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Begin enforcing memory operand requirements

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This commit is contained in:
Alexis Engelke
2019-11-02 19:21:29 +01:00
parent 32d65fbf19
commit bd6c7ceebe
4 changed files with 18 additions and 13 deletions
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4
decode.c
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@@ -593,9 +593,11 @@ fd_decode(const uint8_t* buffer, size_t len_sz, int mode_int, uintptr_t address,
for (int i = 0; i < 4; i++)
{
uint32_t reg_type = (desc->reg_types >> 4 * i) & 0xf;
if (reg_type == FD_RT_MEM && instr->operands[i].type != FD_OT_MEM)
return -1;
if (instr->operands[i].type != FD_OT_REG)
continue;
uint32_t reg_type = (desc->reg_types >> 4 * i) & 0xf;
if (reg_type == FD_RT_GPL && !(prefixes & PREFIX_REX) &&
instr->operands[i].size == 1 && instr->operands[i].reg >= 4)
reg_type = FD_RT_GPH;