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SubjectRe: [PATCH] APM support doesn't compile with binutils
> On Wed, 25 Mar 1998, Linus Torvalds wrote:
> > So I think the APM bios access code is actually correct in specifying a
> > "l" on the push/pop operations.
> pushl %ds has better alignment and it pairs better with other 32-bit
> instructions. pushl %%ds does zero-extend. movl %%ds, %%eax does
> zero-extend as well, so the behavior seems to be symmetric. (i've just
> tested this to be sure ;).

Can someone please tell me the correct opcode for "pushl %ds"
and by what increment esp is changed by "pushl %ds"?


H.J. Lu (

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