i32(tmp, tmp2);
- }
- }
- if (op & 4) {
- /* umaal */
- gen_addq_lo(s, tmp, rs);
- gen_addq_lo(s, tmp, rd);
- } else if (op & 0x40) {
- /* 64-bit accumulate. */
- gen_addq(s, tmp, rs, rd);
- }
- gen_storeq_reg(s, rs, rd, tmp);
- }
- break;
- }
- break;
- case 6: case 7: case 14: case 15:
- /* Coprocessor. */
- if (((insn >> 24) & 3) == 3) {
- /* Translate into the equivalent ARM encoding. */
- insn = (insn & 0xe2ffffff) | ((insn & (1 << 28)) >> 4);
- if (disas_neon_data_insn(env, s, insn))
- goto illegal_op;
- } else {
- if (insn & (1 << 28))
- goto illegal_op;
- if (disas_coproc_insn (env, s, insn))
- goto illegal_op;
- }
- break;
- case 8: case 9: case 10: case 11:
- if (insn & (1 << 15)) {
- /* Branches, misc control. */
- if (insn & 0x5000) {
- /* Unconditional branch. */
- /* signextend(hw1[10:0]) -> offset[:12]. */
- offset = ((int32_t)insn << 5) >> 9 & ~(int32_t)0xfff;
- /* hw1[10:0] -> offset[11:1]. */
- offset |= (insn & 0x7ff) << 1;
- /* (~hw2[13, 11] ^ offset[24]) -> offset[23,22]
- offset[24:22] already have the same value because of the
- sign extension above. */
- offset ^= ((~insn) & (1 << 13)) << 10;
- offset ^= ((~insn) & (1 << 11)) << 11;
-
- if (insn & (1 << 14)) {
- /* Branch and link. */
- gen_op_movl_T1_im(s->pc | 1);
- gen_movl_reg_T1(s, 14);
- }
-
- offset += s->pc;
- if (insn & (1 << 12)) {
- /* b/bl */
- gen_jmp(s, offset);
- } else {
- /* blx */
- offset &= ~(uint32_t)2;
- gen_bx_im(s, offset);
- }
- } else if (((insn >> 23) & 7) == 7) {
- /* Misc control */
- if (insn & (1 << 13))
- goto illegal_op;
-
- if (insn & (1 << 26)) {
- /* Secure monitor call (v6Z) */
- goto illegal_op; /* not implemented. */
- } else {
- op = (insn >> 20) & 7;
- switch (op) {
- case 0: /* msr cpsr. */
- if (IS_M(env)) {
- tmp = load_reg(s, rn);
- addr = tcg_const_i32(insn & 0xff);
- gen_helper_v7m_msr(cpu_env, addr, tmp);
- gen_lookup_tb(s);
- break;
- }
- /* fall through */
- case 1: /* msr spsr. */
- if (IS_M(env))
- goto illegal_op;
- gen_movl_T0_reg(s, rn);
- if (gen_set_psr_T0(s,
- msr_mask(env, s, (insn >> 8) & 0xf, op == 1),
- op == 1))
- goto illegal_op;
- break;
- case 2: /* cps, nop-hint. */
- if (((insn >> 8) & 7) == 0) {
- gen_nop_hint(s, insn & 0xff);
- }
- /* Implemented as NOP in user mode. */
- if (IS_USER(s))
- break;
- offset = 0;
- imm = 0;
- if (insn & (1 << 10)) {
- if (insn & (1 << 7))
- offset |= CPSR_A;
- if (insn & (1 << 6))
- offset |= CPSR_I;
- if (insn & (1 << 5))
- offset |= CPSR_F;
- if (insn & (1 << 9))
- imm = CPSR_A | CPSR_I | CPSR_F;
- }
- if (insn & (1 << 8)) {
- offset |= 0x1f;
- imm |= (insn & 0x1f);
- }
- if (offset) {
- gen_op_movl_T0_im(imm);
- gen_set_psr_T0(s, offset, 0);
- }
- break;
- case 3: /* Special control operations. */
- op = (insn >> 4) & 0xf;
- switch (op) {
- case 2: /* clrex */
- gen_helper_clrex(cpu_env);
- break;
- case 4: /* dsb */
- case 5: /* dmb */
- case 6: /* isb */
- /* These execute as NOPs. */
- ARCH(7);
- break;
- default:
- goto illegal_op;
- }
- break;
- case 4: /* bxj */
- /* Trivial implementation equivalent to bx. */
- tmp = load_reg(s, rn);
- gen_bx(s, tmp);
- break;
- case 5: /* Exception return. */
- /* Unpredictable in user mode. */
- goto illegal_op;
- case 6: /* mrs cpsr. */
- tmp = new_tmp();
- if (IS_M(env)) {
- addr = tcg_const_i32(insn & 0xff);
- gen_helper_v7m_mrs(tmp, cpu_env, addr);
- } else {
- gen_helper_cpsr_read(tmp);
- }
- store_reg(s, rd, tmp);
- break;
- case 7: /* mrs spsr. */
- /* Not accessible in user mode. */
- if (IS_USER(s) || IS_M(env))
- goto illegal_op;
- tmp = load_cpu_field(spsr);
- store_reg(s, rd, tmp);
- break;
- }
- }
- } else {
- /* Conditional branch. */
- op = (insn >> 22) & 0xf;
- /* Generate a conditional jump to next instruction. */
- s->condlabel = gen_new_label();
- gen_test_cc(op ^ 1, s->condlabel);
- s->condjmp = 1;
-
- /* offset[11:1] = insn[10:0] */
- offset = (insn & 0x7ff) << 1;
- /* offset[17:12] = insn[21:16]. */
- offset |= (insn & 0x003f0000) >> 4;
- /* offset[31:20] = insn[26]. */
- offset |= ((int32_t)((insn << 5) & 0x80000000)) >> 11;
- /* offset[18] = insn[13]. */
- offset |= (insn & (1 << 13)) << 5;
- /* offset[19] = insn[11]. */
- offset |= (insn & (1 << 11)) << 8;
-
- /* jump to the offset */
- gen_jmp(s, s->pc + offset);
- }
- } else {
- /* Data processing immediate. */
- if (insn & (1 << 25)) {
- if (insn & (1 << 24)) {
- if (insn & (1 << 20))
- goto illegal_op;
- /* Bitfield/Saturate. */
- op = (insn >> 21) & 7;
- imm = insn & 0x1f;
- shift = ((insn >> 6) & 3) | ((insn >> 10) & 0x1c);
- if (rn == 15) {
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, 0);
- } else {
- tmp = load_reg(s, rn);
- }
- switch (op) {
- case 2: /* Signed bitfield extract. */
- imm++;
- if (shift + imm > 32)
- goto illegal_op;
- if (imm < 32)
- gen_sbfx(tmp, shift, imm);
- break;
- case 6: /* Unsigned bitfield extract. */
- imm++;
- if (shift + imm > 32)
- goto illegal_op;
- if (imm < 32)
- gen_ubfx(tmp, shift, (1u << imm) - 1);
- break;
- case 3: /* Bitfield insert/clear. */
- if (imm < shift)
- goto illegal_op;
- imm = imm + 1 - shift;
- if (imm != 32) {
- tmp2 = load_reg(s, rd);
- gen_bfi(tmp, tmp2, tmp, shift, (1u << imm) - 1);
- dead_tmp(tmp2);
- }
- break;
- case 7:
- goto illegal_op;
- default: /* Saturate. */
- if (shift) {
- if (op & 1)
- tcg_gen_sari_i32(tmp, tmp, shift);
- else
- tcg_gen_shli_i32(tmp, tmp, shift);
- }
- tmp2 = tcg_const_i32(imm);
- if (op & 4) {
- /* Unsigned. */
- if ((op & 1) && shift == 0)
- gen_helper_usat16(tmp, tmp, tmp2);
- else
- gen_helper_usat(tmp, tmp, tmp2);
- } else {
- /* Signed. */
- if ((op & 1) && shift == 0)
- gen_helper_ssat16(tmp, tmp, tmp2);
- else
- gen_helper_ssat(tmp, tmp, tmp2);
- }
- break;
- }
- store_reg(s, rd, tmp);
- } else {
- imm = ((insn & 0x04000000) >> 15)
- | ((insn & 0x7000) >> 4) | (insn & 0xff);
- if (insn & (1 << 22)) {
- /* 16-bit immediate. */
- imm |= (insn >> 4) & 0xf000;
- if (insn & (1 << 23)) {
- /* movt */
- tmp = load_reg(s, rd);
- tcg_gen_ext16u_i32(tmp, tmp);
- tcg_gen_ori_i32(tmp, tmp, imm << 16);
- } else {
- /* movw */
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, imm);
- }
- } else {
- /* Add/sub 12-bit immediate. */
- if (rn == 15) {
- offset = s->pc & ~(uint32_t)3;
- if (insn & (1 << 23))
- offset -= imm;
- else
- offset += imm;
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, offset);
- } else {
- tmp = load_reg(s, rn);
- if (insn & (1 << 23))
- tcg_gen_subi_i32(tmp, tmp, imm);
- else
- tcg_gen_addi_i32(tmp, tmp, imm);
- }
- }
- store_reg(s, rd, tmp);
- }
- } else {
- int shifter_out = 0;
- /* modified 12-bit immediate. */
- shift = ((insn & 0x04000000) >> 23) | ((insn & 0x7000) >> 12);
- imm = (insn & 0xff);
- switch (shift) {
- case 0: /* XY */
- /* Nothing to do. */
- break;
- case 1: /* 00XY00XY */
- imm |= imm << 16;
- break;
- case 2: /* XY00XY00 */
- imm |= imm << 16;
- imm <<= 8;
- break;
- case 3: /* XYXYXYXY */
- imm |= imm << 16;
- imm |= imm << 8;
- break;
- default: /* Rotated constant. */
- shift = (shift << 1) | (imm >> 7);
- imm |= 0x80;
- imm = imm << (32 - shift);
- shifter_out = 1;
- break;
- }
- gen_op_movl_T1_im(imm);
- rn = (insn >> 16) & 0xf;
- if (rn == 15)
- gen_op_movl_T0_im(0);
- else
- gen_movl_T0_reg(s, rn);
- op = (insn >> 21) & 0xf;
- if (gen_thumb2_data_op(s, op, (insn & (1 << 20)) != 0,
- shifter_out))
- goto illegal_op;
- rd = (insn >> 8) & 0xf;
- if (rd != 15) {
- gen_movl_reg_T0(s, rd);
- }
- }
- }
- break;
- case 12: /* Load/store single data item. */
- {
- int postinc = 0;
- int writeback = 0;
- int user;
- if ((insn & 0x01100000) == 0x01000000) {
- if (disas_neon_ls_insn(env, s, insn))
- goto illegal_op;
- break;
- }
- user = IS_USER(s);
- if (rn == 15) {
- addr = new_tmp();
- /* PC relative. */
- /* s->pc has already been incremented by 4. */
- imm = s->pc & 0xfffffffc;
- if (insn & (1 << 23))
- imm += insn & 0xfff;
- else
- imm -= insn & 0xfff;
- tcg_gen_movi_i32(addr, imm);
- } else {
- addr = load_reg(s, rn);
- if (insn & (1 << 23)) {
- /* Positive offset. */
- imm = insn & 0xfff;
- tcg_gen_addi_i32(addr, addr, imm);
- } else {
- op = (insn >> 8) & 7;
- imm = insn & 0xff;
- switch (op) {
- case 0: case 8: /* Shifted Register. */
- shift = (insn >> 4) & 0xf;
- if (shift > 3)
- goto illegal_op;
- tmp = load_reg(s, rm);
- if (shift)
- tcg_gen_shli_i32(tmp, tmp, shift);
- tcg_gen_add_i32(addr, addr, tmp);
- dead_tmp(tmp);
- break;
- case 4: /* Negative offset. */
- tcg_gen_addi_i32(addr, addr, -imm);
- break;
- case 6: /* User privilege. */
- tcg_gen_addi_i32(addr, addr, imm);
- user = 1;
- break;
- case 1: /* Post-decrement. */
- imm = -imm;
- /* Fall through. */
- case 3: /* Post-increment. */
- postinc = 1;
- writeback = 1;
- break;
- case 5: /* Pre-decrement. */
- imm = -imm;
- /* Fall through. */
- case 7: /* Pre-increment. */
- tcg_gen_addi_i32(addr, addr, imm);
- writeback = 1;
- break;
- default:
- goto illegal_op;
- }
- }
- }
- op = ((insn >> 21) & 3) | ((insn >> 22) & 4);
- if (insn & (1 << 20)) {
- /* Load. */
- if (rs == 15 && op != 2) {
- if (op & 2)
- goto illegal_op;
- /* Memory hint. Implemented as NOP. */
- } else {
- switch (op) {
- case 0: tmp = gen_ld8u(addr, user); break;
- case 4: tmp = gen_ld8s(addr, user); break;
- case 1: tmp = gen_ld16u(addr, user); break;
- case 5: tmp = gen_ld16s(addr, user); break;
- case 2: tmp = gen_ld32(addr, user); break;
- default: goto illegal_op;
- }
- if (rs == 15) {
- gen_bx(s, tmp);
- } else {
- store_reg(s, rs, tmp);
- }
- }
- } else {
- /* Store. */
- if (rs == 15)
- goto illegal_op;
- tmp = load_reg(s, rs);
- switch (op) {
- case 0: gen_st8(tmp, addr, user); break;
- case 1: gen_st16(tmp, addr, user); break;
- case 2: gen_st32(tmp, addr, user); break;
- default: goto illegal_op;
- }
- }
- if (postinc)
- tcg_gen_addi_i32(addr, addr, imm);
- if (writeback) {
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- }
- break;
- default:
- goto illegal_op;
- }
- return 0;
-illegal_op:
- return 1;
-}
-
-static void disas_thumb_insn(CPUState *env, DisasContext *s)
-{
- uint32_t val, insn, op, rm, rn, rd, shift, cond;
- int32_t offset;
- int i;
- TCGv tmp;
- TCGv tmp2;
- TCGv addr;
-
- if (s->condexec_mask) {
- cond = s->condexec_cond;
- s->condlabel = gen_new_label();
- gen_test_cc(cond ^ 1, s->condlabel);
- s->condjmp = 1;
- }
-
- insn = lduw_code(s->pc);
-#ifdef CONFIG_TRACE
- if (tracing) {
- int ticks = get_insn_ticks_thumb(insn);
- trace_add_insn( insn_wrap_thumb(insn), 1 );
- gen_helper_traceInsn();
- gen_traceTicks(ticks);
- }
-#endif
- s->pc += 2;
-
- switch (insn >> 12) {
- case 0: case 1:
- rd = insn & 7;
- op = (insn >> 11) & 3;
- if (op == 3) {
- /* add/subtract */
- rn = (insn >> 3) & 7;
- gen_movl_T0_reg(s, rn);
- if (insn & (1 << 10)) {
- /* immediate */
- gen_op_movl_T1_im((insn >> 6) & 7);
- } else {
- /* reg */
- rm = (insn >> 6) & 7;
- gen_movl_T1_reg(s, rm);
- }
- if (insn & (1 << 9)) {
- if (s->condexec_mask)
- gen_op_subl_T0_T1();
- else
- gen_op_subl_T0_T1_cc();
- } else {
- if (s->condexec_mask)
- gen_op_addl_T0_T1();
- else
- gen_op_addl_T0_T1_cc();
- }
- gen_movl_reg_T0(s, rd);
- } else {
- /* shift immediate */
- rm = (insn >> 3) & 7;
- shift = (insn >> 6) & 0x1f;
- tmp = load_reg(s, rm);
- gen_arm_shift_im(tmp, op, shift, s->condexec_mask == 0);
- if (!s->condexec_mask)
- gen_logic_CC(tmp);
- store_reg(s, rd, tmp);
- }
- break;
- case 2: case 3:
- /* arithmetic large immediate */
- op = (insn >> 11) & 3;
- rd = (insn >> 8) & 0x7;
- if (op == 0) {
- gen_op_movl_T0_im(insn & 0xff);
- } else {
- gen_movl_T0_reg(s, rd);
- gen_op_movl_T1_im(insn & 0xff);
- }
- switch (op) {
- case 0: /* mov */
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 1: /* cmp */
- gen_op_subl_T0_T1_cc();
- break;
- case 2: /* add */
- if (s->condexec_mask)
- gen_op_addl_T0_T1();
- else
- gen_op_addl_T0_T1_cc();
- break;
- case 3: /* sub */
- if (s->condexec_mask)
- gen_op_subl_T0_T1();
- else
- gen_op_subl_T0_T1_cc();
- break;
- }
- if (op != 1)
- gen_movl_reg_T0(s, rd);
- break;
- case 4:
- if (insn & (1 << 11)) {
- rd = (insn >> 8) & 7;
- /* load pc-relative. Bit 1 of PC is ignored. */
- val = s->pc + 2 + ((insn & 0xff) * 4);
- val &= ~(uint32_t)2;
- addr = new_tmp();
- tcg_gen_movi_i32(addr, val);
- tmp = gen_ld32(addr, IS_USER(s));
- dead_tmp(addr);
- store_reg(s, rd, tmp);
- break;
- }
- if (insn & (1 << 10)) {
- /* data processing extended or blx */
- rd = (insn & 7) | ((insn >> 4) & 8);
- rm = (insn >> 3) & 0xf;
- op = (insn >> 8) & 3;
- switch (op) {
- case 0: /* add */
- gen_movl_T0_reg(s, rd);
- gen_movl_T1_reg(s, rm);
- gen_op_addl_T0_T1();
- gen_movl_reg_T0(s, rd);
- break;
- case 1: /* cmp */
- gen_movl_T0_reg(s, rd);
- gen_movl_T1_reg(s, rm);
- gen_op_subl_T0_T1_cc();
- break;
- case 2: /* mov/cpy */
- gen_movl_T0_reg(s, rm);
- gen_movl_reg_T0(s, rd);
- break;
- case 3:/* branch [and link] exchange thumb register */
- tmp = load_reg(s, rm);
- if (insn & (1 << 7)) {
- val = (uint32_t)s->pc | 1;
- tmp2 = new_tmp();
- tcg_gen_movi_i32(tmp2, val);
- store_reg(s, 14, tmp2);
- }
- gen_bx(s, tmp);
- break;
- }
- break;
- }
-
- /* data processing register */
- rd = insn & 7;
- rm = (insn >> 3) & 7;
- op = (insn >> 6) & 0xf;
- if (op == 2 || op == 3 || op == 4 || op == 7) {
- /* the shift/rotate ops want the operands backwards */
- val = rm;
- rm = rd;
- rd = val;
- val = 1;
- } else {
- val = 0;
- }
-
- if (op == 9) /* neg */
- gen_op_movl_T0_im(0);
- else if (op != 0xf) /* mvn doesn't read its first operand */
- gen_movl_T0_reg(s, rd);
-
- gen_movl_T1_reg(s, rm);
- switch (op) {
- case 0x0: /* and */
- gen_op_andl_T0_T1();
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 0x1: /* eor */
- gen_op_xorl_T0_T1();
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 0x2: /* lsl */
- if (s->condexec_mask) {
- gen_helper_shl(cpu_T[1], cpu_T[1], cpu_T[0]);
- } else {
- gen_helper_shl_cc(cpu_T[1], cpu_T[1], cpu_T[0]);
- gen_op_logic_T1_cc();
- }
- break;
- case 0x3: /* lsr */
- if (s->condexec_mask) {
- gen_helper_shr(cpu_T[1], cpu_T[1], cpu_T[0]);
- } else {
- gen_helper_shr_cc(cpu_T[1], cpu_T[1], cpu_T[0]);
- gen_op_logic_T1_cc();
- }
- break;
- case 0x4: /* asr */
- if (s->condexec_mask) {
- gen_helper_sar(cpu_T[1], cpu_T[1], cpu_T[0]);
- } else {
- gen_helper_sar_cc(cpu_T[1], cpu_T[1], cpu_T[0]);
- gen_op_logic_T1_cc();
- }
- break;
- case 0x5: /* adc */
- if (s->condexec_mask)
- gen_adc_T0_T1();
- else
- gen_op_adcl_T0_T1_cc();
- break;
- case 0x6: /* sbc */
- if (s->condexec_mask)
- gen_sbc_T0_T1();
- else
- gen_op_sbcl_T0_T1_cc();
- break;
- case 0x7: /* ror */
- if (s->condexec_mask) {
- gen_helper_ror(cpu_T[1], cpu_T[1], cpu_T[0]);
- } else {
- gen_helper_ror_cc(cpu_T[1], cpu_T[1], cpu_T[0]);
- gen_op_logic_T1_cc();
- }
- break;
- case 0x8: /* tst */
- gen_op_andl_T0_T1();
- gen_op_logic_T0_cc();
- rd = 16;
- break;
- case 0x9: /* neg */
- if (s->condexec_mask)
- tcg_gen_neg_i32(cpu_T[0], cpu_T[1]);
- else
- gen_op_subl_T0_T1_cc();
- break;
- case 0xa: /* cmp */
- gen_op_subl_T0_T1_cc();
- rd = 16;
- break;
- case 0xb: /* cmn */
- gen_op_addl_T0_T1_cc();
- rd = 16;
- break;
- case 0xc: /* orr */
- gen_op_orl_T0_T1();
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 0xd: /* mul */
- gen_op_mull_T0_T1();
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 0xe: /* bic */
- gen_op_bicl_T0_T1();
- if (!s->condexec_mask)
- gen_op_logic_T0_cc();
- break;
- case 0xf: /* mvn */
- gen_op_notl_T1();
- if (!s->condexec_mask)
- gen_op_logic_T1_cc();
- val = 1;
- rm = rd;
- break;
- }
- if (rd != 16) {
- if (val)
- gen_movl_reg_T1(s, rm);
- else
- gen_movl_reg_T0(s, rd);
- }
- break;
-
- case 5:
- /* load/store register offset. */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- rm = (insn >> 6) & 7;
- op = (insn >> 9) & 7;
- addr = load_reg(s, rn);
- tmp = load_reg(s, rm);
- tcg_gen_add_i32(addr, addr, tmp);
- dead_tmp(tmp);
-
- if (op < 3) /* store */
- tmp = load_reg(s, rd);
-
- switch (op) {
- case 0: /* str */
- gen_st32(tmp, addr, IS_USER(s));
- break;
- case 1: /* strh */
- gen_st16(tmp, addr, IS_USER(s));
- break;
- case 2: /* strb */
- gen_st8(tmp, addr, IS_USER(s));
- break;
- case 3: /* ldrsb */
- tmp = gen_ld8s(addr, IS_USER(s));
- break;
- case 4: /* ldr */
- tmp = gen_ld32(addr, IS_USER(s));
- break;
- case 5: /* ldrh */
- tmp = gen_ld16u(addr, IS_USER(s));
- break;
- case 6: /* ldrb */
- tmp = gen_ld8u(addr, IS_USER(s));
- break;
- case 7: /* ldrsh */
- tmp = gen_ld16s(addr, IS_USER(s));
- break;
- }
- if (op >= 3) /* load */
- store_reg(s, rd, tmp);
- dead_tmp(addr);
- break;
-
- case 6:
- /* load/store word immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 4) & 0x7c;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_st32(tmp, addr, IS_USER(s));
- }
- dead_tmp(addr);
- break;
-
- case 7:
- /* load/store byte immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 6) & 0x1f;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = gen_ld8u(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_st8(tmp, addr, IS_USER(s));
- }
- dead_tmp(addr);
- break;
-
- case 8:
- /* load/store halfword immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 5) & 0x3e;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = gen_ld16u(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_st16(tmp, addr, IS_USER(s));
- }
- dead_tmp(addr);
- break;
-
- case 9:
- /* load/store from stack */
- rd = (insn >> 8) & 7;
- addr = load_reg(s, 13);
- val = (insn & 0xff) * 4;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_st32(tmp, addr, IS_USER(s));
- }
- dead_tmp(addr);
- break;
-
- case 10:
- /* add to high reg */
- rd = (insn >> 8) & 7;
- if (insn & (1 << 11)) {
- /* SP */
- tmp = load_reg(s, 13);
- } else {
- /* PC. bit 1 is ignored. */
- tmp = new_tmp();
- tcg_gen_movi_i32(tmp, (s->pc + 2) & ~(uint32_t)2);
- }
- val = (insn & 0xff) * 4;
- tcg_gen_addi_i32(tmp, tmp, val);
- store_reg(s, rd, tmp);
- break;
-
- case 11:
- /* misc */
- op = (insn >> 8) & 0xf;
- switch (op) {
- case 0:
- /* adjust stack pointer */
- tmp = load_reg(s, 13);
- val = (insn & 0x7f) * 4;
- if (insn & (1 << 7))
- val = -(int32_t)val;
- tcg_gen_addi_i32(tmp, tmp, val);
- store_reg(s, 13, tmp);
- break;
-
- case 2: /* sign/zero extend. */
- ARCH(6);
- rd = insn & 7;
- rm = (insn >> 3) & 7;
- tmp = load_reg(s, rm);
- switch ((insn >> 6) & 3) {
- case 0: gen_sxth(tmp); break;
- case 1: gen_sxtb(tmp); break;
- case 2: gen_uxth(tmp); break;
- case 3: gen_uxtb(tmp); break;
- }
- store_reg(s, rd, tmp);
- break;
- case 4: case 5: case 0xc: case 0xd:
- /* push/pop */
- addr = load_reg(s, 13);
- if (insn & (1 << 8))
- offset = 4;
- else
- offset = 0;
- for (i = 0; i < 8; i++) {
- if (insn & (1 << i))
- offset += 4;
- }
- if ((insn & (1 << 11)) == 0) {
- tcg_gen_addi_i32(addr, addr, -offset);
- }
- for (i = 0; i < 8; i++) {
- if (insn & (1 << i)) {
- if (insn & (1 << 11)) {
- /* pop */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, i, tmp);
- } else {
- /* push */
- tmp = load_reg(s, i);
- gen_st32(tmp, addr, IS_USER(s));
- }
- /* advance to the next address. */
- tcg_gen_addi_i32(addr, addr, 4);
- }
- }
- TCGV_UNUSED(tmp);
- if (insn & (1 << 8)) {
- if (insn & (1 << 11)) {
- /* pop pc */
- tmp = gen_ld32(addr, IS_USER(s));
- /* don't set the pc until the rest of the instruction
- has completed */
- } else {
- /* push lr */
- tmp = load_reg(s, 14);
- gen_st32(tmp, addr, IS_USER(s));
- }
- tcg_gen_addi_i32(addr, addr, 4);
- }
- if ((insn & (1 << 11)) == 0) {
- tcg_gen_addi_i32(addr, addr, -offset);
- }
- /* write back the new stack pointer */
- store_reg(s, 13, addr);
- /* set the new PC value */
- if ((insn & 0x0900) == 0x0900)
- gen_bx(s, tmp);
- break;
-
- case 1: case 3: case 9: case 11: /* czb */
- rm = insn & 7;
- tmp = load_reg(s, rm);
- s->condlabel = gen_new_label();
- s->condjmp = 1;
- if (insn & (1 << 11))
- tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel);
- else
- tcg_gen_brcondi_i32(TCG_COND_NE, tmp, 0, s->condlabel);
- dead_tmp(tmp);
- offset = ((insn & 0xf8) >> 2) | (insn & 0x200) >> 3;
- val = (uint32_t)s->pc + 2;
- val += offset;
- gen_jmp(s, val);
- break;
-
- case 15: /* IT, nop-hint. */
- if ((insn & 0xf) == 0) {
- gen_nop_hint(s, (insn >> 4) & 0xf);
- break;
- }
- /* If Then. */
- s->condexec_cond = (insn >> 4) & 0xe;
- s->condexec_mask = insn & 0x1f;
- /* No actual code generated for this insn, just setup state. */
- break;
-
- case 0xe: /* bkpt */
- gen_set_condexec(s);
- gen_set_pc_im(s->pc - 2);
- gen_exception(EXCP_BKPT);
- s->is_jmp = DISAS_JUMP;
- break;
-
- case 0xa: /* rev */
- ARCH(6);
- rn = (insn >> 3) & 0x7;
- rd = insn & 0x7;
- tmp = load_reg(s, rn);
- switch ((insn >> 6) & 3) {
- case 0: tcg_gen_bswap_i32(tmp, tmp); break;
- case 1: gen_rev16(tmp); break;
- case 3: gen_revsh(tmp); break;
- default: goto illegal_op;
- }
- store_reg(s, rd, tmp);
- break;
-
- case 6: /* cps */
- ARCH(6);
- if (IS_USER(s))
- break;
- if (IS_M(env)) {
- tmp = tcg_const_i32((insn & (1 << 4)) != 0);
- /* PRIMASK */
- if (insn & 1) {
- addr = tcg_const_i32(16);
- gen_helper_v7m_msr(cpu_env, addr, tmp);
- }
- /* FAULTMASK */
- if (insn & 2) {
- addr = tcg_const_i32(17);
- gen_helper_v7m_msr(cpu_env, addr, tmp);
- }
- gen_lookup_tb(s);
- } else {
- if (insn & (1 << 4))
- shift = CPSR_A | CPSR_I | CPSR_F;
- else
- shift = 0;
-
- val = ((insn & 7) << 6) & shift;
- gen_op_movl_T0_im(val);
- gen_set_psr_T0(s, shift, 0);
- }
- break;
-
- default:
- goto undef;
- }
- break;
-
- case 12:
- /* load/store multiple */
- rn = (insn >> 8) & 0x7;
- addr = load_reg(s, rn);
- for (i = 0; i < 8; i++) {
- if (insn & (1 << i)) {
- if (insn & (1 << 11)) {
- /* load */
- tmp = gen_ld32(addr, IS_USER(s));
- store_reg(s, i, tmp);
- } else {
- /* store */
- tmp = load_reg(s, i);
- gen_st32(tmp, addr, IS_USER(s));
- }
- /* advance to the next address */
- tcg_gen_addi_i32(addr, addr, 4);
- }
- }
- /* Base register writeback. */
- if ((insn & (1 << rn)) == 0) {
- store_reg(s, rn, addr);
- } else {
- dead_tmp(addr);
- }
- break;
-
- case 13:
- /* conditional branch or swi */
- cond = (insn >> 8) & 0xf;
- if (cond == 0xe)
- goto undef;
-
- if (cond == 0xf) {
- /* swi */
- gen_set_condexec(s);
- gen_set_pc_im(s->pc);
- s->is_jmp = DISAS_SWI;
- break;
- }
- /* generate a conditional jump to next instruction */
- s->condlabel = gen_new_label();
- gen_test_cc(cond ^ 1, s->condlabel);
- s->condjmp = 1;
- gen_movl_T1_reg(s, 15);
-
- /* jump to the offset */
- val = (uint32_t)s->pc + 2;
- offset = ((int32_t)insn << 24) >> 24;
- val += offset << 1;
- gen_jmp(s, val);
- break;
-
- case 14:
- if (insn & (1 << 11)) {
- if (disas_thumb2_insn(env, s, insn))
- goto undef32;
- break;
- }
- /* unconditional branch */
- val = (uint32_t)s->pc;
- offset = ((int32_t)insn << 21) >> 21;
- val += (offset << 1) + 2;
- gen_jmp(s, val);
- break;
-
- case 15:
- if (disas_thumb2_insn(env, s, insn))
- goto undef32;
- break;
- }
- return;
-undef32:
- gen_set_condexec(s);
- gen_set_pc_im(s->pc - 4);
- gen_exception(EXCP_UDEF);
- s->is_jmp = DISAS_JUMP;
- return;
-illegal_op:
-undef:
- gen_set_condexec(s);
- gen_set_pc_im(s->pc - 2);
- gen_exception(EXCP_UDEF);
- s->is_jmp = DISAS_JUMP;
-}
-
-/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
- basic block 'tb'. If search_pc is TRUE, also generate PC
- information for each intermediate instruction. */
-static inline void gen_intermediate_code_internal(CPUState *env,
- TranslationBlock *tb,
- int search_pc)
-{
- DisasContext dc1, *dc = &dc1;
- uint16_t *gen_opc_end;
- int j, lj;
- target_ulong pc_start;
- uint32_t next_page_start;
- int num_insns;
- int max_insns;
-
- /* generate intermediate code */
- num_temps = 0;
- memset(temps, 0, sizeof(temps));
-
- pc_start = tb->pc;
-
- dc->tb = tb;
-
- gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
-
- dc->is_jmp = DISAS_NEXT;
- dc->pc = pc_start;
- dc->singlestep_enabled = env->singlestep_enabled;
- dc->condjmp = 0;
- dc->thumb = env->thumb;
- dc->condexec_mask = (env->condexec_bits & 0xf) << 1;
- dc->condexec_cond = env->condexec_bits >> 4;
- dc->is_mem = 0;
-#if !defined(CONFIG_USER_ONLY)
- if (IS_M(env)) {
- dc->user = ((env->v7m.exception == 0) && (env->v7m.control & 1));
- } else {
- dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
- }
-#endif
- cpu_F0s = tcg_temp_new(TCG_TYPE_I32);
- cpu_F1s = tcg_temp_new(TCG_TYPE_I32);
- cpu_F0d = tcg_temp_new(TCG_TYPE_I64);
- cpu_F1d = tcg_temp_new(TCG_TYPE_I64);
- cpu_V0 = cpu_F0d;
- cpu_V1 = cpu_F1d;
- /* FIXME: cpu_M0 can probably be the same as cpu_V0. */
- cpu_M0 = tcg_temp_new(TCG_TYPE_I64);
- next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
- lj = -1;
- num_insns = 0;
- max_insns = tb->cflags & CF_COUNT_MASK;
- if (max_insns == 0)
- max_insns = CF_COUNT_MASK;
-
- gen_icount_start();
- /* Reset the conditional execution bits immediately. This avoids
- complications trying to do it at the end of the block. */
- if (env->condexec_bits)
- {
- TCGv tmp = new_tmp();
- tcg_gen_movi_i32(tmp, 0);
- store_cpu_field(tmp, condexec_bits);
- }
-#ifdef CONFIG_TRACE
- if (tracing) {
- gen_traceBB(trace_static.bb_num, (target_phys_addr_t)tb );
- trace_bb_start(dc->pc);
- }
-#endif
-
- do {
-#ifdef CONFIG_USER_ONLY
- /* Intercept jump to the magic kernel page. */
- if (dc->pc >= 0xffff0000) {
- /* We always get here via a jump, so know we are not in a
- conditional execution block. */
- gen_exception(EXCP_KERNEL_TRAP);
- dc->is_jmp = DISAS_UPDATE;
- break;
- }
-#else
- if (dc->pc >= 0xfffffff0 && IS_M(env)) {
- /* We always get here via a jump, so know we are not in a
- conditional execution block. */
- gen_exception(EXCP_EXCEPTION_EXIT);
- dc->is_jmp = DISAS_UPDATE;
- break;
- }
-#endif
-
- if (env->nb_breakpoints > 0) {
- for(j = 0; j < env->nb_breakpoints; j++) {
- if (env->breakpoints[j] == dc->pc) {
- gen_set_condexec(dc);
- gen_set_pc_im(dc->pc);
- gen_exception(EXCP_DEBUG);
- dc->is_jmp = DISAS_JUMP;
- /* Advance PC so that clearing the breakpoint will
- invalidate this TB. */
- dc->pc += 2;
- goto done_generating;
- break;
- }
- }
- }
- if (search_pc) {
- j = gen_opc_ptr - gen_opc_buf;
- if (lj < j) {
- lj++;
- while (lj < j)
- gen_opc_instr_start[lj++] = 0;
- }
- gen_opc_pc[lj] = dc->pc;
- gen_opc_instr_start[lj] = 1;
- gen_opc_icount[lj] = num_insns;
- }
-
- if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
- gen_io_start();
-
- if (env->thumb) {
- disas_thumb_insn(env, dc);
- if (dc->condexec_mask) {
- dc->condexec_cond = (dc->condexec_cond & 0xe)
- | ((dc->condexec_mask >> 4) & 1);
- dc->condexec_mask = (dc->condexec_mask << 1) & 0x1f;
- if (dc->condexec_mask == 0) {
- dc->condexec_cond = 0;
- }
- }
- } else {
- disas_arm_insn(env, dc);
- }
- if (num_temps) {
- fprintf(stderr, "Internal resource leak before %08x\n", dc->pc);
- num_temps = 0;
- }
-
- if (dc->condjmp && !dc->is_jmp) {
- gen_set_label(dc->condlabel);
- dc->condjmp = 0;
- }
- /* Terminate the TB on memory ops if watchpoints are present. */
- /* FIXME: This should be replacd by the deterministic execution
- * IRQ raising bits. */
- if (dc->is_mem && env->nb_watchpoints)
- break;
-
- /* Translation stops when a conditional branch is enoutered.
- * Otherwise the subsequent code could get translated several times.
- * Also stop translation when a page boundary is reached. This
- * ensures prefetch aborts occur at the right place. */
- num_insns ++;
- } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
- !env->singlestep_enabled &&
- dc->pc < next_page_start &&
- num_insns < max_insns);
-
-#ifdef CONFIG_TRACE
- if (tracing) {
- trace_bb_end();
- }
-#endif
-
- if (tb->cflags & CF_LAST_IO) {
- if (dc->condjmp) {
- /* FIXME: This can theoretically happen with self-modifying
- code. */
- cpu_abort(env, "IO on conditional branch instruction");
- }
- gen_io_end();
- }
-
- /* At this stage dc->condjmp will only be set when the skipped
- instruction was a conditional branch or trap, and the PC has
- already been written. */
- if (unlikely(env->singlestep_enabled)) {
- /* Make sure the pc is updated, and raise a debug exception. */
- if (dc->condjmp) {
- gen_set_condexec(dc);
- if (dc->is_jmp == DISAS_SWI) {
- gen_exception(EXCP_SWI);
- } else {
- gen_exception(EXCP_DEBUG);
- }
- gen_set_label(dc->condlabel);
- }
- if (dc->condjmp || !dc->is_jmp) {
- gen_set_pc_im(dc->pc);
- dc->condjmp = 0;
- }
- gen_set_condexec(dc);
- if (dc->is_jmp == DISAS_SWI && !dc->condjmp) {
- gen_exception(EXCP_SWI);
- } else {
- /* FIXME: Single stepping a WFI insn will not halt
- the CPU. */
- gen_exception(EXCP_DEBUG);
- }
- } else {
- /* While branches must always occur at the end of an IT block,
- there are a few other things that can cause us to terminate
- the TB in the middel of an IT block:
- - Exception generating instructions (bkpt, swi, undefined).
- - Page boundaries.
- - Hardware watchpoints.
- Hardware breakpoints have already been handled and skip this code.
- */
- gen_set_condexec(dc);
- switch(dc->is_jmp) {
- case DISAS_NEXT:
- gen_goto_tb(dc, 1, dc->pc);
- break;
- default:
- case DISAS_JUMP:
- case DISAS_UPDATE:
- /* indicate that the hash table must be used to find the next TB */
- tcg_gen_exit_tb(0);
- break;
- case DISAS_TB_JUMP:
- /* nothing more to generate */
- break;
- case DISAS_WFI:
- gen_helper_wfi();
- break;
- case DISAS_SWI:
- gen_exception(EXCP_SWI);
- break;
- }
- if (dc->condjmp) {
- gen_set_label(dc->condlabel);
- gen_set_condexec(dc);
- gen_goto_tb(dc, 1, dc->pc);
- dc->condjmp = 0;
- }
- }
-
-done_generating:
- gen_icount_end(tb, num_insns);
- *gen_opc_ptr = INDEX_op_end;
-
-#ifdef DEBUG_DISAS
- if (loglevel & CPU_LOG_TB_IN_ASM) {
- fprintf(logfile, "----------------\n");
- fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
- target_disas(logfile, pc_start, dc->pc - pc_start, env->thumb);
- fprintf(logfile, "\n");
- }
-#endif
- if (search_pc) {
- j = gen_opc_ptr - gen_opc_buf;
- lj++;
- while (lj <= j)
- gen_opc_instr_start[lj++] = 0;
- } else {
- tb->size = dc->pc - pc_start;
- tb->icount = num_insns;
- }
-}
-
-void gen_intermediate_code(CPUState *env, TranslationBlock *tb)
-{
- gen_intermediate_code_internal(env, tb, 0);
-}
-
-void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
-{
- gen_intermediate_code_internal(env, tb, 1);
-}
-
-static const char *cpu_mode_names[16] = {
- "usr", "fiq", "irq", "svc", "???", "???", "???", "abt",
- "???", "???", "???", "und", "???", "???", "???", "sys"
-};
-
-void cpu_dump_state(CPUState *env, FILE *f,
- int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
- int flags)
-{
- int i;
-#if 0
- union {
- uint32_t i;
- float s;
- } s0, s1;
- CPU_DoubleU d;
- /* ??? This assumes float64 and double have the same layout.
- Oh well, it's only debug dumps. */
- union {
- float64 f64;
- double d;
- } d0;
-#endif
- uint32_t psr;
-
- for(i=0;i<16;i++) {
- cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
- if ((i % 4) == 3)
- cpu_fprintf(f, "\n");
- else
- cpu_fprintf(f, " ");
- }
- psr = cpsr_read(env);
- cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
- psr,
- psr & (1 << 31) ? 'N' : '-',
- psr & (1 << 30) ? 'Z' : '-',
- psr & (1 << 29) ? 'C' : '-',
- psr & (1 << 28) ? 'V' : '-',
- psr & CPSR_T ? 'T' : 'A',
- cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26);
-
-#if 0
- for (i = 0; i < 16; i++) {
- d.d = env->vfp.regs[i];
- s0.i = d.l.lower;
- s1.i = d.l.upper;
- d0.f64 = d.d;
- cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
- i * 2, (int)s0.i, s0.s,
- i * 2 + 1, (int)s1.i, s1.s,
- i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower,
- d0.d);
- }
- cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]);
-#endif
-}
-
-void gen_pc_load(CPUState *env, TranslationBlock *tb,
- unsigned long searched_pc, int pc_pos, void *puc)
-{
- env->regs[15] = gen_opc_pc[pc_pos];
-}
generated by cgit v1.1 at 2025-01-25 04:00:18 +0000