diff options
| author | dkf <donal.k.fellows@manchester.ac.uk> | 2008-12-19 14:44:48 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2008-12-19 14:44:48 (GMT) |
| commit | 2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611 (patch) | |
| tree | 52b7482cbfbaacbd79b4390955254de21b6e7e65 /compat/zlib/contrib/masmx86/gvmat32c.c | |
| parent | bfa6d081abacd1d00e3a459c3d89039849818d6a (diff) | |
| download | tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.zip tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.tar.gz tcl-2cd073ec4bf5ea28c2f1d7db65f4ce95cc875611.tar.bz2 | |
Add previously omitted files so we have a complete zlib 1.2.3 distro...
Diffstat (limited to 'compat/zlib/contrib/masmx86/gvmat32c.c')
| -rw-r--r-- | compat/zlib/contrib/masmx86/gvmat32c.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/compat/zlib/contrib/masmx86/gvmat32c.c b/compat/zlib/contrib/masmx86/gvmat32c.c new file mode 100644 index 0000000..7ad2b27 --- /dev/null +++ b/compat/zlib/contrib/masmx86/gvmat32c.c @@ -0,0 +1,62 @@ +/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86
+ * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
+ * File written by Gilles Vollant, by modifiying the longest_match
+ * from Jean-loup Gailly in deflate.c
+ * it prepare all parameters and call the assembly longest_match_gvasm
+ * longest_match execute standard C code is wmask != 0x7fff
+ * (assembly code is faster with a fixed wmask)
+ *
+ * Read comment at beginning of gvmat32.asm for more information
+ */
+
+#if defined(ASMV) && (!defined(NOOLDPENTIUMCODE))
+#include "deflate.h"
+
+/* if your C compiler don't add underline before function name,
+ define ADD_UNDERLINE_ASMFUNC */
+#ifdef ADD_UNDERLINE_ASMFUNC
+#define longest_match_7fff _longest_match_7fff
+#define longest_match_686 _longest_match_686
+#define cpudetect32 _cpudetect32
+#endif
+
+
+unsigned long cpudetect32();
+
+uInt longest_match_c(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+
+uInt longest_match_7fff(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+uInt longest_match_686(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+
+static uInt iIsPPro=2;
+
+void match_init ()
+{
+ iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0;
+}
+
+uInt longest_match(
+ deflate_state *s,
+ IPos cur_match) /* current match */
+{
+ if (iIsPPro!=0)
+ return longest_match_686(s,cur_match);
+
+ if (s->w_mask != 0x7fff)
+ return longest_match_686(s,cur_match);
+
+ /* now ((s->w_mask == 0x7fff) && (iIsPPro==0)) */
+ return longest_match_7fff(s,cur_match);
+}
+
+
+#endif /* defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) */
|