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fix linecompare update in certain cases (thanks to ripsaw for pointing this out, fixes inner worlds regression)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3323
This commit is contained in:
Sebastian Strohhäcker 2009-03-18 18:08:16 +00:00
parent a590bad2d9
commit 8288b0cd34
1 changed files with 8 additions and 5 deletions
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13
src/hardware/vga_crtc.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2008 The DOSBox Team
* Copyright (C) 2002-2009 The DOSBox Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: vga_crtc.cpp,v 1.33 2008-06-03 18:35:32 c2woody Exp $ */
/* $Id: vga_crtc.cpp,v 1.34 2009-03-18 18:08:16 c2woody Exp $ */
#include <stdlib.h>
#include "dosbox.h"
@ -141,19 +141,22 @@ void vga_write_p3d5(Bitu port,Bitu val,Bitu iolen) {
if (IS_VGA_ARCH)
vga.config.line_compare=(vga.config.line_compare & 0x5ff)|(val&0x40)<<3;
if(IS_VGA_ARCH && (svgaCard==SVGA_None) && (vga.mode==M_EGA || vga.mode==M_VGA)) {
if (IS_VGA_ARCH && (svgaCard==SVGA_None) && (vga.mode==M_EGA || vga.mode==M_VGA)) {
// in vgaonly mode we take special care of line repeats (excluding CGA modes)
if ((vga.crtc.maximum_scan_line ^ val) & 0x20) {
crtc(maximum_scan_line)=val;
VGA_StartResize();
} else {
crtc(maximum_scan_line)=val;
}
crtc(maximum_scan_line)=val;
vga.draw.address_line_total = (val &0x1F) + 1;
if(val&0x80) vga.draw.address_line_total*=2;
if (val&0x80) vga.draw.address_line_total*=2;
} else {
if ((vga.crtc.maximum_scan_line ^ val) & 0xbf) {
crtc(maximum_scan_line)=val;
VGA_StartResize();
} else {
crtc(maximum_scan_line)=val;
}
}
/*