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| author | nate <nate@FreeBSD.org> | 1993-06-19 00:22:46 +0000 |
|---|---|---|
| committer | nate <nate@FreeBSD.org> | 1993-06-19 00:22:46 +0000 |
| commit | 27b6ff7b29546d2f06b4766676709c0830d69643 (patch) | |
| tree | 511b90cc97cd9ed9430ece39d5e20942cadef5fc /gnu/usr.bin/gzip/match.S | |
| parent | 978b670e3cdaa86f5f989043fb3c7585f7d0855d (diff) | |
| download | FreeBSD-src-27b6ff7b29546d2f06b4766676709c0830d69643.zip FreeBSD-src-27b6ff7b29546d2f06b4766676709c0830d69643.tar.gz | |
Updated gzip from 1.1 to 1.2.2
Diffstat (limited to 'gnu/usr.bin/gzip/match.S')
| -rw-r--r-- | gnu/usr.bin/gzip/match.S | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/gnu/usr.bin/gzip/match.S b/gnu/usr.bin/gzip/match.S index cd3176b..4a3d681 100644 --- a/gnu/usr.bin/gzip/match.S +++ b/gnu/usr.bin/gzip/match.S @@ -9,7 +9,7 @@ * Kristoffer Eriksson <ske@pkmab.se> */ -/* $Id: match.S,v 0.13 1993/05/24 12:03:03 jloup Exp $ */ +/* $Id: match.S,v 0.14 1993/06/11 18:33:24 jloup Exp $ */ /* Preprocess with -DNO_UNDERLINE if your C compiler does not prefix * external symbols with an underline character '_'. @@ -44,11 +44,11 @@ .file "match.S" -#define MAX_MATCH 258 -#define MAX_MATCH2 128 /* MAX_MATCH/2-1 */ +#define MAX_MATCH 258 +#define MAX_MATCH2 $128 /* MAX_MATCH/2-1 */ #define MIN_MATCH 3 -#define WSIZE 32768 -#define MAX_DIST WSIZE - MAX_MATCH - MIN_MATCH - 1 +#define WSIZE $32768 +#define MAX_DIST WSIZE - MAX_MATCH - MIN_MATCH - 1 .globl _match_init .globl _longest_match @@ -87,11 +87,11 @@ _longest_match: /* int longest_match(cur_match) */ mov _max_chain_length,%ebp /* chain_length = max_chain_length */ mov _strstart,%edi mov %edi,%edx - sub $ MAX_DIST,%edx /* limit = strstart-MAX_DIST */ + sub MAX_DIST,%edx /* limit = strstart-MAX_DIST */ jae limit_ok sub %edx,%edx /* limit = NIL */ limit_ok: - add $ _window+2,%edi /* edi = offset(window+strstart+2) */ + add $2+_window,%edi /* edi = offset(window+strstart+2) */ mov _prev_length,%ebx /* best_len = prev_length */ movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */ movw -2(%edi),%cx /* cx = scan[0..1] */ @@ -110,7 +110,7 @@ short_loop: * at this point, di == scan+2, si == cur_match, * ax = scan[best_len-1..best_len] and cx = scan[0..1] */ - and $ WSIZE-1, %esi + and WSIZE-1, %esi movw _prev(%esi,%esi),%si /* cur_match = prev[cur_match] */ /* top word of esi is still 0 */ cmp %edx,%esi /* cur_match <= limit ? */ @@ -125,7 +125,7 @@ do_scan: lea _window+2(%esi),%esi /* si = match */ mov %edi,%eax /* ax = scan+2 */ - mov $ MAX_MATCH2,%ecx /* scan for at most MAX_MATCH bytes */ + mov MAX_MATCH2,%ecx /* scan for at most MAX_MATCH bytes */ rep; cmpsw /* loop until mismatch */ je maxmatch /* match of length MAX_MATCH? */ mismatch: @@ -134,7 +134,7 @@ mismatch: xchg %edi,%eax /* edi = scan+2, eax = end of scan */ sub %edi,%eax /* eax = len */ sub %eax,%esi /* esi = cur_match + 2 + offset(window) */ - sub $ _window+2,%esi /* esi = cur_match */ + sub $2+_window,%esi /* esi = cur_match */ subb $1,%cl /* set carry if cl == 0 (cannot use DEC) */ adc $0,%eax /* eax = carry ? len+1 : len */ cmp %ebx,%eax /* len > best_len ? */ |
