Date: Sat, 16 May 1998 10:53:44 -0400 (EDT) From: Luoqi Chen <luoqi@watermarkgroup.com> To: alk@pobox.com, current@FreeBSD.ORG Subject: Re: as chokes on cc output Message-ID: <199805161453.KAA02606@lor.watermarkgroup.com>
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> I'm getting messages like so:
> /var/tmp/ccro2473.s:26621: Error: operands given don't match any known 386 instruction
> from asm lines like so:
> #APP
> fldln2; fxch; fyl2x
> #NO_APP
> in gcc-generated code. I'm clueless w.r.t. intel asm code and binutils. What's
> the deal? It's a bug, anyhow.
These are i387 instructions. The problem is that gas doesn't know fxch is
a shorthand for fxch %st(1). Just add the parameter %st(1), like
__asm__("fldln2; fxch %st(1); fyl2x");
-lq
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