ASM and memory addresses of local automatic variables

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Article #50231

#50231

From: Chris Asano,SDSC 230,45031,,{sta...
Date: Wed, 27 Oct 1993 18:54

26 lines
1269 bytes

I have been able to use ASM with gcc on the DEC alpha when my variables
are global.  I cannot figure out how to do this when the variables are local.
I tried various combinations of syntax following the gcc manual pages on
asm.  I'm not sure if this problem is gcc asm syntax or possibly some
assembler-related specifics.

works:

int i;
int j=1;
main()
{
   asm ("ldl $1, j" : :);
   asm ("stl $1, i" : :);
   printf("%d" ,i);
}

fails
main()
(
   int i;
   int j=1;
   asm ("ldl $1, j" : :);
   asm ("stl $1, i" : :);
   printf("%d" ,i);
}

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Message-ID: <2amg5t$fn3@pravda.sdsc.edu>

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References: <1993Oct18.110924.13753@uwasa.fi>

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From: asano@sdsc.edu (Chris Asano,SDSC 230,45031,,{staff},)
Newsgroups: gnu.gcc.help
Subject: ASM and memory addresses of local automatic variables
Date: 27 Oct 1993 18:54:53 GMT
Organization: San Diego Supercomputer Center @ UCSD
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