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Inline ASM in C/C++ code

 
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Panajev2001a



Joined: 20 Aug 2005
Posts: 100
PostPosted: Sat Aug 27, 2005 8:01 pm    Post subject: Inline ASM in C/C++ code Reply with quote
Is there a reason why code that compiled perfectly on GCC 2.95.2 (PS2Linux... yeah I know some instructions cannot be used on ALLEGREX, etc... it is a question of inline ASM syntax) have to be modified very uglily to even be recognized.

Example:

Original:

Code:
asm __volatile__ ("
.set push
.set noreorder
div.s %0, %1, %2
mtc1 $0, $f8

...

 


Modified to be recognized...:

Code:
asm __volatile__ (".set\tpush\n\t"
".set\tnoreorder\n\t"
"div.s\t%0, %1, %2\n\t"
"mtc1\t$0, $f8\n\t"

...



It makes writing in-line ASM slower and more annoying. Is there anything that can be done to get gcc/g++ to recognize the original inline ASM syntax ?
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mrbrown



Joined: 17 Jan 2004
Posts: 1536
PostPosted: Sat Aug 27, 2005 8:23 pm    Post subject: Reply with quote
The PS2 Linux compiler is extremely old. Multiline literals (continuing quotes) were deprecated and obsoleted a long time ago. There's nothing you can do to get psp-gcc to support multiline literals.

BTW you don't need tabs, a space should be fine. You don't need a tab after the newline either.
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