[ECOS] code questions:

[zhlg_shuhan@sohu.com]

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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