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Re: Post-increment constraint in inline assembly (SuperH)

On 29.01.2018 10:12, Andrew Haley wrote:

On 29/01/18 09:05, Georg-Johann Lay wrote:

A different approach is to explicitly use post-increment if that's the
favourable addressing mode:

__asm__ ("movua.l %1, @%0+"
           : "=z" (longword), "+r" (src)
           : "m" (*src)


I'm not familiar with SuperH, but isn't src %1 in this asm, when it
should be %0 ?


Yes, at least according to Segher's asm dump:

#APP
        movua.l @r4+, r0
#NO_APP

Hence the source should read something like

__asm__ ("movua.l @%1+, %0"
         : "=z" (longword), "+r" (src)
         : "m" (*src));

instead.  Thanks for spotting this.

Johann
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