| Line 22... |
Line 22... |
we need to assign some characteristics to them like signess etc.*/
|
we need to assign some characteristics to them like signess etc.*/
|
#include <string.h>
|
#include <string.h>
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
|
|
|
#ifdef HAVE_CONFIG_H
|
#include "config.h"
|
#include "config.h"
|
|
#endif
|
|
#include "parse.h"
|
#include "opcode/or32.h"
|
#include "opcode/or32.h"
|
|
|
/* **INDENT-OFF** */
|
/* **INDENT-OFF** */
|
|
|
CONST struct or32_letter or32_letters[] =
|
CONST struct or32_letter or32_letters[] =
|
| Line 69... |
Line 72... |
CONST struct or32_opcode or32_opcodes[] =
|
CONST struct or32_opcode or32_opcodes[] =
|
{
|
{
|
|
|
{ "l.j", "N", "00 0x0 NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
|
{ "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.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 },
|
{ "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 },
|
{ "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.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.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.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.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.sys", "K", "00 0x8 00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
|
| Line 239... |
Line 242... |
{ "l.slli", "rD,rA,L", "10 0xE DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 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.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.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.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), 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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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.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.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.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.sh", "I(rA),rB", "11 0x7 IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
|
| Line 271... |
Line 274... |
{ "l.sra", "rD,rA,rB", "11 0x8 DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 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.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.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.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.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 ---- 0xC", 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 ---- 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 ---- 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 ---- 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 ---- 0xD", 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 ---- 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.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.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), 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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "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), 0 },
|
{ "l.sfles", "rA,rB", "11 0x9 01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
|
|
|
{ "l.cust5", "", "11 0xC ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust5", "", "11 0xC ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust6", "", "11 0xD ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust6", "", "11 0xD ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust7", "", "11 0xE ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust7", "", "11 0xE ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust8", "", "11 0xF ----- ----- ---- ---- ---- ----", EFI, 0 },
|
{ "l.cust8", "", "11 0xF ----- ----- ---- ---- ---- ----", EFI, 0 },
|
| Line 309... |
Line 312... |
|
|
/* **INDENT-ON** */
|
/* **INDENT-ON** */
|
|
|
CONST unsigned int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
|
CONST unsigned int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
|
|
|
/* Calculates instruction length in bytes. Either 2 or 4 for OR16
|
/* Calculates instruction length in bytes. Always 4 for OR32. */
|
and always 4 for OR32. */
|
int
|
int insn_len(int insn_index)
|
insn_len(int insn_index)
|
{
|
{
|
#ifdef OR16
|
|
char *enc;
|
|
int len = 0;
|
|
|
|
if (index < 0) {
|
|
printf("insn_len(): Unknown instruction.\n");
|
|
exit(1);
|
|
} else {
|
|
CONST struct or32_opcode *pinsn = or32_opcodes[ins_index];
|
|
for (enc = pinsn->encoding; *enc != '\0'; enc++)
|
|
if ((*enc == '0') && (*(enc+1) == 'x')) {
|
|
len += 4;
|
|
enc += 2;
|
|
}
|
|
else if (!isspace(*enc))
|
|
len++;
|
|
return len / 8;
|
|
}
|
|
#else
|
|
insn_index = 0; /* Just to get rid that warning. */
|
insn_index = 0; /* Just to get rid that warning. */
|
return 4;
|
return 4;
|
#endif
|
|
}
|
}
|
|
|
/* Is individual insn's operand signed or unsigned? */
|
/* Is individual insn's operand signed or unsigned? */
|
int letter_signed(char l)
|
int
|
|
letter_signed(char l)
|
{
|
{
|
CONST struct or32_letter *pletter;
|
CONST struct or32_letter *pletter;
|
|
|
for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
|
for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
|
if (pletter->letter == l)
|
if (pletter->letter == l)
|
| Line 351... |
Line 335... |
printf("letter_signed(%c): Unknown letter.\n", l);
|
printf("letter_signed(%c): Unknown letter.\n", l);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Number of letters in the individual lettered operand. */
|
/* Number of letters in the individual lettered operand. */
|
int letter_range(char l)
|
int
|
|
letter_range(char l)
|
{
|
{
|
CONST struct or32_opcode *pinsn;
|
CONST struct or32_opcode *pinsn;
|
char *enc;
|
char *enc;
|
int range = 0;
|
int range = 0;
|
|
|
for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++) {
|
for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
|
if (strchr(pinsn->encoding,l)) {
|
{
|
|
if (strchr(pinsn->encoding,l))
|
|
{
|
for (enc = pinsn->encoding; *enc != '\0'; enc++)
|
for (enc = pinsn->encoding; *enc != '\0'; enc++)
|
if ((*enc == '0') && (*(enc+1) == 'x')) {
|
if ((*enc == '0') && (*(enc+1) == 'x'))
|
enc += 2;
|
enc += 2;
|
}
|
|
else if (*enc == l)
|
else if (*enc == l)
|
range++;
|
range++;
|
return range;
|
return range;
|
}
|
}
|
}
|
}
|
printf("\nABORT: letter_range(%c): Never used letter.\n", l);
|
printf("\nABORT: letter_range(%c): Never used letter.\n", l);
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
/* MM: Returns index of given instruction name. */
|
/* MM: Returns index of given instruction name. */
|
int insn_index (char *insn) {
|
int
|
|
insn_index (char *insn)
|
|
{
|
int i, found = -1;
|
int i, found = -1;
|
for (i = 0; (unsigned int)i < num_opcodes; i++)
|
for (i = 0; (unsigned int)i < num_opcodes; i++)
|
if (!strcmp (or32_opcodes[i].name, insn)) {
|
if (!strcmp (or32_opcodes[i].name, insn))
|
|
{
|
found = i;
|
found = i;
|
break;
|
break;
|
}
|
}
|
return found;
|
return found;
|
}
|
}
|
|
|
CONST char *insn_name(int index) {
|
CONST char *insn_name(int index)
|
|
{
|
if (index >= 0 && (unsigned int)index < num_opcodes)
|
if (index >= 0 && (unsigned int)index < num_opcodes)
|
return or32_opcodes[index].name;
|
return or32_opcodes[index].name;
|
else
|
else
|
return "???";
|
return "???";
|
}
|
}
|
|
|
void l_none() {
|
void l_none()
|
|
{
|
}
|
}
|
|
|
|
|
/*** Finite automata for instruction decoding building code ***/
|
/*** Finite automata for instruction decoding building code ***/
|
|
|
| Line 410... |
Line 401... |
for (enc = enc_initial; *enc != '\0'; )
|
for (enc = enc_initial; *enc != '\0'; )
|
if ((*enc == '0') && (*(enc+1) == 'x'))
|
if ((*enc == '0') && (*(enc+1) == 'x'))
|
{
|
{
|
unsigned long tmp = strtol(enc+2, NULL, 16);
|
unsigned long tmp = strtol(enc+2, NULL, 16);
|
opc_pos -= 4;
|
opc_pos -= 4;
|
|
if (param_ch == '0' || param_ch == '1')
|
|
{
|
if (param_ch == '0')
|
if (param_ch == '0')
|
tmp = 15 - tmp;
|
tmp = 15 - tmp;
|
ret |= tmp << opc_pos;
|
ret |= tmp << opc_pos;
|
|
}
|
enc += 3;
|
enc += 3;
|
}
|
}
|
else {
|
else
|
if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) ) {
|
{
|
|
if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
|
|
{
|
opc_pos--;
|
opc_pos--;
|
if (param_ch == *enc)
|
if (param_ch == *enc)
|
ret |= 1 << opc_pos;
|
ret |= 1 << opc_pos;
|
}
|
}
|
enc++;
|
enc++;
|
}
|
}
|
return ret;
|
return ret;
|
}
|
}
|
|
|
struct temp_insn_struct {
|
#define MAX_AUTOMATA_SIZE (1200)
|
unsigned long insn;
|
#define MAX_OP_TABLE_SIZE (1200)
|
unsigned long insn_mask;
|
|
int in_pass;
|
|
};
|
|
|
|
#define MAX_AUTOMATA_SIZE (1000)
|
|
#define LEAF_FLAG (0x80000000)
|
#define LEAF_FLAG (0x80000000)
|
#define MAX_LEN (8)
|
#define MAX_LEN (8)
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#ifndef MIN
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#ifndef MIN
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# define MIN(x,y) ((x) < (y) ? (x) : (y))
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# define MIN(x,y) ((x) < (y) ? (x) : (y))
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| Line 444... |
Line 435... |
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unsigned long *automata;
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unsigned long *automata;
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int nuncovered;
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int nuncovered;
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int curpass = 0;
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int curpass = 0;
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unsigned long *cover_insn (struct temp_insn_struct *ti, unsigned long *cur, int pass, unsigned int mask) {
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/* MM: Struct that hold runtime build information about instructions. */
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struct temp_insn_struct
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{
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unsigned long insn;
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unsigned long insn_mask;
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int in_pass;
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} *ti;
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struct insn_op_struct *op_data, **op_start;
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/* Recursive utility function used to find best match and to build automata. */
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static unsigned long *
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cover_insn (unsigned long *cur, int pass, unsigned int mask)
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{
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int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
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int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
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unsigned long cur_mask = mask;
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unsigned long cur_mask = mask;
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unsigned long *next;
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unsigned long *next;
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for (i = 0; i < num_opcodes; i++)
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for (i = 0; i < num_opcodes; i++)
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if (ti[i].in_pass == pass) {
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if (ti[i].in_pass == pass)
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{
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cur_mask &= ti[i].insn_mask;
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cur_mask &= ti[i].insn_mask;
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ninstr++;
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ninstr++;
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last_match = i;
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last_match = i;
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}
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}
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printf ("%08X\n", cur_mask);
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debug("%08X %08X\n", mask, cur_mask);
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if (ninstr == 1) {
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if (ninstr == 0)
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return 0;
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if (ninstr == 1)
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{
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/* Leaf holds instruction index. */
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/* Leaf holds instruction index. */
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printf ("%i>I%i\n", cur - automata, last_match);
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debug("%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
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*cur = LEAF_FLAG | last_match;
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*cur = LEAF_FLAG | last_match;
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cur++;
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cur++;
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nuncovered--;
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nuncovered--;
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} else {
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} else {
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/* Find longest match. */
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/* Find longest match. */
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for (i = 0; i < 32; i++) {
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for (i = 0; i < 32; i++)
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{
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int len;
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int len;
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for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++) {
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for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
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{
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unsigned long m = (1UL << ((unsigned long)len)) - 1;
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unsigned long m = (1UL << ((unsigned long)len)) - 1;
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/*debug(" (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);*/
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/*debug(" (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);*/
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if ((m & (cur_mask >> (unsigned)i)) == m) {
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if ((m & (cur_mask >> (unsigned)i)) == m)
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{
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best_len = len;
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best_len = len;
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best_first = i;
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best_first = i;
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/*debug("!");*/
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/*debug("!");*/
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} else break;
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}
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else
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break;
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}
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}
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}
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}
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/*debug("\n");*/
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/*debug("\n");*/
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if (!best_len) {
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if (!best_len)
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fprintf (stderr, "%i instructions match mask 0x%08X\n", ninstr, mask);
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{
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fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
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for (i = 0; i < num_opcodes; i++)
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if (ti[i].in_pass == pass)
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fprintf (stderr, "%s ", or32_opcodes[i].name);
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fprintf (stderr, "\n");
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exit (1);
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exit (1);
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}
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}
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printf ("%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
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debug("%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
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*cur = best_first;
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*cur = best_first;
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cur++;
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cur++;
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*cur = (1 << best_len) - 1;
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*cur = (1 << best_len) - 1;
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cur++;
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cur++;
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next = cur;
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next = cur;
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/* Allocate space for pointers. */
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/* Allocate space for pointers. */
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cur += (1 << best_len) - 1;
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cur += 1 << best_len;
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cur_mask = 1 << ((unsigned long)best_len) - 1;
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cur_mask = (1 << (unsigned long)best_len) - 1;
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for (i = 0; i < (1 << best_len) - 1; i++) {
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for (i = 0; i < (1 << (unsigned long)best_len); i++)
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{
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int j;
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int j;
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unsigned long *c;
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curpass++;
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curpass++;
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for (j = 0; j < num_opcodes; j++)
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for (j = 0; j < num_opcodes; j++)
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if (ti[j].in_pass == pass
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if (ti[j].in_pass == pass
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&& ((ti[j].insn >> best_first) & cur_mask) == i
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&& ((ti[j].insn >> best_first) & cur_mask) == i
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&& ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask) {
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&& ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
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ti[j].in_pass = curpass;
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ti[j].in_pass = curpass;
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}
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printf ("%i> #%X -> %u\n", next - automata, i, cur - automata);
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/*debug("%08X %08X %i\n", mask, cur_mask, best_first);*/
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c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
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if (c)
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{
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debug("%i> #%X -> %u\n", next - automata, i, cur - automata);
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*next = cur - automata;
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*next = cur - automata;
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cur = c;
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}
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else
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{
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debug("%i> N/A\n", next - automata);
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*next = 0;
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}
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next++;
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next++;
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cur = cover_insn (ti, cur, curpass, mask & ~cur_mask);
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}
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}
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}
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}
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return cur;
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return cur;
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}
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}
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void build_automata() {
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/* Returns number of nonzero bits. */
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static int
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num_ones (unsigned long value)
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{
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int c = 0;
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while (value)
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{
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if (value & 1)
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c++;
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value >>= 1;
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}
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return c;
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}
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/* Utility function, which converts parameters from or32_opcode format to more binary form.
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Parameters are stored in ti struct. */
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static struct insn_op_struct *
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parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
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{
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char *args = opcode->args;
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int i, type;
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i = 0;
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type = 0;
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while (*args != '\0')
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{
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if (*args == 'r')
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{
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args++;
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type |= OPTYPE_REG;
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}
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else if (isalpha (*args))
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{
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unsigned long arg;
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arg = insn_extract(*args, opcode->encoding);
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debug("%s : %08X ------\n", opcode->name, arg);
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if (letter_signed (*args))
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{
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type |= OPTYPE_SIG;
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type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
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}
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/* Split argument to sequences of consecutive ones. */
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while (arg)
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{
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int shr = 0;
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unsigned long tmp = arg, mask = 0;
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while ((tmp & 1) == 0)
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{
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shr++;
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tmp >>= 1;
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}
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while (tmp & 1)
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{
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mask++;
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tmp >>= 1;
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}
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cur->type = type | shr;
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cur->data = mask;
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arg &= ~(((1 << mask) - 1) << shr);
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debug("|%08X %08X\n", cur->type, cur->data);
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cur++;
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}
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args++;
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}
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else if (*args == '(')
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{
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/* Next param is displacement. Later we will treat them as one operand. */
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cur--;
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cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
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debug(">%08X %08X\n", cur->type, cur->data);
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cur++;
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type = 0;
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i++;
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args++;
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}
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else if (*args == OPERAND_DELIM)
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{
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cur--;
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cur->type = type | cur->type | OPTYPE_OP;
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debug(">%08X %08X\n", cur->type, cur->data);
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cur++;
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type = 0;
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i++;
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args++;
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}
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else if (*args == '0')
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{
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cur->type = type;
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cur->data = 0;
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debug(">%08X %08X\n", cur->type, cur->data);
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cur++;
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type = 0;
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i++;
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args++;
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}
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else if (*args == ')')
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args++;
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else
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{
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fprintf (stderr, "%s : parse error in args.\n", opcode->name);
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exit (1);
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}
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}
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cur--;
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cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
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debug("#%08X %08X\n", cur->type, cur->data);
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cur++;
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return cur;
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}
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/* Constructs new automata based on or32_opcodes array. */
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void
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build_automata()
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{
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int i, j;
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int i, j;
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struct temp_insn_struct *ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
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unsigned long *end;
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unsigned long *end;
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struct insn_op_struct *cur;
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automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
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automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
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ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
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nuncovered = num_opcodes;
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nuncovered = num_opcodes;
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printf ("Building automata.\n");
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printf("Building automata... ");
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/* Build temporary information about instructions. */
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/* Build temporary information about instructions. */
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for (i = 0; i < num_opcodes; i++) {
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for (i = 0; i < num_opcodes; i++)
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{
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unsigned long ones, zeros;
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unsigned long ones, zeros;
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char *encoding = or32_opcodes[i].encoding;
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char *encoding = or32_opcodes[i].encoding;
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ones = insn_extract('1', encoding);
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ones = insn_extract('1', encoding);
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zeros = insn_extract('0', encoding);
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zeros = insn_extract('0', encoding);
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ti[i].insn_mask = ones | zeros;
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ti[i].insn_mask = ones | zeros;
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ti[i].insn = ones;
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ti[i].insn = ones;
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ti[i].in_pass = curpass = 0;
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ti[i].in_pass = curpass = 0;
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/*printf ("%s: %s %08X %08X\n", or32_opcodes[i].name, or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
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/*debug("%s: %s %08X %08X\n", or32_opcodes[i].name,
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or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
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}
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}
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/* Until all are covered search for best criteria to separate them. */
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/* Until all are covered search for best criteria to separate them. */
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end = cover_insn (ti, automata, curpass, 0xFFFFFFFF);
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end = cover_insn (automata, curpass, 0xFFFFFFFF);
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if (end - automata > MAX_AUTOMATA_SIZE) {
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if (end - automata > MAX_AUTOMATA_SIZE)
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{
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fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
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fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
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exit (1);
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exit (1);
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}
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}
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printf ("Num uncovered: %i/%i\n", nuncovered, num_opcodes);
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printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
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free (ti);
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printf("Parsing operands data... ");
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op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
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op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
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cur = op_data;
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for (i = 0; i < num_opcodes; i++)
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{
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op_start[i] = cur;
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cur = parse_params (&or32_opcodes[i], cur);
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if (cur - op_data > MAX_OP_TABLE_SIZE)
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{
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fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
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exit (1);
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}
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}
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printf("done.\n");
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}
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}
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void destruct_automata () {
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void destruct_automata ()
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{
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free (ti);
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free (automata);
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free (automata);
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free (op_data);
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free (op_start);
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}
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}
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/* Decodes instruction and returns instruction index. */
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/* Decodes instruction and returns instruction index. */
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int decode_insn (unsigned int insn) {
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int insn_decode (unsigned int insn)
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{
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unsigned long *a = automata;
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unsigned long *a = automata;
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while (!(*a & LEAF_FLAG)) {
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int i;
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unsigned int first = *a, mask;
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while (!(*a & LEAF_FLAG))
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{
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unsigned int first = *a;
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debug("%i ", a - automata);
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a++;
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a++;
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mask = (1 << *a) - 1;
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i = (insn >> first) & *a;
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a++;
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a++;
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a += (insn >> first) & mask;
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if (!*(a + i))
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a = automata + *a;
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{ /* Invalid instruction found? */
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}
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debug("XXX\n", i);
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return *a & ~LEAF_FLAG;
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return -1;
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}
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a = automata + *(a + i);
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}
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i = *a & ~LEAF_FLAG;
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debug("%i\n", i);
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/* Final check - do we have direct match?
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(based on or32_opcodes this should be the only possibility,
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but in case of invalid/missing instruction we must perform a check) */
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if ((ti[i].insn_mask & insn) == ti[i].insn)
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return i;
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else
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return -1;
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}
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}
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/* Parses and returns operand. */
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/*unsigned int eval_operand (int insn_index, int operand) {
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return 0;
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}*/
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No newline at end of file
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No newline at end of file
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