//Register a logical opcode which does not support the S bit or update a destination
//register (such as TST or TEQ)
internal void RegisterDataOpLogical_CMP(DataOpLogicalBinary opHandler, uint base_opcode, string basename)
{
DataOpBuilderLogical b = new DataOpBuilderLogicalCMP();
b.opcode = base_opcode;
b.name = basename;
b.IsUnaryOperation = false;
b.BinaryOp = opHandler;
b.owner = this;
b.StartBuild();
}
//Register an arithmetic opcode which allows the S bit.
internal void RegisterDataOpLogical(DataOpLogicalBinary opHandler, uint base_opcode, string basename)
{
#if DEBUG
if ((base_opcode & s_mask) != 0)
{
throw new Exception("base_opcode and s_mask not disjoint registering " + basename);
}
#endif
DataOpBuilderLogical b = new DataOpBuilderLogical();
b.opcode = base_opcode;
b.name = basename;
b.IsUnaryOperation = false;
b.BinaryOp = opHandler;
b.owner = this;
b.StartBuild();
}
internal InstructionFunc GenerateLogicalDataOpBinary(DataOpEvaluateOperand2Func EvaluateOperand2, DataOpLogicalBinary BinaryOp, DataOpSaveResultFunc SaveResult, DataOpHandleSetFlagsFunc 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);
uint result = BinaryOp(a, b);
SaveResult(Rd, result);
SetFlags(opcode, Rd, result, shift_carry);
return 1;
});
}
