[aandrejevic] 67352: [NTVDM] Implement the XMS functions AH = 03h and AH = 04h (global enable/disable A20). Make the GetHandleRecord function in the EMS driver inline. CORE-8277 #comment Please ret...

Author: aandrejevic
Date: Wed Apr 22 19:56:50 2015
New Revision: 67352

URL: http://svn.reactos.org/svn/reactos?rev=67352&view=rev
Log:
[NTVDM]
Implement the XMS functions AH = 03h and AH = 04h (global enable/disable A20).
Make the GetHandleRecord function in the EMS driver inline.
CORE-8277 #comment Please retest.

Modified:
    trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/emsdrv.c
    trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/himem.c

Modified: trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/emsdrv.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/dos/d...
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/emsdrv.c	[iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/emsdrv.c	[iso-8859-1] Wed Apr 22 19:56:50 2015
@@ -35,7 +35,7 @@

/* PRIVATE FUNCTIONS **********************************************************/

-static PEMS_HANDLE GetHandleRecord(USHORT Handle)
+static inline PEMS_HANDLE GetHandleRecord(USHORT Handle)
 {
     if (Handle >= EMS_MAX_HANDLES) return NULL;
     return &HandleTable[Handle];

Modified: trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/himem.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/dos/d...
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/himem.c	[iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/himem.c	[iso-8859-1] Wed Apr 22 19:56:50 2015
@@ -164,6 +164,20 @@
             break;
         }

+        /* Global Enable A20 */
+        case 0x03:
+        {
+            EmulatorSetA20(TRUE);
+            break;
+        }
+
+        /* Global Disable A20 */
+        case 0x04:
+        {
+            EmulatorSetA20(FALSE);
+            break;
+        }
+
         /* Query Free Extended Memory */
         case 0x08:
         {