[ros-diffs] [hbelusca] 62381: [NTVDM]: Fix INT 10h, AH=8h,9h,Ah ; remove AH=12h because it corresponds to video "alternate function select" (and not scroll window). Stubplement INT 10h, AH=13h.

Author: hbelusca
Date: Sun Mar  2 18:41:22 2014
New Revision: 62381

URL: http://svn.reactos.org/svn/reactos?rev=62381&view=rev
Log:
[NTVDM]: Fix INT 10h, AH=8h,9h,Ah ; remove AH=12h because it corresponds to video "alternate function select" (and not scroll window). Stubplement INT 10h, AH=13h.

Modified:
    branches/ntvdm/subsystems/ntvdm/bios/bios32/vidbios32.c

Modified: branches/ntvdm/subsystems/ntvdm/bios/bios32/vidbios32.c
URL: http://svn.reactos.org/svn/reactos/branches/ntvdm/subsystems/ntvdm/bios/bios...
==============================================================================
--- branches/ntvdm/subsystems/ntvdm/bios/bios32/vidbios32.c	[iso-8859-1] (original)
+++ branches/ntvdm/subsystems/ntvdm/bios/bios32/vidbios32.c	[iso-8859-1] Sun Mar  2 18:41:22 2014
@@ -1152,7 +1152,7 @@
             break;
         }

-        /* Get Cursor Position */
+        /* Get Cursor Position and Shape */
         case 0x03:
         {
             /* Make sure the selected video page exists */
@@ -1191,22 +1191,20 @@

/* Call the internal function */
             VidBiosScrollWindow((getAH() == 0x06) ? SCROLL_DIRECTION_UP
-                                               : SCROLL_DIRECTION_DOWN,
-                             getAL(),
-                             Rectangle,
-                             Bda->VideoPage,
-                             getBH());
-
-            break;
-        }
-
-        /* Read/Write Character From Cursor Position */
+                                                  : SCROLL_DIRECTION_DOWN,
+                                getAL(),
+                                Rectangle,
+                                Bda->VideoPage,
+                                getBH());
+
+            break;
+        }
+
+        /* Read Character and Attribute at Cursor Position */
         case 0x08:
-        case 0x09:
-        case 0x0A:
-        {
-            WORD CharacterData = MAKEWORD(getAL(), getBL());
-            BYTE Page = getBH();
+        {
+            WORD  CharacterData;
+            BYTE  Page = getBH();
             DWORD Offset;

/* Check if the page exists */
@@ -1214,27 +1212,47 @@

/* Find the offset of the character */
             Offset = Page * Bda->VideoPageSize +
-                     (HIBYTE(Bda->CursorPosition[Page]) * Bda->ScreenColumns +
+                     (HIBYTE(Bda->CursorPosition[Page])  * Bda->ScreenColumns +
                       LOBYTE(Bda->CursorPosition[Page])) * 2;

-            if (getAH() == 0x08)
+            /* Read from the video memory */
+            EmulatorReadMemory(&EmulatorContext,
+                               TO_LINEAR(TEXT_VIDEO_SEG, Offset),
+                               (LPVOID)&CharacterData,
+                               sizeof(WORD));
+
+            /* Return the character data in AX */
+            setAX(CharacterData);
+
+            break;
+        }
+
+        /* Write Character and Attribute at Cursor Position */
+        case 0x09:
+        /* Write Character only (PCjr: + Attribute) at Cursor Position */
+        case 0x0A:
+        {
+            WORD  CharacterData = MAKEWORD(getAL(), getBL());
+            BYTE  Page = getBH();
+            DWORD Offset, Counter = getCX();
+
+            /* Check if the page exists */
+            if (Page >= BIOS_MAX_PAGES) break;
+
+            /* Find the offset of the character */
+            Offset = Page * Bda->VideoPageSize +
+                     (HIBYTE(Bda->CursorPosition[Page])  * Bda->ScreenColumns +
+                      LOBYTE(Bda->CursorPosition[Page])) * 2;
+
+            /* Write to video memory a certain number of times */
+            while (Counter > 0)
             {
-                /* Read from the video memory */
-                EmulatorReadMemory(&EmulatorContext,
-                                   TO_LINEAR(TEXT_VIDEO_SEG, Offset),
-                                   (LPVOID)&CharacterData,
-                                   sizeof(WORD));
-
-                /* Return the character in AX */
-                setAX(CharacterData);
-            }
-            else
-            {
-                /* Write to video memory */
                 EmulatorWriteMemory(&EmulatorContext,
                                     TO_LINEAR(TEXT_VIDEO_SEG, Offset),
                                     (LPVOID)&CharacterData,
-                                    (getBH() == 0x09) ? sizeof(WORD) : sizeof(BYTE));
+                                    (getAH() == 0x09) ? sizeof(WORD) : sizeof(BYTE));
+                Offset += 2;
+                Counter--;
             }

break;
@@ -1460,18 +1478,18 @@
             break;
         }

-        /* Scroll Window */
+        /* Alternate Function Select */
         case 0x12:
         {
-            SMALL_RECT Rectangle = { getCL(), getCH(), getDL(), getDH() };
-
-            /* Call the internal function */
-            VidBiosScrollWindow(getBL(),
-                             getAL(),
-                             Rectangle,
-                             Bda->VideoPage,
-                             DEFAULT_ATTRIBUTE);
-
+            DPRINT1("BIOS Function INT 12h (Alternate Function Select), BX = 0x%04X NOT IMPLEMENTED\n",
+                    getBX());
+            break;
+        }
+
+        /* Write String */
+        case 0x13:
+        {
+            DPRINT1("BIOS Function INT 13h (Write String) is UNIMPLEMENTED\n");
             break;
         }