Re: PATCH - assembler glitches

Alan Modra (alan@SPRI.Levels.UniSA.Edu.Au)
Wed, 13 Oct 1999 18:26:02 +0930 (CST)


On Tue, 12 Oct 1999, Horst von Brand wrote:

> Brian Gerst <bgerst@quark.vpplus.com> said:
> > Using movw with the segment registers, while logically correct, causes
> > gas to produce size prefix opcodes. Since the segment registers are
> > always 16-bit, these prefixes are redundant. Using movl tricks gas into
> > not producing them.

Strictly speaking, the prefix is only redundant when moving *to* a segment
register.

> Which versions of gas have that particular bug?

It was fixed in the Cygnus sources in June 1998.

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