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[/] [or1k/] [trunk/] [insight/] [opcodes/] [or32.c] - Rev 174
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/* Table of opcodes for the OpenRISC 1000 ISA. Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. Contributed by Damjan Lampret (lampret@opencores.org). This file is part of gen_or1k_isa, or1k, GDB and GAS. This program 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 2 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* We treat all letters the same in encode/decode routines so we need to assign some characteristics to them like signess etc.*/ #include <string.h> #include <stdio.h> #include <stdlib.h> #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "parse.h" #include "opcode/or32.h" /* **INDENT-OFF** */ CONST struct or32_letter or32_letters[] = { { 'A', NUM_UNSIGNED }, { 'B', NUM_UNSIGNED }, { 'D', NUM_UNSIGNED }, { 'I', NUM_SIGNED }, { 'K', NUM_UNSIGNED }, { 'L', NUM_UNSIGNED }, { 'N', NUM_SIGNED }, { '0', NUM_UNSIGNED }, { '\0', 0 } /* dummy entry */ }; /* Opcode encoding: machine[31:30]: first two bits of opcode 00 - neither of source operands is GPR 01 - second source operand is GPR (rB) 10 - first source operand is GPR (rA) 11 - both source operands are GPRs (rA and rB) machine[29:26]: next four bits of opcode machine[25:00]: instruction operands (specific to individual instruction) Recommendation: irrelevant instruction bits should be set with a value of bits in same positions of instruction preceding current instruction in the code (when assembling). */ #define EFN &l_none #ifdef HAS_EXECUTION #define EF(func) &(func) #define EFI &l_invalid #else /* HAS_EXECUTION */ #define EF(func) EFN #define EFI EFN #endif /* HAS_EXECUTION */ CONST struct or32_opcode or32_opcodes[] = { { "l.j", "N", "00 0x0 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY }, { "l.jal", "N", "00 0x1 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY }, { "l.bnf", "N", "00 0x3 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG}, { "l.bf", "N", "00 0x4 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG }, { "l.nop", "", "00 0x5 01--- ----- ---- ---- ---- ----", EF(l_nop), 0 }, { "l.movhi", "rD,K", "00 0x6 DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/ { "l.macrc", "rD", "00 0x6 DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/ { "l.mfspr", "rD,rA,K", "00 0x7 DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 }, { "l.sys", "K", "00 0x8 00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 }, { "l.trap", "K", "00 0x8 01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */ { "l.msync", "", "00 0x8 10000 00000 0000 0000 0000 0000", EFN, 0 }, { "l.psync", "", "00 0x8 10100 00000 0000 0000 0000 0000", EFN, 0 }, { "l.csync", "", "00 0x8 11000 00000 0000 0000 0000 0000", EFN, 0 }, { "l.rfe", "", "00 0x9 ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY }, { "lv.all_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, { "lv.all_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, { "lv.all_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, { "lv.all_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, { "lv.all_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, { "lv.all_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, { "lv.all_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, { "lv.all_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, { "lv.all_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, { "lv.all_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, { "lv.all_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, { "lv.all_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, { "lv.any_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 }, { "lv.any_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 }, { "lv.any_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 }, { "lv.any_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 }, { "lv.any_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 }, { "lv.any_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 }, { "lv.any_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 }, { "lv.any_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 }, { "lv.any_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 }, { "lv.any_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 }, { "lv.any_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 }, { "lv.any_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 }, { "lv.add.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 }, { "lv.add.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 }, { "lv.adds.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 }, { "lv.adds.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 }, { "lv.addu.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 }, { "lv.addu.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 }, { "lv.addus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 }, { "lv.addus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 }, { "lv.and", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 }, { "lv.avg.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 }, { "lv.avg.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 }, { "lv.cmp_eq.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 }, { "lv.cmp_eq.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 }, { "lv.cmp_ge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 }, { "lv.cmp_ge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 }, { "lv.cmp_gt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 }, { "lv.cmp_gt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 }, { "lv.cmp_le.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 }, { "lv.cmp_le.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 }, { "lv.cmp_lt.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 }, { "lv.cmp_lt.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 }, { "lv.cmp_ne.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 }, { "lv.cmp_ne.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 }, { "lv.madds.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 }, { "lv.max.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 }, { "lv.max.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 }, { "lv.merge.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 }, { "lv.merge.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 }, { "lv.min.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 }, { "lv.min.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 }, { "lv.msubs.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 }, { "lv.muls.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 }, { "lv.nand", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 }, { "lv.nor", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 }, { "lv.or", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 }, { "lv.pack.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 }, { "lv.pack.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 }, { "lv.packs.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 }, { "lv.packs.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 }, { "lv.packus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 }, { "lv.packus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 }, { "lv.perm.n", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 }, { "lv.rl.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 }, { "lv.rl.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 }, { "lv.sll.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 }, { "lv.sll.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 }, { "lv.sll", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 }, { "lv.srl.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 }, { "lv.srl.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 }, { "lv.sra.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 }, { "lv.sra.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 }, { "lv.srl", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 }, { "lv.sub.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 }, { "lv.sub.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 }, { "lv.subs.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 }, { "lv.subs.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 }, { "lv.subu.b", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 }, { "lv.subu.h", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 }, { "lv.subus.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 }, { "lv.subus.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 }, { "lv.unpack.b","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 }, { "lv.unpack.h","rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 }, { "lv.xor", "rD,rA,rB", "00 0xA DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 }, { "lv.cust1", "", "00 0xA ----- ----- ---- ---- 0xC ----", EFI, 0 }, { "lv.cust2", "", "00 0xA ----- ----- ---- ---- 0xD ----", EFI, 0 }, { "lv.cust3", "", "00 0xA ----- ----- ---- ---- 0xE ----", EFI, 0 }, { "lv.cust4", "", "00 0xA ----- ----- ---- ---- 0xF ----", EFI, 0 }, { "lf.add.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, { "lf.sub.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, { "lf.mul.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, { "lf.div.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, { "lf.itof.s", "rD,rA", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, { "lf.ftoi.s", "rD,rA", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, { "lf.rem.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, { "lf.madd.s", "rD,rA,rB", "00 0xB DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, { "lf.sfeq.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, { "lf.sfne.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, { "lf.sfgt.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, { "lf.sfge.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, { "lf.sflt.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 }, { "lf.sfle.s", "rA,rB", "00 0xB ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 }, { "lf.cust1.s", "", "00 0xB ----- ----- ---- ---- 0xE ----", EFI, 0 }, { "lf.add.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, { "lf.sub.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, { "lf.mul.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 }, { "lf.div.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 }, { "lf.itof.d", "rD,rA", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 }, { "lf.ftoi.d", "rD,rA", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 }, { "lf.rem.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 }, { "lf.madd.d", "rD,rA,rB", "00 0xC DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 }, { "lf.sfeq.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 }, { "lf.sfne.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 }, { "lf.sfgt.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 }, { "lf.sfge.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 }, { "lf.sflt.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 }, { "lf.sfle.d", "rA,rB", "00 0xC ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 }, { "lf.cust1.d", "", "00 0xC ----- ----- ---- ---- 0xE ----", EFI, 0 }, { "lvf.ld", "rD,0(rA)", "00 0xD DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 }, { "lvf.lw", "rD,0(rA)", "00 0xD DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 }, { "lvf.sd", "0(rA),rB", "00 0xD ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 }, { "lvf.sw", "0(rA),rB", "00 0xD ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 }, { "l.mtspr", "rA,rB,K", "01 0x0 KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 }, { "l.jr", "rB", "01 0x1 ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY }, { "l.jalr", "rB", "01 0x2 ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY }, { "l.cust1", "", "01 0xC ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 }, { "l.cust2", "", "01 0xD ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 }, { "l.cust3", "", "01 0xE ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 }, { "l.cust4", "", "01 0xF ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 }, { "l.ld", "rD,I(rA)", "10 0x0 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, { "l.lwz", "rD,I(rA)", "10 0x1 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 }, { "l.lws", "rD,I(rA)", "10 0x2 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, { "l.lbz", "rD,I(rA)", "10 0x3 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 }, { "l.lbs", "rD,I(rA)", "10 0x4 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 }, { "l.lhz", "rD,I(rA)", "10 0x5 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 }, { "l.lhs", "rD,I(rA)", "10 0x6 DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 }, { "l.addi", "rD,rA,I", "10 0x7 DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), 0 }, { "l.addic", "rD,rA,I", "10 0x8 DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, { "l.andi", "rD,rA,K", "10 0x9 DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), 0 }, { "l.ori", "rD,rA,K", "10 0xA DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0 }, { "l.xori", "rD,rA,I", "10 0xB DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 }, { "l.muli", "rD,rA,I", "10 0xC DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 }, { "l.maci", "rA,I", "10 0xD ----- AAAAA IIII IIII IIII IIII", EF(l_mac), 0 }, { "l.slli", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 }, { "l.srli", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 }, { "l.srai", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 }, { "l.rori", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 }, { "l.sfeqi", "rA,I", "10 0xF 00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG }, { "l.sfnei", "rA,I", "10 0xF 00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG }, { "l.sfgtui", "rA,I", "10 0xF 00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG }, { "l.sfgeui", "rA,I", "10 0xF 00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG }, { "l.sfltui", "rA,I", "10 0xF 00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG }, { "l.sfleui", "rA,I", "10 0xF 00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG }, { "l.sfgtsi", "rA,I", "10 0xF 01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG }, { "l.sfgesi", "rA,I", "10 0xF 01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG }, { "l.sfltsi", "rA,I", "10 0xF 01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG }, { "l.sflesi", "rA,I", "10 0xF 01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG }, { "l.sd", "I(rA),rB", "11 0x4 IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 }, { "l.sw", "I(rA),rB", "11 0x5 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 }, { "l.sb", "I(rA),rB", "11 0x6 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 }, { "l.sh", "I(rA),rB", "11 0x7 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 }, { "l.add", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), 0 }, { "l.addc", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 }, { "l.sub", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 }, { "l.and", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), 0 }, { "l.or", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 }, { "l.xor", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 }, { "l.mul", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 }, { "l.mac", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 0--- 0x7", EF(l_mac), 0 }, /*MM*/ { "l.msb", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 1--- 0x7", EF(l_msb), 0 }, /*MM*/ { "l.sll", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 }, { "l.srl", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 }, { "l.sra", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 }, { "l.ror", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 }, { "l.div", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 }, { "l.divu", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 }, { "l.mulu", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 }, { "l.exths", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0xC", EFI, 0 }, { "l.extbs", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0xC", EFI, 0 }, { "l.exthz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 10-- 0xC", EFI, 0 }, { "l.extbz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 11-- 0xC", EFI, 0 }, { "l.extws", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 00-- 0xD", EFI, 0 }, { "l.extwz", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 01-- 0xD", EFI, 0 }, { "l.cmov", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xE", EFI, 0 }, { "l.ff1", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 }, { "l.sfeq", "rA,rB", "11 0x9 00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG }, { "l.sfne", "rA,rB", "11 0x9 00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG }, { "l.sfgtu", "rA,rB", "11 0x9 00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG }, { "l.sfgeu", "rA,rB", "11 0x9 00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG }, { "l.sfltu", "rA,rB", "11 0x9 00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG }, { "l.sfleu", "rA,rB", "11 0x9 00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG }, { "l.sfgts", "rA,rB", "11 0x9 01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG }, { "l.sfges", "rA,rB", "11 0x9 01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG }, { "l.sflts", "rA,rB", "11 0x9 01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG }, { "l.sfles", "rA,rB", "11 0x9 01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG }, { "l.cust5", "", "11 0xC ----- ----- ---- ---- ---- ----", EFI, 0 }, { "l.cust6", "", "11 0xD ----- ----- ---- ---- ---- ----", EFI, 0 }, { "l.cust7", "", "11 0xE ----- ----- ---- ---- ---- ----", EFI, 0 }, { "l.cust8", "", "11 0xF ----- ----- ---- ---- ---- ----", EFI, 0 }, { "", "", "", EFI, 0 } /* Dummy entry, not included in num_opcodes. This lets code examine entry i+1 without checking if we've run off the end of the table. */ }; #undef EFI #undef EFN #undef EF /* **INDENT-ON** */ CONST unsigned int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1; /* Calculates instruction length in bytes. Always 4 for OR32. */ int insn_len(int insn_index) { insn_index = 0; /* Just to get rid that warning. */ return 4; } /* Is individual insn's operand signed or unsigned? */ int letter_signed(char l) { CONST struct or32_letter *pletter; for(pletter = or32_letters; pletter->letter != '\0'; pletter++) if (pletter->letter == l) return pletter->sign; printf("letter_signed(%c): Unknown letter.\n", l); return 0; } /* Number of letters in the individual lettered operand. */ int letter_range(char l) { CONST struct or32_opcode *pinsn; char *enc; int range = 0; for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++) { if (strchr(pinsn->encoding,l)) { for (enc = pinsn->encoding; *enc != '\0'; enc++) if ((*enc == '0') && (*(enc+1) == 'x')) enc += 2; else if (*enc == l) range++; return range; } } printf("\nABORT: letter_range(%c): Never used letter.\n", l); exit(1); } /* MM: Returns index of given instruction name. */ int insn_index (char *insn) { int i, found = -1; for (i = 0; (unsigned int)i < num_opcodes; i++) if (!strcmp (or32_opcodes[i].name, insn)) { found = i; break; } return found; } CONST char *insn_name(int index) { if (index >= 0 && (unsigned int)index < num_opcodes) return or32_opcodes[index].name; else return "???"; } void l_none() { } /*** Finite automata for instruction decoding building code ***/ /* Find simbols in encoding. */ static unsigned long insn_extract(param_ch, enc_initial) char param_ch; char *enc_initial; { char *enc; unsigned long ret = 0; unsigned opc_pos = 32; for (enc = enc_initial; *enc != '\0'; ) if ((*enc == '0') && (*(enc+1) == 'x')) { unsigned long tmp = strtol(enc+2, NULL, 16); opc_pos -= 4; if (param_ch == '0' || param_ch == '1') { if (param_ch == '0') tmp = 15 - tmp; ret |= tmp << opc_pos; } enc += 3; } else { if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) ) { opc_pos--; if (param_ch == *enc) ret |= 1 << opc_pos; } enc++; } return ret; } #define MAX_AUTOMATA_SIZE (1200) #define MAX_OP_TABLE_SIZE (1200) #define LEAF_FLAG (0x80000000) #define MAX_LEN (8) #ifndef MIN # define MIN(x,y) ((x) < (y) ? (x) : (y)) #endif unsigned long *automata; int nuncovered; int curpass = 0; /* MM: Struct that hold runtime build information about instructions. */ struct temp_insn_struct { unsigned long insn; unsigned long insn_mask; int in_pass; } *ti; struct insn_op_struct *op_data, **op_start; /* Recursive utility function used to find best match and to build automata. */ static unsigned long * cover_insn (unsigned long *cur, int pass, unsigned int mask) { int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0; unsigned long cur_mask = mask; unsigned long *next; for (i = 0; i < num_opcodes; i++) if (ti[i].in_pass == pass) { cur_mask &= ti[i].insn_mask; ninstr++; last_match = i; } debug("%08X %08X\n", mask, cur_mask); if (ninstr == 0) return 0; if (ninstr == 1) { /* Leaf holds instruction index. */ debug("%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name); *cur = LEAF_FLAG | last_match; cur++; nuncovered--; } else { /* Find longest match. */ for (i = 0; i < 32; i++) { int len; for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++) { unsigned long m = (1UL << ((unsigned long)len)) - 1; /*debug(" (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);*/ if ((m & (cur_mask >> (unsigned)i)) == m) { best_len = len; best_first = i; /*debug("!");*/ } else break; } } /*debug("\n");*/ if (!best_len) { fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask); for (i = 0; i < num_opcodes; i++) if (ti[i].in_pass == pass) fprintf (stderr, "%s ", or32_opcodes[i].name); fprintf (stderr, "\n"); exit (1); } debug("%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr); *cur = best_first; cur++; *cur = (1 << best_len) - 1; cur++; next = cur; /* Allocate space for pointers. */ cur += 1 << best_len; cur_mask = (1 << (unsigned long)best_len) - 1; for (i = 0; i < (1 << (unsigned long)best_len); i++) { int j; unsigned long *c; curpass++; for (j = 0; j < num_opcodes; j++) if (ti[j].in_pass == pass && ((ti[j].insn >> best_first) & cur_mask) == i && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask) ti[j].in_pass = curpass; /*debug("%08X %08X %i\n", mask, cur_mask, best_first);*/ c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first))); if (c) { debug("%i> #%X -> %u\n", next - automata, i, cur - automata); *next = cur - automata; cur = c; } else { debug("%i> N/A\n", next - automata); *next = 0; } next++; } } return cur; } /* Returns number of nonzero bits. */ static int num_ones (unsigned long value) { int c = 0; while (value) { if (value & 1) c++; value >>= 1; } return c; } /* Utility function, which converts parameters from or32_opcode format to more binary form. Parameters are stored in ti struct. */ static struct insn_op_struct * parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur) { char *args = opcode->args; int i, type; i = 0; type = 0; while (*args != '\0') { if (*args == 'r') { args++; type |= OPTYPE_REG; } else if (isalpha (*args)) { unsigned long arg; arg = insn_extract(*args, opcode->encoding); debug("%s : %08X ------\n", opcode->name, arg); if (letter_signed (*args)) { type |= OPTYPE_SIG; type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT; } /* Split argument to sequences of consecutive ones. */ while (arg) { int shr = 0; unsigned long tmp = arg, mask = 0; while ((tmp & 1) == 0) { shr++; tmp >>= 1; } while (tmp & 1) { mask++; tmp >>= 1; } cur->type = type | shr; cur->data = mask; arg &= ~(((1 << mask) - 1) << shr); debug("|%08X %08X\n", cur->type, cur->data); cur++; } args++; } else if (*args == '(') { /* Next param is displacement. Later we will treat them as one operand. */ cur--; cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP; debug(">%08X %08X\n", cur->type, cur->data); cur++; type = 0; i++; args++; } else if (*args == OPERAND_DELIM) { cur--; cur->type = type | cur->type | OPTYPE_OP; debug(">%08X %08X\n", cur->type, cur->data); cur++; type = 0; i++; args++; } else if (*args == '0') { cur->type = type; cur->data = 0; debug(">%08X %08X\n", cur->type, cur->data); cur++; type = 0; i++; args++; } else if (*args == ')') args++; else { fprintf (stderr, "%s : parse error in args.\n", opcode->name); exit (1); } } cur--; cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST; debug("#%08X %08X\n", cur->type, cur->data); cur++; return cur; } /* Constructs new automata based on or32_opcodes array. */ void build_automata() { int i, j; unsigned long *end; struct insn_op_struct *cur; automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long)); ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes); nuncovered = num_opcodes; printf("Building automata... "); /* Build temporary information about instructions. */ for (i = 0; i < num_opcodes; i++) { unsigned long ones, zeros; char *encoding = or32_opcodes[i].encoding; ones = insn_extract('1', encoding); zeros = insn_extract('0', encoding); ti[i].insn_mask = ones | zeros; ti[i].insn = ones; ti[i].in_pass = curpass = 0; /*debug("%s: %s %08X %08X\n", or32_opcodes[i].name, or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/ } /* Until all are covered search for best criteria to separate them. */ end = cover_insn (automata, curpass, 0xFFFFFFFF); if (end - automata > MAX_AUTOMATA_SIZE) { fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE."); exit (1); } printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes); printf("Parsing operands data... "); op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct)); op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *)); cur = op_data; for (i = 0; i < num_opcodes; i++) { op_start[i] = cur; cur = parse_params (&or32_opcodes[i], cur); if (cur - op_data > MAX_OP_TABLE_SIZE) { fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n"); exit (1); } } printf("done.\n"); } void destruct_automata () { free (ti); free (automata); free (op_data); free (op_start); } /* Decodes instruction and returns instruction index. */ int insn_decode (unsigned int insn) { unsigned long *a = automata; int i; while (!(*a & LEAF_FLAG)) { unsigned int first = *a; debug("%i ", a - automata); a++; i = (insn >> first) & *a; a++; if (!*(a + i)) { /* Invalid instruction found? */ debug("XXX\n", i); return -1; } a = automata + *(a + i); } i = *a & ~LEAF_FLAG; debug("%i\n", i); /* Final check - do we have direct match? (based on or32_opcodes this should be the only possibility, but in case of invalid/missing instruction we must perform a check) */ if ((ti[i].insn_mask & insn) == ti[i].insn) return i; else return -1; }
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