/// <summary>
/// Rewrites the effective address of a memory load.
/// </summary>
/// <param name="mem"></param>
/// <returns></returns>
private Expression RewriteSrcEa(MemoryOperand mem)
{
Expression ea;
if (mem.Base != null)
{
ea = binder.EnsureRegister(mem.Base);
if (mem.Increment < 0)
{
m.Assign(ea, m.AddSubSignedInt(ea, mem.Increment));
}
if (mem.Offset != null)
{
ea = m.IAdd(ea, mem.Offset);
}
if (mem.Increment > 0)
{
var tmp = binder.CreateTemporary(ea.DataType);
m.Assign(tmp, ea);
m.Assign(ea, m.AddSubSignedInt(ea, mem.Increment));
ea = tmp;
}
}
else
{
ea = arch.MakeAddressFromConstant(mem.Offset, false);
}
return(ea);
}
/// <summary>
/// Rewrites the effective address of a memory load.
/// </summary>
/// <param name="mem"></param>
/// <returns></returns>
private Expression RewriteSrcEa(MemoryOperand mem)
{
Expression ea;
if (mem.Base != null)
{
if (mem.Increment < 0)
{
throw new NotImplementedException("predec");
}
ea = binder.EnsureRegister(mem.Base);
if (mem.Offset != null)
{
ea = m.IAdd(ea, mem.Offset);
}
}
else
{
ea = arch.MakeAddressFromConstant(mem.Offset, false);
}
return(ea);
}