diff options
Diffstat (limited to 'lib/Target/X86/Disassembler/X86DisassemblerDecoder.c')
| -rw-r--r-- | lib/Target/X86/Disassembler/X86DisassemblerDecoder.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c index 1a24807339..c915df0049 100644 --- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c +++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c @@ -1472,6 +1472,7 @@ static int readVVVV(struct InternalInstruction* insn) { static int readOperands(struct InternalInstruction* insn) { int index; int hasVVVV, needVVVV; + int sawRegImm = 0; dbgprintf(insn, "readOperands()"); @@ -1500,11 +1501,20 @@ static int readOperands(struct InternalInstruction* insn) { dbgprintf(insn, "We currently don't hande code-offset encodings"); return -1; case ENCODING_IB: + if (sawRegImm) { + // saw a register immediate so don't read again and instead split the previous immediate + // FIXME: This is a hack + insn->immediates[insn->numImmediatesConsumed++] = insn->immediates[insn->numImmediatesConsumed - 1] & 0xf; + break; + } if (readImmediate(insn, 1)) return -1; if (insn->spec->operands[index].type == TYPE_IMM3 && insn->immediates[insn->numImmediatesConsumed - 1] > 7) return -1; + if (insn->spec->operands[index].type == TYPE_XMM128 || + insn->spec->operands[index].type == TYPE_XMM256) + sawRegImm = 1; break; case ENCODING_IW: if (readImmediate(insn, 2)) |