int x86_format_mnemonic(x86_insn_t *insn, char *buf, int len,
enum x86_asm_format format){
char str[MAX_OP_STRING];
memset( buf, 0, len );
STRNCAT( buf, insn->prefix_string, len );
if ( format == att_syntax ) {
format_att_mnemonic( insn, str, sizeof str );
STRNCAT( buf, str, len );
} else {
STRNCAT( buf, insn->mnemonic, len );
}
return( strlen( buf ) );
}
int x86_format_insn( x86_insn_t *insn, char *buf, int len,
enum x86_asm_format format ){
char str[MAX_OP_STRING];
x86_op_t *src, *dst;
int i;
memset(buf, 0, len);
if ( format == intel_syntax ) {
/* INTEL STYLE: mnemonic dest, src, imm */
STRNCAT( buf, insn->prefix_string, len );
STRNCAT( buf, insn->mnemonic, len );
STRNCAT( buf, "\t", len );
/* dest */
if ( (dst = x86_operand_1st( insn )) && !(dst->flags & op_implied) ) {
x86_format_operand( dst, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
/* src */
if ( (src = x86_operand_2nd( insn )) ) {
if ( !(dst->flags & op_implied) ) {
STRNCAT( buf, ", ", len );
}
x86_format_operand( src, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
/* imm */
if ( x86_operand_3rd( insn )) {
STRNCAT( buf, ", ", len );
x86_format_operand( x86_operand_3rd( insn ),
str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
} else if ( format == att_syntax ) {
/* ATT STYLE: mnemonic src, dest, imm */
STRNCAT( buf, insn->prefix_string, len );
format_att_mnemonic(insn, str, MAX_OP_STRING);
STRNCATF( buf, "%s\t", str, len);
/* not sure which is correct? sometimes GNU as requires
* an imm as the first operand, sometimes as the third... */
/* imm */
if ( x86_operand_3rd( insn ) ) {
x86_format_operand(x86_operand_3rd( insn ),
str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
/* there is always 'dest' operand if there is 'src' */
STRNCAT( buf, ", ", len );
}
if ( (insn->note & insn_note_nonswap ) == 0 ) {
/* regular AT&T style swap */
src = x86_operand_2nd( insn );
dst = x86_operand_1st( insn );
}
else {
/* special-case instructions */
src = x86_operand_1st( insn );
dst = x86_operand_2nd( insn );
}
/* src */
if ( src ) {
x86_format_operand(src, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
/* there is always 'dest' operand if there is 'src' */
if ( dst && !(dst->flags & op_implied) ) {
STRNCAT( buf, ", ", len );
}
}
/* dest */
if ( dst && !(dst->flags & op_implied) ) {
x86_format_operand( dst, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
} else if ( format == raw_syntax ) {
format_raw_insn( insn, buf, len );
} else if ( format == xml_syntax ) {
format_xml_insn( insn, buf, len );
} else { /* default to native */
/* NATIVE style: RVA\tBYTES\tMNEMONIC\tOPERANDS */
/* print address */
STRNCATF( buf, "%08X\t", insn->addr, len );
/* print bytes */
for ( i = 0; i < insn->size; i++ ) {
STRNCATF( buf, "%02X ", insn->bytes[i], len );
}
STRNCAT( buf, "\t", len );
/* print mnemonic */
STRNCAT( buf, insn->prefix_string, len );
STRNCAT( buf, insn->mnemonic, len );
STRNCAT( buf, "\t", len );
/* print operands */
/* dest */
if ( x86_operand_1st( insn ) ) {
x86_format_operand( x86_operand_1st( insn ),
str, MAX_OP_STRING, format);
STRNCATF( buf, "%s\t", str, len );
}
/* src */
if ( x86_operand_2nd( insn ) ) {
x86_format_operand(x86_operand_2nd( insn ),
str, MAX_OP_STRING, format);
STRNCATF( buf, "%s\t", str, len );
}
/* imm */
if ( x86_operand_3rd( insn )) {
x86_format_operand( x86_operand_3rd( insn ),
str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
}
return( strlen( buf ) );
}
int x86_format_insn( x86_insn_t *insn, char *buf, int len,
enum x86_asm_format format ) {
char str[MAX_OP_STRING];
int i;
memset(buf, 0, len);
if ( format == intel_syntax ) {
/* INTEL STYLE: mnemonic dest, src, imm */
STRNCAT( buf, insn->prefix_string, len );
STRNCAT( buf, insn->mnemonic, len );
STRNCAT( buf, "\t", len );
/* dest */
if ( x86_operand_1st( insn ) ) {
x86_format_operand( x86_operand_1st( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
/* src */
if ( x86_operand_2nd( insn ) ) {
STRNCAT( buf, ", ", len );
x86_format_operand(x86_operand_2nd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
/* imm */
if ( x86_operand_3rd( insn )) {
STRNCAT( buf, ", ", len );
x86_format_operand( x86_operand_3rd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
} else if ( format == att_syntax ) {
/* ATT STYLE: mnemonic src, dest, imm */
STRNCAT( buf, insn->prefix_string, len );
format_att_mnemonic(insn, str, MAX_OP_STRING);
STRNCATF( buf, "%s\t", str, len);
/* src */
if ( x86_operand_2nd( insn ) ) {
x86_format_operand(x86_operand_2nd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
/* there is always 'dest' operand if there is 'src' */
STRNCAT( buf, ", ", len );
}
/* dest */
if ( x86_operand_1st( insn ) ) {
x86_format_operand( x86_operand_1st( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
/* imm */
if ( x86_operand_3rd( insn ) ) {
STRNCAT( buf, ", ", len );
x86_format_operand(x86_operand_3rd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
} else if ( format == raw_syntax ) {
format_raw_insn( insn, buf, len );
} else if ( format == xml_syntax ) {
format_xml_insn( insn, buf, len );
} else { /* default to native */
/* NATIVE style: RVA\tBYTES\tMNEMONIC\tOPERANDS */
/* print address */
STRNCATF( buf, "%08lX\t", insn->addr, len );
/* print bytes */
for ( i = 0; i < insn->size; i++ ) {
STRNCATF( buf, "%02X ", insn->bytes[i], len );
}
STRNCAT( buf, "\t", len );
/* print mnemonic */
STRNCAT( buf, insn->prefix_string, len );
STRNCAT( buf, insn->mnemonic, len );
STRNCAT( buf, "\t", len );
/* print operands */
/* dest */
if ( x86_operand_1st( insn ) ) {
x86_format_operand( x86_operand_1st( insn ),
insn, str, MAX_OP_STRING, format);
STRNCATF( buf, "%s\t", str, len );
}
/* src */
if ( x86_operand_2nd( insn ) ) {
x86_format_operand(x86_operand_2nd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCATF( buf, "%s\t", str, len );
}
/* imm */
if ( x86_operand_3rd( insn )) {
x86_format_operand( x86_operand_3rd( insn ),
insn, str, MAX_OP_STRING, format);
STRNCAT( buf, str, len );
}
}
return( strlen( buf ) );
}