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| author | Nils Wallménius <nils@rockbox.org> | 2012-10-06 23:41:15 +0200 |
|---|---|---|
| committer | Nils Wallménius <nils@rockbox.org> | 2012-10-06 23:43:05 +0200 |
| commit | 3ac0fc7c907695d72f58c41907cef913cf81561f (patch) | |
| tree | c11c87f87f2645271bad607600f9d0e46bd1ca64 /lib/rbcodec | |
| parent | 2119f75af3e94a959451cd0dccde9ce38b19bcf0 (diff) | |
opus: cf inline asm for MULT32_32_Q31
speeds up decoding of a 64kbps test file by 2MHz on h300
Change-Id: I437d05278fe1c495715cf0e3477f9960d1df9d3a
Diffstat (limited to 'lib/rbcodec')
| -rw-r--r-- | lib/rbcodec/codecs/libopus/celt/fixed_generic.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h index 53f513b67b..28a1598d3e 100644 --- a/lib/rbcodec/codecs/libopus/celt/fixed_generic.h +++ b/lib/rbcodec/codecs/libopus/celt/fixed_generic.h @@ -71,7 +71,19 @@ static inline int32_t MULT16_32_Q15(int32_t a, int32_t b) #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),((b)&0x0000ffff)),15)) #endif -#if defined(CPU_ARM) +#if defined(CPU_COLDFIRE) +static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) +{ + int32_t r; + asm volatile ("mac.l %[a], %[b], %%acc0;" + "movclr.l %%acc0, %[r];" + : [r] "=r" (r) + : [a] "r" (a), [b] "r" (b) + : "cc"); + return r; +} + +#elif defined(CPU_ARM) static inline int32_t MULT32_32_Q31(int32_t a, int32_t b) { int32_t lo, hi; |