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Added int 15 87 - Move memory region

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1282
This commit is contained in:
Ulf Wohlers 2003-09-30 13:49:34 +00:00
parent a031928dcb
commit ffe6864021
1 changed files with 17 additions and 2 deletions
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19
src/ints/bios.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: bios.cpp,v 1.21 2003-09-17 19:17:35 qbix79 Exp $ */
/* $Id: bios.cpp,v 1.22 2003-09-30 13:49:34 finsterr Exp $ */
#include <time.h>
#include "dosbox.h"
@ -228,11 +228,26 @@ static Bitu INT15_Handler(void) {
Bit32u micro=(reg_cx<<16)|reg_dx;
CALLBACK_SCF(false);
}
case 0x87: /* Copy extended memory */
{
bool enabled = MEM_A20_Enabled();
MEM_A20_Enable(true);
Bitu bytes = reg_cx * 2;
PhysPt data = SegPhys(es)+reg_si;
PhysPt source = mem_readd(data+0x12) & 0x00FFFFFF + (mem_readb(data+0x16)<<24);
PhysPt dest = mem_readd(data+0x1A) & 0x00FFFFFF + (mem_readb(data+0x1E)<<24);
MEM_BlockCopy(dest,source,bytes);
reg_ax = 0x00;
MEM_A20_Enable(enabled);
CALLBACK_SCF(false);
break;
}
case 0x88: /* SYSTEM - GET EXTENDED MEMORY SIZE (286+) */
IO_Write(0x70,0x30);
reg_al=IO_Read(0x71);
IO_Write(0x70,0x31);
reg_ah=IO_Read(0x71);
LOG(LOG_BIOS,LOG_NORMAL)("INT15:Function 0x88 Remaining %04X kb",reg_ax);
CALLBACK_SCF(false);
break;
case 0x90: /* OS HOOK - DEVICE BUSY */
@ -253,7 +268,7 @@ static Bitu INT15_Handler(void) {
CALLBACK_SCF(true);
break;
default:
LOG(LOG_BIOS,LOG_ERROR)("INT15:Unknown call %2X",reg_ah);
LOG(LOG_BIOS,LOG_ERROR)("INT15:Unknown call %4X",reg_ax);
reg_ah=0x86;
CALLBACK_SCF(false);
}