public void Set(FcRegister registerId, uint value)
{
switch (registerId)
{
case FcRegister.A:
A = (ushort)value;
break;
case FcRegister.B:
B = (ushort)value;
break;
case FcRegister.BL:
B = (ushort)((ushort)(B & 0xFF00) | (ushort)(value & 0x00FF));
break;
case FcRegister.BH:
B = (ushort)((ushort)(B & 0x00FF) | (ushort)(value & 0x00FF) << 8);
break;
case FcRegister.M:
M = (ushort)value;
break;
case FcRegister.N:
N = (ushort)value;
break;
case FcRegister.MN:
M = (ushort)(value >> 16);
N = (ushort)(value & 0x0000FFFF);
break;
case FcRegister.C:
C = (ushort)value;
break;
case FcRegister.S:
S = (ushort)value;
break;
case FcRegister.F:
F = (ushort)value;
break;
default:
dataRegisters[(byte)registerId] = (ushort)value;
break;
}
}
public uint Get(FcRegister registerId)
{
switch (registerId)
{
case FcRegister.A:
return(A);
case FcRegister.B:
return(B);
case FcRegister.BL:
return((ushort)(B & 0x00FF));
case FcRegister.BH:
return((ushort)(B >> 8));
case FcRegister.M:
return(M);
case FcRegister.N:
return(N);
case FcRegister.MN:
return(((uint)M << 16) | N);
case FcRegister.C:
return(C);
case FcRegister.S:
return(S);
case FcRegister.F:
return(F);
default:
return(dataRegisters.ContainsKey((byte)registerId)
? dataRegisters[(byte)registerId]
: 0u);
}
}
// R
public RegisterOperand(FcRegister register)
{
this.register = register;
}