gcc using clobbered register as input with inline assembly
Timur Tabi
ttabi@interactivesi.com
Mon Mar 26 10:38:00 GMT 2001
** Reply to message from "Zack Weinberg" <zackw@stanford.edu> on Mon, 26 Mar
2001 10:20:21 -0800
> inline void
> BeginCpuTick(u64 *const pTime)
> {
> register u64 xtime;
> asm volatile ("rdtsc" : "=A" (xtime));
> *pTime = xtime;
> }
Could I replace the above with:
inline void
BeginCpuTick(u64 *const pTime)
{
register u64 xtime;
asm volatile ("rdtsc" : "=A" (*ptime));
}
--
Timur Tabi - ttabi@interactivesi.com
Interactive Silicon - http://www.interactivesi.com
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