1053 lines
38 KiB
C
1053 lines
38 KiB
C
/* Table of opcodes for the OpenRISC 1000 ISA.
|
|
Copyright 2002 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>
|
|
#include "safe-ctype.h"
|
|
#include "ansidecl.h"
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
#include "opcode/or32.h"
|
|
|
|
static unsigned long insn_extract PARAMS ((char, char *));
|
|
static unsigned long * cover_insn PARAMS ((unsigned long *, int, unsigned int));
|
|
static int num_ones PARAMS ((unsigned long));
|
|
static struct insn_op_struct * parse_params PARAMS ((const struct or32_opcode *, struct insn_op_struct *));
|
|
static unsigned long or32_extract PARAMS ((char, char *, unsigned long));
|
|
static void or32_print_register PARAMS ((char, char *, unsigned long));
|
|
static void or32_print_immediate PARAMS ((char, char *, unsigned long));
|
|
static unsigned long extend_imm PARAMS ((unsigned long, char));
|
|
|
|
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", "K", "00 0x5 01--- ----- KKKK KKKK KKKK KKKK", 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.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.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.maci", "rB,I", "01 0x3 IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
|
|
{ "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.mfspr", "rD,rA,K", "10 0xD DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 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.mtspr", "rA,rB,K", "11 0x0 KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
|
|
{ "l.mac", "rA,rB", "11 0x1 ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
|
|
{ "l.msb", "rA,rB", "11 0x1 ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
|
|
|
|
{ "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.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 },
|
|
|
|
/* This section should not be defined in or1ksim, since it contains duplicates,
|
|
which would cause machine builder to complain. */
|
|
#ifdef HAS_CUST
|
|
{ "l.cust5_1", "rD", "11 0xC DDDDD ----- ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust5_2", "rD,rA" , "11 0xC DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust5_3", "rD,rA,rB", "11 0xC DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
|
|
|
|
{ "l.cust6_1", "rD", "11 0xD DDDDD ----- ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust6_2", "rD,rA" , "11 0xD DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust6_3", "rD,rA,rB", "11 0xD DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
|
|
|
|
{ "l.cust7_1", "rD", "11 0xE DDDDD ----- ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust7_2", "rD,rA" , "11 0xE DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust7_3", "rD,rA,rB", "11 0xE DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
|
|
|
|
{ "l.cust8_1", "rD", "11 0xF DDDDD ----- ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust8_2", "rD,rA" , "11 0xF DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
|
|
{ "l.cust8_3", "rD,rA,rB", "11 0xF DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
|
|
#endif
|
|
|
|
/* 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. */
|
|
{ "", "", "", EFI, 0 }
|
|
};
|
|
|
|
#undef EFI
|
|
#undef EFN
|
|
#undef EF
|
|
|
|
/* Define dummy, if debug is not defined. */
|
|
|
|
#if !defined HAS_DEBUG
|
|
static void debug PARAMS ((int, const char *, ...));
|
|
|
|
static void
|
|
debug (int level, const char *format, ...)
|
|
{
|
|
/* Just to get rid of warnings. */
|
|
format = (char *) level = 0;
|
|
}
|
|
#endif
|
|
|
|
const unsigned int or32_num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
|
|
|
|
/* Calculates instruction length in bytes. Always 4 for OR32. */
|
|
|
|
int
|
|
insn_len (insn_index)
|
|
int insn_index ATTRIBUTE_UNUSED;
|
|
{
|
|
return 4;
|
|
}
|
|
|
|
/* Is individual insn's operand signed or unsigned? */
|
|
|
|
int
|
|
letter_signed (l)
|
|
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 (l)
|
|
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)
|
|
{
|
|
unsigned int i;
|
|
int found = -1;
|
|
|
|
for (i = 0; i < or32_num_opcodes; i++)
|
|
if (!strcmp (or32_opcodes[i].name, insn))
|
|
{
|
|
found = i;
|
|
break;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
const char *
|
|
insn_name (index)
|
|
int index;
|
|
{
|
|
if (index >= 0 && index < (int) or32_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 (cur, pass, mask)
|
|
unsigned long * cur;
|
|
int pass;
|
|
unsigned int mask;
|
|
{
|
|
int best_first = 0, last_match = -1, ninstr = 0;
|
|
unsigned int best_len = 0;
|
|
unsigned int i;
|
|
unsigned long cur_mask = mask;
|
|
unsigned long *next;
|
|
|
|
for (i = 0; i < or32_num_opcodes; i++)
|
|
if (ti[i].in_pass == pass)
|
|
{
|
|
cur_mask &= ti[i].insn_mask;
|
|
ninstr++;
|
|
last_match = i;
|
|
}
|
|
|
|
debug (8, "%08X %08X\n", mask, cur_mask);
|
|
|
|
if (ninstr == 0)
|
|
return 0;
|
|
|
|
if (ninstr == 1)
|
|
{
|
|
/* Leaf holds instruction index. */
|
|
debug (8, "%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++)
|
|
{
|
|
unsigned int len;
|
|
|
|
for (len = best_len + 1; len < MIN (MAX_LEN, 33 - i); len++)
|
|
{
|
|
unsigned long m = (1UL << ((unsigned long)len)) - 1;
|
|
|
|
debug (9, " (%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 (9, "!");
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
|
|
debug (9, "\n");
|
|
|
|
if (!best_len)
|
|
{
|
|
fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
|
|
|
|
for (i = 0; i < or32_num_opcodes; i++)
|
|
if (ti[i].in_pass == pass)
|
|
fprintf (stderr, "%s ", or32_opcodes[i].name);
|
|
|
|
fprintf (stderr, "\n");
|
|
exit (1);
|
|
}
|
|
|
|
debug (8, "%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 < ((unsigned) 1 << best_len); i++)
|
|
{
|
|
unsigned int j;
|
|
unsigned long *c;
|
|
|
|
curpass++;
|
|
for (j = 0; j < or32_num_opcodes; j++)
|
|
if (ti[j].in_pass == pass
|
|
&& ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
|
|
&& ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
|
|
ti[j].in_pass = curpass;
|
|
|
|
debug (9, "%08X %08X %i\n", mask, cur_mask, best_first);
|
|
c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
|
|
if (c)
|
|
{
|
|
debug (8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
|
|
*next = cur - automata;
|
|
cur = c;
|
|
}
|
|
else
|
|
{
|
|
debug (8, "%i> N/A\n", next - automata);
|
|
*next = 0;
|
|
}
|
|
next++;
|
|
}
|
|
}
|
|
return cur;
|
|
}
|
|
|
|
/* Returns number of nonzero bits. */
|
|
|
|
static int
|
|
num_ones (value)
|
|
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 (opcode, cur)
|
|
const struct or32_opcode * opcode;
|
|
struct insn_op_struct * cur;
|
|
{
|
|
char *args = opcode->args;
|
|
int i, type;
|
|
|
|
i = 0;
|
|
type = 0;
|
|
/* In case we don't have any parameters, we add dummy read from r0. */
|
|
|
|
if (!(*args))
|
|
{
|
|
cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
|
|
cur->data = 0;
|
|
debug (9, "#%08X %08X\n", cur->type, cur->data);
|
|
cur++;
|
|
return cur;
|
|
}
|
|
|
|
while (*args != '\0')
|
|
{
|
|
if (*args == 'r')
|
|
{
|
|
args++;
|
|
type |= OPTYPE_REG;
|
|
}
|
|
else if (ISALPHA (*args))
|
|
{
|
|
unsigned long arg;
|
|
|
|
arg = insn_extract (*args, opcode->encoding);
|
|
debug (9, "%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 (6, "|%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 (9, ">%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 (9, ">%08X %08X\n", cur->type, cur->data);
|
|
cur++;
|
|
type = 0;
|
|
i++;
|
|
args++;
|
|
}
|
|
else if (*args == '0')
|
|
{
|
|
cur->type = type;
|
|
cur->data = 0;
|
|
debug (9, ">%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 (9, "#%08X %08X\n", cur->type, cur->data);
|
|
cur++;
|
|
|
|
return cur;
|
|
}
|
|
|
|
/* Constructs new automata based on or32_opcodes array. */
|
|
|
|
void
|
|
build_automata ()
|
|
{
|
|
unsigned int i;
|
|
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) * or32_num_opcodes);
|
|
|
|
nuncovered = or32_num_opcodes;
|
|
printf ("Building automata... ");
|
|
/* Build temporary information about instructions. */
|
|
for (i = 0; i < or32_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(9, "%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, or32_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 (or32_num_opcodes * sizeof (struct insn_op_struct *));
|
|
cur = op_data;
|
|
|
|
for (i = 0; i < or32_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 (insn)
|
|
unsigned int insn;
|
|
{
|
|
unsigned long *a = automata;
|
|
int i;
|
|
|
|
while (!(*a & LEAF_FLAG))
|
|
{
|
|
unsigned int first = *a;
|
|
|
|
debug (9, "%i ", a - automata);
|
|
|
|
a++;
|
|
i = (insn >> first) & *a;
|
|
a++;
|
|
if (!*(a + i))
|
|
{
|
|
/* Invalid instruction found? */
|
|
debug (9, "XXX\n", i);
|
|
return -1;
|
|
}
|
|
a = automata + *(a + i);
|
|
}
|
|
|
|
i = *a & ~LEAF_FLAG;
|
|
|
|
debug (9, "%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;
|
|
}
|
|
|
|
static char disassembled_str[50];
|
|
char *disassembled = &disassembled_str[0];
|
|
|
|
/* Automagically does zero- or sign- extension and also finds correct
|
|
sign bit position if sign extension is correct extension. Which extension
|
|
is proper is figured out from letter description. */
|
|
|
|
static unsigned long
|
|
extend_imm (imm, l)
|
|
unsigned long imm;
|
|
char l;
|
|
{
|
|
unsigned long mask;
|
|
int letter_bits;
|
|
|
|
/* First truncate all bits above valid range for this letter
|
|
in case it is zero extend. */
|
|
letter_bits = letter_range (l);
|
|
mask = (1 << letter_bits) - 1;
|
|
imm &= mask;
|
|
|
|
/* Do sign extend if this is the right one. */
|
|
if (letter_signed(l) && (imm >> (letter_bits - 1)))
|
|
imm |= (~mask);
|
|
|
|
return imm;
|
|
}
|
|
|
|
static unsigned long
|
|
or32_extract (param_ch, enc_initial, insn)
|
|
char param_ch;
|
|
char *enc_initial;
|
|
unsigned long insn;
|
|
{
|
|
char *enc;
|
|
unsigned long ret = 0;
|
|
int opc_pos = 0;
|
|
int param_pos = 0;
|
|
|
|
for (enc = enc_initial; *enc != '\0'; enc++)
|
|
if (*enc == param_ch)
|
|
{
|
|
if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
|
|
continue;
|
|
else
|
|
param_pos++;
|
|
}
|
|
|
|
#if DEBUG
|
|
printf ("or32_extract: %x ", param_pos);
|
|
#endif
|
|
opc_pos = 32;
|
|
|
|
for (enc = enc_initial; *enc != '\0'; )
|
|
if ((*enc == '0') && (*(enc + 1) == 'x'))
|
|
{
|
|
opc_pos -= 4;
|
|
if ((param_ch == '0') || (param_ch == '1'))
|
|
{
|
|
unsigned long tmp = strtol (enc, NULL, 16);
|
|
#if DEBUG
|
|
printf (" enc=%s, tmp=%x ", enc, tmp);
|
|
#endif
|
|
if (param_ch == '0')
|
|
tmp = 15 - tmp;
|
|
ret |= tmp << opc_pos;
|
|
}
|
|
enc += 3;
|
|
}
|
|
else if ((*enc == '0') || (*enc == '1'))
|
|
{
|
|
opc_pos--;
|
|
if (param_ch == *enc)
|
|
ret |= 1 << opc_pos;
|
|
enc++;
|
|
}
|
|
else if (*enc == param_ch)
|
|
{
|
|
opc_pos--;
|
|
param_pos--;
|
|
#if DEBUG
|
|
printf ("\n ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
|
|
#endif
|
|
if (ISLOWER (param_ch))
|
|
ret -= ((insn >> opc_pos) & 0x1) << param_pos;
|
|
else
|
|
ret += ((insn >> opc_pos) & 0x1) << param_pos;
|
|
enc++;
|
|
}
|
|
else if (ISALPHA (*enc))
|
|
{
|
|
opc_pos--;
|
|
enc++;
|
|
}
|
|
else if (*enc == '-')
|
|
{
|
|
opc_pos--;
|
|
enc++;
|
|
}
|
|
else
|
|
enc++;
|
|
|
|
#if DEBUG
|
|
printf ("ret=%x\n", ret);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
/* Print register. Used only by print_insn. */
|
|
|
|
static void
|
|
or32_print_register (param_ch, encoding, insn)
|
|
char param_ch;
|
|
char *encoding;
|
|
unsigned long insn;
|
|
{
|
|
int regnum = or32_extract(param_ch, encoding, insn);
|
|
|
|
sprintf (disassembled, "%sr%d", disassembled, regnum);
|
|
}
|
|
|
|
/* Print immediate. Used only by print_insn. */
|
|
|
|
static void
|
|
or32_print_immediate (param_ch, encoding, insn)
|
|
char param_ch;
|
|
char *encoding;
|
|
unsigned long insn;
|
|
{
|
|
int imm = or32_extract (param_ch, encoding, insn);
|
|
|
|
imm = extend_imm (imm, param_ch);
|
|
|
|
if (letter_signed (param_ch))
|
|
{
|
|
if (imm < 0)
|
|
sprintf (disassembled, "%s%d", disassembled, imm);
|
|
else
|
|
sprintf (disassembled, "%s0x%x", disassembled, imm);
|
|
}
|
|
else
|
|
sprintf (disassembled, "%s%#x", disassembled, imm);
|
|
}
|
|
|
|
/* Disassemble one instruction from insn to disassemble.
|
|
Return the size of the instruction. */
|
|
|
|
int
|
|
disassemble_insn (insn)
|
|
unsigned long insn;
|
|
{
|
|
int index;
|
|
index = insn_decode (insn);
|
|
|
|
if (index >= 0)
|
|
{
|
|
struct or32_opcode const *opcode = &or32_opcodes[index];
|
|
char *s;
|
|
|
|
sprintf (disassembled, "%s ", opcode->name);
|
|
for (s = opcode->args; *s != '\0'; ++s)
|
|
{
|
|
switch (*s)
|
|
{
|
|
case '\0':
|
|
return 4;
|
|
|
|
case 'r':
|
|
or32_print_register (*++s, opcode->encoding, insn);
|
|
break;
|
|
|
|
default:
|
|
if (strchr (opcode->encoding, *s))
|
|
or32_print_immediate (*s, opcode->encoding, insn);
|
|
else
|
|
sprintf (disassembled, "%s%c", disassembled, *s);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* This used to be %8x for binutils. */
|
|
sprintf (disassembled, "%s.word 0x%08lx", disassembled, insn);
|
|
}
|
|
|
|
return insn_len (insn);
|
|
}
|