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/*
* xmsdisp.c - SVC dispatch module for XMS
*
* Modification History:
*
* Sudeepb 15-May-1991 Created
*
* williamh 25-Sept-1992 Added UMB support
*/
#include <xms.h>
#include <xmsexp.h>
#include <stdio.h>
#include <softpc.h>
#include <xmssvc.h>
PFNSVC apfnXMSSvc [] = {
xmsA20, // XMS_A20
xmsMoveBlock, // XMS_MOVEBLOCK
xmsAllocBlock, // XMS_ALLOCBLOCK
xmsFreeBlock, // XMS_FREEBLOCK
xmsSysPageSize, // XMS_SYSTEMPAGESIZE
xmsQueryExtMem, // XMS_EXTMEM
xmsInitUMB, // XMS_INITUMB
xmsRequestUMB, // XMS_REQUESTUMB
xmsReleaseUMB, // XMS_RELEASEUMB
xmsNotifyHookI15, // XMS_NOTIFYHOOKI15
xmsQueryFreeExtMem, // XMS_QUERYEXTMEM
xmsReallocBlock // XMS_REALLOCBLOCK
};
/* XMSDispatch - Dispatch SVC call to right handler.
*
* Entry - iSvc (SVC byte following SVCop)
*
* Exit - None
*
* Note - Some mechanism has to be worked out to let the emulator know
* about DOSKRNL code segment and size. Using these it will figure
* out whether SVCop (hlt for the moment) has to be passed to
* DEM or to be handled as normal invalid opcode.
*/
BOOL XMSDispatch (ULONG iSvc)
{
#if DBG
if (iSvc >= XMS_LASTSVC){
printf("XMS:Unimplemented SVC index %x\n",iSvc);
setCF(1);
return FALSE;
}
#endif
(apfnXMSSvc [iSvc])();
return TRUE;
}
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