Talk:Inline Assembly: Difference between revisions
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Page with the contents on it: http://www.osdev.org/osfaq2/index.php/GasIntelHowtoMirror |
Page with the contents on it: http://www.osdev.org/osfaq2/index.php/GasIntelHowtoMirror |
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-- DasCandy |
-- DasCandy |
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Under "Input Operands" I dont think the example code: |
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<source lang="c"> |
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asm("mov %%eax,%%ebx": : "a" (amount));//useless but it gets the idea |
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</source> |
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matches the text, namely I think it should be : |
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<source lang="c"> |
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int dummy; |
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asm("add %%eax,%%eax": "=a" (dummy)) : "0" (amount));// the "0" indicate that it's using the same register as the first parameter |
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</source> |
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--dormito |
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[[User:Bewing|Bewing]] 00:20, 28 February 2007 (CST) |
[[User:Bewing|Bewing]] 00:20, 28 February 2007 (CST) |
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Revision as of 10:19, 13 February 2014
The following text came from the OSFAQ on AT&T vs Intel syntax differences -- but it seems to me that it belongs here, instead:
You can switch to intel syntax mode in the inline assembler with a pseudo op, and switch back at the end of the block. -- MirAbile
Page with the contents on it: http://www.osdev.org/osfaq2/index.php/GasIntelHowtoMirror -- DasCandy
Under "Input Operands" I dont think the example code:
asm("mov %%eax,%%ebx": : "a" (amount));//useless but it gets the idea
matches the text, namely I think it should be :
int dummy;
asm("add %%eax,%%eax": "=a" (dummy)) : "0" (amount));// the "0" indicate that it's using the same register as the first parameter
--dormito
Bewing 00:20, 28 February 2007 (CST)