[Ffmpeg-devel] Still struggling with -fPIC and MMX asm-code

Tobias Grimm listaccount
Sat Jul 16 09:04:33 CEST 2005

Michael Niedermayer schrieb:

>well, not exactly, the stack grows downward not upward, 
You're right. Of course this should be:

"movl %%"REG_b", -4(%%esp)
"movl -4(%%esp), %%"REG_b"

>btw, another possible solution for this case would be to
>addl %2, %%"REG_a"
>movq (%%"REG_a"), %%mm5
>subl %2, %%"REG_a"

Is this faster than "movq (%%"REG_b", %%"REG_a"), %%mm5" ?


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