Changeset 505 in xtideuniversalbios for trunk/Assembly_Library/Src/Display

Timestamp:

Feb 25, 2013, 4:23:09 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Reverted the changes to MenuEvents.inc done in r492 since they broke the F1 key function in XTIDECFG.
• Added a tail-call optimized variant of the CALL_DISPLAY_LIBRARY macro (JMP_DISPLAY_LIBRARY).
• Put a block size limit in AH1Eh_ChangeXTCFmodeBasedOnControlRegisterInAL. I think it's needed but if not, it's easy to remove.
• Other optimizations and fixes.

Location:

trunk/Assembly_Library/Src/Display

Files:

• DisplayFormatCompressed.asm (modified) (1 diff)
• DisplayPrint.asm (modified) (3 diffs)

trunk/Assembly_Library/Src/Display/DisplayFormatCompressed.asm

@@ -139 +139 @@
 
 .PrintDigit:
-    add     al, 90h                     ; Convert binary digit in AL to ASCII hex digit (0 - 9 or A - F)
-    daa
-    adc     al, 40h
-    daa
+    cmp     al, 10                      ; Convert binary digit in AL to ASCII hex digit ('0'-'9' or 'A'-'F')
+    sbb     al, 69h
+    das
 
     call    DisplayPrint_CharacterFromAL

trunk/Assembly_Library/Src/Display/DisplayPrint.asm

@@ -306 +306 @@
 %endif
 
-%ifndef EXCLUDE             
+%ifndef EXCLUDE
 ;--------------------------------------------------------------------
 ; DisplayPrint_RepeatCharacterFromALwithCountInCX
@@ -397 +397 @@
 ;   Parameters:
 ;       AL:     Character to display
-;               Zero value is ignored (no characer is printed)
+;               Zero value is ignored (no character is printed)
 ;       DS:     BDA segment (zero)
 ;       ES:DI:  Ptr to cursor location in video RAM
@@ -407 +407 @@
 ALIGN DISPLAY_JUMP_ALIGN
 DisplayPrint_CharacterFromAL:
-    test    al,al
+    test    al, al
     jz      DisplayPrint_Ret