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-rw-r--r--tcg/arm/tcg-target.c1606
1 files changed, 0 insertions, 1606 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
deleted file mode 100644
index 7b6750a..0000000
--- a/tcg/arm/tcg-target.c
+++ /dev/null
@@ -1,1606 +0,0 @@
-/*
- * Tiny Code Generator for QEMU
- *
- * Copyright (c) 2008 Andrzej Zaborowski
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef NDEBUG
-static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
- "%r0",
- "%r1",
- "%r2",
- "%r3",
- "%r4",
- "%r5",
- "%r6",
- "%r7",
- "%r8",
- "%r9",
- "%r10",
- "%r11",
- "%r12",
- "%r13",
- "%r14",
-};
-#endif
-
-static const int tcg_target_reg_alloc_order[] = {
- TCG_REG_R0,
- TCG_REG_R1,
- TCG_REG_R2,
- TCG_REG_R3,
- TCG_REG_R4,
- TCG_REG_R5,
- TCG_REG_R6,
- TCG_REG_R7,
- TCG_REG_R8,
- TCG_REG_R9,
- TCG_REG_R10,
- TCG_REG_R11,
- TCG_REG_R12,
- TCG_REG_R13,
- TCG_REG_R14,
-};
-
-static const int tcg_target_call_iarg_regs[4] = {
- TCG_REG_R0, TCG_REG_R1, TCG_REG_R2, TCG_REG_R3
-};
-static const int tcg_target_call_oarg_regs[2] = {
- TCG_REG_R0, TCG_REG_R1
-};
-
-static void patch_reloc(uint8_t *code_ptr, int type,
- tcg_target_long value, tcg_target_long addend)
-{
- switch (type) {
- case R_ARM_ABS32:
- *(uint32_t *) code_ptr = value;
- break;
-
- case R_ARM_CALL:
- case R_ARM_JUMP24:
- default:
- tcg_abort();
-
- case R_ARM_PC24:
- *(uint32_t *) code_ptr = ((*(uint32_t *) code_ptr) & 0xff000000) |
- (((value - ((tcg_target_long) code_ptr + 8)) >> 2) & 0xffffff);
- break;
- }
-}
-
-/* maximum number of register used for input function arguments */
-static inline int tcg_target_get_call_iarg_regs_count(int flags)
-{
- return 4;
-}
-
-/* parse target specific constraints */
-static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
-{
- const char *ct_str;
-
- ct_str = *pct_str;
- switch (ct_str[0]) {
- case 'r':
-#ifndef CONFIG_SOFTMMU
- case 'd':
- case 'D':
- case 'x':
- case 'X':
-#endif
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- break;
-
-#ifdef CONFIG_SOFTMMU
- /* qemu_ld/st inputs (unless 'X', 'd' or 'D') */
- case 'x':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
- break;
-
- /* qemu_ld64 data_reg */
- case 'd':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r1 is still needed to load data_reg2, so don't use it. */
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
- break;
-
- /* qemu_ld/st64 data_reg2 */
- case 'D':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r0, r1 and optionally r2 will be overwritten by the address
- * and the low word of data, so don't use these. */
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
-# if TARGET_LONG_BITS == 64
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R2);
-# endif
- break;
-
-# if TARGET_LONG_BITS == 64
- /* qemu_ld/st addr_reg2 */
- case 'X':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r0 will be overwritten by the low word of base, so don't use it. */
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
- break;
-# endif
-#endif
-
- case '1':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- break;
-
- case '2':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
- break;
-
- default:
- return -1;
- }
- ct_str++;
- *pct_str = ct_str;
-
- return 0;
-}
-
-/* Test if a constant matches the constraint.
- * TODO: define constraints for:
- *
- * ldr/str offset: between -0xfff and 0xfff
- * ldrh/strh offset: between -0xff and 0xff
- * mov operand2: values represented with x << (2 * y), x < 0x100
- * add, sub, eor...: ditto
- */
-static inline int tcg_target_const_match(tcg_target_long val,
- const TCGArgConstraint *arg_ct)
-{
- int ct;
- ct = arg_ct->ct;
- if (ct & TCG_CT_CONST)
- return 1;
- else
- return 0;
-}
-
-enum arm_data_opc_e {
- ARITH_AND = 0x0,
- ARITH_EOR = 0x1,
- ARITH_SUB = 0x2,
- ARITH_RSB = 0x3,
- ARITH_ADD = 0x4,
- ARITH_ADC = 0x5,
- ARITH_SBC = 0x6,
- ARITH_RSC = 0x7,
- ARITH_TST = 0x8,
- ARITH_CMP = 0xa,
- ARITH_CMN = 0xb,
- ARITH_ORR = 0xc,
- ARITH_MOV = 0xd,
- ARITH_BIC = 0xe,
- ARITH_MVN = 0xf,
-};
-
-#define TO_CPSR(opc) \
- ((opc == ARITH_CMP || opc == ARITH_CMN || opc == ARITH_TST) << 20)
-
-#define SHIFT_IMM_LSL(im) (((im) << 7) | 0x00)
-#define SHIFT_IMM_LSR(im) (((im) << 7) | 0x20)
-#define SHIFT_IMM_ASR(im) (((im) << 7) | 0x40)
-#define SHIFT_IMM_ROR(im) (((im) << 7) | 0x60)
-#define SHIFT_REG_LSL(rs) (((rs) << 8) | 0x10)
-#define SHIFT_REG_LSR(rs) (((rs) << 8) | 0x30)
-#define SHIFT_REG_ASR(rs) (((rs) << 8) | 0x50)
-#define SHIFT_REG_ROR(rs) (((rs) << 8) | 0x70)
-
-enum arm_cond_code_e {
- COND_EQ = 0x0,
- COND_NE = 0x1,
- COND_CS = 0x2, /* Unsigned greater or equal */
- COND_CC = 0x3, /* Unsigned less than */
- COND_MI = 0x4, /* Negative */
- COND_PL = 0x5, /* Zero or greater */
- COND_VS = 0x6, /* Overflow */
- COND_VC = 0x7, /* No overflow */
- COND_HI = 0x8, /* Unsigned greater than */
- COND_LS = 0x9, /* Unsigned less or equal */
- COND_GE = 0xa,
- COND_LT = 0xb,
- COND_GT = 0xc,
- COND_LE = 0xd,
- COND_AL = 0xe,
-};
-
-static const uint8_t tcg_cond_to_arm_cond[10] = {
- [TCG_COND_EQ] = COND_EQ,
- [TCG_COND_NE] = COND_NE,
- [TCG_COND_LT] = COND_LT,
- [TCG_COND_GE] = COND_GE,
- [TCG_COND_LE] = COND_LE,
- [TCG_COND_GT] = COND_GT,
- /* unsigned */
- [TCG_COND_LTU] = COND_CC,
- [TCG_COND_GEU] = COND_CS,
- [TCG_COND_LEU] = COND_LS,
- [TCG_COND_GTU] = COND_HI,
-};
-
-static inline void tcg_out_bx(TCGContext *s, int cond, int rn)
-{
- tcg_out32(s, (cond << 28) | 0x012fff10 | rn);
-}
-
-static inline void tcg_out_b(TCGContext *s, int cond, int32_t offset)
-{
- tcg_out32(s, (cond << 28) | 0x0a000000 |
- (((offset - 8) >> 2) & 0x00ffffff));
-}
-
-static inline void tcg_out_b_noaddr(TCGContext *s, int cond)
-{
-#ifdef HOST_WORDS_BIGENDIAN
- tcg_out8(s, (cond << 4) | 0x0a);
- s->code_ptr += 3;
-#else
- s->code_ptr += 3;
- tcg_out8(s, (cond << 4) | 0x0a);
-#endif
-}
-
-static inline void tcg_out_bl(TCGContext *s, int cond, int32_t offset)
-{
- tcg_out32(s, (cond << 28) | 0x0b000000 |
- (((offset - 8) >> 2) & 0x00ffffff));
-}
-
-static inline void tcg_out_dat_reg(TCGContext *s,
- int cond, int opc, int rd, int rn, int rm, int shift)
-{
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc << 21) | TO_CPSR(opc) |
- (rn << 16) | (rd << 12) | shift | rm);
-}
-
-static inline void tcg_out_dat_reg2(TCGContext *s,
- int cond, int opc0, int opc1, int rd0, int rd1,
- int rn0, int rn1, int rm0, int rm1, int shift)
-{
- if (rd0 == rn1 || rd0 == rm1) {
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
- (rn0 << 16) | (8 << 12) | shift | rm0);
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
- (rn1 << 16) | (rd1 << 12) | shift | rm1);
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- rd0, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
- } else {
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc0 << 21) | (1 << 20) |
- (rn0 << 16) | (rd0 << 12) | shift | rm0);
- tcg_out32(s, (cond << 28) | (0 << 25) | (opc1 << 21) |
- (rn1 << 16) | (rd1 << 12) | shift | rm1);
- }
-}
-
-static inline void tcg_out_dat_imm(TCGContext *s,
- int cond, int opc, int rd, int rn, int im)
-{
- tcg_out32(s, (cond << 28) | (1 << 25) | (opc << 21) | TO_CPSR(opc) |
- (rn << 16) | (rd << 12) | im);
-}
-
-static inline void tcg_out_movi32(TCGContext *s,
- int cond, int rd, int32_t arg)
-{
- int offset = (uint32_t) arg - ((uint32_t) s->code_ptr + 8);
-
- /* TODO: This is very suboptimal, we can easily have a constant
- * pool somewhere after all the instructions. */
-
- if (arg < 0 && arg > -0x100)
- return tcg_out_dat_imm(s, cond, ARITH_MVN, rd, 0, (~arg) & 0xff);
-
- if (offset < 0x100 && offset > -0x100)
- return offset >= 0 ?
- tcg_out_dat_imm(s, cond, ARITH_ADD, rd, 15, offset) :
- tcg_out_dat_imm(s, cond, ARITH_SUB, rd, 15, -offset);
-
- tcg_out_dat_imm(s, cond, ARITH_MOV, rd, 0, arg & 0xff);
- if (arg & 0x0000ff00)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 8) & 0xff) | 0xc00);
- if (arg & 0x00ff0000)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 16) & 0xff) | 0x800);
- if (arg & 0xff000000)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 24) & 0xff) | 0x400);
-}
-
-static inline void tcg_out_mul32(TCGContext *s,
- int cond, int rd, int rs, int rm)
-{
- if (rd != rm)
- tcg_out32(s, (cond << 28) | (rd << 16) | (0 << 12) |
- (rs << 8) | 0x90 | rm);
- else if (rd != rs)
- tcg_out32(s, (cond << 28) | (rd << 16) | (0 << 12) |
- (rm << 8) | 0x90 | rs);
- else {
- tcg_out32(s, (cond << 28) | ( 8 << 16) | (0 << 12) |
- (rs << 8) | 0x90 | rm);
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- rd, 0, 8, SHIFT_IMM_LSL(0));
- }
-}
-
-static inline void tcg_out_umull32(TCGContext *s,
- int cond, int rd0, int rd1, int rs, int rm)
-{
- if (rd0 != rm && rd1 != rm)
- tcg_out32(s, (cond << 28) | 0x800090 |
- (rd1 << 16) | (rd0 << 12) | (rs << 8) | rm);
- else if (rd0 != rs && rd1 != rs)
- tcg_out32(s, (cond << 28) | 0x800090 |
- (rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
- else {
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
- tcg_out32(s, (cond << 28) | 0x800098 |
- (rd1 << 16) | (rd0 << 12) | (rs << 8));
- }
-}
-
-static inline void tcg_out_smull32(TCGContext *s,
- int cond, int rd0, int rd1, int rs, int rm)
-{
- if (rd0 != rm && rd1 != rm)
- tcg_out32(s, (cond << 28) | 0xc00090 |
- (rd1 << 16) | (rd0 << 12) | (rs << 8) | rm);
- else if (rd0 != rs && rd1 != rs)
- tcg_out32(s, (cond << 28) | 0xc00090 |
- (rd1 << 16) | (rd0 << 12) | (rm << 8) | rs);
- else {
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- TCG_REG_R8, 0, rm, SHIFT_IMM_LSL(0));
- tcg_out32(s, (cond << 28) | 0xc00098 |
- (rd1 << 16) | (rd0 << 12) | (rs << 8));
- }
-}
-
-static inline void tcg_out_ld32_12(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x05900000 |
- (rn << 16) | (rd << 12) | (im & 0xfff));
- else
- tcg_out32(s, (cond << 28) | 0x05100000 |
- (rn << 16) | (rd << 12) | ((-im) & 0xfff));
-}
-
-static inline void tcg_out_st32_12(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x05800000 |
- (rn << 16) | (rd << 12) | (im & 0xfff));
- else
- tcg_out32(s, (cond << 28) | 0x05000000 |
- (rn << 16) | (rd << 12) | ((-im) & 0xfff));
-}
-
-static inline void tcg_out_ld32_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07900000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st32_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07800000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-/* Register pre-increment with base writeback. */
-static inline void tcg_out_ld32_rwb(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07b00000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st32_rwb(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07a00000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_ld16u_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01d000b0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x015000b0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_st16u_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01c000b0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x014000b0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_ld16u_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x019000b0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st16u_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x018000b0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_ld16s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01d000f0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x015000f0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_st16s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01c000f0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x014000f0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_ld16s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x019000f0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st16s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x018000f0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_ld8_12(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x05d00000 |
- (rn << 16) | (rd << 12) | (im & 0xfff));
- else
- tcg_out32(s, (cond << 28) | 0x05500000 |
- (rn << 16) | (rd << 12) | ((-im) & 0xfff));
-}
-
-static inline void tcg_out_st8_12(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x05c00000 |
- (rn << 16) | (rd << 12) | (im & 0xfff));
- else
- tcg_out32(s, (cond << 28) | 0x05400000 |
- (rn << 16) | (rd << 12) | ((-im) & 0xfff));
-}
-
-static inline void tcg_out_ld8_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07d00000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st8_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x07c00000 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_ld8s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01d000d0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x015000d0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_st8s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01c000d0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x014000d0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
-static inline void tcg_out_ld8s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x019000d0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_st8s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x018000d0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
-static inline void tcg_out_ld32u(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xfff || offset < -0xfff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_ld32_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_ld32_12(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_st32(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xfff || offset < -0xfff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_st32_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_st32_12(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_ld16u(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xff || offset < -0xff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_ld16u_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_ld16u_8(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_ld16s(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xff || offset < -0xff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_ld16s_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_ld16s_8(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_st16u(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xff || offset < -0xff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_st16u_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_st16u_8(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_ld8u(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xfff || offset < -0xfff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_ld8_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_ld8_12(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_ld8s(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xff || offset < -0xff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_ld8s_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_ld8s_8(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_st8u(TCGContext *s, int cond,
- int rd, int rn, int32_t offset)
-{
- if (offset > 0xfff || offset < -0xfff) {
- tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_st8_r(s, cond, rd, rn, TCG_REG_R8);
- } else
- tcg_out_st8_12(s, cond, rd, rn, offset);
-}
-
-static inline void tcg_out_goto(TCGContext *s, int cond, uint32_t addr)
-{
- int32_t val;
-
- val = addr - (tcg_target_long) s->code_ptr;
- if (val - 8 < 0x01fffffd && val - 8 > -0x01fffffd)
- tcg_out_b(s, cond, val);
- else {
-#if 1
- tcg_abort();
-#else
- if (cond == COND_AL) {
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
- tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
- } else {
- tcg_out_movi32(s, cond, TCG_REG_R8, val - 8);
- tcg_out_dat_reg(s, cond, ARITH_ADD,
- 15, 15, TCG_REG_R8, SHIFT_IMM_LSL(0));
- }
-#endif
- }
-}
-
-static inline void tcg_out_call(TCGContext *s, int cond, uint32_t addr)
-{
- int32_t val;
-
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R8, 0, 14, SHIFT_IMM_LSL(0));
-#endif
-
- val = addr - (tcg_target_long) s->code_ptr;
- if (val < 0x01fffffd && val > -0x01fffffd)
- tcg_out_bl(s, cond, val);
- else {
-#if 1
- tcg_abort();
-#else
- if (cond == COND_AL) {
- tcg_out_dat_imm(s, cond, ARITH_ADD, 14, 15, 4);
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
- tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
- } else {
- tcg_out_movi32(s, cond, TCG_REG_R9, addr);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 14, 0, 15);
- tcg_out_bx(s, cond, TCG_REG_R9);
- }
-#endif
- }
-
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
-#endif
-}
-
-static inline void tcg_out_callr(TCGContext *s, int cond, int arg)
-{
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R8, 0, 14, SHIFT_IMM_LSL(0));
-#endif
- /* TODO: on ARMv5 and ARMv6 replace with tcg_out_blx(s, cond, arg); */
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 15, SHIFT_IMM_LSL(0));
- tcg_out_bx(s, cond, arg);
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
-#endif
-}
-
-static inline void tcg_out_goto_label(TCGContext *s, int cond, int label_index)
-{
- TCGLabel *l = &s->labels[label_index];
-
- if (l->has_value)
- tcg_out_goto(s, cond, l->u.value);
- else if (cond == COND_AL) {
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
- tcg_out_reloc(s, s->code_ptr, R_ARM_ABS32, label_index, 31337);
- s->code_ptr += 4;
- } else {
- /* Probably this should be preferred even for COND_AL... */
- tcg_out_reloc(s, s->code_ptr, R_ARM_PC24, label_index, 31337);
- tcg_out_b_noaddr(s, cond);
- }
-}
-
-static void tcg_out_div_helper(TCGContext *s, int cond, const TCGArg *args,
- void *helper_div, void *helper_rem, int shift)
-{
- int div_reg = args[0];
- int rem_reg = args[1];
-
- /* stmdb sp!, { r0 - r3, ip, lr } */
- /* (Note that we need an even number of registers as per EABI) */
- tcg_out32(s, (cond << 28) | 0x092d500f);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, 0, 0, args[2], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 1, 0, args[3], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 2, 0, args[4], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 3, 0, 2, shift);
-
- tcg_out_call(s, cond, (uint32_t) helper_div);
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 0, SHIFT_IMM_LSL(0));
-
- /* ldmia sp, { r0 - r3, fp, lr } */
- tcg_out32(s, (cond << 28) | 0x089d500f);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, 0, 0, args[2], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 1, 0, args[3], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 2, 0, args[4], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 3, 0, 2, shift);
-
- tcg_out_call(s, cond, (uint32_t) helper_rem);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, rem_reg, 0, 0, SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, div_reg, 0, 8, SHIFT_IMM_LSL(0));
-
- /* ldr r0, [sp], #4 */
- if (rem_reg != 0 && div_reg != 0)
- tcg_out32(s, (cond << 28) | 0x04bd0004);
- /* ldr r1, [sp], #4 */
- if (rem_reg != 1 && div_reg != 1)
- tcg_out32(s, (cond << 28) | 0x04bd1004);
- /* ldr r2, [sp], #4 */
- if (rem_reg != 2 && div_reg != 2)
- tcg_out32(s, (cond << 28) | 0x04bd2004);
- /* ldr r3, [sp], #4 */
- if (rem_reg != 3 && div_reg != 3)
- tcg_out32(s, (cond << 28) | 0x04bd3004);
- /* ldr ip, [sp], #4 */
- if (rem_reg != 12 && div_reg != 12)
- tcg_out32(s, (cond << 28) | 0x04bdc004);
- /* ldr lr, [sp], #4 */
- if (rem_reg != 14 && div_reg != 14)
- tcg_out32(s, (cond << 28) | 0x04bde004);
-}
-
-#ifdef CONFIG_SOFTMMU
-
-#include "../../softmmu_defs.h"
-
-static void *qemu_ld_helpers[4] = {
- __ldb_mmu,
- __ldw_mmu,
- __ldl_mmu,
- __ldq_mmu,
-};
-
-static void *qemu_st_helpers[4] = {
- __stb_mmu,
- __stw_mmu,
- __stl_mmu,
- __stq_mmu,
-};
-#endif
-
-#define TLB_SHIFT (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS)
-
-static inline void tcg_out_qemu_ld(TCGContext *s, int cond,
- const TCGArg *args, int opc)
-{
- int addr_reg, data_reg, data_reg2;
-#ifdef CONFIG_SOFTMMU
- int mem_index, s_bits;
-# if TARGET_LONG_BITS == 64
- int addr_reg2;
-# endif
- uint32_t *label_ptr;
-#endif
-
- data_reg = *args++;
- if (opc == 3)
- data_reg2 = *args++;
- else
- data_reg2 = 0; /* surpress warning */
- addr_reg = *args++;
-#ifdef CONFIG_SOFTMMU
-# if TARGET_LONG_BITS == 64
- addr_reg2 = *args++;
-# endif
- mem_index = *args;
- s_bits = opc & 3;
-
- /* Should generate something like the following:
- * shr r8, addr_reg, #TARGET_PAGE_BITS
- * and r0, r8, #(CPU_TLB_SIZE - 1) @ Assumption: CPU_TLB_BITS <= 8
- * add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
- */
-# if CPU_TLB_BITS > 8
-# error
-# endif
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- 8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
- tcg_out_dat_imm(s, COND_AL, ARITH_AND,
- 0, 8, CPU_TLB_SIZE - 1);
- tcg_out_dat_reg(s, COND_AL, ARITH_ADD,
- 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
- /* In the
- * ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_read))]
- * below, the offset is likely to exceed 12 bits if mem_index != 0 and
- * not exceed otherwise, so use an
- * add r0, r0, #(mem_index * sizeof *CPUState.tlb_table)
- * before.
- */
- if (mem_index)
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0,
- (mem_index << (TLB_SHIFT & 1)) |
- ((16 - (TLB_SHIFT >> 1)) << 8));
- tcg_out_ld32_12(s, COND_AL, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addr_read));
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP,
- 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
- /* Check alignment. */
- if (s_bits)
- tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
- 0, addr_reg, (1 << s_bits) - 1);
-# if TARGET_LONG_BITS == 64
- /* XXX: possibly we could use a block data load or writeback in
- * the first access. */
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addr_read) + 4);
- tcg_out_dat_reg(s, COND_EQ, ARITH_CMP,
- 0, 1, addr_reg2, SHIFT_IMM_LSL(0));
-# endif
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addend));
-
- switch (opc) {
- case 0:
- tcg_out_ld8_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 0 | 4:
- tcg_out_ld8s_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 1:
- tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 1 | 4:
- tcg_out_ld16s_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 2:
- default:
- tcg_out_ld32_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 3:
- tcg_out_ld32_rwb(s, COND_EQ, data_reg, 1, addr_reg);
- tcg_out_ld32_12(s, COND_EQ, data_reg2, 1, 4);
- break;
- }
-
- label_ptr = (void *) s->code_ptr;
- tcg_out_b(s, COND_EQ, 8);
-
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 14, SHIFT_IMM_LSL(0));
-# endif
-
- /* TODO: move this code to where the constants pool will be */
- if (addr_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, addr_reg, SHIFT_IMM_LSL(0));
-# if TARGET_LONG_BITS == 32
- tcg_out_dat_imm(s, cond, ARITH_MOV, 1, 0, mem_index);
-# else
- if (addr_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, addr_reg2, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
-# endif
- tcg_out_bl(s, cond, (tcg_target_long) qemu_ld_helpers[s_bits] -
- (tcg_target_long) s->code_ptr);
-
- switch (opc) {
- case 0 | 4:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, 0, SHIFT_IMM_LSL(24));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_ASR(24));
- break;
- case 1 | 4:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, 0, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_ASR(16));
- break;
- case 0:
- case 1:
- case 2:
- default:
- if (data_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_LSL(0));
- break;
- case 3:
- if (data_reg != 0)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_LSL(0));
- if (data_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg2, 0, 1, SHIFT_IMM_LSL(0));
- break;
- }
-
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 8, SHIFT_IMM_LSL(0));
-# endif
-
- *label_ptr += ((void *) s->code_ptr - (void *) label_ptr - 8) >> 2;
-#else
- switch (opc) {
- case 0:
- tcg_out_ld8_12(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 0 | 4:
- tcg_out_ld8s_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 1:
- tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 1 | 4:
- tcg_out_ld16s_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 2:
- default:
- tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 3:
- /* TODO: use block load -
- * check that data_reg2 > data_reg or the other way */
- if (data_reg == addr_reg) {
- tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
- tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
- } else {
- tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
- tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
- }
- break;
- }
-#endif
-}
-
-static inline void tcg_out_qemu_st(TCGContext *s, int cond,
- const TCGArg *args, int opc)
-{
- int addr_reg, data_reg, data_reg2;
-#ifdef CONFIG_SOFTMMU
- int mem_index, s_bits;
-# if TARGET_LONG_BITS == 64
- int addr_reg2;
-# endif
- uint32_t *label_ptr;
-#endif
-
- data_reg = *args++;
- if (opc == 3)
- data_reg2 = *args++;
- else
- data_reg2 = 0; /* surpress warning */
- addr_reg = *args++;
-#ifdef CONFIG_SOFTMMU
-# if TARGET_LONG_BITS == 64
- addr_reg2 = *args++;
-# endif
- mem_index = *args;
- s_bits = opc & 3;
-
- /* Should generate something like the following:
- * shr r8, addr_reg, #TARGET_PAGE_BITS
- * and r0, r8, #(CPU_TLB_SIZE - 1) @ Assumption: CPU_TLB_BITS <= 8
- * add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
- */
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- 8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
- tcg_out_dat_imm(s, COND_AL, ARITH_AND,
- 0, 8, CPU_TLB_SIZE - 1);
- tcg_out_dat_reg(s, COND_AL, ARITH_ADD,
- 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
- /* In the
- * ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_write))]
- * below, the offset is likely to exceed 12 bits if mem_index != 0 and
- * not exceed otherwise, so use an
- * add r0, r0, #(mem_index * sizeof *CPUState.tlb_table)
- * before.
- */
- if (mem_index)
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0,
- (mem_index << (TLB_SHIFT & 1)) |
- ((16 - (TLB_SHIFT >> 1)) << 8));
- tcg_out_ld32_12(s, COND_AL, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addr_write));
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP,
- 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
- /* Check alignment. */
- if (s_bits)
- tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
- 0, addr_reg, (1 << s_bits) - 1);
-# if TARGET_LONG_BITS == 64
- /* XXX: possibly we could use a block data load or writeback in
- * the first access. */
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addr_write)
- + 4);
- tcg_out_dat_reg(s, COND_EQ, ARITH_CMP,
- 0, 1, addr_reg2, SHIFT_IMM_LSL(0));
-# endif
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addend));
-
- switch (opc) {
- case 0:
- tcg_out_st8_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 0 | 4:
- tcg_out_st8s_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 1:
- tcg_out_st16u_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 1 | 4:
- tcg_out_st16s_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 2:
- default:
- tcg_out_st32_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 3:
- tcg_out_st32_rwb(s, COND_EQ, data_reg, 1, addr_reg);
- tcg_out_st32_12(s, COND_EQ, data_reg2, 1, 4);
- break;
- }
-
- label_ptr = (void *) s->code_ptr;
- tcg_out_b(s, COND_EQ, 8);
-
- /* TODO: move this code to where the constants pool will be */
- if (addr_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, addr_reg, SHIFT_IMM_LSL(0));
-# if TARGET_LONG_BITS == 32
- switch (opc) {
- case 0:
- tcg_out_dat_imm(s, cond, ARITH_AND, 1, data_reg, 0xff);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
- break;
- case 1:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, 1, SHIFT_IMM_LSR(16));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
- break;
- case 2:
- if (data_reg != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
- break;
- case 3:
- if (data_reg != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(0));
- if (data_reg2 != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg2, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
- break;
- }
-# else
- if (addr_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, addr_reg2, SHIFT_IMM_LSL(0));
- switch (opc) {
- case 0:
- tcg_out_dat_imm(s, cond, ARITH_AND, 2, data_reg, 0xff);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
- break;
- case 1:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, 2, SHIFT_IMM_LSR(16));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
- break;
- case 2:
- if (data_reg != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
- break;
- case 3:
- tcg_out_dat_imm(s, cond, ARITH_MOV, 8, 0, mem_index);
- tcg_out32(s, (cond << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
- if (data_reg != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(0));
- if (data_reg2 != 3)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 3, 0, data_reg2, SHIFT_IMM_LSL(0));
- break;
- }
-# endif
-
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 14, SHIFT_IMM_LSL(0));
-# endif
-
- tcg_out_bl(s, cond, (tcg_target_long) qemu_st_helpers[s_bits] -
- (tcg_target_long) s->code_ptr);
-# if TARGET_LONG_BITS == 64
- if (opc == 3)
- tcg_out_dat_imm(s, cond, ARITH_ADD, 13, 13, 0x10);
-# endif
-
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 8, SHIFT_IMM_LSL(0));
-# endif
-
- *label_ptr += ((void *) s->code_ptr - (void *) label_ptr - 8) >> 2;
-#else
- switch (opc) {
- case 0:
- tcg_out_st8_12(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 0 | 4:
- tcg_out_st8s_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 1:
- tcg_out_st16u_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 1 | 4:
- tcg_out_st16s_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 2:
- default:
- tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 3:
- /* TODO: use block store -
- * check that data_reg2 > data_reg or the other way */
- tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
- tcg_out_st32_12(s, COND_AL, data_reg2, addr_reg, 4);
- break;
- }
-#endif
-}
-
-static uint8_t *tb_ret_addr;
-
-static inline void tcg_out_op(TCGContext *s, int opc,
- const TCGArg *args, const int *const_args)
-{
- int c;
-
- switch (opc) {
- case INDEX_op_exit_tb:
-#ifdef SAVE_LR
- if (args[0] >> 8)
- tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, 15, 0);
- else
- tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R0, 0, args[0]);
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV, 15, 0, 14, SHIFT_IMM_LSL(0));
- if (args[0] >> 8)
- tcg_out32(s, args[0]);
-#else
- {
- uint8_t *ld_ptr = s->code_ptr;
- if (args[0] >> 8)
- tcg_out_ld32_12(s, COND_AL, 0, 15, 0);
- else
- tcg_out_dat_imm(s, COND_AL, ARITH_MOV, 0, 0, args[0]);
- tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr);
- if (args[0] >> 8) {
- *ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8;
- tcg_out32(s, args[0]);
- }
- }
-#endif
- break;
- case INDEX_op_goto_tb:
- if (s->tb_jmp_offset) {
- /* Direct jump method */
-#if defined(USE_DIRECT_JUMP)
- s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
- tcg_out_b(s, COND_AL, 8);
-#else
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
- s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
- tcg_out32(s, 0);
-#endif
- } else {
- /* Indirect jump method */
-#if 1
- c = (int) (s->tb_next + args[0]) - ((int) s->code_ptr + 8);
- if (c > 0xfff || c < -0xfff) {
- tcg_out_movi32(s, COND_AL, TCG_REG_R0,
- (tcg_target_long) (s->tb_next + args[0]));
- tcg_out_ld32_12(s, COND_AL, 15, TCG_REG_R0, 0);
- } else
- tcg_out_ld32_12(s, COND_AL, 15, 15, c);
-#else
- tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, 15, 0);
- tcg_out_ld32_12(s, COND_AL, 15, TCG_REG_R0, 0);
- tcg_out32(s, (tcg_target_long) (s->tb_next + args[0]));
-#endif
- }
- s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
- break;
- case INDEX_op_call:
- if (const_args[0])
- tcg_out_call(s, COND_AL, args[0]);
- else
- tcg_out_callr(s, COND_AL, args[0]);
- break;
- case INDEX_op_jmp:
- if (const_args[0])
- tcg_out_goto(s, COND_AL, args[0]);
- else
- tcg_out_bx(s, COND_AL, args[0]);
- break;
- case INDEX_op_br:
- tcg_out_goto_label(s, COND_AL, args[0]);
- break;
-
- case INDEX_op_ld8u_i32:
- tcg_out_ld8u(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld8s_i32:
- tcg_out_ld8s(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld16u_i32:
- tcg_out_ld16u(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld16s_i32:
- tcg_out_ld16s(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_ld_i32:
- tcg_out_ld32u(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_st8_i32:
- tcg_out_st8u(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_st16_i32:
- tcg_out_st16u(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_st_i32:
- tcg_out_st32(s, COND_AL, args[0], args[1], args[2]);
- break;
-
- case INDEX_op_mov_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[1], SHIFT_IMM_LSL(0));
- break;
- case INDEX_op_movi_i32:
- tcg_out_movi32(s, COND_AL, args[0], args[1]);
- break;
- case INDEX_op_add_i32:
- c = ARITH_ADD;
- goto gen_arith;
- case INDEX_op_sub_i32:
- c = ARITH_SUB;
- goto gen_arith;
- case INDEX_op_and_i32:
- c = ARITH_AND;
- goto gen_arith;
- case INDEX_op_or_i32:
- c = ARITH_ORR;
- goto gen_arith;
- case INDEX_op_xor_i32:
- c = ARITH_EOR;
- /* Fall through. */
- gen_arith:
- tcg_out_dat_reg(s, COND_AL, c,
- args[0], args[1], args[2], SHIFT_IMM_LSL(0));
- break;
- case INDEX_op_add2_i32:
- tcg_out_dat_reg2(s, COND_AL, ARITH_ADD, ARITH_ADC,
- args[0], args[1], args[2], args[3],
- args[4], args[5], SHIFT_IMM_LSL(0));
- break;
- case INDEX_op_sub2_i32:
- tcg_out_dat_reg2(s, COND_AL, ARITH_SUB, ARITH_SBC,
- args[0], args[1], args[2], args[3],
- args[4], args[5], SHIFT_IMM_LSL(0));
- break;
- case INDEX_op_neg_i32:
- tcg_out_dat_imm(s, COND_AL, ARITH_RSB, args[0], args[1], 0);
- break;
- case INDEX_op_mul_i32:
- tcg_out_mul32(s, COND_AL, args[0], args[1], args[2]);
- break;
- case INDEX_op_mulu2_i32:
- tcg_out_umull32(s, COND_AL, args[0], args[1], args[2], args[3]);
- break;
- case INDEX_op_div2_i32:
- tcg_out_div_helper(s, COND_AL, args,
- tcg_helper_div_i64, tcg_helper_rem_i64,
- SHIFT_IMM_ASR(31));
- break;
- case INDEX_op_divu2_i32:
- tcg_out_div_helper(s, COND_AL, args,
- tcg_helper_divu_i64, tcg_helper_remu_i64,
- SHIFT_IMM_LSR(31));
- break;
- /* XXX: Perhaps args[2] & 0x1f is wrong */
- case INDEX_op_shl_i32:
- c = const_args[2] ?
- SHIFT_IMM_LSL(args[2] & 0x1f) : SHIFT_REG_LSL(args[2]);
- goto gen_shift32;
- case INDEX_op_shr_i32:
- c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_LSR(args[2] & 0x1f) :
- SHIFT_IMM_LSL(0) : SHIFT_REG_LSR(args[2]);
- goto gen_shift32;
- case INDEX_op_sar_i32:
- c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ASR(args[2] & 0x1f) :
- SHIFT_IMM_LSL(0) : SHIFT_REG_ASR(args[2]);
- /* Fall through. */
- gen_shift32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], c);
- break;
-
- case INDEX_op_brcond_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
- args[0], args[1], SHIFT_IMM_LSL(0));
- tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[2]], args[3]);
- break;
- case INDEX_op_brcond2_i32:
- /* The resulting conditions are:
- * TCG_COND_EQ --> a0 == a2 && a1 == a3,
- * TCG_COND_NE --> (a0 != a2 && a1 == a3) || a1 != a3,
- * TCG_COND_LT(U) --> (a0 < a2 && a1 == a3) || a1 < a3,
- * TCG_COND_GE(U) --> (a0 >= a2 && a1 == a3) || (a1 >= a3 && a1 != a3),
- * TCG_COND_LE(U) --> (a0 <= a2 && a1 == a3) || (a1 <= a3 && a1 != a3),
- * TCG_COND_GT(U) --> (a0 > a2 && a1 == a3) || a1 > a3,
- */
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
- args[1], args[3], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
- args[0], args[2], SHIFT_IMM_LSL(0));
- tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[4]], args[5]);
- break;
-
- case INDEX_op_qemu_ld8u:
- tcg_out_qemu_ld(s, COND_AL, args, 0);
- break;
- case INDEX_op_qemu_ld8s:
- tcg_out_qemu_ld(s, COND_AL, args, 0 | 4);
- break;
- case INDEX_op_qemu_ld16u:
- tcg_out_qemu_ld(s, COND_AL, args, 1);
- break;
- case INDEX_op_qemu_ld16s:
- tcg_out_qemu_ld(s, COND_AL, args, 1 | 4);
- break;
- case INDEX_op_qemu_ld32u:
- tcg_out_qemu_ld(s, COND_AL, args, 2);
- break;
- case INDEX_op_qemu_ld64:
- tcg_out_qemu_ld(s, COND_AL, args, 3);
- break;
-
- case INDEX_op_qemu_st8:
- tcg_out_qemu_st(s, COND_AL, args, 0);
- break;
- case INDEX_op_qemu_st16:
- tcg_out_qemu_st(s, COND_AL, args, 1);
- break;
- case INDEX_op_qemu_st32:
- tcg_out_qemu_st(s, COND_AL, args, 2);
- break;
- case INDEX_op_qemu_st64:
- tcg_out_qemu_st(s, COND_AL, args, 3);
- break;
-
- case INDEX_op_ext8s_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[1], SHIFT_IMM_LSL(24));
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[0], SHIFT_IMM_ASR(24));
- break;
- case INDEX_op_ext16s_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[1], SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[0], SHIFT_IMM_ASR(16));
- break;
-
- default:
- tcg_abort();
- }
-}
-
-static const TCGTargetOpDef arm_op_defs[] = {
- { INDEX_op_exit_tb, { } },
- { INDEX_op_goto_tb, { } },
- { INDEX_op_call, { "ri" } },
- { INDEX_op_jmp, { "ri" } },
- { INDEX_op_br, { } },
-
- { INDEX_op_mov_i32, { "r", "r" } },
- { INDEX_op_movi_i32, { "r" } },
-
- { INDEX_op_ld8u_i32, { "r", "r" } },
- { INDEX_op_ld8s_i32, { "r", "r" } },
- { INDEX_op_ld16u_i32, { "r", "r" } },
- { INDEX_op_ld16s_i32, { "r", "r" } },
- { INDEX_op_ld_i32, { "r", "r" } },
- { INDEX_op_st8_i32, { "r", "r" } },
- { INDEX_op_st16_i32, { "r", "r" } },
- { INDEX_op_st_i32, { "r", "r" } },
-
- /* TODO: "r", "r", "ri" */
- { INDEX_op_add_i32, { "r", "r", "r" } },
- { INDEX_op_sub_i32, { "r", "r", "r" } },
- { INDEX_op_mul_i32, { "r", "r", "r" } },
- { INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
- { INDEX_op_div2_i32, { "r", "r", "r", "1", "2" } },
- { INDEX_op_divu2_i32, { "r", "r", "r", "1", "2" } },
- { INDEX_op_and_i32, { "r", "r", "r" } },
- { INDEX_op_or_i32, { "r", "r", "r" } },
- { INDEX_op_xor_i32, { "r", "r", "r" } },
- { INDEX_op_neg_i32, { "r", "r" } },
-
- { INDEX_op_shl_i32, { "r", "r", "ri" } },
- { INDEX_op_shr_i32, { "r", "r", "ri" } },
- { INDEX_op_sar_i32, { "r", "r", "ri" } },
-
- { INDEX_op_brcond_i32, { "r", "r" } },
-
- /* TODO: "r", "r", "r", "r", "ri", "ri" */
- { INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
- { INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
- { INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
-
- { INDEX_op_qemu_ld8u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld8s, { "r", "x", "X" } },
- { INDEX_op_qemu_ld16u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld16s, { "r", "x", "X" } },
- { INDEX_op_qemu_ld32u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld64, { "d", "r", "x", "X" } },
-
- { INDEX_op_qemu_st8, { "x", "x", "X" } },
- { INDEX_op_qemu_st16, { "x", "x", "X" } },
- { INDEX_op_qemu_st32, { "x", "x", "X" } },
- { INDEX_op_qemu_st64, { "x", "D", "x", "X" } },
-
- { INDEX_op_ext8s_i32, { "r", "r" } },
- { INDEX_op_ext16s_i32, { "r", "r" } },
-
- { -1 },
-};
-
-void tcg_target_init(TCGContext *s)
-{
- /* fail safe */
- if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry))
- tcg_abort();
-
- tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0,
- ((2 << TCG_REG_R14) - 1) & ~(1 << TCG_REG_R8));
- tcg_regset_set32(tcg_target_call_clobber_regs, 0,
- ((2 << TCG_REG_R3) - 1) |
- (1 << TCG_REG_R12) | (1 << TCG_REG_R14));
-
- tcg_regset_clear(s->reserved_regs);
-#ifdef SAVE_LR
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R14);
-#endif
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R8);
-
- tcg_add_target_add_op_defs(arm_op_defs);
-}
-
-static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg,
- int arg1, tcg_target_long arg2)
-{
- tcg_out_ld32u(s, COND_AL, arg, arg1, arg2);
-}
-
-static inline void tcg_out_st(TCGContext *s, TCGType type, int arg,
- int arg1, tcg_target_long arg2)
-{
- tcg_out_st32(s, COND_AL, arg, arg1, arg2);
-}
-
-void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
-{
- if (val > 0)
- if (val < 0x100)
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, reg, reg, val);
- else
- tcg_abort();
- else if (val < 0) {
- if (val > -0x100)
- tcg_out_dat_imm(s, COND_AL, ARITH_SUB, reg, reg, -val);
- else
- tcg_abort();
- }
-}
-
-static inline void tcg_out_mov(TCGContext *s, int ret, int arg)
-{
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV, ret, 0, arg, SHIFT_IMM_LSL(0));
-}
-
-static inline void tcg_out_movi(TCGContext *s, TCGType type,
- int ret, tcg_target_long arg)
-{
- tcg_out_movi32(s, COND_AL, ret, arg);
-}
-
-void tcg_target_qemu_prologue(TCGContext *s)
-{
- /* stmdb sp!, { r9 - r11, lr } */
- tcg_out32(s, (COND_AL << 28) | 0x092d4e00);
-
- tcg_out_bx(s, COND_AL, TCG_REG_R0);
- tb_ret_addr = s->code_ptr;
-
- /* ldmia sp!, { r9 - r11, pc } */
- tcg_out32(s, (COND_AL << 28) | 0x08bd8e00);
-}
generated by cgit v1.1 at 2024-05-17 07:09:18 +0000