diff options
| author | Josh Coalson <jcoalson@users.sourceforce.net> | 2007-03-30 00:54:17 +0000 |
|---|---|---|
| committer | Josh Coalson <jcoalson@users.sourceforce.net> | 2007-03-30 00:54:17 +0000 |
| commit | 5fa534f56f823e0d5fa75fbd75f67087382a424d (patch) | |
| tree | b9e87456edc0194eaeff9027a0ff5995a347e1a4 | |
| parent | 7e174a4f8425b018d04ea09e4cbda42b8ebc7c8f (diff) | |
| download | flac-5fa534f56f823e0d5fa75fbd75f67087382a424d.tar.gz | |
minor optimization
| -rw-r--r-- | src/libFLAC/ia32/bitreader_asm.nasm | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/libFLAC/ia32/bitreader_asm.nasm b/src/libFLAC/ia32/bitreader_asm.nasm index 8c43a0b1..5d1bbfa4 100644 --- a/src/libFLAC/ia32/bitreader_asm.nasm +++ b/src/libFLAC/ia32/bitreader_asm.nasm @@ -129,7 +129,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap and ebx, 31 ; ebx = 'i' = # of leading 0 bits in 'b' (eax) add ecx, ebx ; cbits += i; add edi, ebx ; uval += i; - add ecx, 1 ; cbits++; /* skip over stop bit */ + add ecx, byte 1 ; cbits++; /* skip over stop bit */ test ecx, ~31 jz near .break1 ; if(cbits >= FLAC__BITS_PER_WORD) { /* faster way of testing if(cbits == FLAC__BITS_PER_WORD) */ ; crc16_update_word_(br, br->buffer[cwords]); @@ -137,7 +137,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap bswap edx ; edx = br->buffer[cwords] swapped; now we can CRC the bytes from LSByte to MSByte which makes things much easier mov ecx, [ebp + 28] ; ecx <- br->crc16_align mov eax, [ebp + 24] ; ax <- br->read_crc (a.k.a. crc) -%if FLAC__PUBLIC_NEEDS_UNDERSCORE +%ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE mov edi, _FLAC__crc16_table %else mov edi, FLAC__crc16_table @@ -176,7 +176,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap mov [ebp + 24], eax ; br->read_crc <- crc pop edi - add esi, 1 ; cwords++; + add esi, byte 1 ; cwords++; xor ecx, ecx ; cbits = 0; ; } jmp near .break1 ; goto break1; @@ -213,7 +213,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap bswap edx ; edx = br->buffer[cwords] swapped; now we can CRC the bytes from LSByte to MSByte which makes things much easier mov ecx, [ebp + 28] ; ecx <- br->crc16_align mov eax, [ebp + 24] ; ax <- br->read_crc (a.k.a. crc) -%if FLAC__PUBLIC_NEEDS_UNDERSCORE +%ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE mov edi, _FLAC__crc16_table %else mov edi, FLAC__crc16_table @@ -252,7 +252,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap mov [ebp + 24], eax ; br->read_crc <- crc pop edi - add esi, 1 ; cwords++; + add esi, byte 1 ; cwords++; xor ecx, ecx ; cbits = 0; ; /* didn't find stop bit yet, have to keep going... */ ; } @@ -291,7 +291,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap and ebx, 31 ; ebx = 'i' = # of leading 0 bits in 'b' (eax) add ecx, ebx ; cbits += i; add edi, ebx ; uval += i; - add ecx, 1 ; cbits++; /* skip over stop bit */ + add ecx, byte 1 ; cbits++; /* skip over stop bit */ jmp short .break1 ; goto break1; .c1_next3: ; } else { sub edi, ecx @@ -345,7 +345,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap ;; ebp br ;; [esp] ucbits sub [esp], edi ; ucbits -= uval; - sub dword [esp], 1 ; ucbits--; /* account for stop bit */ + sub dword [esp], byte 1 ; ucbits--; /* account for stop bit */ ; ; read binary part @@ -434,7 +434,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap bswap edx ; edx = br->buffer[cwords] swapped; now we can CRC the bytes from LSByte to MSByte which makes things much easier mov ecx, [ebp + 28] ; ecx <- br->crc16_align mov eax, [ebp + 24] ; ax <- br->read_crc (a.k.a. crc) -%if FLAC__PUBLIC_NEEDS_UNDERSCORE +%ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE mov edi, _FLAC__crc16_table %else mov edi, FLAC__crc16_table @@ -474,7 +474,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap pop eax pop ebx pop edi - add esi, 1 ; cwords++; + add esi, byte 1 ; cwords++; mov ecx, ebx sub ecx, eax ; cbits = parameter - n; jz .break2 ; if(cbits) { /* parameter > n, i.e. if there are still bits left to read, there have to be less than 32 so they will all be in the next word */ @@ -543,7 +543,7 @@ cident FLAC__bitreader_read_rice_signed_block_asm_ia32_bswap neg edi ; edi <- -(int)(uval & 1) xor edx, edi ; edx <- (uval >> 1 ^ -(int)(uval & 1)) mov [ebx], edx ; *vals <- edx - sub dword [esp + 32], 1 ; --nvals; + sub dword [esp + 32], byte 1 ; --nvals; jz .finished ; if(nvals == 0) /* jump to finish */ xor edi, edi ; uval = 0; add dword [esp + 28], 4 ; ++vals |