protected int EoriWord(int opcode)
{
int s = cpu.FetchPCWord();
IOperand dst = cpu.ResolveDstEA((opcode >> 3) & 0x07, opcode & 0x07, Size.Word);
int d = dst.GetWord();
int r = s ^ d;
if (dst.IsSR())
{
if (cpu.IsSupervisorMode())
{
cpu.SetSR(r);
}
else
{
cpu.RaiseSRException();
return(34);
}
}
else
{
dst.SetWord(r);
cpu.CalcFlags(InstructionType.EOR, s, d, r, Size.Word);
}
return(dst.IsRegisterMode() ? 8 : 12 + dst.GetTiming());
}
protected int EoriByte(int opcode)
{
int s = cpu.FetchPCWord() & 0x00ff;
IOperand dst = cpu.ResolveDstEA((opcode >> 3) & 0x07, opcode & 0x07, Size.Byte);
int d = dst.GetByte();
int r = s ^ d;
dst.SetByte(r);
if (!dst.IsSR())
{
cpu.CalcFlags(InstructionType.EOR, s, d, r, Size.Byte);
}
return(dst.IsRegisterMode() ? 8 : 12 + dst.GetTiming());
}
protected int OriByte(int opcode)
{
int s = CpuUtils.SignExtendByte(cpu.FetchPCWord());
IOperand dst = cpu.ResolveDstEA((opcode >> 3) & 0x07, opcode & 0x07, Size.Byte);
int d = dst.GetByteSigned();
int r = s | d;
dst.SetByte(r);
if (!dst.IsSR())
{
cpu.CalcFlags(InstructionType.OR, s, d, r, Size.Byte);
}
return(dst.IsRegisterMode() ? 8 : 12 + dst.GetTiming());
}
