public IEnumerable <string> Def(RegType regType)
{
// MOVE D2,D0 Def: D0
// MOVE (A2)+,D0 Def: D0, A2
// MOVE (A2)+,A1 Def: A2
// MOVE (A2)+,(A1)- Def: A2,A1
if (Opcode == M68kOpcode.Jsr)
{
if (regType == RegType.Data)
{
yield return("D0");
yield return("D1");
}
if (regType == RegType.Address)
{
yield return("A0");
yield return("A1");
}
}
if (Opcode == M68kOpcode.RegDef)
{
foreach (var du in DefsUses)
{
if ((du[0] == 'D' && regType == RegType.Data) || (du[0] == 'A' && regType == RegType.Address))
{
yield return(du);
}
}
}
if (Opcode == M68kOpcode.Cmp)
{
yield break;
}
if (Register2 != null && AddressingMode2 == M68kAddressingMode.Register && Register2.Type == regType)
{
yield return(Register2.ToString());
}
if (Register1 != null && Register1.Type == regType)
{
switch (AddressingMode1)
{
case M68kAddressingMode.AddressWithPostIncrement:
case M68kAddressingMode.AddressWithPostDecrement:
case M68kAddressingMode.AddressWithPreDecrement:
case M68kAddressingMode.AddressWithPreIncrement:
yield return(Register1.ToString());
break;
}
}
if (Register2 != null && Register2.Type == regType)
{
switch (AddressingMode2)
{
case M68kAddressingMode.AddressWithPostIncrement:
case M68kAddressingMode.AddressWithPostDecrement:
case M68kAddressingMode.AddressWithPreDecrement:
case M68kAddressingMode.AddressWithPreIncrement:
yield return(Register2.ToString());
break;
}
}
}
public IEnumerable <string> Use(RegType regType)
{
if (Opcode == M68kOpcode.RegUse)
{
foreach (var du in DefsUses)
{
yield return(du);
}
}
if (Opcode == M68kOpcode.Cmp || Opcode == M68kOpcode.Lsr)
{
if (Register1 != null)
{
yield return(Register1.ToString());
}
yield return(Register2.ToString());
yield break;
}
if (Register1 != null && Register1.Type == regType)
{
yield return(Register1.ToString());
}
if ((Opcode == M68kOpcode.Add || Opcode == M68kOpcode.Sub || Opcode == M68kOpcode.Adda) && Register2 != null && Register2.Type == regType)
{
yield return(Register2.ToString());
}
if (Register2 != null && Register2.Type == regType)
{
switch (AddressingMode2)
{
case M68kAddressingMode.Address:
case M68kAddressingMode.AddressWithOffset:
case M68kAddressingMode.AddressWithPostIncrement:
case M68kAddressingMode.AddressWithPostDecrement:
case M68kAddressingMode.AddressWithPreDecrement:
case M68kAddressingMode.AddressWithPreIncrement:
yield return(Register2.ToString());
break;
}
}
if (Opcode == M68kOpcode.Rts)
{
if (regType == RegType.Data)
{
if (FinalRegister1.HasValue)
{
yield return("D0");
}
yield return("D2");
yield return("D3");
yield return("D4");
yield return("D5");
yield return("D6");
yield return("D7");
}
if (regType == RegType.Address)
{
yield return("A2");
yield return("A3");
yield return("A4");
yield return("A5");
yield return("A6");
}
}
}