Changeset 78 in xtideuniversalbios for trunk/Configurator/Src/Libraries/keys.asm

Timestamp:

Jan 5, 2011, 7:36:41 PM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to old configurator:

• Optimizations by Krille

File:

• trunk/Configurator/Src/Libraries/keys.asm (modified) (3 diffs)

trunk/Configurator/Src/Libraries/keys.asm

@@ -2 +2 @@
 ; Project name  :   Keyboard library
 ; Created date  :   17.11.2009
-; Last update   :   31.12.2009
-; Author        :   Tomi Tilli
+; Last update   :   4.1.2011
+; Author        :   Tomi Tilli,
+;               :   Krister Nordvall (optimizations)
 ; Description   :   ASM library to for keyboard related functions.      
 
@@ -311 +312 @@
 ALIGN JUMP_ALIGN
 Keys_Backspace:
-    push    dx
     test    si, si              ; At the beginning?
     jz      .Return             ;  If so, return
+    push    dx                  ; Save DX
     dec     si                  ; Decrement char counter
     dec     di                  ; Decrement offset to buffer
@@ -322 +323 @@
     mov     dl, BS              ; Back again
     PRINT_CHAR
+    pop     dx                  ; Restore DX
 ALIGN JUMP_ALIGN
 .Return:
-    pop     dx
-    ret
-%endif
+    ret
+%endif