public IndirectRegister(Register baseReg, int disp, Register indexReg, byte scale, bool force32)
{
if (baseReg == null)
throw new ArgumentNullException ("BaseReg must be non null");
if (indexReg == ESP)
throw new ArgumentException ("IndexReg cannot be ESP");
this.baseReg = baseReg;
this.disp = disp;
this.indexReg = indexReg;
this.scale = scale;
this.force32 = force32;
}
public void EncodeModRm(Stream buffer, Register reg)
{
EncodeModRm (buffer, reg.Index);
}
void TestEncode(Register a, Register b, byte expected)
{
MemoryStream ms = new MemoryStream ();
a.EncodeModRm (ms, b);
Assert.AreEqual (1, ms.Length, string.Format ("stream length {0},{1}", a, b));
ms.Position = 0;
Assert.AreEqual (expected, (byte)ms.ReadByte (), string.Format ("encoded ModRM {0},{1}", a, b));
}
public IndirectRegister(Register baseReg, ScaledRegister scale)
: this(baseReg, 0, scale.Register, scale.Scale, false)
{
}
public IndirectRegister(Register baseReg, int disp, Register indexReg, byte scale)
: this(baseReg, disp, indexReg, scale, false)
{
}
public IndirectRegister(Register baseReg, int disp)
: this(baseReg, disp, null, SCALE_1, false)
{
}
public IndirectRegister(Register baseReg)
: this(baseReg, 0, null, SCALE_1, false)
{
}
public ScaledRegister(Register reg, byte scale)
{
this.reg = reg;
switch (scale) {
case 1:
this.scale = 0;
break;
case 2:
this.scale = 1;
break;
case 4:
this.scale = 2;
break;
case 8:
this.scale = 3;
break;
default:
throw new ArgumentException ("Invalid scale value");
}
}