4.4BSD/usr/src/contrib/gdb-4.7.lbl/include/opcode/mips.h
/* Mips opcde list for GDB, the GNU debugger.
Copyright 1989, 1992 Free Software Foundation, Inc.
Contributed by Nobuyuki Hikichi(hikichi@sra.junet)
Made to work for little-endian machines, and debugged
by Per Bothner (bothner@cs.wisc.edu).
Many fixes contributed by Frank Yellin (fy@lucid.com).
This file is part of GDB.
GDB is free software; you can redistribute it and/or modify
it 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 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GDB; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* FIXME! This assumes that a host compiler will lay out
bit fields in a particular order based on its byte order.
Fix this with shifts and masks. */
#if HOST_BYTE_ORDER == BIG_ENDIAN
#define BIT_FIELDS_2(a,b) a;b;
#define BIT_FIELDS_4(a,b,c,d) a;b;c;d;
#define BIT_FIELDS_6(a,b,c,d,e,f) a;b;c;d;e;f;
#else
#define BIT_FIELDS_2(a,b) b;a;
#define BIT_FIELDS_4(a,b,c,d) d;c;b;a;
#define BIT_FIELDS_6(a,b,c,d,e,f) f;e;d;c;b;a;
#endif
struct op_i_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned immediate : 16)
};
struct op_j_fmt
{
BIT_FIELDS_2(
unsigned op : 6,
unsigned target : 26)
};
struct op_r_fmt
{
BIT_FIELDS_6(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned rd : 5,
unsigned shamt : 5,
unsigned funct : 6)
};
struct fop_i_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
unsigned immediate : 16)
};
struct op_b_fmt
{
BIT_FIELDS_4(
unsigned op : 6,
unsigned rs : 5,
unsigned rt : 5,
short delta : 16)
};
struct op_brk_fmt
{
BIT_FIELDS_4(
unsigned op: 6,
unsigned code: 10,
/* Kane states the breakpoint-code code field in BREAK is 20 bits. Yet MIPS
assemblers and debuggers only use ten bits. */
unsigned illdefined: 10,
unsigned spec: 6)
};
struct fop_r_fmt
{
BIT_FIELDS_6(
unsigned op : 6,
unsigned fmt : 5,
unsigned ft : 5,
unsigned fs : 5,
unsigned fd : 5,
unsigned funct : 6)
};
struct mips_opcode
{
char *name;
unsigned long opcode;
unsigned long match;
char *args;
int bdelay; /* Nonzero if delayed branch. */
};
/* args format;
"s" rs: source register specifier
"t" rt: target register
"i" immediate
"a" target address
"b" branch target address
"c" branch condition
"d" rd: destination register specifier
"h" shamt: shift amount
"f" funct: function field
"B" breakpoint code
for fpu
"S" fs source 1 register
"T" ft source 2 register
"D" distination register
*/
#define one(x) (x << 26)
#define op_func(x, y) ((x << 26) | y)
#define op_cond(x, y) ((x << 26) | (y << 16))
#define op_rs_func(x, y, z) ((x << 26) | (y << 21) | z)
#define op_rs_b11(x, y, z) ((x << 26) | (y << 21) | z)
#define op_o16(x, y) ((x << 26) | (y << 16))
#define op_bc(x, y, z) ((x << 26) | (y << 21) | (z << 16))
struct mips_opcode mips_opcodes[] =
{
/* These first opcodes are special cases of the ones in the comments */
{"nop", 0, 0xffffffff, /*sll*/ "", 0},
{"li", op_bc(9,0,0), op_bc(0x3f,31,0), /*addiu*/ "t,j", 0},
{"li", op_bc(13,0,0), op_bc(0x3f,31,0), /*ori*/ "t,i", 0},
{"move", op_func(0, 33), op_cond(0x3f,31)|0x7ff,/*addu*/ "d,s", 0},
{"b", one(4), 0xffff0000, /*beq*/ "b", 1},
{"b", op_cond (1, 1), op_cond(0x3f, 0x1f)|(0x1f << 21), /*bgez*/ "b", 1},
{"bal", op_cond (1, 17),op_cond(0x3f, 0x1f)|(0x1f << 21), /*bgezal*/ "b", 1},
{"sll", op_func(0, 0), op_func(0x3f, 0x3f), "d,t,h", 0},
{"srl", op_func(0, 2), op_func(0x3f, 0x3f), "d,t,h", 0},
{"sra", op_func(0, 3), op_func(0x3f, 0x3f), "d,t,h", 0},
{"sllv", op_func(0, 4), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"srlv", op_func(0, 6), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"srav", op_func(0, 7), op_func(0x3f, 0x7ff), "d,t,s", 0},
{"jr", op_func(0, 8), op_func(0x3f, 0x1fffff), "s", 1},
{"jalr", op_func(0, 9), op_func(0x3f, 0x1f07ff), "d,s", 1},
{"syscall", op_func(0, 12), op_func(0x3f, 0x3f), "", 0},
{"break", op_func(0, 13), op_func(0x3f, 0x3f), "B", 0},
{"mfhi", op_func(0, 16), op_func(0x3f, 0x03ff07ff), "d", 0},
{"mthi", op_func(0, 17), op_func(0x3f, 0x1fffff), "s", 0},
{"mflo", op_func(0, 18), op_func(0x3f, 0x03ff07ff), "d", 0},
{"mtlo", op_func(0, 19), op_func(0x3f, 0x1fffff), "s", 0},
{"mult", op_func(0, 24), op_func(0x3f, 0xffff), "s,t", 0},
{"multu", op_func(0, 25), op_func(0x3f, 0xffff), "s,t", 0},
{"div", op_func(0, 26), op_func(0x3f, 0xffff), "s,t", 0},
{"divu", op_func(0, 27), op_func(0x3f, 0xffff), "s,t", 0},
{"add", op_func(0, 32), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"addu", op_func(0, 33), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"sub", op_func(0, 34), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"subu", op_func(0, 35), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"and", op_func(0, 36), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"or", op_func(0, 37), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"xor", op_func(0, 38), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"nor", op_func(0, 39), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"slt", op_func(0, 42), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"sltu", op_func(0, 43), op_func(0x3f, 0x7ff), "d,s,t", 0},
{"bltz", op_cond (1, 0), op_cond(0x3f, 0x1f), "s,b", 1},
{"bgez", op_cond (1, 1), op_cond(0x3f, 0x1f), "s,b", 1},
{"bltzal", op_cond (1, 16),op_cond(0x3f, 0x1f), "s,b", 1},
{"bgezal", op_cond (1, 17),op_cond(0x3f, 0x1f), "s,b", 1},
{"j", one(2), one(0x3f), "a", 1},
{"jal", one(3), one(0x3f), "a", 1},
{"beq", one(4), one(0x3f), "s,t,b", 1},
{"bne", one(5), one(0x3f), "s,t,b", 1},
{"blez", one(6), one(0x3f) | 0x1f0000, "s,b", 1},
{"bgtz", one(7), one(0x3f) | 0x1f0000, "s,b", 1},
{"addi", one(8), one(0x3f), "t,s,j", 0},
{"addiu", one(9), one(0x3f), "t,s,j", 0},
{"slti", one(10), one(0x3f), "t,s,j", 0},
{"sltiu", one(11), one(0x3f), "t,s,j", 0},
{"andi", one(12), one(0x3f), "t,s,i", 0},
{"ori", one(13), one(0x3f), "t,s,i", 0},
{"xori", one(14), one(0x3f), "t,s,i", 0},
/* rs field is don't care field? */
{"lui", one(15), one(0x3f), "t,i", 0},
/* Coprocessor 0 instructions */
/* `S' is not quite right for 2nd operand -- should be coproc reg, not
float reg.*/
{"mfc0", op_rs_b11 (16, 0, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"cfc0", op_rs_b11 (16, 2, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"mtc0", op_rs_b11 (16, 4, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"ctc0", op_rs_b11 (16, 6, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"bc0f", op_o16(16, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0f", op_o16(16, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0t", op_o16(16, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc0t", op_o16(16, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
{"tlbr", op_rs_func(16, 0x10, 1), ~0, "", 0},
{"tlbwi", op_rs_func(16, 0x10, 2), ~0, "", 0},
{"tlbwr", op_rs_func(16, 0x10, 6), ~0, "", 0},
{"tlbp", op_rs_func(16, 0x10, 8), ~0, "", 0},
{"rfe", op_rs_func(16, 0x10, 16), ~0, "", 0},
{"mfc1", op_rs_b11 (17, 0, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"cfc1", op_rs_b11 (17, 2, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"mtc1", op_rs_b11 (17, 4, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"ctc1", op_rs_b11 (17, 6, 0), op_rs_b11(0x3f, 0x1f, 0),"t,S", 0},
{"bc1f", op_o16(17, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1f", op_o16(17, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1t", op_o16(17, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc1t", op_o16(17, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
/* fpu instruction */
{"add.s", op_rs_func(17, 0x10, 0),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"add.d", op_rs_func(17, 0x11, 0),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"sub.s", op_rs_func(17, 0x10, 1),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"sub.d", op_rs_func(17, 0x11, 1),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"mul.s", op_rs_func(17, 0x10, 2),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"mul.d", op_rs_func(17, 0x11, 2),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"div.s", op_rs_func(17, 0x10, 3),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"div.d", op_rs_func(17, 0x11, 3),
op_rs_func(0x3f, 0x1f, 0x3f), "D,S,T", 0},
{"abs.s", op_rs_func(17, 0x10, 5),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"abs.d", op_rs_func(17, 0x11, 5),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"mov.s", op_rs_func(17, 0x10, 6),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"mov.d", op_rs_func(17, 0x11, 6),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"neg.s", op_rs_func(17, 0x10, 7),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"neg.d", op_rs_func(17, 0x11, 7),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.s", op_rs_func(17, 0x10, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.d", op_rs_func(17, 0x11, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.s.w", op_rs_func(17, 0x14, 32),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.s", op_rs_func(17, 0x10, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.d", op_rs_func(17, 0x11, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.d.w", op_rs_func(17, 0x14, 33),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.w.s", op_rs_func(17, 0x10, 36),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"cvt.w.d", op_rs_func(17, 0x11, 36),
op_rs_func(0x3f, 0x1f, 0x1f003f), "D,S", 0},
{"c.f.s", op_rs_func(17, 0x10, 48),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.f.d", op_rs_func(17, 0x11, 48),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.un.s", op_rs_func(17, 0x10, 49),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.un.d", op_rs_func(17, 0x11, 49),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.eq.s", op_rs_func(17, 0x10, 50),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.eq.d", op_rs_func(17, 0x11, 50),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ueq.s", op_rs_func(17, 0x10, 51),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ueq.d", op_rs_func(17, 0x11, 51),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.olt.s", op_rs_func(17, 0x10, 52),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.olt.d", op_rs_func(17, 0x11, 52),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ult.s", op_rs_func(17, 0x10, 53),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ult.d", op_rs_func(17, 0x11, 53),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ole.s", op_rs_func(17, 0x10, 54),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ole.d", op_rs_func(17, 0x11, 54),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ule.s", op_rs_func(17, 0x10, 55),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ule.d", op_rs_func(17, 0x11, 55),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.sf.s", op_rs_func(17, 0x10, 56),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.sf.d", op_rs_func(17, 0x11, 56),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngle.s", op_rs_func(17, 0x10, 57),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngle.d", op_rs_func(17, 0x11, 57),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.seq.s", op_rs_func(17, 0x10, 58),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.seq.d", op_rs_func(17, 0x11, 58),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngl.s", op_rs_func(17, 0x10, 59),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngl.d", op_rs_func(17, 0x11, 59),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.lt.s", op_rs_func(17, 0x10, 60),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.lt.d", op_rs_func(17, 0x11, 60),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.nge.s", op_rs_func(17, 0x10, 61),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.nge.d", op_rs_func(17, 0x11, 61),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.le.s", op_rs_func(17, 0x10, 62),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.le.d", op_rs_func(17, 0x11, 62),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngt.s", op_rs_func(17, 0x10, 63),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
{"c.ngt.d", op_rs_func(17, 0x11, 63),
op_rs_func(0x3f, 0x1f, 0x7ff), "S,T", 0},
/* Coprocessor 2 instruction */
/* `S' is not quite right for 2nd operand -- should be coproc reg, not
float reg.*/
{"mfc2", op_rs_b11 (18, 0, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"cfc2", op_rs_b11 (18, 2, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"mtc2", op_rs_b11 (18, 4, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"ctc2", op_rs_b11 (18, 6, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"bc2f", op_o16(18, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2f", op_o16(18, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2f", op_o16(18, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc2t", op_o16(18, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
/* Coprocessor 3 instruction */
/* `S' is not quite right for 2nd operand -- should be coproc reg, not
float reg.*/
{"mfc3", op_rs_b11 (19, 0, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"cfc3", op_rs_b11 (19, 2, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"mtc3", op_rs_b11 (19, 4, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"ctc3", op_rs_b11 (19, 6, 0), op_rs_b11(0x3f, 0x1f, 0x7ff), "t,S", 0},
{"bc3f", op_o16(19, 0x100), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3f", op_o16(19, 0x180), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3t", op_o16(19, 0x101), op_o16(0x3f, 0x3ff), "b", 1},
{"bc3t", op_o16(19, 0x181), op_o16(0x3f, 0x3ff), "b", 1},
{"lb", one(32), one(0x3f), "t,j(s)", 0},
{"lh", one(33), one(0x3f), "t,j(s)", 0},
{"lwl", one(34), one(0x3f), "t,j(s)", 0},
{"lw", one(35), one(0x3f), "t,j(s)", 0},
{"lbu", one(36), one(0x3f), "t,j(s)", 0},
{"lhu", one(37), one(0x3f), "t,j(s)", 0},
{"lwr", one(38), one(0x3f), "t,j(s)", 0},
{"sb", one(40), one(0x3f), "t,j(s)", 0},
{"sh", one(41), one(0x3f), "t,j(s)", 0},
{"swl", one(42), one(0x3f), "t,j(s)", 0},
{"swr", one(46), one(0x3f), "t,j(s)", 0},
{"sw", one(43), one(0x3f), "t,j(s)", 0},
{"lwc0", one(48), one(0x3f), "t,j(s)", 0},
/* for fpu */
{"lwc1", one(49), one(0x3f), "T,j(s)", 0},
{"lwc2", one(50), one(0x3f), "t,j(s)", 0},
{"lwc3", one(51), one(0x3f), "t,j(s)", 0},
{"swc0", one(56), one(0x3f), "t,j(s)", 0},
/* for fpu */
{"swc1", one(57), one(0x3f), "T,j(s)", 0},
{"swc2", one(58), one(0x3f), "t,j(s)", 0},
{"swc3", one(59), one(0x3f), "t,j(s)", 0},
};