* Andy Lutomirski <l...@amacapital.net> wrote: > The SDM says: > > If the source operand is an immediate of size less than the operand size, a > sign-extended value is pushed on the stack. If the source operand is a > segment > register (16 bits) and the operand size is 64-bits, a zero- extended value is > pushed on the stack; if the operand size is 32-bits, either a zero-extended > value is pushed on the stack or the segment selector is written on the stack > using a 16-bit move. For the last case, all recent Core and Atom processors > perform a 16-bit move, leaving the upper portion of the stack location > unmodified. > > This makes me think that even new processors are quirky.
Oh well ... Thanks, Ingo