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/* xmsmisc.c - Misc. Support Functions for himem.
*
* xmsSysPageSize
* xmsQueryExtMem
*
* Modification History:
*
* Sudeepb 15-May-1991 Created
*/
#include "xms.h"
#include <xmssvc.h>
#include <softpc.h>
extern void UpdateKbdInt15(WORD Seg,WORD Off);
/* xmsSysPageSize - Get the System Page size.
*
*
* Entry - None
*
* Exit
* SUCCESS
* Client (AX) = Page Size in bytes
*
* FAILURE
* Not Valid
*/
VOID xmsSysPageSize (VOID)
{
SYSTEM_INFO SysInfo;
GetSystemInfo(&SysInfo);
setAX((USHORT)SysInfo.dwPageSize);
return;
}
/* xmsQueryExtMem - Get the extended memory for the vdm
*
*
* Entry - None
*
* Exit
* SUCCESS
* Client (AX) = Extended Memory in K
*
* FAILURE
* Not Valid
*/
VOID xmsQueryExtMem (VOID)
{
setAX((USHORT)(xmsMemorySize));
return;
}
/* xmsNotifyHookI15 - Informs softpc that someone is hooking I15
* - also returns the extended memory for the vdm
*
*
* Entry - Client (CS:AX) seg:off of new I15 vector
*
* Exit
* SUCCESS
* Client (CX) = Extended Memory in K
*
* FAILURE
* Not Valid
*/
VOID xmsNotifyHookI15 (VOID)
{
UpdateKbdInt15(getCS(), getAX());
setCX((USHORT)(xmsMemorySize));
return;
}
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