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Added some HMA queries

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1721
This commit is contained in:
Peter Veenstra 2004-03-14 16:21:10 +00:00
parent 7deaa068a5
commit 83c1c025ab
1 changed files with 14 additions and 5 deletions
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19
src/dos/dos_misc.cpp
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@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_misc.cpp,v 1.9 2004-03-14 16:21:10 qbix79 Exp $ */
#include "dosbox.h"
#include "callback.h"
#include "mem.h"
@ -60,10 +62,17 @@ static bool DOS_MultiplexFunctions(void) {
//TODO Maybe do some idling but could screw up other systems :)
reg_al=0;
return true;
case 0x1689: /* Kernel IDLE CALL */
reg_al=0; //Likely. Please check !!!!!!!!!!!!!!!
return true;
case 0x1689: /* Kernel IDLE CALL */
case 0x168f: /* Close awareness crap */
/* Removing warning */
return true;
case 0x4a01: /* Query free hma space */
case 0x4a02: /* ALLOCATE HMA SPACE */
LOG(LOG_DOSMISC,LOG_WARN)("INT 2f:4a HMA. DOSBox reports none available.");
reg_bx=0; //number of bytes available in HMA or amount succesfully allocated
//ESDI=ffff:ffff Location of HMA/Allocated memory
SegSet16(es,0xffff);
reg_di=0xffff;
return true;
}
@ -74,12 +83,12 @@ void DOS_SetupMisc(void) {
/* Setup the dos multiplex interrupt */
first_multiplex=0;
call_int2f=CALLBACK_Allocate();
CALLBACK_Setup(call_int2f,&INT2F_Handler,CB_IRET);
CALLBACK_Setup(call_int2f,&INT2F_Handler,CB_IRET,"DOS Int 2f");
RealSetVec(0x2f,CALLBACK_RealPointer(call_int2f));
DOS_AddMultiplexHandler(DOS_MultiplexFunctions);
/* Setup the dos network interrupt */
call_int2a=CALLBACK_Allocate();
CALLBACK_Setup(call_int2a,&INT2A_Handler,CB_IRET);
RealSetVec(0x2A,CALLBACK_RealPointer(call_int2a));
RealSetVec(0x2A,CALLBACK_RealPointer(call_int2a,"DOS Int 2a"));
};