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Diffstat (limited to 'binutils-2.22/include/opcode/mips.h')
| -rw-r--r-- | binutils-2.22/include/opcode/mips.h | 1727 |
1 files changed, 1727 insertions, 0 deletions
diff --git a/binutils-2.22/include/opcode/mips.h b/binutils-2.22/include/opcode/mips.h new file mode 100644 index 0000000..e6703f8 --- /dev/null +++ b/binutils-2.22/include/opcode/mips.h @@ -0,0 +1,1727 @@ +/* mips.h. Mips opcode list for GDB, the GNU debugger. + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, + 2003, 2004, 2005, 2008, 2009, 2010 + Free Software Foundation, Inc. + Contributed by Ralph Campbell and OSF + Commented and modified by Ian Lance Taylor, Cygnus Support + + This file is part of GDB, GAS, and the GNU binutils. + + GDB, GAS, and the GNU binutils are free software; you can redistribute + them and/or modify them under the terms of the GNU General Public + License as published by the Free Software Foundation; either version 3, + or (at your option) any later version. + + GDB, GAS, and the GNU binutils are distributed in the hope that they + will be useful, but WITHOUT ANY WARRANTY; without even the implied + warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this file; see the file COPYING3. If not, write to the Free + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#ifndef _MIPS_H_ +#define _MIPS_H_ + +/* These are bit masks and shift counts to use to access the various + fields of an instruction. To retrieve the X field of an + instruction, use the expression + (i >> OP_SH_X) & OP_MASK_X + To set the same field (to j), use + i = (i &~ (OP_MASK_X << OP_SH_X)) | (j << OP_SH_X) + + Make sure you use fields that are appropriate for the instruction, + of course. + + The 'i' format uses OP, RS, RT and IMMEDIATE. + + The 'j' format uses OP and TARGET. + + The 'r' format uses OP, RS, RT, RD, SHAMT and FUNCT. + + The 'b' format uses OP, RS, RT and DELTA. + + The floating point 'i' format uses OP, RS, RT and IMMEDIATE. + + The floating point 'r' format uses OP, FMT, FT, FS, FD and FUNCT. + + A breakpoint instruction uses OP, CODE and SPEC (10 bits of the + breakpoint instruction are not defined; Kane says the breakpoint + code field in BREAK is 20 bits; yet MIPS assemblers and debuggers + only use ten bits). An optional two-operand form of break/sdbbp + allows the lower ten bits to be set too, and MIPS32 and later + architectures allow 20 bits to be set with a signal operand + (using CODE20). + + The syscall instruction uses CODE20. + + The general coprocessor instructions use COPZ. */ + +#define OP_MASK_OP 0x3f +#define OP_SH_OP 26 +#define OP_MASK_RS 0x1f +#define OP_SH_RS 21 +#define OP_MASK_FR 0x1f +#define OP_SH_FR 21 +#define OP_MASK_FMT 0x1f +#define OP_SH_FMT 21 +#define OP_MASK_BCC 0x7 +#define OP_SH_BCC 18 +#define OP_MASK_CODE 0x3ff +#define OP_SH_CODE 16 +#define OP_MASK_CODE2 0x3ff +#define OP_SH_CODE2 6 +#define OP_MASK_RT 0x1f +#define OP_SH_RT 16 +#define OP_MASK_FT 0x1f +#define OP_SH_FT 16 +#define OP_MASK_CACHE 0x1f +#define OP_SH_CACHE 16 +#define OP_MASK_RD 0x1f +#define OP_SH_RD 11 +#define OP_MASK_FS 0x1f +#define OP_SH_FS 11 +#define OP_MASK_PREFX 0x1f +#define OP_SH_PREFX 11 +#define OP_MASK_CCC 0x7 +#define OP_SH_CCC 8 +#define OP_MASK_CODE20 0xfffff /* 20 bit syscall/breakpoint code. */ +#define OP_SH_CODE20 6 +#define OP_MASK_SHAMT 0x1f +#define OP_SH_SHAMT 6 +#define OP_MASK_EXTLSB OP_MASK_SHAMT +#define OP_SH_EXTLSB OP_SH_SHAMT +#define OP_MASK_STYPE OP_MASK_SHAMT +#define OP_SH_STYPE OP_SH_SHAMT +#define OP_MASK_FD 0x1f +#define OP_SH_FD 6 +#define OP_MASK_TARGET 0x3ffffff +#define OP_SH_TARGET 0 +#define OP_MASK_COPZ 0x1ffffff +#define OP_SH_COPZ 0 +#define OP_MASK_IMMEDIATE 0xffff +#define OP_SH_IMMEDIATE 0 +#define OP_MASK_DELTA 0xffff +#define OP_SH_DELTA 0 +#define OP_MASK_FUNCT 0x3f +#define OP_SH_FUNCT 0 +#define OP_MASK_SPEC 0x3f +#define OP_SH_SPEC 0 +#define OP_SH_LOCC 8 /* FP condition code. */ +#define OP_SH_HICC 18 /* FP condition code. */ +#define OP_MASK_CC 0x7 +#define OP_SH_COP1NORM 25 /* Normal COP1 encoding. */ +#define OP_MASK_COP1NORM 0x1 /* a single bit. */ +#define OP_SH_COP1SPEC 21 /* COP1 encodings. */ +#define OP_MASK_COP1SPEC 0xf +#define OP_MASK_COP1SCLR 0x4 +#define OP_MASK_COP1CMP 0x3 +#define OP_SH_COP1CMP 4 +#define OP_SH_FORMAT 21 /* FP short format field. */ +#define OP_MASK_FORMAT 0x7 +#define OP_SH_TRUE 16 +#define OP_MASK_TRUE 0x1 +#define OP_SH_GE 17 +#define OP_MASK_GE 0x01 +#define OP_SH_UNSIGNED 16 +#define OP_MASK_UNSIGNED 0x1 +#define OP_SH_HINT 16 +#define OP_MASK_HINT 0x1f +#define OP_SH_MMI 0 /* Multimedia (parallel) op. */ +#define OP_MASK_MMI 0x3f +#define OP_SH_MMISUB 6 +#define OP_MASK_MMISUB 0x1f +#define OP_MASK_PERFREG 0x1f /* Performance monitoring. */ +#define OP_SH_PERFREG 1 +#define OP_SH_SEL 0 /* Coprocessor select field. */ +#define OP_MASK_SEL 0x7 /* The sel field of mfcZ and mtcZ. */ +#define OP_SH_CODE19 6 /* 19 bit wait code. */ +#define OP_MASK_CODE19 0x7ffff +#define OP_SH_ALN 21 +#define OP_MASK_ALN 0x7 +#define OP_SH_VSEL 21 +#define OP_MASK_VSEL 0x1f +#define OP_MASK_VECBYTE 0x7 /* Selector field is really 4 bits, + but 0x8-0xf don't select bytes. */ +#define OP_SH_VECBYTE 22 +#define OP_MASK_VECALIGN 0x7 /* Vector byte-align (alni.ob) op. */ +#define OP_SH_VECALIGN 21 +#define OP_MASK_INSMSB 0x1f /* "ins" MSB. */ +#define OP_SH_INSMSB 11 +#define OP_MASK_EXTMSBD 0x1f /* "ext" MSBD. */ +#define OP_SH_EXTMSBD 11 + +/* MIPS DSP ASE */ +#define OP_SH_DSPACC 11 +#define OP_MASK_DSPACC 0x3 +#define OP_SH_DSPACC_S 21 +#define OP_MASK_DSPACC_S 0x3 +#define OP_SH_DSPSFT 20 +#define OP_MASK_DSPSFT 0x3f +#define OP_SH_DSPSFT_7 19 +#define OP_MASK_DSPSFT_7 0x7f +#define OP_SH_SA3 21 +#define OP_MASK_SA3 0x7 +#define OP_SH_SA4 21 +#define OP_MASK_SA4 0xf +#define OP_SH_IMM8 16 +#define OP_MASK_IMM8 0xff +#define OP_SH_IMM10 16 +#define OP_MASK_IMM10 0x3ff +#define OP_SH_WRDSP 11 +#define OP_MASK_WRDSP 0x3f +#define OP_SH_RDDSP 16 +#define OP_MASK_RDDSP 0x3f +#define OP_SH_BP 11 +#define OP_MASK_BP 0x3 + +/* MIPS MT ASE */ +#define OP_SH_MT_U 5 +#define OP_MASK_MT_U 0x1 +#define OP_SH_MT_H 4 +#define OP_MASK_MT_H 0x1 +#define OP_SH_MTACC_T 18 +#define OP_MASK_MTACC_T 0x3 +#define OP_SH_MTACC_D 13 +#define OP_MASK_MTACC_D 0x3 + +/* MIPS MCU ASE */ +#define OP_MASK_3BITPOS 0x7 +#define OP_SH_3BITPOS 12 +#define OP_MASK_OFFSET12 0xfff +#define OP_SH_OFFSET12 0 + +#define OP_OP_COP0 0x10 +#define OP_OP_COP1 0x11 +#define OP_OP_COP2 0x12 +#define OP_OP_COP3 0x13 +#define OP_OP_LWC1 0x31 +#define OP_OP_LWC2 0x32 +#define OP_OP_LWC3 0x33 /* a.k.a. pref */ +#define OP_OP_LDC1 0x35 +#define OP_OP_LDC2 0x36 +#define OP_OP_LDC3 0x37 /* a.k.a. ld */ +#define OP_OP_SWC1 0x39 +#define OP_OP_SWC2 0x3a +#define OP_OP_SWC3 0x3b +#define OP_OP_SDC1 0x3d +#define OP_OP_SDC2 0x3e +#define OP_OP_SDC3 0x3f /* a.k.a. sd */ + +/* Values in the 'VSEL' field. */ +#define MDMX_FMTSEL_IMM_QH 0x1d +#define MDMX_FMTSEL_IMM_OB 0x1e +#define MDMX_FMTSEL_VEC_QH 0x15 +#define MDMX_FMTSEL_VEC_OB 0x16 + +/* UDI */ +#define OP_SH_UDI1 6 +#define OP_MASK_UDI1 0x1f +#define OP_SH_UDI2 6 +#define OP_MASK_UDI2 0x3ff +#define OP_SH_UDI3 6 +#define OP_MASK_UDI3 0x7fff +#define OP_SH_UDI4 6 +#define OP_MASK_UDI4 0xfffff + +/* Octeon */ +#define OP_SH_BBITIND 16 +#define OP_MASK_BBITIND 0x1f +#define OP_SH_CINSPOS 6 +#define OP_MASK_CINSPOS 0x1f +#define OP_SH_CINSLM1 11 +#define OP_MASK_CINSLM1 0x1f +#define OP_SH_SEQI 6 +#define OP_MASK_SEQI 0x3ff + +/* Loongson */ +#define OP_SH_OFFSET_A 6 +#define OP_MASK_OFFSET_A 0xff +#define OP_SH_OFFSET_B 3 +#define OP_MASK_OFFSET_B 0xff +#define OP_SH_OFFSET_C 6 +#define OP_MASK_OFFSET_C 0x1ff +#define OP_SH_RZ 0 +#define OP_MASK_RZ 0x1f +#define OP_SH_FZ 0 +#define OP_MASK_FZ 0x1f + +/* Every MICROMIPSOP_X definition requires a corresponding OP_X + definition, and vice versa. This simplifies various parts + of the operand handling in GAS. The fields below only exist + in the microMIPS encoding, so define each one to have an empty + range. */ +#define OP_MASK_CODE10 0 +#define OP_SH_CODE10 0 +#define OP_MASK_TRAP 0 +#define OP_SH_TRAP 0 +#define OP_MASK_OFFSET10 0 +#define OP_SH_OFFSET10 0 +#define OP_MASK_RS3 0 +#define OP_SH_RS3 0 +#define OP_MASK_MB 0 +#define OP_SH_MB 0 +#define OP_MASK_MC 0 +#define OP_SH_MC 0 +#define OP_MASK_MD 0 +#define OP_SH_MD 0 +#define OP_MASK_ME 0 +#define OP_SH_ME 0 +#define OP_MASK_MF 0 +#define OP_SH_MF 0 +#define OP_MASK_MG 0 +#define OP_SH_MG 0 +#define OP_MASK_MH 0 +#define OP_SH_MH 0 +#define OP_MASK_MI 0 +#define OP_SH_MI 0 +#define OP_MASK_MJ 0 +#define OP_SH_MJ 0 +#define OP_MASK_ML 0 +#define OP_SH_ML 0 +#define OP_MASK_MM 0 +#define OP_SH_MM 0 +#define OP_MASK_MN 0 +#define OP_SH_MN 0 +#define OP_MASK_MP 0 +#define OP_SH_MP 0 +#define OP_MASK_MQ 0 +#define OP_SH_MQ 0 +#define OP_MASK_IMMA 0 +#define OP_SH_IMMA 0 +#define OP_MASK_IMMB 0 +#define OP_SH_IMMB 0 +#define OP_MASK_IMMC 0 +#define OP_SH_IMMC 0 +#define OP_MASK_IMMF 0 +#define OP_SH_IMMF 0 +#define OP_MASK_IMMG 0 +#define OP_SH_IMMG 0 +#define OP_MASK_IMMH 0 +#define OP_SH_IMMH 0 +#define OP_MASK_IMMI 0 +#define OP_SH_IMMI 0 +#define OP_MASK_IMMJ 0 +#define OP_SH_IMMJ 0 +#define OP_MASK_IMML 0 +#define OP_SH_IMML 0 +#define OP_MASK_IMMM 0 +#define OP_SH_IMMM 0 +#define OP_MASK_IMMN 0 +#define OP_SH_IMMN 0 +#define OP_MASK_IMMO 0 +#define OP_SH_IMMO 0 +#define OP_MASK_IMMP 0 +#define OP_SH_IMMP 0 +#define OP_MASK_IMMQ 0 +#define OP_SH_IMMQ 0 +#define OP_MASK_IMMU 0 +#define OP_SH_IMMU 0 +#define OP_MASK_IMMW 0 +#define OP_SH_IMMW 0 +#define OP_MASK_IMMX 0 +#define OP_SH_IMMX 0 +#define OP_MASK_IMMY 0 +#define OP_SH_IMMY 0 + +/* This structure holds information for a particular instruction. */ + +struct mips_opcode +{ + /* The name of the instruction. */ + const char *name; + /* A string describing the arguments for this instruction. */ + const char *args; + /* The basic opcode for the instruction. When assembling, this + opcode is modified by the arguments to produce the actual opcode + that is used. If pinfo is INSN_MACRO, then this is 0. */ + unsigned long match; + /* If pinfo is not INSN_MACRO, then this is a bit mask for the + relevant portions of the opcode when disassembling. If the + actual opcode anded with the match field equals the opcode field, + then we have found the correct instruction. If pinfo is + INSN_MACRO, then this field is the macro identifier. */ + unsigned long mask; + /* For a macro, this is INSN_MACRO. Otherwise, it is a collection + of bits describing the instruction, notably any relevant hazard + information. */ + unsigned long pinfo; + /* A collection of additional bits describing the instruction. */ + unsigned long pinfo2; + /* A collection of bits describing the instruction sets of which this + instruction or macro is a member. */ + unsigned long membership; +}; + +/* These are the characters which may appear in the args field of an + instruction. They appear in the order in which the fields appear + when the instruction is used. Commas and parentheses in the args + string are ignored when assembling, and written into the output + when disassembling. + + Each of these characters corresponds to a mask field defined above. + + "1" 5 bit sync type (OP_*_SHAMT) + "<" 5 bit shift amount (OP_*_SHAMT) + ">" shift amount between 32 and 63, stored after subtracting 32 (OP_*_SHAMT) + "a" 26 bit target address (OP_*_TARGET) + "b" 5 bit base register (OP_*_RS) + "c" 10 bit breakpoint code (OP_*_CODE) + "d" 5 bit destination register specifier (OP_*_RD) + "h" 5 bit prefx hint (OP_*_PREFX) + "i" 16 bit unsigned immediate (OP_*_IMMEDIATE) + "j" 16 bit signed immediate (OP_*_DELTA) + "k" 5 bit cache opcode in target register position (OP_*_CACHE) + Also used for immediate operands in vr5400 vector insns. + "o" 16 bit signed offset (OP_*_DELTA) + "p" 16 bit PC relative branch target address (OP_*_DELTA) + "q" 10 bit extra breakpoint code (OP_*_CODE2) + "r" 5 bit same register used as both source and target (OP_*_RS) + "s" 5 bit source register specifier (OP_*_RS) + "t" 5 bit target register (OP_*_RT) + "u" 16 bit upper 16 bits of address (OP_*_IMMEDIATE) + "v" 5 bit same register used as both source and destination (OP_*_RS) + "w" 5 bit same register used as both target and destination (OP_*_RT) + "U" 5 bit same destination register in both OP_*_RD and OP_*_RT + (used by clo and clz) + "C" 25 bit coprocessor function code (OP_*_COPZ) + "B" 20 bit syscall/breakpoint function code (OP_*_CODE20) + "J" 19 bit wait function code (OP_*_CODE19) + "x" accept and ignore register name + "z" must be zero register + "K" 5 bit Hardware Register (rdhwr instruction) (OP_*_RD) + "+A" 5 bit ins/ext/dins/dext/dinsm/dextm position, which becomes + LSB (OP_*_SHAMT; OP_*_EXTLSB or OP_*_STYPE may be used for + microMIPS compatibility). + Enforces: 0 <= pos < 32. + "+B" 5 bit ins/dins size, which becomes MSB (OP_*_INSMSB). + Requires that "+A" or "+E" occur first to set position. + Enforces: 0 < (pos+size) <= 32. + "+C" 5 bit ext/dext size, which becomes MSBD (OP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 0 < (pos+size) <= 32. + (Also used by "dext" w/ different limits, but limits for + that are checked by the M_DEXT macro.) + "+E" 5 bit dinsu/dextu position, which becomes LSB-32 (OP_*_SHAMT). + Enforces: 32 <= pos < 64. + "+F" 5 bit "dinsm/dinsu" size, which becomes MSB-32 (OP_*_INSMSB). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + "+G" 5 bit "dextm" size, which becomes MSBD-32 (OP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + "+H" 5 bit "dextu" size, which becomes MSBD (OP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + + Floating point instructions: + "D" 5 bit destination register (OP_*_FD) + "M" 3 bit compare condition code (OP_*_CCC) (only used for mips4 and up) + "N" 3 bit branch condition code (OP_*_BCC) (only used for mips4 and up) + "S" 5 bit fs source 1 register (OP_*_FS) + "T" 5 bit ft source 2 register (OP_*_FT) + "R" 5 bit fr source 3 register (OP_*_FR) + "V" 5 bit same register used as floating source and destination (OP_*_FS) + "W" 5 bit same register used as floating target and destination (OP_*_FT) + + Coprocessor instructions: + "E" 5 bit target register (OP_*_RT) + "G" 5 bit destination register (OP_*_RD) + "H" 3 bit sel field for (d)mtc* and (d)mfc* (OP_*_SEL) + "P" 5 bit performance-monitor register (OP_*_PERFREG) + "e" 5 bit vector register byte specifier (OP_*_VECBYTE) + "%" 3 bit immediate vr5400 vector alignment operand (OP_*_VECALIGN) + see also "k" above + "+D" Combined destination register ("G") and sel ("H") for CP0 ops, + for pretty-printing in disassembly only. + + Macro instructions: + "A" General 32 bit expression + "I" 32 bit immediate (value placed in imm_expr). + "+I" 32 bit immediate (value placed in imm2_expr). + "F" 64 bit floating point constant in .rdata + "L" 64 bit floating point constant in .lit8 + "f" 32 bit floating point constant + "l" 32 bit floating point constant in .lit4 + + MDMX instruction operands (note that while these use the FP register + fields, they accept both $fN and $vN names for the registers): + "O" MDMX alignment offset (OP_*_ALN) + "Q" MDMX vector/scalar/immediate source (OP_*_VSEL and OP_*_FT) + "X" MDMX destination register (OP_*_FD) + "Y" MDMX source register (OP_*_FS) + "Z" MDMX source register (OP_*_FT) + + DSP ASE usage: + "2" 2 bit unsigned immediate for byte align (OP_*_BP) + "3" 3 bit unsigned immediate (OP_*_SA3) + "4" 4 bit unsigned immediate (OP_*_SA4) + "5" 8 bit unsigned immediate (OP_*_IMM8) + "6" 5 bit unsigned immediate (OP_*_RS) + "7" 2 bit dsp accumulator register (OP_*_DSPACC) + "8" 6 bit unsigned immediate (OP_*_WRDSP) + "9" 2 bit dsp accumulator register (OP_*_DSPACC_S) + "0" 6 bit signed immediate (OP_*_DSPSFT) + ":" 7 bit signed immediate (OP_*_DSPSFT_7) + "'" 6 bit unsigned immediate (OP_*_RDDSP) + "@" 10 bit signed immediate (OP_*_IMM10) + + MT ASE usage: + "!" 1 bit usermode flag (OP_*_MT_U) + "$" 1 bit load high flag (OP_*_MT_H) + "*" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_T) + "&" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_D) + "g" 5 bit coprocessor 1 and 2 destination register (OP_*_RD) + "+t" 5 bit coprocessor 0 destination register (OP_*_RT) + "+T" 5 bit coprocessor 0 destination register (OP_*_RT) - disassembly only + + MCU ASE usage: + "~" 12 bit offset (OP_*_OFFSET12) + "\" 3 bit position for aset and aclr (OP_*_3BITPOS) + + UDI immediates: + "+1" UDI immediate bits 6-10 + "+2" UDI immediate bits 6-15 + "+3" UDI immediate bits 6-20 + "+4" UDI immediate bits 6-25 + + Octeon: + "+x" Bit index field of bbit. Enforces: 0 <= index < 32. + "+X" Bit index field of bbit aliasing bbit32. Matches if 32 <= index < 64, + otherwise skips to next candidate. + "+p" Position field of cins/cins32/exts/exts32. Enforces 0 <= pos < 32. + "+P" Position field of cins/exts aliasing cins32/exts32. Matches if + 32 <= pos < 64, otherwise skips to next candidate. + "+Q" Immediate field of seqi/snei. Enforces -512 <= imm < 512. + "+s" Length-minus-one field of cins/exts. Enforces: 0 <= lenm1 < 32. + "+S" Length-minus-one field of cins32/exts32 or cins/exts aliasing + cint32/exts32. Enforces non-negative value and that + pos + lenm1 < 32 or pos + lenm1 < 64 depending whether previous + position field is "+p" or "+P". + + Loongson-3A: + "+a" 8-bit signed offset in bit 6 (OP_*_OFFSET_A) + "+b" 8-bit signed offset in bit 3 (OP_*_OFFSET_B) + "+c" 9-bit signed offset in bit 6 (OP_*_OFFSET_C) + "+z" 5-bit rz register (OP_*_RZ) + "+Z" 5-bit fz register (OP_*_FZ) + + Other: + "()" parens surrounding optional value + "," separates operands + "[]" brackets around index for vector-op scalar operand specifier (vr5400) + "+" Start of extension sequence. + + Characters used so far, for quick reference when adding more: + "1234567890" + "%[]<>(),+:'@!$*&\~" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklopqrstuvwxz" + + Extension character sequences used so far ("+" followed by the + following), for quick reference when adding more: + "1234" + "ABCDEFGHIPQSTXZ" + "abcpstxz" +*/ + +/* These are the bits which may be set in the pinfo field of an + instructions, if it is not equal to INSN_MACRO. */ + +/* Modifies the general purpose register in OP_*_RD. */ +#define INSN_WRITE_GPR_D 0x00000001 +/* Modifies the general purpose register in OP_*_RT. */ +#define INSN_WRITE_GPR_T 0x00000002 +/* Modifies general purpose register 31. */ +#define INSN_WRITE_GPR_31 0x00000004 +/* Modifies the floating point register in OP_*_FD. */ +#define INSN_WRITE_FPR_D 0x00000008 +/* Modifies the floating point register in OP_*_FS. */ +#define INSN_WRITE_FPR_S 0x00000010 +/* Modifies the floating point register in OP_*_FT. */ +#define INSN_WRITE_FPR_T 0x00000020 +/* Reads the general purpose register in OP_*_RS. */ +#define INSN_READ_GPR_S 0x00000040 +/* Reads the general purpose register in OP_*_RT. */ +#define INSN_READ_GPR_T 0x00000080 +/* Reads the floating point register in OP_*_FS. */ +#define INSN_READ_FPR_S 0x00000100 +/* Reads the floating point register in OP_*_FT. */ +#define INSN_READ_FPR_T 0x00000200 +/* Reads the floating point register in OP_*_FR. */ +#define INSN_READ_FPR_R 0x00000400 +/* Modifies coprocessor condition code. */ +#define INSN_WRITE_COND_CODE 0x00000800 +/* Reads coprocessor condition code. */ +#define INSN_READ_COND_CODE 0x00001000 +/* TLB operation. */ +#define INSN_TLB 0x00002000 +/* Reads coprocessor register other than floating point register. */ +#define INSN_COP 0x00004000 +/* Instruction loads value from memory, requiring delay. */ +#define INSN_LOAD_MEMORY_DELAY 0x00008000 +/* Instruction loads value from coprocessor, requiring delay. */ +#define INSN_LOAD_COPROC_DELAY 0x00010000 +/* Instruction has unconditional branch delay slot. */ +#define INSN_UNCOND_BRANCH_DELAY 0x00020000 +/* Instruction has conditional branch delay slot. */ +#define INSN_COND_BRANCH_DELAY 0x00040000 +/* Conditional branch likely: if branch not taken, insn nullified. */ +#define INSN_COND_BRANCH_LIKELY 0x00080000 +/* Moves to coprocessor register, requiring delay. */ +#define INSN_COPROC_MOVE_DELAY 0x00100000 +/* Loads coprocessor register from memory, requiring delay. */ +#define INSN_COPROC_MEMORY_DELAY 0x00200000 +/* Reads the HI register. */ +#define INSN_READ_HI 0x00400000 +/* Reads the LO register. */ +#define INSN_READ_LO 0x00800000 +/* Modifies the HI register. */ +#define INSN_WRITE_HI 0x01000000 +/* Modifies the LO register. */ +#define INSN_WRITE_LO 0x02000000 +/* Not to be placed in a branch delay slot, either architecturally + or for ease of handling (such as with instructions that take a trap). */ +#define INSN_NO_DELAY_SLOT 0x04000000 +/* Instruction stores value into memory. */ +#define INSN_STORE_MEMORY 0x08000000 +/* Instruction uses single precision floating point. */ +#define FP_S 0x10000000 +/* Instruction uses double precision floating point. */ +#define FP_D 0x20000000 +/* Instruction is part of the tx39's integer multiply family. */ +#define INSN_MULT 0x40000000 +/* Modifies the general purpose register in MICROMIPSOP_*_RS. */ +#define INSN_WRITE_GPR_S 0x80000000 +/* Instruction is actually a macro. It should be ignored by the + disassembler, and requires special treatment by the assembler. */ +#define INSN_MACRO 0xffffffff + +/* These are the bits which may be set in the pinfo2 field of an + instruction. */ + +/* Instruction is a simple alias (I.E. "move" for daddu/addu/or) */ +#define INSN2_ALIAS 0x00000001 +/* Instruction reads MDMX accumulator. */ +#define INSN2_READ_MDMX_ACC 0x00000002 +/* Instruction writes MDMX accumulator. */ +#define INSN2_WRITE_MDMX_ACC 0x00000004 +/* Macro uses single-precision floating-point instructions. This should + only be set for macros. For instructions, FP_S in pinfo carries the + same information. */ +#define INSN2_M_FP_S 0x00000008 +/* Macro uses double-precision floating-point instructions. This should + only be set for macros. For instructions, FP_D in pinfo carries the + same information. */ +#define INSN2_M_FP_D 0x00000010 +/* Modifies the general purpose register in OP_*_RZ. */ +#define INSN2_WRITE_GPR_Z 0x00000020 +/* Modifies the floating point register in OP_*_FZ. */ +#define INSN2_WRITE_FPR_Z 0x00000040 +/* Reads the general purpose register in OP_*_RZ. */ +#define INSN2_READ_GPR_Z 0x00000080 +/* Reads the floating point register in OP_*_FZ. */ +#define INSN2_READ_FPR_Z 0x00000100 +/* Reads the general purpose register in OP_*_RD. */ +#define INSN2_READ_GPR_D 0x00000200 + + +/* Instruction has a branch delay slot that requires a 16-bit instruction. */ +#define INSN2_BRANCH_DELAY_16BIT 0x00000400 +/* Instruction has a branch delay slot that requires a 32-bit instruction. */ +#define INSN2_BRANCH_DELAY_32BIT 0x00000800 +/* Reads the floating point register in MICROMIPSOP_*_FD. */ +#define INSN2_READ_FPR_D 0x00001000 +/* Modifies the general purpose register in MICROMIPSOP_*_MB. */ +#define INSN2_WRITE_GPR_MB 0x00002000 +/* Reads the general purpose register in MICROMIPSOP_*_MC. */ +#define INSN2_READ_GPR_MC 0x00004000 +/* Reads/writes the general purpose register in MICROMIPSOP_*_MD. */ +#define INSN2_MOD_GPR_MD 0x00008000 +/* Reads the general purpose register in MICROMIPSOP_*_ME. */ +#define INSN2_READ_GPR_ME 0x00010000 +/* Reads/writes the general purpose register in MICROMIPSOP_*_MF. */ +#define INSN2_MOD_GPR_MF 0x00020000 +/* Reads the general purpose register in MICROMIPSOP_*_MG. */ +#define INSN2_READ_GPR_MG 0x00040000 +/* Reads the general purpose register in MICROMIPSOP_*_MJ. */ +#define INSN2_READ_GPR_MJ 0x00080000 +/* Modifies the general purpose register in MICROMIPSOP_*_MJ. */ +#define INSN2_WRITE_GPR_MJ 0x00100000 +/* Reads the general purpose register in MICROMIPSOP_*_MP. */ +#define INSN2_READ_GPR_MP 0x00200000 +/* Modifies the general purpose register in MICROMIPSOP_*_MP. */ +#define INSN2_WRITE_GPR_MP 0x00400000 +/* Reads the general purpose register in MICROMIPSOP_*_MQ. */ +#define INSN2_READ_GPR_MQ 0x00800000 +/* Reads/Writes the stack pointer ($29). */ +#define INSN2_MOD_SP 0x01000000 +/* Reads the RA ($31) register. */ +#define INSN2_READ_GPR_31 0x02000000 +/* Reads the global pointer ($28). */ +#define INSN2_READ_GP 0x04000000 +/* Reads the program counter ($pc). */ +#define INSN2_READ_PC 0x08000000 +/* Is an unconditional branch insn. */ +#define INSN2_UNCOND_BRANCH 0x10000000 +/* Is a conditional branch insn. */ +#define INSN2_COND_BRANCH 0x20000000 +/* Modifies the general purpose registers in MICROMIPSOP_*_MH/I. */ +#define INSN2_WRITE_GPR_MHI 0x40000000 +/* Reads the general purpose registers in MICROMIPSOP_*_MM/N. */ +#define INSN2_READ_GPR_MMN 0x80000000 + +/* Masks used to mark instructions to indicate which MIPS ISA level + they were introduced in. INSN_ISA_MASK masks an enumeration that + specifies the base ISA level(s). The remainder of a 32-bit + word constructed using these macros is a bitmask of the remaining + INSN_* values below. */ + +#define INSN_ISA_MASK 0x0000000ful + +/* We cannot start at zero due to ISA_UNKNOWN below. */ +#define INSN_ISA1 1 +#define INSN_ISA2 2 +#define INSN_ISA3 3 +#define INSN_ISA4 4 +#define INSN_ISA5 5 +#define INSN_ISA32 6 +#define INSN_ISA32R2 7 +#define INSN_ISA64 8 +#define INSN_ISA64R2 9 +/* Below this point the INSN_* values correspond to combinations of ISAs. + They are only for use in the opcodes table to indicate membership of + a combination of ISAs that cannot be expressed using the usual inclusion + ordering on the above INSN_* values. */ +#define INSN_ISA3_32 10 +#define INSN_ISA3_32R2 11 +#define INSN_ISA4_32 12 +#define INSN_ISA4_32R2 13 +#define INSN_ISA5_32R2 14 + +/* Given INSN_ISA* values X and Y, where X ranges over INSN_ISA1 through + INSN_ISA5_32R2 and Y ranges over INSN_ISA1 through INSN_ISA64R2, + this table describes whether at least one of the ISAs described by X + is/are implemented by ISA Y. (Think of Y as the ISA level supported by + a particular core and X as the ISA level(s) at which a certain instruction + is defined.) The ISA(s) described by X is/are implemented by Y iff + (mips_isa_table[(Y & INSN_ISA_MASK) - 1] >> ((X & INSN_ISA_MASK) - 1)) & 1 + is non-zero. */ +static const unsigned int mips_isa_table[] = + { 0x0001, 0x0003, 0x0607, 0x1e0f, 0x3e1f, 0x0a23, 0x3e63, 0x3ebf, 0x3fff }; + +/* Masks used for Chip specific instructions. */ +#define INSN_CHIP_MASK 0xc3ff0c20 + +/* Cavium Networks Octeon instructions. */ +#define INSN_OCTEON 0x00000800 + +/* Masks used for MIPS-defined ASEs. */ +#define INSN_ASE_MASK 0x3c00f010 + +/* DSP ASE */ +#define INSN_DSP 0x00001000 +#define INSN_DSP64 0x00002000 + +/* 0x00004000 is unused. */ + +/* MIPS-3D ASE */ +#define INSN_MIPS3D 0x00008000 + +/* MIPS R4650 instruction. */ +#define INSN_4650 0x00010000 +/* LSI R4010 instruction. */ +#define INSN_4010 0x00020000 +/* NEC VR4100 instruction. */ +#define INSN_4100 0x00040000 +/* Toshiba R3900 instruction. */ +#define INSN_3900 0x00080000 +/* MIPS R10000 instruction. */ +#define INSN_10000 0x00100000 +/* Broadcom SB-1 instruction. */ +#define INSN_SB1 0x00200000 +/* NEC VR4111/VR4181 instruction. */ +#define INSN_4111 0x00400000 +/* NEC VR4120 instruction. */ +#define INSN_4120 0x00800000 +/* NEC VR5400 instruction. */ +#define INSN_5400 0x01000000 +/* NEC VR5500 instruction. */ +#define INSN_5500 0x02000000 + +/* MDMX ASE */ +#define INSN_MDMX 0x04000000 +/* MT ASE */ +#define INSN_MT 0x08000000 +/* SmartMIPS ASE */ +#define INSN_SMARTMIPS 0x10000000 +/* DSP R2 ASE */ +#define INSN_DSPR2 0x20000000 +/* ST Microelectronics Loongson 2E. */ +#define INSN_LOONGSON_2E 0x40000000 +/* ST Microelectronics Loongson 2F. */ +#define INSN_LOONGSON_2F 0x80000000 +/* Loongson 3A. */ +#define INSN_LOONGSON_3A 0x00000400 +/* RMI Xlr instruction */ +#define INSN_XLR 0x00000020 + +/* MCU (MicroController) ASE */ +#define INSN_MCU 0x00000010 + +/* MIPS ISA defines, use instead of hardcoding ISA level. */ + +#define ISA_UNKNOWN 0 /* Gas internal use. */ +#define ISA_MIPS1 INSN_ISA1 +#define ISA_MIPS2 INSN_ISA2 +#define ISA_MIPS3 INSN_ISA3 +#define ISA_MIPS4 INSN_ISA4 +#define ISA_MIPS5 INSN_ISA5 + +#define ISA_MIPS32 INSN_ISA32 +#define ISA_MIPS64 INSN_ISA64 + +#define ISA_MIPS32R2 INSN_ISA32R2 +#define ISA_MIPS64R2 INSN_ISA64R2 + + +/* CPU defines, use instead of hardcoding processor number. Keep this + in sync with bfd/archures.c in order for machine selection to work. */ +#define CPU_UNKNOWN 0 /* Gas internal use. */ +#define CPU_R3000 3000 +#define CPU_R3900 3900 +#define CPU_R4000 4000 +#define CPU_R4010 4010 +#define CPU_VR4100 4100 +#define CPU_R4111 4111 +#define CPU_VR4120 4120 +#define CPU_R4300 4300 +#define CPU_R4400 4400 +#define CPU_R4600 4600 +#define CPU_R4650 4650 +#define CPU_R5000 5000 +#define CPU_VR5400 5400 +#define CPU_VR5500 5500 +#define CPU_R6000 6000 +#define CPU_RM7000 7000 +#define CPU_R8000 8000 +#define CPU_RM9000 9000 +#define CPU_R10000 10000 +#define CPU_R12000 12000 +#define CPU_R14000 14000 +#define CPU_R16000 16000 +#define CPU_MIPS16 16 +#define CPU_MIPS32 32 +#define CPU_MIPS32R2 33 +#define CPU_MIPS5 5 +#define CPU_MIPS64 64 +#define CPU_MIPS64R2 65 +#define CPU_SB1 12310201 /* octal 'SB', 01. */ +#define CPU_LOONGSON_2E 3001 +#define CPU_LOONGSON_2F 3002 +#define CPU_LOONGSON_3A 3003 +#define CPU_OCTEON 6501 +#define CPU_XLR 887682 /* decimal 'XLR' */ + +/* Test for membership in an ISA including chip specific ISAs. INSN + is pointer to an element of the opcode table; ISA is the specified + ISA/ASE bitmask to test against; and CPU is the CPU specific ISA to + test, or zero if no CPU specific ISA test is desired. */ + +#define OPCODE_IS_MEMBER(insn, isa, cpu) \ + (((isa & INSN_ISA_MASK) != 0 \ + && ((insn)->membership & INSN_ISA_MASK) != 0 \ + && ((mips_isa_table [(isa & INSN_ISA_MASK) - 1] >> \ + (((insn)->membership & INSN_ISA_MASK) - 1)) & 1) != 0) \ + || ((isa & ~INSN_ISA_MASK) \ + & ((insn)->membership & ~INSN_ISA_MASK)) != 0 \ + || (cpu == CPU_R4650 && ((insn)->membership & INSN_4650) != 0) \ + || (cpu == CPU_RM7000 && ((insn)->membership & INSN_4650) != 0) \ + || (cpu == CPU_RM9000 && ((insn)->membership & INSN_4650) != 0) \ + || (cpu == CPU_R4010 && ((insn)->membership & INSN_4010) != 0) \ + || (cpu == CPU_VR4100 && ((insn)->membership & INSN_4100) != 0) \ + || (cpu == CPU_R3900 && ((insn)->membership & INSN_3900) != 0) \ + || ((cpu == CPU_R10000 || cpu == CPU_R12000 || cpu == CPU_R14000 \ + || cpu == CPU_R16000) \ + && ((insn)->membership & INSN_10000) != 0) \ + || (cpu == CPU_SB1 && ((insn)->membership & INSN_SB1) != 0) \ + || (cpu == CPU_R4111 && ((insn)->membership & INSN_4111) != 0) \ + || (cpu == CPU_VR4120 && ((insn)->membership & INSN_4120) != 0) \ + || (cpu == CPU_VR5400 && ((insn)->membership & INSN_5400) != 0) \ + || (cpu == CPU_VR5500 && ((insn)->membership & INSN_5500) != 0) \ + || (cpu == CPU_LOONGSON_2E \ + && ((insn)->membership & INSN_LOONGSON_2E) != 0) \ + || (cpu == CPU_LOONGSON_2F \ + && ((insn)->membership & INSN_LOONGSON_2F) != 0) \ + || (cpu == CPU_LOONGSON_3A \ + && ((insn)->membership & INSN_LOONGSON_3A) != 0) \ + || (cpu == CPU_OCTEON \ + && ((insn)->membership & INSN_OCTEON) != 0) \ + || (cpu == CPU_XLR && ((insn)->membership & INSN_XLR) != 0) \ + || 0) /* Please keep this term for easier source merging. */ + +/* This is a list of macro expanded instructions. + + _I appended means immediate + _A appended means address + _AB appended means address with base register + _D appended means 64 bit floating point constant + _S appended means 32 bit floating point constant. */ + +enum +{ + M_ABS, + M_ACLR_AB, + M_ACLR_OB, + M_ADD_I, + M_ADDU_I, + M_AND_I, + M_ASET_AB, + M_ASET_OB, + M_BALIGN, + M_BC1FL, + M_BC1TL, + M_BC2FL, + M_BC2TL, + M_BEQ, + M_BEQ_I, + M_BEQL, + M_BEQL_I, + M_BGE, + M_BGEL, + M_BGE_I, + M_BGEL_I, + M_BGEU, + M_BGEUL, + M_BGEU_I, + M_BGEUL_I, + M_BGEZ, + M_BGEZL, + M_BGEZALL, + M_BGT, + M_BGTL, + M_BGT_I, + M_BGTL_I, + M_BGTU, + M_BGTUL, + M_BGTU_I, + M_BGTUL_I, + M_BGTZ, + M_BGTZL, + M_BLE, + M_BLEL, + M_BLE_I, + M_BLEL_I, + M_BLEU, + M_BLEUL, + M_BLEU_I, + M_BLEUL_I, + M_BLEZ, + M_BLEZL, + M_BLT, + M_BLTL, + M_BLT_I, + M_BLTL_I, + M_BLTU, + M_BLTUL, + M_BLTU_I, + M_BLTUL_I, + M_BLTZ, + M_BLTZL, + M_BLTZALL, + M_BNE, + M_BNEL, + M_BNE_I, + M_BNEL_I, + M_CACHE_AB, + M_CACHE_OB, + M_DABS, + M_DADD_I, + M_DADDU_I, + M_DDIV_3, + M_DDIV_3I, + M_DDIVU_3, + M_DDIVU_3I, + M_DEXT, + M_DINS, + M_DIV_3, + M_DIV_3I, + M_DIVU_3, + M_DIVU_3I, + M_DLA_AB, + M_DLCA_AB, + M_DLI, + M_DMUL, + M_DMUL_I, + M_DMULO, + M_DMULO_I, + M_DMULOU, + M_DMULOU_I, + M_DREM_3, + M_DREM_3I, + M_DREMU_3, + M_DREMU_3I, + M_DSUB_I, + M_DSUBU_I, + M_DSUBU_I_2, + M_J_A, + M_JAL_1, + M_JAL_2, + M_JAL_A, + M_JALS_1, + M_JALS_2, + M_JALS_A, + M_L_DOB, + M_L_DAB, + M_LA_AB, + M_LB_A, + M_LB_AB, + M_LBU_A, + M_LBU_AB, + M_LCA_AB, + M_LD_A, + M_LD_OB, + M_LD_AB, + M_LDC1_AB, + M_LDC2_AB, + M_LDC2_OB, + M_LDC3_AB, + M_LDL_AB, + M_LDL_OB, + M_LDM_AB, + M_LDM_OB, + M_LDP_AB, + M_LDP_OB, + M_LDR_AB, + M_LDR_OB, + M_LH_A, + M_LH_AB, + M_LHU_A, + M_LHU_AB, + M_LI, + M_LI_D, + M_LI_DD, + M_LI_S, + M_LI_SS, + M_LL_AB, + M_LL_OB, + M_LLD_AB, + M_LLD_OB, + M_LS_A, + M_LW_A, + M_LW_AB, + M_LWC0_A, + M_LWC0_AB, + M_LWC1_A, + M_LWC1_AB, + M_LWC2_A, + M_LWC2_AB, + M_LWC2_OB, + M_LWC3_A, + M_LWC3_AB, + M_LWL_A, + M_LWL_AB, + M_LWL_OB, + M_LWM_AB, + M_LWM_OB, + M_LWP_AB, + M_LWP_OB, + M_LWR_A, + M_LWR_AB, + M_LWR_OB, + M_LWU_AB, + M_LWU_OB, + M_MSGSND, + M_MSGLD, + M_MSGLD_T, + M_MSGWAIT, + M_MSGWAIT_T, + M_MOVE, + M_MUL, + M_MUL_I, + M_MULO, + M_MULO_I, + M_MULOU, + M_MULOU_I, + M_NOR_I, + M_OR_I, + M_PREF_AB, + M_PREF_OB, + M_REM_3, + M_REM_3I, + M_REMU_3, + M_REMU_3I, + M_DROL, + M_ROL, + M_DROL_I, + M_ROL_I, + M_DROR, + M_ROR, + M_DROR_I, + M_ROR_I, + M_S_DA, + M_S_DOB, + M_S_DAB, + M_S_S, + M_SC_AB, + M_SC_OB, + M_SCD_AB, + M_SCD_OB, + M_SD_A, + M_SD_OB, + M_SD_AB, + M_SDC1_AB, + M_SDC2_AB, + M_SDC2_OB, + M_SDC3_AB, + M_SDL_AB, + M_SDL_OB, + M_SDM_AB, + M_SDM_OB, + M_SDP_AB, + M_SDP_OB, + M_SDR_AB, + M_SDR_OB, + M_SEQ, + M_SEQ_I, + M_SGE, + M_SGE_I, + M_SGEU, + M_SGEU_I, + M_SGT, + M_SGT_I, + M_SGTU, + M_SGTU_I, + M_SLE, + M_SLE_I, + M_SLEU, + M_SLEU_I, + M_SLT_I, + M_SLTU_I, + M_SNE, + M_SNE_I, + M_SB_A, + M_SB_AB, + M_SH_A, + M_SH_AB, + M_SW_A, + M_SW_AB, + M_SWC0_A, + M_SWC0_AB, + M_SWC1_A, + M_SWC1_AB, + M_SWC2_A, + M_SWC2_AB, + M_SWC2_OB, + M_SWC3_A, + M_SWC3_AB, + M_SWL_A, + M_SWL_AB, + M_SWL_OB, + M_SWM_AB, + M_SWM_OB, + M_SWP_AB, + M_SWP_OB, + M_SWR_A, + M_SWR_AB, + M_SWR_OB, + M_SUB_I, + M_SUBU_I, + M_SUBU_I_2, + M_TEQ_I, + M_TGE_I, + M_TGEU_I, + M_TLT_I, + M_TLTU_I, + M_TNE_I, + M_TRUNCWD, + M_TRUNCWS, + M_ULD, + M_ULD_A, + M_ULH, + M_ULH_A, + M_ULHU, + M_ULHU_A, + M_ULW, + M_ULW_A, + M_USH, + M_USH_A, + M_USW, + M_USW_A, + M_USD, + M_USD_A, + M_XOR_I, + M_COP0, + M_COP1, + M_COP2, + M_COP3, + M_NUM_MACROS +}; + + +/* The order of overloaded instructions matters. Label arguments and + register arguments look the same. Instructions that can have either + for arguments must apear in the correct order in this table for the + assembler to pick the right one. In other words, entries with + immediate operands must apear after the same instruction with + registers. + + Many instructions are short hand for other instructions (i.e., The + jal <register> instruction is short for jalr <register>). */ + +extern const struct mips_opcode mips_builtin_opcodes[]; +extern const int bfd_mips_num_builtin_opcodes; +extern struct mips_opcode *mips_opcodes; +extern int bfd_mips_num_opcodes; +#define NUMOPCODES bfd_mips_num_opcodes + + +/* The rest of this file adds definitions for the mips16 TinyRISC + processor. */ + +/* These are the bitmasks and shift counts used for the different + fields in the instruction formats. Other than OP, no masks are + provided for the fixed portions of an instruction, since they are + not needed. + + The I format uses IMM11. + + The RI format uses RX and IMM8. + + The RR format uses RX, and RY. + + The RRI format uses RX, RY, and IMM5. + + The RRR format uses RX, RY, and RZ. + + The RRI_A format uses RX, RY, and IMM4. + + The SHIFT format uses RX, RY, and SHAMT. + + The I8 format uses IMM8. + + The I8_MOVR32 format uses RY and REGR32. + + The IR_MOV32R format uses REG32R and MOV32Z. + + The I64 format uses IMM8. + + The RI64 format uses RY and IMM5. + */ + +#define MIPS16OP_MASK_OP 0x1f +#define MIPS16OP_SH_OP 11 +#define MIPS16OP_MASK_IMM11 0x7ff +#define MIPS16OP_SH_IMM11 0 +#define MIPS16OP_MASK_RX 0x7 +#define MIPS16OP_SH_RX 8 +#define MIPS16OP_MASK_IMM8 0xff +#define MIPS16OP_SH_IMM8 0 +#define MIPS16OP_MASK_RY 0x7 +#define MIPS16OP_SH_RY 5 +#define MIPS16OP_MASK_IMM5 0x1f +#define MIPS16OP_SH_IMM5 0 +#define MIPS16OP_MASK_RZ 0x7 +#define MIPS16OP_SH_RZ 2 +#define MIPS16OP_MASK_IMM4 0xf +#define MIPS16OP_SH_IMM4 0 +#define MIPS16OP_MASK_REGR32 0x1f +#define MIPS16OP_SH_REGR32 0 +#define MIPS16OP_MASK_REG32R 0x1f +#define MIPS16OP_SH_REG32R 3 +#define MIPS16OP_EXTRACT_REG32R(i) ((((i) >> 5) & 7) | ((i) & 0x18)) +#define MIPS16OP_MASK_MOVE32Z 0x7 +#define MIPS16OP_SH_MOVE32Z 0 +#define MIPS16OP_MASK_IMM6 0x3f +#define MIPS16OP_SH_IMM6 5 + +/* These are the characters which may appears in the args field of a MIPS16 + instruction. They appear in the order in which the fields appear when the + instruction is used. Commas and parentheses in the args string are ignored + when assembling, and written into the output when disassembling. + + "y" 3 bit register (MIPS16OP_*_RY) + "x" 3 bit register (MIPS16OP_*_RX) + "z" 3 bit register (MIPS16OP_*_RZ) + "Z" 3 bit register (MIPS16OP_*_MOVE32Z) + "v" 3 bit same register as source and destination (MIPS16OP_*_RX) + "w" 3 bit same register as source and destination (MIPS16OP_*_RY) + "0" zero register ($0) + "S" stack pointer ($sp or $29) + "P" program counter + "R" return address register ($ra or $31) + "X" 5 bit MIPS register (MIPS16OP_*_REGR32) + "Y" 5 bit MIPS register (MIPS16OP_*_REG32R) + "6" 6 bit unsigned break code (MIPS16OP_*_IMM6) + "a" 26 bit jump address + "e" 11 bit extension value + "l" register list for entry instruction + "L" register list for exit instruction + + The remaining codes may be extended. Except as otherwise noted, + the full extended operand is a 16 bit signed value. + "<" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 5 bit unsigned) + ">" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 5 bit unsigned) + "[" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 6 bit unsigned) + "]" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 6 bit unsigned) + "4" 4 bit signed immediate * 0 (MIPS16OP_*_IMM4) (full 15 bit signed) + "5" 5 bit unsigned immediate * 0 (MIPS16OP_*_IMM5) + "H" 5 bit unsigned immediate * 2 (MIPS16OP_*_IMM5) + "W" 5 bit unsigned immediate * 4 (MIPS16OP_*_IMM5) + "D" 5 bit unsigned immediate * 8 (MIPS16OP_*_IMM5) + "j" 5 bit signed immediate * 0 (MIPS16OP_*_IMM5) + "8" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8) + "V" 8 bit unsigned immediate * 4 (MIPS16OP_*_IMM8) + "C" 8 bit unsigned immediate * 8 (MIPS16OP_*_IMM8) + "U" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8) (full 16 bit unsigned) + "k" 8 bit signed immediate * 0 (MIPS16OP_*_IMM8) + "K" 8 bit signed immediate * 8 (MIPS16OP_*_IMM8) + "p" 8 bit conditional branch address (MIPS16OP_*_IMM8) + "q" 11 bit branch address (MIPS16OP_*_IMM11) + "A" 8 bit PC relative address * 4 (MIPS16OP_*_IMM8) + "B" 5 bit PC relative address * 8 (MIPS16OP_*_IMM5) + "E" 5 bit PC relative address * 4 (MIPS16OP_*_IMM5) + "m" 7 bit register list for save instruction (18 bit extended) + "M" 7 bit register list for restore instruction (18 bit extended) + */ + +/* Save/restore encoding for the args field when all 4 registers are + either saved as arguments or saved/restored as statics. */ +#define MIPS16_ALL_ARGS 0xe +#define MIPS16_ALL_STATICS 0xb + +/* For the mips16, we use the same opcode table format and a few of + the same flags. However, most of the flags are different. */ + +/* Modifies the register in MIPS16OP_*_RX. */ +#define MIPS16_INSN_WRITE_X 0x00000001 +/* Modifies the register in MIPS16OP_*_RY. */ +#define MIPS16_INSN_WRITE_Y 0x00000002 +/* Modifies the register in MIPS16OP_*_RZ. */ +#define MIPS16_INSN_WRITE_Z 0x00000004 +/* Modifies the T ($24) register. */ +#define MIPS16_INSN_WRITE_T 0x00000008 +/* Modifies the SP ($29) register. */ +#define MIPS16_INSN_WRITE_SP 0x00000010 +/* Modifies the RA ($31) register. */ +#define MIPS16_INSN_WRITE_31 0x00000020 +/* Modifies the general purpose register in MIPS16OP_*_REG32R. */ +#define MIPS16_INSN_WRITE_GPR_Y 0x00000040 +/* Reads the register in MIPS16OP_*_RX. */ +#define MIPS16_INSN_READ_X 0x00000080 +/* Reads the register in MIPS16OP_*_RY. */ +#define MIPS16_INSN_READ_Y 0x00000100 +/* Reads the register in MIPS16OP_*_MOVE32Z. */ +#define MIPS16_INSN_READ_Z 0x00000200 +/* Reads the T ($24) register. */ +#define MIPS16_INSN_READ_T 0x00000400 +/* Reads the SP ($29) register. */ +#define MIPS16_INSN_READ_SP 0x00000800 +/* Reads the RA ($31) register. */ +#define MIPS16_INSN_READ_31 0x00001000 +/* Reads the program counter. */ +#define MIPS16_INSN_READ_PC 0x00002000 +/* Reads the general purpose register in MIPS16OP_*_REGR32. */ +#define MIPS16_INSN_READ_GPR_X 0x00004000 +/* Is an unconditional branch insn. */ +#define MIPS16_INSN_UNCOND_BRANCH 0x00008000 +/* Is a conditional branch insn. */ +#define MIPS16_INSN_COND_BRANCH 0x00010000 + +/* The following flags have the same value for the mips16 opcode + table: + + INSN_ISA3 + + INSN_UNCOND_BRANCH_DELAY + INSN_COND_BRANCH_DELAY + INSN_COND_BRANCH_LIKELY (never used) + INSN_READ_HI + INSN_READ_LO + INSN_WRITE_HI + INSN_WRITE_LO + INSN_TRAP + FP_D (never used) + */ + +extern const struct mips_opcode mips16_opcodes[]; +extern const int bfd_mips16_num_opcodes; + +/* These are the bit masks and shift counts used for the different fields + in the microMIPS instruction formats. No masks are provided for the + fixed portions of an instruction, since they are not needed. */ + +#define MICROMIPSOP_MASK_IMMEDIATE 0xffff +#define MICROMIPSOP_SH_IMMEDIATE 0 +#define MICROMIPSOP_MASK_DELTA 0xffff +#define MICROMIPSOP_SH_DELTA 0 +#define MICROMIPSOP_MASK_CODE10 0x3ff +#define MICROMIPSOP_SH_CODE10 16 /* 10-bit wait code. */ +#define MICROMIPSOP_MASK_TRAP 0xf +#define MICROMIPSOP_SH_TRAP 12 /* 4-bit trap code. */ +#define MICROMIPSOP_MASK_SHAMT 0x1f +#define MICROMIPSOP_SH_SHAMT 11 +#define MICROMIPSOP_MASK_TARGET 0x3ffffff +#define MICROMIPSOP_SH_TARGET 0 +#define MICROMIPSOP_MASK_EXTLSB 0x1f /* "ext" LSB. */ +#define MICROMIPSOP_SH_EXTLSB 6 +#define MICROMIPSOP_MASK_EXTMSBD 0x1f /* "ext" MSBD. */ +#define MICROMIPSOP_SH_EXTMSBD 11 +#define MICROMIPSOP_MASK_INSMSB 0x1f /* "ins" MSB. */ +#define MICROMIPSOP_SH_INSMSB 11 +#define MICROMIPSOP_MASK_CODE 0x3ff +#define MICROMIPSOP_SH_CODE 16 /* 10-bit higher break code. */ +#define MICROMIPSOP_MASK_CODE2 0x3ff +#define MICROMIPSOP_SH_CODE2 6 /* 10-bit lower break code. */ +#define MICROMIPSOP_MASK_CACHE 0x1f +#define MICROMIPSOP_SH_CACHE 21 /* 5-bit cache op. */ +#define MICROMIPSOP_MASK_SEL 0x7 +#define MICROMIPSOP_SH_SEL 11 +#define MICROMIPSOP_MASK_OFFSET12 0xfff +#define MICROMIPSOP_SH_OFFSET12 0 +#define MICROMIPSOP_MASK_3BITPOS 0x7 +#define MICROMIPSOP_SH_3BITPOS 21 +#define MICROMIPSOP_MASK_STYPE 0x1f +#define MICROMIPSOP_SH_STYPE 16 +#define MICROMIPSOP_MASK_OFFSET10 0x3ff +#define MICROMIPSOP_SH_OFFSET10 6 +#define MICROMIPSOP_MASK_RS 0x1f +#define MICROMIPSOP_SH_RS 16 +#define MICROMIPSOP_MASK_RT 0x1f +#define MICROMIPSOP_SH_RT 21 +#define MICROMIPSOP_MASK_RD 0x1f +#define MICROMIPSOP_SH_RD 11 +#define MICROMIPSOP_MASK_FS 0x1f +#define MICROMIPSOP_SH_FS 16 +#define MICROMIPSOP_MASK_FT 0x1f +#define MICROMIPSOP_SH_FT 21 +#define MICROMIPSOP_MASK_FD 0x1f +#define MICROMIPSOP_SH_FD 11 +#define MICROMIPSOP_MASK_FR 0x1f +#define MICROMIPSOP_SH_FR 6 +#define MICROMIPSOP_MASK_RS3 0x1f +#define MICROMIPSOP_SH_RS3 6 +#define MICROMIPSOP_MASK_PREFX 0x1f +#define MICROMIPSOP_SH_PREFX 11 +#define MICROMIPSOP_MASK_BCC 0x7 +#define MICROMIPSOP_SH_BCC 18 +#define MICROMIPSOP_MASK_CCC 0x7 +#define MICROMIPSOP_SH_CCC 13 +#define MICROMIPSOP_MASK_COPZ 0x7fffff +#define MICROMIPSOP_SH_COPZ 3 + +#define MICROMIPSOP_MASK_MB 0x7 +#define MICROMIPSOP_SH_MB 23 +#define MICROMIPSOP_MASK_MC 0x7 +#define MICROMIPSOP_SH_MC 4 +#define MICROMIPSOP_MASK_MD 0x7 +#define MICROMIPSOP_SH_MD 7 +#define MICROMIPSOP_MASK_ME 0x7 +#define MICROMIPSOP_SH_ME 1 +#define MICROMIPSOP_MASK_MF 0x7 +#define MICROMIPSOP_SH_MF 3 +#define MICROMIPSOP_MASK_MG 0x7 +#define MICROMIPSOP_SH_MG 0 +#define MICROMIPSOP_MASK_MH 0x7 +#define MICROMIPSOP_SH_MH 7 +#define MICROMIPSOP_MASK_MI 0x7 +#define MICROMIPSOP_SH_MI 7 +#define MICROMIPSOP_MASK_MJ 0x1f +#define MICROMIPSOP_SH_MJ 0 +#define MICROMIPSOP_MASK_ML 0x7 +#define MICROMIPSOP_SH_ML 4 +#define MICROMIPSOP_MASK_MM 0x7 +#define MICROMIPSOP_SH_MM 1 +#define MICROMIPSOP_MASK_MN 0x7 +#define MICROMIPSOP_SH_MN 4 +#define MICROMIPSOP_MASK_MP 0x1f +#define MICROMIPSOP_SH_MP 5 +#define MICROMIPSOP_MASK_MQ 0x7 +#define MICROMIPSOP_SH_MQ 7 + +#define MICROMIPSOP_MASK_IMMA 0x7f +#define MICROMIPSOP_SH_IMMA 0 +#define MICROMIPSOP_MASK_IMMB 0x7 +#define MICROMIPSOP_SH_IMMB 1 +#define MICROMIPSOP_MASK_IMMC 0xf +#define MICROMIPSOP_SH_IMMC 0 +#define MICROMIPSOP_MASK_IMMD 0x3ff +#define MICROMIPSOP_SH_IMMD 0 +#define MICROMIPSOP_MASK_IMME 0x7f +#define MICROMIPSOP_SH_IMME 0 +#define MICROMIPSOP_MASK_IMMF 0xf +#define MICROMIPSOP_SH_IMMF 0 +#define MICROMIPSOP_MASK_IMMG 0xf +#define MICROMIPSOP_SH_IMMG 0 +#define MICROMIPSOP_MASK_IMMH 0xf +#define MICROMIPSOP_SH_IMMH 0 +#define MICROMIPSOP_MASK_IMMI 0x7f +#define MICROMIPSOP_SH_IMMI 0 +#define MICROMIPSOP_MASK_IMMJ 0xf +#define MICROMIPSOP_SH_IMMJ 0 +#define MICROMIPSOP_MASK_IMML 0xf +#define MICROMIPSOP_SH_IMML 0 +#define MICROMIPSOP_MASK_IMMM 0x7 +#define MICROMIPSOP_SH_IMMM 1 +#define MICROMIPSOP_MASK_IMMN 0x3 +#define MICROMIPSOP_SH_IMMN 4 +#define MICROMIPSOP_MASK_IMMO 0xf +#define MICROMIPSOP_SH_IMMO 0 +#define MICROMIPSOP_MASK_IMMP 0x1f +#define MICROMIPSOP_SH_IMMP 0 +#define MICROMIPSOP_MASK_IMMQ 0x7fffff +#define MICROMIPSOP_SH_IMMQ 0 +#define MICROMIPSOP_MASK_IMMU 0x1f +#define MICROMIPSOP_SH_IMMU 0 +#define MICROMIPSOP_MASK_IMMW 0x3f +#define MICROMIPSOP_SH_IMMW 1 +#define MICROMIPSOP_MASK_IMMX 0xf +#define MICROMIPSOP_SH_IMMX 1 +#define MICROMIPSOP_MASK_IMMY 0x1ff +#define MICROMIPSOP_SH_IMMY 1 + +/* Placeholders for fields that only exist in the traditional 32-bit + instruction encoding; see the comment above for details. */ +#define MICROMIPSOP_MASK_CODE20 0 +#define MICROMIPSOP_SH_CODE20 0 +#define MICROMIPSOP_MASK_PERFREG 0 +#define MICROMIPSOP_SH_PERFREG 0 +#define MICROMIPSOP_MASK_CODE19 0 +#define MICROMIPSOP_SH_CODE19 0 +#define MICROMIPSOP_MASK_ALN 0 +#define MICROMIPSOP_SH_ALN 0 +#define MICROMIPSOP_MASK_VECBYTE 0 +#define MICROMIPSOP_SH_VECBYTE 0 +#define MICROMIPSOP_MASK_VECALIGN 0 +#define MICROMIPSOP_SH_VECALIGN 0 +#define MICROMIPSOP_MASK_DSPACC 0 +#define MICROMIPSOP_SH_DSPACC 0 +#define MICROMIPSOP_MASK_DSPACC_S 0 +#define MICROMIPSOP_SH_DSPACC_S 0 +#define MICROMIPSOP_MASK_DSPSFT 0 +#define MICROMIPSOP_SH_DSPSFT 0 +#define MICROMIPSOP_MASK_DSPSFT_7 0 +#define MICROMIPSOP_SH_DSPSFT_7 0 +#define MICROMIPSOP_MASK_SA3 0 +#define MICROMIPSOP_SH_SA3 0 +#define MICROMIPSOP_MASK_SA4 0 +#define MICROMIPSOP_SH_SA4 0 +#define MICROMIPSOP_MASK_IMM8 0 +#define MICROMIPSOP_SH_IMM8 0 +#define MICROMIPSOP_MASK_IMM10 0 +#define MICROMIPSOP_SH_IMM10 0 +#define MICROMIPSOP_MASK_WRDSP 0 +#define MICROMIPSOP_SH_WRDSP 0 +#define MICROMIPSOP_MASK_RDDSP 0 +#define MICROMIPSOP_SH_RDDSP 0 +#define MICROMIPSOP_MASK_BP 0 +#define MICROMIPSOP_SH_BP 0 +#define MICROMIPSOP_MASK_MT_U 0 +#define MICROMIPSOP_SH_MT_U 0 +#define MICROMIPSOP_MASK_MT_H 0 +#define MICROMIPSOP_SH_MT_H 0 +#define MICROMIPSOP_MASK_MTACC_T 0 +#define MICROMIPSOP_SH_MTACC_T 0 +#define MICROMIPSOP_MASK_MTACC_D 0 +#define MICROMIPSOP_SH_MTACC_D 0 +#define MICROMIPSOP_MASK_BBITIND 0 +#define MICROMIPSOP_SH_BBITIND 0 +#define MICROMIPSOP_MASK_CINSPOS 0 +#define MICROMIPSOP_SH_CINSPOS 0 +#define MICROMIPSOP_MASK_CINSLM1 0 +#define MICROMIPSOP_SH_CINSLM1 0 +#define MICROMIPSOP_MASK_SEQI 0 +#define MICROMIPSOP_SH_SEQI 0 +#define MICROMIPSOP_SH_OFFSET_A 0 +#define MICROMIPSOP_MASK_OFFSET_A 0 +#define MICROMIPSOP_SH_OFFSET_B 0 +#define MICROMIPSOP_MASK_OFFSET_B 0 +#define MICROMIPSOP_SH_OFFSET_C 0 +#define MICROMIPSOP_MASK_OFFSET_C 0 +#define MICROMIPSOP_SH_RZ 0 +#define MICROMIPSOP_MASK_RZ 0 +#define MICROMIPSOP_SH_FZ 0 +#define MICROMIPSOP_MASK_FZ 0 + +/* These are the characters which may appears in the args field of a microMIPS + instruction. They appear in the order in which the fields appear + when the instruction is used. Commas and parentheses in the args + string are ignored when assembling, and written into the output + when disassembling. + + The followings are for 16-bit microMIPS instructions. + + "ma" must be $28 + "mc" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MC) at bit 4 + The same register used as both source and target. + "md" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MD) at bit 7 + "me" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_ME) at bit 1 + The same register used as both source and target. + "mf" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MF) at bit 3 + "mg" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MG) at bit 0 + "mh" MIPS registers 4, 5, 6 (MICROMIPSOP_*_MH) at bit 7 + "mi" MIPS registers 5, 6, 7, 21, 22 (MICROMIPSOP_*_MI) at bit 7 + ("mh" and "mi" form a valid 3-bit register pair) + "mj" 5-bit MIPS registers (MICROMIPSOP_*_MJ) at bit 0 + "ml" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_ML) at bit 4 + "mm" 3-bit MIPS registers 0, 2, 3, 16-20 (MICROMIPSOP_*_MM) at bit 1 + "mn" 3-bit MIPS registers 0, 2, 3, 16-20 (MICROMIPSOP_*_MN) at bit 4 + "mp" 5-bit MIPS registers (MICROMIPSOP_*_MP) at bit 5 + "mq" 3-bit MIPS registers 0, 2-7, 17 (MICROMIPSOP_*_MQ) at bit 7 + "mr" must be program counter + "ms" must be $29 + "mt" must be the same as the previous register + "mx" must be the same as the destination register + "my" must be $31 + "mz" must be $0 + + "mA" 7-bit immediate (-64 .. 63) << 2 (MICROMIPSOP_*_IMMA) + "mB" 3-bit immediate (-1, 1, 4, 8, 12, 16, 20, 24) (MICROMIPSOP_*_IMMB) + "mC" 4-bit immediate (1, 2, 3, 4, 7, 8, 15, 16, 31, 32, 63, 64, 128, 255, + 32768, 65535) (MICROMIPSOP_*_IMMC) + "mD" 10-bit branch address (-512 .. 511) << 1 (MICROMIPSOP_*_IMMD) + "mE" 7-bit branch address (-64 .. 63) << 1 (MICROMIPSOP_*_IMME) + "mF" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMMF) + "mG" 4-bit immediate (-1 .. 14) (MICROMIPSOP_*_IMMG) + "mH" 4-bit immediate (0 .. 15) << 1 (MICROMIPSOP_*_IMMH) + "mI" 7-bit immediate (-1 .. 126) (MICROMIPSOP_*_IMMI) + "mJ" 4-bit immediate (0 .. 15) << 2 (MICROMIPSOP_*_IMMJ) + "mL" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMML) + "mM" 3-bit immediate (1 .. 8) (MICROMIPSOP_*_IMMM) + "mN" 2-bit immediate (0 .. 3) for register list (MICROMIPSOP_*_IMMN) + "mO" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMML) + "mP" 5-bit immediate (0 .. 31) << 2 (MICROMIPSOP_*_IMMP) + "mU" 5-bit immediate (0 .. 31) << 2 (MICROMIPSOP_*_IMMU) + "mW" 6-bit immediate (0 .. 63) << 2 (MICROMIPSOP_*_IMMW) + "mX" 4-bit immediate (-8 .. 7) (MICROMIPSOP_*_IMMX) + "mY" 9-bit immediate (-258 .. -3, 2 .. 257) << 2 (MICROMIPSOP_*_IMMY) + "mZ" must be zero + + In most cases 32-bit microMIPS instructions use the same characters + as MIPS (with ADDIUPC being a notable exception, but there are some + others too). + + "." 10-bit signed offset/number (MICROMIPSOP_*_OFFSET10) + "1" 5-bit sync type (MICROMIPSOP_*_SHAMT) + "<" 5-bit shift amount (MICROMIPSOP_*_SHAMT) + ">" shift amount between 32 and 63, stored after subtracting 32 + (MICROMIPSOP_*_SHAMT) + "\" 3-bit position for ASET and ACLR (MICROMIPSOP_*_3BITPOS) + "|" 4-bit trap code (MICROMIPSOP_*_TRAP) + "~" 12-bit signed offset (MICROMIPSOP_*_OFFSET12) + "a" 26-bit target address (MICROMIPSOP_*_TARGET) + "b" 5-bit base register (MICROMIPSOP_*_RS) + "c" 10-bit higher breakpoint code (MICROMIPSOP_*_CODE) + "d" 5-bit destination register specifier (MICROMIPSOP_*_RD) + "h" 5-bit PREFX hint (MICROMIPSOP_*_PREFX) + "i" 16 bit unsigned immediate (MICROMIPSOP_*_IMMEDIATE) + "j" 16-bit signed immediate (MICROMIPSOP_*_DELTA) + "k" 5-bit cache opcode in target register position (MICROMIPSOP_*_CACHE) + "n" register list for 32-bit LWM/SWM instruction (MICROMIPSOP_*_RT) + "o" 16-bit signed offset (MICROMIPSOP_*_DELTA) + "p" 16-bit PC-relative branch target address (MICROMIPSOP_*_DELTA) + "q" 10-bit lower breakpoint code (MICROMIPSOP_*_CODE2) + "r" 5-bit same register used as both source and target (MICROMIPSOP_*_RS) + "s" 5-bit source register specifier (MICROMIPSOP_*_RS) + "t" 5-bit target register (MICROMIPSOP_*_RT) + "u" 16-bit upper 16 bits of address (MICROMIPSOP_*_IMMEDIATE) + "v" 5-bit same register used as both source and destination + (MICROMIPSOP_*_RS) + "w" 5-bit same register used as both target and destination + (MICROMIPSOP_*_RT) + "y" 5-bit source 3 register for ALNV.PS (MICROMIPSOP_*_RS3) + "z" must be zero register + "C" 23-bit coprocessor function code (MICROMIPSOP_*_COPZ) + "B" 8-bit syscall/wait function code (MICROMIPSOP_*_CODE10) + "K" 5-bit Hardware Register (RDHWR instruction) (MICROMIPSOP_*_RS) + + "+A" 5-bit INS/EXT/DINS/DEXT/DINSM/DEXTM position, which becomes + LSB (MICROMIPSOP_*_EXTLSB). + Enforces: 0 <= pos < 32. + "+B" 5-bit INS/DINS size, which becomes MSB (MICROMIPSOP_*_INSMSB). + Requires that "+A" or "+E" occur first to set position. + Enforces: 0 < (pos+size) <= 32. + "+C" 5-bit EXT/DEXT size, which becomes MSBD (MICROMIPSOP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 0 < (pos+size) <= 32. + (Also used by DEXT w/ different limits, but limits for + that are checked by the M_DEXT macro.) + "+E" 5-bit DINSU/DEXTU position, which becomes LSB-32 (MICROMIPSOP_*_EXTLSB). + Enforces: 32 <= pos < 64. + "+F" 5-bit DINSM/DINSU size, which becomes MSB-32 (MICROMIPSOP_*_INSMSB). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + "+G" 5-bit DEXTM size, which becomes MSBD-32 (MICROMIPSOP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + "+H" 5-bit DEXTU size, which becomes MSBD (MICROMIPSOP_*_EXTMSBD). + Requires that "+A" or "+E" occur first to set position. + Enforces: 32 < (pos+size) <= 64. + + PC-relative addition (ADDIUPC) instruction: + "mQ" 23-bit offset (-4194304 .. 4194303) << 2 (MICROMIPSOP_*_IMMQ) + "mb" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MB) at bit 23 + + Floating point instructions: + "D" 5-bit destination register (MICROMIPSOP_*_FD) + "M" 3-bit compare condition code (MICROMIPSOP_*_CCC) + "N" 3-bit branch condition code (MICROMIPSOP_*_BCC) + "R" 5-bit fr source 3 register (MICROMIPSOP_*_FR) + "S" 5-bit fs source 1 register (MICROMIPSOP_*_FS) + "T" 5-bit ft source 2 register (MICROMIPSOP_*_FT) + "V" 5-bit same register used as floating source and destination or target + (MICROMIPSOP_*_FS) + + Coprocessor instructions: + "E" 5-bit target register (MICROMIPSOP_*_RT) + "G" 5-bit destination register (MICROMIPSOP_*_RD) + "H" 3-bit sel field for (D)MTC* and (D)MFC* (MICROMIPSOP_*_SEL) + "+D" combined destination register ("G") and sel ("H") for CP0 ops, + for pretty-printing in disassembly only + + Macro instructions: + "A" general 32 bit expression + "I" 32-bit immediate (value placed in imm_expr). + "+I" 32-bit immediate (value placed in imm2_expr). + "F" 64-bit floating point constant in .rdata + "L" 64-bit floating point constant in .lit8 + "f" 32-bit floating point constant + "l" 32-bit floating point constant in .lit4 + + Other: + "()" parens surrounding optional value + "," separates operands + "+" start of extension sequence + "m" start of microMIPS extension sequence + + Characters used so far, for quick reference when adding more: + "1234567890" + "<>(),+.\|~" + "ABCDEFGHI KLMN RST V " + "abcd f hijklmnopqrstuvw yz" + + Extension character sequences used so far ("+" followed by the + following), for quick reference when adding more: + "" + "" + "ABCDEFGHI" + "" + + Extension character sequences used so far ("m" followed by the + following), for quick reference when adding more: + "" + "" + " BCDEFGHIJ LMNOPQ U WXYZ" + " bcdefghij lmn pq st xyz" +*/ + +extern const struct mips_opcode micromips_opcodes[]; +extern const int bfd_micromips_num_opcodes; + +/* A NOP insn impemented as "or at,at,zero". + Used to implement -mfix-loongson2f. */ +#define LOONGSON2F_NOP_INSN 0x00200825 + +#endif /* _MIPS_H_ */ |