public OperatorEffect GetOperatorEffectFor(Byte[] code)
{
switch (code[0])
{
case 0x05:
return(OperatorEffect.Add);
case 0x29:
return(OperatorEffect.Sub);
case 0x31:
return(OperatorEffect.Xor);
case 0x75:
return(OperatorEffect.Jnz);
case 0x83:
{
var rm = ModRM.GetOpcodeGroupIndexFor(code);
switch (rm)
{
case 0:
return(OperatorEffect.Add);
case 4:
return(OperatorEffect.And);
case 5:
return(OperatorEffect.Sub);
case 7:
return(OperatorEffect.Cmp);
default:
return(OperatorEffect.Unknown);
}
}
case 0xc9:
return(OperatorEffect.Leave);
case 0xc3:
return(OperatorEffect.Return);
case 0x90:
return(OperatorEffect.None);
case 0xc1:
{
var rm = ModRM.GetOpcodeGroupIndexFor(code);
switch (rm)
{
case 4:
return(OperatorEffect.Shl);
case 5:
return(OperatorEffect.Shr);
default:
return(OperatorEffect.Unknown);
}
}
case 0xe8:
return(OperatorEffect.Call);
default:
return(OperatorEffect.Assignment);
}
}