Changeset 48 in xtideuniversalbios for trunk/Assembly_Library/Inc/Display.inc

Timestamp:

Oct 8, 2010, 3:44:05 PM (15 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to Assembly Library:
Added functions to clear Menu Title and Information areas.
Implemented automatic line change when writing Menu Title and Information areas.
CGA snow related functions have been moved to CgaSnow.asm.
Keyboard input functions no longer produce beep for backspace.

File:

• trunk/Assembly_Library/Inc/Display.inc (modified) (4 diffs)

trunk/Assembly_Library/Inc/Display.inc

@@ -2 +2 @@
 ; Project name  :   AssemblyLibrary
 ; Created date  :   25.6.2010
-; Last update   :   28.9.2010
+; Last update   :   6.10.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Defines for display library.
@@ -26 +26 @@
     %elifidn %1, PopDisplayContext
         call    DisplayContext_Pop
+    %elifidn %1, PrepareOffScreenBufferInESBXtoESDI
+        call    DisplayContext_PrepareOffScreenBufferInESBXtoESDI
     %else
         mov     di, DISPLAY_LIB.%1
@@ -37 +39 @@
     .PushDisplayContext:
     .PopDisplayContext:
+    .PrepareOffScreenBufferInESBXtoESDI:
     .InitializeDisplayContext                       resb    2
 
@@ -181 +184 @@
 COLOR_TEXT_SEGMENT          EQU     0B800h  ; Text modes 0...3 (CGA+)
 MONO_TEXT_SEGMENT           EQU     0B000h  ; Text mode 7 (MDA, Hercules)
+
+OFFSET_TO_CGA_STATUS_REGISTER   EQU     6   ; Base port 3D4h + 6 = 3DAh
+CGA_STATUS_REGISTER             EQU     3DAh