Re: Runtime Altivec detection

On Friday 07 March 2003 08:02 pm, Bill Fink wrote:

Here is the code xine uses to do run time Altivec detection
(from xine-utils/cpu_accel.c):

#if defined (ARCH_PPC) && defined (ENABLE_ALTIVEC)
static sigjmp_buf jmpbuf;
static volatile sig_atomic_t canjump = 0;

static void sigill_handler (int sig)

[snip]

Compared to testing the CPU feature bits supplied by the kernel (for a long
time now; Ben could tell you exactly how long) this method seems *extremely*
messy. Please see my other posts (and Ben's) in this thread for details.

-Hollis
--
IBM Linux Technology Center

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