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libwmapro: coldfire asm for vector_fixmul_scalar, 1% speedup

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27607 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Nils Wallménius 2010-07-28 23:25:45 +00:00
parent 85f84060c4
commit 79ae416b95
1 changed files with 32 additions and 0 deletions
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32
apps/codecs/libwmapro/wmapro_math.h
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@ -238,6 +238,38 @@ static inline void vector_fixmul_window(int32_t *dst, const int32_t *src0,
: [dst]"+r"(dst), [src]"+r"(src) \
: [mul]"r"(mul) \
: "r0", "r1", "r2", "r3", "r4", "r5", "memory");
#elif defined (CPU_COLDFIRE)
#define VECT_MUL_SCALAR_KERNEL(dst, src, mul) \
int32_t tmp; \
asm volatile ( \
"movem.l (%[src]), %%d0-%%d3 \n\t" \
"mac.l %[mul], %%d0, %%acc0 \n\t" \
"mac.l %[mul], %%d1, %%acc1 \n\t" \
"mac.l %[mul], %%d2, %%acc2 \n\t" \
"mac.l %[mul], %%d3, %%acc3 \n\t" \
"move.l %%accext01, %[tmp] \n\t" \
"movclr.l %%acc0, %%d0 \n\t" \
"movclr.l %%acc1, %%d1 \n\t" \
"lsl.l #7, %%d0 \n\t" \
"move.b %[tmp], %%d0 \n\t" \
"swap %[tmp] \n\t" \
"lsl.l #7, %%d1 \n\t" \
"move.b %[tmp], %%d1 \n\t" \
"move.l %%accext23, %[tmp] \n\t" \
"movclr.l %%acc2, %%d2 \n\t" \
"movclr.l %%acc3, %%d3 \n\t" \
"lsl.l #7, %%d2 \n\t" \
"move.b %[tmp], %%d2 \n\t" \
"swap %[tmp] \n\t" \
"lsl.l #7, %%d3 \n\t" \
"move.b %[tmp], %%d3 \n\t" \
"movem.l %%d0-%%d3, (%[dst]) \n\t" \
"lea.l (4*4, %[src]), %[src]\n\t" \
"lea.l (4*4, %[dst]), %[dst]\n\t" \
: [dst] "+a" (dst), [src] "+a" (src),\
[tmp] "=d" (tmp) \
: [mul] "r" (mul) \
: "d0", "d1", "d2", "d3", "memory", "cc");
#else
#define VECT_MUL_SCALAR_KERNEL(dst, src, mul) \
dst[i ] = fixmul24(src[i ], mul); \