[aandrejevic] 59277: [NTVDM] Use local time instead of system time for the clock. Implement the "set system date" and "set system time" DOS functions.

Author: aandrejevic
Date: Fri Jun 21 22:14:07 2013
New Revision: 59277
URL: http://svn.reactos.org/svn/reactos?rev=59277&view=rev
Log:
[NTVDM]
Use local time instead of system time for the clock.
Implement the "set system date" and "set system time" DOS 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?re…
==============================================================================
--- branches/ntvdm/subsystems/ntvdm/dos.c       [iso-8859-1] (original)
+++ branches/ntvdm/subsystems/ntvdm/dos.c       [iso-8859-1] Fri Jun 21 22:14:07 2013
@@ -570,7 +570,7 @@
         /* Get system date */
         case 0x2A:
         {
-            GetSystemTime(&SystemTime);
+            GetLocalTime(&SystemTime);
             EmulatorSetRegister(EMULATOR_REG_CX,
                                 (Ecx & 0xFFFF0000) | SystemTime.wYear);
             EmulatorSetRegister(EMULATOR_REG_DX,
@@ -581,11 +581,33 @@
                                 (Eax & 0xFFFFFF00) | SystemTime.wDayOfWeek);
             break;
         }
+
+        /* Set system date */
+        case 0x2B:
+        {
+            GetLocalTime(&SystemTime);
+            SystemTime.wYear = LOWORD(Ecx);
+            SystemTime.wMonth = HIBYTE(Edx);
+            SystemTime.wDay = LOBYTE(Edx);
+
+            if (SetLocalTime(&SystemTime))
+            {
+                /* Return success */
+                EmulatorSetRegister(EMULATOR_REG_AX, Eax & 0xFFFFFF00);
+            }
+            else
+            {
+                /* Return failure */
+                EmulatorSetRegister(EMULATOR_REG_AX, Eax | 0xFF);
+            }
+
+            break;
+        }
         /* Get system time */
         case 0x2C:
         {
-            GetSystemTime(&SystemTime);
+            GetLocalTime(&SystemTime);
             EmulatorSetRegister(EMULATOR_REG_CX,
                                 (Ecx & 0xFFFF0000)
                                 | (SystemTime.wHour << 8)
@@ -594,6 +616,29 @@
                                 (Edx & 0xFFFF0000)
                                 | (SystemTime.wSecond << 8)
                                 | (SystemTime.wMilliseconds / 10));
+            break;
+        }
+
+        /* Set system time */
+        case 0x2D:
+        {
+            GetLocalTime(&SystemTime);
+            SystemTime.wHour = HIBYTE(Ecx);
+            SystemTime.wMinute = LOBYTE(Ecx);
+            SystemTime.wSecond = HIBYTE(Edx);
+            SystemTime.wMilliseconds = LOBYTE(Edx) * 10;
+
+            if (SetLocalTime(&SystemTime))
+            {
+                /* Return success */
+                EmulatorSetRegister(EMULATOR_REG_AX, Eax & 0xFFFFFF00);
+            }
+            else
+            {
+                /* Return failure */
+                EmulatorSetRegister(EMULATOR_REG_AX, Eax | 0xFF);
+            }
+
             break;
         }