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cabac: remove #if 0 cascade under never-set #ifdef ARCH_X86_DISABLED
Signed-off-by: Mans Rullgard <mans@mansr.com>
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@ -36,7 +36,6 @@
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#define CABAC_BITS 16
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#define CABAC_MASK ((1<<CABAC_BITS)-1)
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#define BRANCHLESS_CABAC_DECODER 1
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//#define ARCH_X86_DISABLED 1
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typedef struct CABACContext{
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int low;
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@ -300,70 +299,9 @@ static inline void renorm_cabac_decoder(CABACContext *c){
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}
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static inline void renorm_cabac_decoder_once(CABACContext *c){
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#ifdef ARCH_X86_DISABLED
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int temp;
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#if 0
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//P3:683 athlon:475
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__asm__(
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"lea -0x100(%0), %2 \n\t"
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"shr $31, %2 \n\t" //FIXME 31->63 for x86-64
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"shl %%cl, %0 \n\t"
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"shl %%cl, %1 \n\t"
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: "+r"(c->range), "+r"(c->low), "+c"(temp)
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);
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#elif 0
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//P3:680 athlon:474
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__asm__(
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"cmp $0x100, %0 \n\t"
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"setb %%cl \n\t" //FIXME 31->63 for x86-64
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"shl %%cl, %0 \n\t"
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"shl %%cl, %1 \n\t"
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: "+r"(c->range), "+r"(c->low), "+c"(temp)
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);
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#elif 1
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int temp2;
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//P3:665 athlon:517
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__asm__(
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"lea -0x100(%0), %%eax \n\t"
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"cltd \n\t"
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"mov %0, %%eax \n\t"
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"and %%edx, %0 \n\t"
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"and %1, %%edx \n\t"
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"add %%eax, %0 \n\t"
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"add %%edx, %1 \n\t"
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: "+r"(c->range), "+r"(c->low), "+a"(temp), "+d"(temp2)
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);
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#elif 0
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int temp2;
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//P3:673 athlon:509
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__asm__(
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"cmp $0x100, %0 \n\t"
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"sbb %%edx, %%edx \n\t"
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"mov %0, %%eax \n\t"
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"and %%edx, %0 \n\t"
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"and %1, %%edx \n\t"
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"add %%eax, %0 \n\t"
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"add %%edx, %1 \n\t"
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: "+r"(c->range), "+r"(c->low), "+a"(temp), "+d"(temp2)
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);
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#else
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int temp2;
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//P3:677 athlon:511
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__asm__(
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"cmp $0x100, %0 \n\t"
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"lea (%0, %0), %%eax \n\t"
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"lea (%1, %1), %%edx \n\t"
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"cmovb %%eax, %0 \n\t"
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"cmovb %%edx, %1 \n\t"
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: "+r"(c->range), "+r"(c->low), "+a"(temp), "+d"(temp2)
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);
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#endif
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#else
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//P3:675 athlon:476
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int shift= (uint32_t)(c->range - 0x100)>>31;
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c->range<<= shift;
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c->low <<= shift;
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#endif
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if(!(c->low & CABAC_MASK))
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refill(c);
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}
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