protected override void Compile(CodeContext c)
{
var op = c.Int32("op");
var a = c.Int32("a");
var b = c.Int32("b");
var zero = c.Label();
var add = c.Label();
var sub = c.Label();
var mul = c.Label();
var div = c.Label();
c.SetArgument(0, op);
c.SetArgument(1, a);
c.SetArgument(2, b);
c.Cmp(op, 0);
c.Jz(add);
c.Cmp(op, 1);
c.Jz(sub);
c.Cmp(op, 2);
c.Jz(mul);
c.Cmp(op, 3);
c.Jz(div);
c.Bind(zero);
c.Xor(a, a);
c.Ret(a);
c.Bind(add);
c.Add(a, b);
c.Ret(a);
c.Bind(sub);
c.Sub(a, b);
c.Ret(a);
c.Bind(mul);
c.Imul(a, b);
c.Ret(a);
c.Bind(div);
c.Cmp(b, 0);
c.Jz(zero);
var z = c.Int32("z");
c.Xor(z, z);
c.Idiv(z, a, b);
c.Ret(a);
}
protected override void Compile(CodeContext c)
{
var dstHi = c.IntPtr("dstHi");
var dstLo = c.IntPtr("dstLo");
var vLo = c.Int32("vLo");
var src = c.Int32("src");
c.SetArgument(0, dstHi);
c.SetArgument(1, dstLo);
c.SetArgument(2, vLo);
c.SetArgument(3, src);
var vHi = c.Int32("vHi");
c.Imul(vHi, vLo, src);
c.Mov(Memory.DWord(dstHi), vHi);
c.Mov(Memory.DWord(dstLo), vLo);
}
protected override void Compile(CodeContext c)
{
var dst = c.IntPtr("dst");
var src = c.IntPtr("src");
c.SetArgument(0, dst);
c.SetArgument(1, src);
for (var i = 0; i < 4; i++)
{
var x = c.Int32("x");
var y = c.Int32("y");
var hi = c.Int32("hi");
c.Mov(x, Memory.DWord(src, 0));
c.Mov(y, Memory.DWord(src, 4));
c.Imul(hi, x, y);
c.Add(Memory.DWord(dst, 0), hi);
c.Add(Memory.DWord(dst, 4), x);
}
}