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| author | Mans Rullgard <mans@mansr.com> | 2011-06-20 10:06:07 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-06-20 22:36:31 +0100 |
| commit | 3fc4e36c78004b37b6179423231e3e0daa3c7e74 (patch) | |
| tree | e320be1f501e0273e1619e882d5f7b6c4c2f33bd /libavcodec/x86 | |
| parent | e4b5a204aa2269cc249771fd49a89e7b4af32215 (diff) | |
| download | ffmpeg-3fc4e36c78004b37b6179423231e3e0daa3c7e74.tar.gz | |
x86: h264: remove hardcoded edx in decode_significance[_8x8]_x86()
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/x86')
| -rw-r--r-- | libavcodec/x86/h264_i386.h | 72 |
1 files changed, 37 insertions, 35 deletions
diff --git a/libavcodec/x86/h264_i386.h b/libavcodec/x86/h264_i386.h index a0dd7ea783..b303347c0f 100644 --- a/libavcodec/x86/h264_i386.h +++ b/libavcodec/x86/h264_i386.h @@ -42,31 +42,32 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, void *end= significant_coeff_ctx_base + max_coeff - 1; int minusstart= -(int)significant_coeff_ctx_base; int minusindex= 4-(int)index; + int bit; x86_reg coeff_count; int low; __asm__ volatile( - "movl %a9(%4), %%esi \n\t" - "movl %a10(%4), %3 \n\t" + "movl %a10(%5), %%esi \n\t" + "movl %a11(%5), %3 \n\t" "2: \n\t" - BRANCHLESS_GET_CABAC("%%edx", "%4", "(%1)", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a11") + BRANCHLESS_GET_CABAC("%4", "%5", "(%1)", "%3", + "%w3", "%%esi", "%k0", "%b0", "%a12") - "test $1, %%edx \n\t" + "test $1, %4 \n\t" " jz 3f \n\t" - "add %8, %1 \n\t" + "add %9, %1 \n\t" - BRANCHLESS_GET_CABAC("%%edx", "%4", "(%1)", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a11") + BRANCHLESS_GET_CABAC("%4", "%5", "(%1)", "%3", + "%w3", "%%esi", "%k0", "%b0", "%a12") - "sub %8, %1 \n\t" + "sub %9, %1 \n\t" "mov %2, %0 \n\t" - "movl %5, %%ecx \n\t" + "movl %6, %%ecx \n\t" "add %1, %%"REG_c" \n\t" "movl %%ecx, (%0) \n\t" - "test $1, %%edx \n\t" + "test $1, %4 \n\t" " jnz 4f \n\t" "add $4, %0 \n\t" @@ -74,24 +75,24 @@ static int decode_significance_x86(CABACContext *c, int max_coeff, "3: \n\t" "add $1, %1 \n\t" - "cmp %6, %1 \n\t" + "cmp %7, %1 \n\t" " jb 2b \n\t" "mov %2, %0 \n\t" - "movl %5, %%ecx \n\t" + "movl %6, %%ecx \n\t" "add %1, %%"REG_c" \n\t" "movl %%ecx, (%0) \n\t" "4: \n\t" - "add %7, %k0 \n\t" + "add %8, %k0 \n\t" "shr $2, %k0 \n\t" - "movl %%esi, %a9(%4) \n\t" - "movl %3, %a10(%4) \n\t" + "movl %%esi, %a10(%5) \n\t" + "movl %3, %a11(%5) \n\t" :"=&r"(coeff_count), "+r"(significant_coeff_ctx_base), "+m"(index), - "=&r"(low) + "=&r"(low), "=&r"(bit) :"r"(c), "m"(minusstart), "m"(end), "m"(minusindex), "m"(last_off), "i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)), "i"(offsetof(CABACContext, bytestream)) - : "%"REG_c, "%edx", "%esi", "memory" + : "%"REG_c, "%esi", "memory" ); return coeff_count; } @@ -100,39 +101,40 @@ static int decode_significance_8x8_x86(CABACContext *c, uint8_t *significant_coeff_ctx_base, int *index, x86_reg last_off, const uint8_t *sig_off){ int minusindex= 4-(int)index; + int bit; x86_reg coeff_count; int low; x86_reg last=0; __asm__ volatile( - "movl %a9(%4), %%esi \n\t" - "movl %a10(%4), %3 \n\t" + "movl %a10(%5), %%esi \n\t" + "movl %a11(%5), %3 \n\t" "mov %1, %%"REG_D" \n\t" "2: \n\t" - "mov %7, %0 \n\t" + "mov %8, %0 \n\t" "movzbl (%0, %%"REG_D"), %%edi \n\t" - "add %6, %%"REG_D" \n\t" + "add %7, %%"REG_D" \n\t" - BRANCHLESS_GET_CABAC("%%edx", "%4", "(%%"REG_D")", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a11") + BRANCHLESS_GET_CABAC("%4", "%5", "(%%"REG_D")", "%3", + "%w3", "%%esi", "%k0", "%b0", "%a12") "mov %1, %%edi \n\t" - "test $1, %%edx \n\t" + "test $1, %4 \n\t" " jz 3f \n\t" "movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t" - "add %6, %%"REG_D" \n\t" - "add %8, %%"REG_D" \n\t" + "add %7, %%"REG_D" \n\t" + "add %9, %%"REG_D" \n\t" - BRANCHLESS_GET_CABAC("%%edx", "%4", "(%%"REG_D")", "%3", - "%w3", "%%esi", "%k0", "%b0", "%a11") + BRANCHLESS_GET_CABAC("%4", "%5", "(%%"REG_D")", "%3", + "%w3", "%%esi", "%k0", "%b0", "%a12") "mov %2, %0 \n\t" "mov %1, %%edi \n\t" "movl %%edi, (%0) \n\t" - "test $1, %%edx \n\t" + "test $1, %4 \n\t" " jnz 4f \n\t" "add $4, %0 \n\t" @@ -146,16 +148,16 @@ static int decode_significance_8x8_x86(CABACContext *c, "mov %2, %0 \n\t" "movl %%edi, (%0) \n\t" "4: \n\t" - "addl %5, %k0 \n\t" + "addl %6, %k0 \n\t" "shr $2, %k0 \n\t" - "movl %%esi, %a9(%4) \n\t" - "movl %3, %a10(%4) \n\t" - :"=&r"(coeff_count),"+m"(last), "+m"(index), "=&r"(low) + "movl %%esi, %a10(%5) \n\t" + "movl %3, %a11(%5) \n\t" + :"=&r"(coeff_count),"+m"(last), "+m"(index), "=&r"(low), "=&r"(bit) :"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off), "m"(last_off), "i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)), "i"(offsetof(CABACContext, bytestream)) - : "%"REG_c, "%edx", "%esi", "%"REG_D, "memory" + : "%"REG_c, "%esi", "%"REG_D, "memory" ); return coeff_count; } |