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make rom out of ems pageframe segment when BOOTing a disk

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3118
This commit is contained in:
Sebastian Strohhäcker 2008-03-09 20:32:23 +00:00
parent cf48084cea
commit cd68884361
2 changed files with 13 additions and 4 deletions
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6
src/dos/dos_programs.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2007 The DOSBox Team
* Copyright (C) 2002-2008 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: dos_programs.cpp,v 1.83 2008-03-02 11:13:46 qbix79 Exp $ */
/* $Id: dos_programs.cpp,v 1.84 2008-03-09 20:32:22 c2woody Exp $ */
#include "dosbox.h"
#include <stdlib.h>
@ -746,6 +746,8 @@ public:
}
} else {
disable_umb_ems_xms();
void RemoveEMSPageFrame(void);
RemoveEMSPageFrame();
WriteOut(MSG_Get("PROGRAM_BOOT_BOOT"), drive);
for(i=0;i<512;i++) real_writeb(0, 0x7c00 + i, bootarea.rawdata[i]);

11
src/hardware/memory.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2007 The DOSBox Team
* Copyright (C) 2002-2008 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: memory.cpp,v 1.53 2007-12-10 22:11:13 c2woody Exp $ */
/* $Id: memory.cpp,v 1.54 2008-03-09 20:32:23 c2woody Exp $ */
#include "dosbox.h"
#include "mem.h"
@ -519,6 +519,13 @@ static Bitu read_p92(Bitu port,Bitu iolen) {
return memory.a20.controlport | (memory.a20.enabled ? 0x02 : 0);
}
void RemoveEMSPageFrame(void) {
/* Setup rom at 0xe0000-0xf0000 */
for (Bitu ct=0xe0;ct<0xf0;ct++) {
memory.phandlers[ct] = &rom_page_handler;
}
}
void PreparePCJRCartRom(void) {
/* Setup rom at 0xd0000-0xe0000 */
for (Bitu ct=0xd0;ct<0xe0;ct++) {