internal void DataOpHandleSetFlagsAWC_NonCMP(uint opcode, uint Rd, AWCResult awcResult)
{
if (Rd == GeneralPurposeRegisters.PCRegisterIndex)
{
CPSR.RestoreCPUMode();
}
else
{
DataOpHandleSetFlagsAWC_CMP(opcode, Rd, awcResult);
}
}
internal InstructionFunc GenerateAWCDataOp(DataOpEvaluateOperand2Func EvaluateOperand2, DataOpAWCOperation AWCOp, DataOpSaveResultFunc SaveResult, DataOpHandleSetFlagsAWCFunc SetFlags)
{
return(delegate(uint opcode)
{
uint Rd = ((opcode & rd_mask) >> 12);
uint Rn = ((opcode & rn_mask) >> 16);
uint a = get_reg(Rn);
bool shift_carry = false;
uint b = EvaluateOperand2(opcode, ref shift_carry);
AWCResult awcResult = AWCOp(a, b);
SaveResult(Rd, awcResult.result);
SetFlags(opcode, Rd, awcResult);
return 1;
});
}
internal void DataOpHandleSetFlagsAWC_CMP(uint opcode, uint Rd, AWCResult awcResult)
{
//The CPSR is set the same way for all AWC-based instructions (the only difference
//is the input to AWC).
CPSR.set_NZCV((awcResult.result & 0x80000000) != 0, awcResult.result == 0, awcResult.carry_out, awcResult.overflow);
}
internal void DataOpHandleSetFlagsAWC_NOP(uint opcode, uint Rd, AWCResult awcResult)
{
}
