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Re: code questions:
Hi,
Check http://www.tldp.org/HOWTO/Assembly-HOWTO/gcc.html
and associated links.
Jose Luiz
zhlg_shuhan@sohu.com wrote:
> here is a assemble subroutine of PPC:
>
> #define HAL_LSBIT_INDEX(index, mask) \
> asm ( "neg 11,%1;" \
> "and 11,11,%1;" \
> "cntlzw %0,11;" \
> "subfic %0,%0,31;" \
> : "=r" (index) \
> : "r" (mask) \
> : "r11" \
> );
>
> could you tell me means of such as %1,%0,:,"=r" and so on, and where to get more info?
> i search them in processor mannul and gnu toolkit to look for them,but failed.
>
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