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Diffstat (limited to 'include/opcode/mips.h')
| -rw-r--r-- | include/opcode/mips.h | 914 |
1 files changed, 914 insertions, 0 deletions
diff --git a/include/opcode/mips.h b/include/opcode/mips.h new file mode 100644 index 000000000..5c3ddfcd7 --- /dev/null +++ b/include/opcode/mips.h @@ -0,0 +1,914 @@ +/* mips.h. Mips opcode list for GDB, the GNU debugger. + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 + 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 +1, 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 COPYING. If not, write to the Free +Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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_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 + +#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 + +/* 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 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. + + "<" 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 position, which becomes LSB (OP_*_SHAMT). + Enforces: 0 <= pos < 32. + "+B" 5 bit ins 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 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 dins/dext position, which becomes LSB-32 (OP_*_SHAMT). + Enforces: 32 <= pos < 64. + "+F" 5 bit "dinsm" 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) + + 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: + "%[]<>(),+" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefhijklopqrstuvwxz" + + Extension character sequences used so far ("+" followed by the + following), for quick reference when adding more: + "ABCDEFGHI" +*/ + +/* 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 +/* Takes a trap (easier to keep out of delay slot). */ +#define INSN_TRAP 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 +/* Instruction synchronize shared memory. */ +#define INSN_SYNC 0x80000000 +/* Instruction reads MDMX accumulator. XXX FIXME: No bits left! */ +#define INSN_READ_MDMX_ACC 0 +/* Instruction writes MDMX accumulator. XXX FIXME: No bits left! */ +#define INSN_WRITE_MDMX_ACC 0 + +/* Instruction is actually a macro. It should be ignored by the + disassembler, and requires special treatment by the assembler. */ +#define INSN_MACRO 0xffffffff + +/* Masks used to mark instructions to indicate which MIPS ISA level + they were introduced in. ISAs, as defined below, are logical + ORs of these bits, indicating that they support the instructions + defined at the given level. */ + +#define INSN_ISA_MASK 0x00000fff +#define INSN_ISA1 0x00000001 +#define INSN_ISA2 0x00000002 +#define INSN_ISA3 0x00000004 +#define INSN_ISA4 0x00000008 +#define INSN_ISA5 0x00000010 +#define INSN_ISA32 0x00000020 +#define INSN_ISA64 0x00000040 +#define INSN_ISA32R2 0x00000080 +#define INSN_ISA64R2 0x00000100 + +/* Masks used for MIPS-defined ASEs. */ +#define INSN_ASE_MASK 0x0000f000 + +/* MIPS 16 ASE */ +#define INSN_MIPS16 0x00002000 +/* MIPS-3D ASE */ +#define INSN_MIPS3D 0x00004000 +/* MDMX ASE */ +#define INSN_MDMX 0x00008000 + +/* Chip specific instructions. These are bitmasks. */ + +/* 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 + +/* MIPS ISA defines, use instead of hardcoding ISA level. */ + +#define ISA_UNKNOWN 0 /* Gas internal use. */ +#define ISA_MIPS1 (INSN_ISA1) +#define ISA_MIPS2 (ISA_MIPS1 | INSN_ISA2) +#define ISA_MIPS3 (ISA_MIPS2 | INSN_ISA3) +#define ISA_MIPS4 (ISA_MIPS3 | INSN_ISA4) +#define ISA_MIPS5 (ISA_MIPS4 | INSN_ISA5) + +#define ISA_MIPS32 (ISA_MIPS2 | INSN_ISA32) +#define ISA_MIPS64 (ISA_MIPS5 | INSN_ISA32 | INSN_ISA64) + +#define ISA_MIPS32R2 (ISA_MIPS32 | INSN_ISA32R2) +#define ISA_MIPS64R2 (ISA_MIPS64 | INSN_ISA32R2 | 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_R10000 10000 +#define CPU_R12000 12000 +#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. */ + +/* 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) \ + (((insn)->membership & isa) != 0 \ + || (cpu == CPU_R4650 && ((insn)->membership & INSN_4650) != 0) \ + || (cpu == CPU_RM7000 && ((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) \ + && ((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) \ + || 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_ADD_I, + M_ADDU_I, + M_AND_I, + M_BEQ, + M_BEQ_I, + M_BEQL_I, + M_BGE, + M_BGEL, + M_BGE_I, + M_BGEL_I, + M_BGEU, + M_BGEUL, + M_BGEU_I, + M_BGEUL_I, + M_BGT, + M_BGTL, + M_BGT_I, + M_BGTL_I, + M_BGTU, + M_BGTUL, + M_BGTU_I, + M_BGTUL_I, + M_BLE, + M_BLEL, + M_BLE_I, + M_BLEL_I, + M_BLEU, + M_BLEUL, + M_BLEU_I, + M_BLEUL_I, + M_BLT, + M_BLTL, + M_BLT_I, + M_BLTL_I, + M_BLTU, + M_BLTUL, + M_BLTU_I, + M_BLTUL_I, + M_BNE, + M_BNE_I, + M_BNEL_I, + 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_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_LDC3_AB, + M_LDL_AB, + M_LDR_AB, + 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_LLD_AB, + 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_LWC3_A, + M_LWC3_AB, + M_LWL_A, + M_LWL_AB, + M_LWR_A, + M_LWR_AB, + M_LWU_AB, + M_MOVE, + M_MUL, + M_MUL_I, + M_MULO, + M_MULO_I, + M_MULOU, + M_MULOU_I, + M_NOR_I, + M_OR_I, + 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_SCD_AB, + M_SD_A, + M_SD_OB, + M_SD_AB, + M_SDC1_AB, + M_SDC2_AB, + M_SDC3_AB, + M_SDL_AB, + M_SDR_AB, + 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_SWC3_A, + M_SWC3_AB, + M_SWL_A, + M_SWL_AB, + M_SWR_A, + M_SWR_AB, + 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 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. + + "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) + */ + +/* 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 a branch insn. */ +#define MIPS16_INSN_BRANCH 0x00010000 + +/* The following flags have the same value for the mips16 opcode + table: + 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 + INSN_ISA3 + */ + +extern const struct mips_opcode mips16_opcodes[]; +extern const int bfd_mips16_num_opcodes; + +#endif /* _MIPS_H_ */ |