public void Test_AsmSourceTools_parseMemOperand()
{
// see intel manual : 3.7.5 Specifying an Offset
// 32-bit mode:
// possible bases: EAX, EBX, ECX, EDX, ESP, EBP, ESI, EDI
// possible index: EAX, EBX, ECX, EDX, EBP, ESI, EDI
// scale: 1, 2, 4, 8
// displacement none, 8-bit, 16-bit, 32-bit
// 64-bit mode:
// possible bases: RAX, RBX, RCX, RDX, RSP, RBP, RSI, RDI
// possible index: RAX, RBX, RCX, RDX, RSP, RBP, RSI, RDI
// scale: 1, 2, 4, 8
// displacement none, 8-bit, 16-bit, 32-bit
Random rnd = new Random((int)DateTime.Now.Ticks);
Rn[] bases32 = new Rn[] { Rn.EAX, Rn.EBX, Rn.ECX, Rn.EDX, Rn.ESP, Rn.EBP, Rn.ESI, Rn.EDI };
Rn[] index32 = new Rn[] { Rn.EAX, Rn.EBX, Rn.ECX, Rn.EDX, Rn.EBP, Rn.ESI, Rn.EDI };
Rn[] bases64 = new Rn[] { Rn.RAX, Rn.RBX, Rn.RCX, Rn.RDX, Rn.RSP, Rn.RBP, Rn.RSI, Rn.RDI };
Rn[] index74 = new Rn[] { Rn.RAX, Rn.RBX, Rn.RCX, Rn.RDX, Rn.RSP, Rn.RBP, Rn.RSI, Rn.RDI };
int[] scales = new int[] { 0, 1, 2, 4, 8 };
for (int i = 0; i < bases32.Length; ++i)
{
Rn b = bases32[i];
{
string str = "[" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(Rn.NOREG, t.indexReg, "index: " + str);
Assert.AreEqual(0, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
for (int j = 0; j < index32.Length; ++j)
{
Rn idx = index32[j];
{
string str = "[" + b + "+" + idx + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(1, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
{
string str = "[" + idx + "+" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
//idx and base can be interchanged
//Assert.AreEqual(b, t.Item2, "base: " + str);
//Assert.AreEqual(idx, t.Item3, "index: " + str);
Assert.AreEqual(1, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
for (int k = 0; k < scales.Length; ++k)
{
int s = scales[k];
//Offset = Base + (Index * Scale) + Displacement
{
string str = "[" + b + "+" + idx + " * " + s + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
{
string str = "[" + b + "+" + s + " * " + idx + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
{
string str = "[" + s + " * " + idx + "+" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
{
string str = "[" + idx + " * " + s + "+" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(0, t.displacement, "displacement: " + str);
}
for (int m = 0; m < 10; ++m)
{
long disp = RandLong(32, rnd);
{
{
string str = "[" + b + "+" + idx + " * " + s + "+" + disp + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + b + "+" + s + " * " + idx + "+" + disp + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + s + " * " + idx + "+" + b + "+" + disp + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + idx + " * " + s + "+" + b + "+" + disp + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
}
{
{
string str = "[" + disp + "+" + b + "+" + idx + " * " + s + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + b + "+" + disp + "+" + idx + " * " + s + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + b + "+" + disp + "+" + s + " * " + idx + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + s + " * " + idx + "+" + disp + "+" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
{
string str = "[" + idx + " * " + s + "+" + disp + "+" + b + "]";
var t = AsmSourceTools.ParseMemOperand(str);
Assert.AreEqual(true, t.valid, str);
Assert.AreEqual(b, t.baseReg, "base: " + str);
Assert.AreEqual(idx, t.indexReg, "index: " + str);
Assert.AreEqual(s, t.scale, "scale: " + str);
Assert.AreEqual(disp, t.displacement, "displacement: " + str);
}
}
}
}
}
}
}
