mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-04 06:11:55 +03:00
63 lines
2.6 KiB
Plaintext
63 lines
2.6 KiB
Plaintext
Date: Mon, 28 Aug 1995 23:53:23 CET +0100
|
|
From: "Christian Spieler, Institut fuer Kernphysik, Schlossgartenstr. 9,
|
|
D-64289 Darmstadt" <SPIELER@linac.ikp.physik.th-darmstadt.de>
|
|
Subject: More MSC 5.1 related patches for UnZip 5.20f2
|
|
|
|
|
|
D) I want to suggest two small patches to allow the use of
|
|
full optimization (including loop optimization) when compiling UnZip
|
|
with MSC (5.1, and probably newer). There are only two small pieces
|
|
of code (containing to deeply nested loops) that break MSC 5.1's loop
|
|
optimization. I have guarded these loops with "#pragma loop_opt (off)"
|
|
to allow loop optimization for the rest of the code. Here are the patches:
|
|
|
|
===================== cut here ========================
|
|
diff -c ./inflate.c ./modif/inflate.c
|
|
*** ./inflate.c Thu Oct 05 14:57:38 1995
|
|
--- ./modif/inflate.c Thu Oct 05 14:58:24 1995
|
|
***************
|
|
*** 1162,1173 ****
|
|
--- 1162,1179 ----
|
|
{ /* too few codes for k-w bit table */
|
|
f -= a + 1; /* deduct codes from patterns left */
|
|
xp = c + k;
|
|
+ #if defined (MSC)
|
|
+ #pragma loop_opt (off)
|
|
+ #endif /* MS C compilers */
|
|
while (++j < z) /* try smaller tables up to z bits */
|
|
{
|
|
if ((f <<= 1) <= *++xp)
|
|
break; /* enough codes to use up j bits */
|
|
f -= *xp; /* else deduct codes from patterns */
|
|
}
|
|
+ #if defined (MSC)
|
|
+ #pragma loop_opt ()
|
|
+ #endif /* MS C compilers */
|
|
}
|
|
if ((unsigned)w + j > el && (unsigned)w < el)
|
|
j = el - w; /* make EOB code end at table */
|
|
diff -c ./zipinfo.c ./modif/zipinfo.c
|
|
*** ./zipinfo.c Thu Oct 05 14:51:58 1995
|
|
--- ./modif/zipinfo.c Thu Oct 05 14:52:42 1995
|
|
***************
|
|
*** 1134,1145 ****
|
|
--- 1134,1151 ----
|
|
workspace[10] = 'E';
|
|
|
|
p = attribs;
|
|
+ #if defined (MSC) && (!defined (_MSC_VER) || _MSC_VER < 600)
|
|
+ #pragma loop_opt (off)
|
|
+ #endif /* MS C, Version < 6.00 */
|
|
for (k = j = 0; j < 3; ++j) { /* groups of permissions */
|
|
for (i = 0; i < 4; ++i, ++k) /* perms within a group */
|
|
if (workspace[k])
|
|
*p++ = workspace[k];
|
|
*p++ = ','; /* group separator */
|
|
}
|
|
+ #if defined (MSC) && (!defined (_MSC_VER) || _MSC_VER < 600)
|
|
+ #pragma loop_opt ()
|
|
+ #endif /* MS C, Version < 6.00 */
|
|
*--p = ' '; /* overwrite last comma */
|
|
if ((p - attribs) < 12)
|
|
sprintf(&attribs[12], "%d.%d", hostver/10, hostver%10);
|