Avi Kivity writes:
> How can I specify a constraint for a specific register, for example r8
> on x86_64?
>
> I can specify any of rax, rbx, rcx, and rdx using a,b, c, and d. But
> what about the rest of the register file?
Like this:
int poo (int N)
{
register int zz __asm__ ("r8") = N;
__asm__ ("mov %0, %0" : "+r"(zz));
return zz;
}
Andrew.
