From: viktor DOT lundstrom AT mailbox DOT swipnet DOT se (Viktor Lundstrom)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: inline asm question
Message-ID: <35a89e88.4547911@nntpserver.swip.net>
References: <35A83CF5 DOT E23 AT mailexcite DOT com>
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Date: Sun, 12 Jul 1998 11:33:14 GMT
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To: djgpp AT delorie DOT com
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On Sat, 11 Jul 1998 22:35:01 -0600, Bob Berkawitz
<oonly AT mailexcite DOT com> wrote:

>When I try to add es to the clobber I get this error:
>	unknown register name 'es' in 'asm'
>inline statement looks like this:
>	asm("movb $0x00, es"
>	    :/*no output*/
>	    :/*no input*/
>	    :"es");
>
>Do I not need to put es in the clobber list? or is their another way to
>tell djgpp that I have changed its value?  I dont want to push es onto
>the stack to preserve its value.
I don't think it's possible to put es on the clobberlist. 
I'm not sure, but I don't think you have to bother about whats
in es, but you have to push/pop DS.