diff options
Diffstat (limited to 'cpukit/zlib/contrib/asm686/match.S')
| -rw-r--r-- | cpukit/zlib/contrib/asm686/match.S | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/cpukit/zlib/contrib/asm686/match.S b/cpukit/zlib/contrib/asm686/match.S index 8e86c33c28..5c3e9ee367 100644 --- a/cpukit/zlib/contrib/asm686/match.S +++ b/cpukit/zlib/contrib/asm686/match.S @@ -38,26 +38,28 @@ #define deflatestate 56 /* the function arguments */ #define curmatch 60 -/* Offsets for fields in the deflate_state structure. These numbers - * are calculated from the definition of deflate_state, with the - * assumption that the compiler will dword-align the fields. (Thus, - * changing the definition of deflate_state could easily cause this - * program to crash horribly, without so much as a warning at - * compile time. Sigh.) +/* All the +zlib1222add offsets are due to the addition of fields + * in zlib in the deflate_state structure since the asm code was first written + * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)"). + * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0"). + * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8"). */ -#define dsWSize 36 -#define dsWMask 44 -#define dsWindow 48 -#define dsPrev 56 -#define dsMatchLen 88 -#define dsPrevMatch 92 -#define dsStrStart 100 -#define dsMatchStart 104 -#define dsLookahead 108 -#define dsPrevLen 112 -#define dsMaxChainLen 116 -#define dsGoodMatch 132 -#define dsNiceMatch 136 + +#define zlib1222add (8) + +#define dsWSize (36+zlib1222add) +#define dsWMask (44+zlib1222add) +#define dsWindow (48+zlib1222add) +#define dsPrev (56+zlib1222add) +#define dsMatchLen (88+zlib1222add) +#define dsPrevMatch (92+zlib1222add) +#define dsStrStart (100+zlib1222add) +#define dsMatchStart (104+zlib1222add) +#define dsLookahead (108+zlib1222add) +#define dsPrevLen (112+zlib1222add) +#define dsMaxChainLen (116+zlib1222add) +#define dsGoodMatch (132+zlib1222add) +#define dsNiceMatch (136+zlib1222add) .file "match.S" |