/* Mips opcde list for GDB, the GNU debugger. Copyright (C) 1989 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. */ #ifdef BITS_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 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 "c" branch condition "d" rd: destination register specifier "h" shamt: shift amount "f" funct: function field 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, /*li*/ "", 0}, {"li", op_bc(9,0,0), op_bc(0x3f,31,0), /*addiu*/ "t,j", 0}, {"b", one(4), 0xffff0000, /*beq*/ "b", 1}, {"move", op_func(0, 33), op_cond(0x3f,31)|0x7ff,/*addu*/ "d,s", 0}, {"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), "", 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}, /* co processor 0 instruction */ {"mfc0", op_rs_b11 (16, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"cfc0", op_rs_b11 (16, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"mtc0", op_rs_b11 (16, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"ctc0", op_rs_b11 (16, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 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}, /* co processor 2 instruction */ {"mfc2", op_rs_b11 (18, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"cfc2", op_rs_b11 (18, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"mtc2", op_rs_b11 (18, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"ctc2", op_rs_b11 (18, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 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}, /* co processor 3 instruction */ {"mtc3", op_rs_b11 (19, 0, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"cfc3", op_rs_b11 (19, 2, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"mtc3", op_rs_b11 (19, 4, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 0}, {"ctc3", op_rs_b11 (19, 6, 0), op_rs_b11(0x3f, 0x1f, 0x1ffff), "t,d", 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}, };