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Add FRSTOR operator for x86 assembler (Restore x87 FPU State)

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emvivre 2018-01-03 21:20:19 +01:00 committed by radare
parent e854df5c0f
commit ccc2b8aadb
1 changed files with 18 additions and 0 deletions
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18
libr/asm/p/asm_x86_nz.c
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@ -2246,6 +2246,23 @@ static int opffree(RAsm *a, ut8 *data, const Opcode *op) {
return l;
}
static int opfrstor(RAsm *a, ut8 *data, const Opcode *op) {
int l = 0;
switch (op->operands_count) {
case 1:
if (op->operands[0].type & OT_MEMORY) {
data[l++] = 0xdd;
data[l++] = 0x20 | op->operands[0].regs[0];
} else {
return -1;
}
break;
default:
return -1;
}
return l;
}
static int opfucom(RAsm *a, ut8 *data, const Opcode *op) {
int l = 0;
switch (op->operands_count) {
@ -2387,6 +2404,7 @@ LookupTable oplookup[] = {
{"fprem1", 0, NULL, 0xd9f5, 2},
{"fptan", 0, NULL, 0xd9f2, 2},
{"frndint", 0, NULL, 0xd9fc, 2},
{"frstor", 0, &opfrstor, 0},
{"fscale", 0, NULL, 0xd9fd, 2},
{"fsin", 0, NULL, 0xd9fe, 2},
{"fsincos", 0, NULL, 0xd9fb, 2},