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Rev 6673 Rev 6881
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;  first call get_crc_table() to initialize the tables before allowing more than
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;  first call get_crc_table() to initialize the tables before allowing more than
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;  one thread to use crc32().
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;  one thread to use crc32().
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; Definitions for doing the crc four data bytes at a time.
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TBLS equ 1
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; Definitions for doing the crc four data bytes at a time.
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if DYNAMIC_CRC_TABLE eq 1
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if DYNAMIC_CRC_TABLE eq 1
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 - 
 
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align 4
 - 
 
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crc_table_empty dd 1
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;align 4
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align 4
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;crc_table rd TBLS*256
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crc_table_empty dd 1
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	mov eax,crc_table
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	mov eax,crc_table
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	ret
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	ret
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endp
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endp
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; =========================================================================
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; =========================================================================
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;unsigned long (crc, buf, len)
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;    unsigned long crc
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;    unsigned char *buf
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;    uInt len
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;unsigned long (unsigned long crc, unsigned char *buf, uInt len)
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align 4
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align 4
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proc calc_crc32 uses ecx esi, p1crc:dword, buf:dword, len:dword
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proc calc_crc32 uses ecx esi, p1crc:dword, buf:dword, len:dword
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	xor eax,eax
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	xor eax,eax
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	mov esi,[buf]
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	mov esi,[buf]
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zlib_debug 'calc_crc32 buf = %d',esi
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	cmp esi,Z_NULL
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	cmp esi,Z_NULL
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	je .end_f ;if (..==0) return 0
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	je .end_f ;if (..==0) return 0
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	@@:
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	@@:
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end if
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end if
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	mov eax,[p1crc]
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	mov eax,[p1crc]
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	mov ecx,[len]
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	mov ecx,[len]
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	push edx
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	call crc
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	call crc
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	pop edx
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.end_f:
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.end_f:
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	ret
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	ret
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endp
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endp
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GF2_DIM equ 32 ;dimension of GF(2) vectors (length of CRC)
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GF2_DIM equ 32 ;dimension of GF(2) vectors (length of CRC)
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; =========================================================================
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;unsigned long (mat, vec)
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;    unsigned long *mat
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; =========================================================================
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;    unsigned long vec
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;unsigned long (unsigned long *mat, unsigned long vec)
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align 4
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align 4
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;    return sum;
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;    return sum;
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	ret
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	ret
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endp
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endp
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; =========================================================================
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; =========================================================================
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;local void (square, mat)
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;    unsigned long *square
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;    unsigned long *mat
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;local void (unsigned long *square, unsigned long *mat)
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align 4
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align 4
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proc gf2_matrix_square, square:dword, mat:dword
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proc gf2_matrix_square, square:dword, mat:dword
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;    int n;
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;    int n;
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;    for (n = 0; n < GF2_DIM; n++)
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;    for (n = 0; n < GF2_DIM; n++)
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;        square[n] = gf2_matrix_times(mat, mat[n]);
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;        square[n] = gf2_matrix_times(mat, mat[n]);
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	ret
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	ret
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endp
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endp
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; =========================================================================
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;uLong (crc1, crc2, len2)
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;    uLong crc1
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;    uLong crc2
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; =========================================================================
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;    z_off64_t len2
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;uLong (uLong crc1, uLong crc2, z_off64_t len2)
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align 4
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align 4
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proc crc32_combine_, crc1:dword, crc2:dword, len2:dword
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proc crc32_combine_, crc1:dword, crc2:dword, len2:dword
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;    return crc1;
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;    return crc1;
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	ret
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	ret
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endp
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endp
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; =========================================================================
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; =========================================================================
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;uLong (crc1, crc2, len2)
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;    uLong crc1
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;    uLong crc2
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;    z_off_t len2
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;uLong (uLong crc1, uLong crc2, z_off_t len2)
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align 4
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align 4
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proc crc32_combine, crc1:dword, crc2:dword, len2:dword
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proc crc32_combine, crc1:dword, crc2:dword, len2:dword
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	stdcall crc32_combine_, [crc1], [crc2], [len2]
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	stdcall crc32_combine_, [crc1], [crc2], [len2]
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	ret
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	ret
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endp
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endp
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;uLong (crc1, crc2, len2)
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;    uLong crc1
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;    uLong crc2
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;    z_off64_t len2
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;uLong (uLong crc1, uLong crc2, z_off64_t len2)
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align 4
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align 4
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proc crc32_combine64, crc1:dword, crc2:dword, len2:dword
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proc crc32_combine64, crc1:dword, crc2:dword, len2:dword
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	stdcall crc32_combine_, [crc1], [crc2], [len2]
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	stdcall crc32_combine_, [crc1], [crc2], [len2]