Function DecodeHINTInstruction

arch/ARM/ARMDisassembler.c:2133–2151

Check for UNPREDICTABLE predicated ESB instruction

// Check for UNPREDICTABLE predicated ESB instruction
static DecodeStatus DecodeHINTInstruction(MCInst *Inst, unsigned Insn,
                                 uint64_t Address, const void *Decoder)
{
	unsigned pred = fieldFromInstruction_4(Insn, 28, 4);
	unsigned imm8 = fieldFromInstruction_4(Insn, 0, 8);
	DecodeStatus result = MCDisassembler_Success;

	MCOperand_CreateImm0(Inst, imm8);

	if (!Check(&result, DecodePredicateOperand(Inst, pred, Address, Decoder)))
		return MCDisassembler_Fail;

	// ESB is unpredictable if pred != AL. Without the RAS extension, it is a NOP,
	// so all predicates should be allowed.
	if (imm8 == 0x10 && pred != 0xe && ARM_getFeatureBits(Inst->csh->mode, ARM_FeatureRAS))
		result = MCDisassembler_SoftFail;

	return result;
}

static DecodeStatus DecodeCPSInstruction(MCInst *Inst, unsigned Insn,
		uint64_t Address, const void *Decoder)