[aandrejevic] 59340: [NTVDM] Implement the "Get Interrupt Vector" and "Set Interrupt Vector" DOS API functions.

Author: aandrejevic
Date: Tue Jun 25 17:56:05 2013
New Revision: 59340

URL: http://svn.reactos.org/svn/reactos?rev=59340&view=rev
Log:
[NTVDM]
Implement the "Get Interrupt Vector" and "Set Interrupt Vector" DOS API functions.

Modified:
    branches/ntvdm/subsystems/ntvdm/dos.c

Modified: branches/ntvdm/subsystems/ntvdm/dos.c
URL: http://svn.reactos.org/svn/reactos/branches/ntvdm/subsystems/ntvdm/dos.c?rev...
==============================================================================
--- branches/ntvdm/subsystems/ntvdm/dos.c	[iso-8859-1] (original)
+++ branches/ntvdm/subsystems/ntvdm/dos.c	[iso-8859-1] Tue Jun 25 17:56:05 2013
@@ -635,6 +635,17 @@
             break;
         }

+        /* Set Interrupt Vector */
+        case 0x25:
+        {
+            DWORD FarPointer = MAKELONG(LOWORD(Edx), DataSegment);
+
+            /* Write the new far pointer to the IDT */
+            ((PDWORD)BaseAddress)[LOBYTE(Eax)] = FarPointer;
+
+            break;
+        }
+
         /* Get system date */
         case 0x2A:
         {
@@ -710,6 +721,18 @@
             break;
         }

+        /* Get Interrupt Vector */
+        case 0x35:
+        {
+            DWORD FarPointer = ((PDWORD)BaseAddress)[LOBYTE(Eax)];
+
+            /* Read the address from the IDT into ES:BX */
+            EmulatorSetRegister(EMULATOR_REG_ES, HIWORD(FarPointer));
+            EmulatorSetRegister(EMULATOR_REG_BX, LOWORD(FarPointer));
+
+            break;
+        }
+
         /* Create Directory */
         case 0x39:
         {