> On Thu, 17 Jun 1999, Richard B. Johnson wrote:
>
> > But outsw and insw do not use additional oprands. DS:ESI, ES:EDI, and EDX
> > are implicit by the definition. Not even a segment override is possible.
> > Therefore these opcodes should stand alone.
>
> Please check your Intel manuals. outs[bwl] can have a segment override.
>
I did before I posted the message. The only prefix allowed is the REP
(repeat) prefix. If I had a scanner, I'd send you the two pages 26-227,
26-228 of the Intel Rag, Intel 486 Microprocessor Familt Programmer's
reference manual. ISBN 1-55512-159-4.
It is the movs[bwd] string ops that can use a segment override. That's on
page 21-214 of the same rag
Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
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