[src/trunk]: src/sys/dev/pci Calculate lastx and lastleft outside the loops...

[mycroft <mycroft%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/07ae9e275656
branches:  trunk
changeset: 554520:07ae9e275656
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Wed Oct 29 04:40:17 2003 +0000

description:
Calculate lastx and lastleft outside the loops...

diffstat:

 sys/dev/pci/tga.c |  16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diffs (61 lines):

diff -r c899c1aac15c -r 07ae9e275656 sys/dev/pci/tga.c
--- a/sys/dev/pci/tga.c Wed Oct 29 04:38:50 2003 +0000
+++ b/sys/dev/pci/tga.c Wed Oct 29 04:40:17 2003 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tga.c,v 1.54 2003/10/27 07:07:34 chs Exp $ */
+/* $NetBSD: tga.c,v 1.55 2003/10/29 04:40:17 mycroft Exp $ */
 
 /*
  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tga.c,v 1.54 2003/10/27 07:07:34 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tga.c,v 1.55 2003/10/29 04:40:17 mycroft Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1049,7 +1049,7 @@
        int x, y, wb;
        int xstart, xend, xdir;
        int ystart, yend, ydir, yinc;
-       int xleft, lastx = 0, lastleft = 0;
+       int xleft, lastx, lastleft;
        int offset = 1 * dc->dc_tgaconf->tgac_vvbr_units;
 
        /*
@@ -1132,13 +1132,14 @@
                                TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x + 0 * 64);
                                TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x + 0 * 64);
                        }
+               }
 
-                       lastx = x; lastleft = xleft;  /* remember for CPU loop */
-               }
                TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */
                TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */
 
+               lastleft = wb & 63;
                if (lastleft) {
+                       lastx = xstart + (wb & ~63);
                        for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) {
                                /* 4 byte granularity */
                                for (x = lastx, xleft = lastleft; xleft >= 4;
@@ -1177,13 +1178,14 @@
                                TGAWALREG(dc, TGA_REG_GCSR, 0, tga_srcb + y + x - 1 * 64);
                                TGAWALREG(dc, TGA_REG_GCDR, 0, tga_dstb + y + x - 1 * 64);
                        }
+               }
 
-                       lastx = x; lastleft = xleft;  /* remember for CPU loop */
-               }
                TGAWALREG(dc, TGA_REG_GOPR, 0, 0x0003); /* op -> dst = src */
                TGAWALREG(dc, TGA_REG_GMOR, 0, 0x0000); /* Simple mode */
 
+               lastleft = wb & 63;
                if (lastleft) {
+                       lastx = xstart - (wb & ~63);
                        for (y = ystart; (ydir * y) <= (ydir * yend); y += yinc) {
                                /* 4 byte granularity */
                                for (x = lastx, xleft = lastleft; xleft >= 4;