Make sure the compiler is able to make something useful of this.
As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
- If gcc was allright, it really would need no temporaries, and no
+ If gcc was alright, it really would need no temporaries, and no
stack space to save stuff on. */
register void *return_dst __asm__ ("r10") = pdst;