Changeset 77 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Libraries/menu

Timestamp:

Jan 4, 2011, 10:53:15 PM (14 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Minor size optimizations plus a bug fix in print.asm in Print_IntSW (DI was left hanging on the stack if the parameter in AX was positive). Also a very minor speed optimization in keys.asm in Keys_Backspace.

File:

• trunk/XTIDE_Universal_BIOS/Src/Libraries/menu/menudraw.asm (modified) (6 diffs)

trunk/XTIDE_Universal_BIOS/Src/Libraries/menu/menudraw.asm

@@ -2 +2 @@
 ; Project name  :   Menu library
 ; Created date  :   9.11.2009
-; Last update   :   25.5.2010
-; Author        :   Tomi Tilli
+; Last update   :   4.1.2011
+; Author        :   Tomi Tilli,
+;               :   Krister Nordvall (optimizations)
 ; Description   :   ASM library to menu system.
 ;                   Contains menu drawing functions.
@@ -41 +42 @@
     mov     al, CNT_SCRN_ROW            ; Load row count
     mul     ah                          ; AX=Column count * row count
-    mov     cx, ax                      ; Copy char count to CX
+    mov     cx, 0920h                   ; Write Char and attr, space char
     mov     bx, ATTR_MDA_NORMAL         ; Page zero, normal attribute
-    mov     ax, 0920h                   ; Write Char and attr, space char
+    xchg    cx, ax                      ; CX=Char count AX=Space char and attr
     int     10h
     ret
@@ -354 +355 @@
 ALIGN JUMP_ALIGN
 MenuDraw_TopBorder:
-    mov     bh, B_TL
-    mov     bl, B_H
+    mov     bx, (B_TL << 8) + B_H
     mov     dh, B_TR
     jmp     SHORT MenuDraw_BorderChars
@@ -361 +361 @@
 ALIGN JUMP_ALIGN
 MenuDraw_StringBorder:
-    mov     bh, B_V
-    mov     bl, ' '
+    mov     bx, (B_V << 8) + ' '
     mov     dh, B_V
     jmp     SHORT MenuDraw_BorderChars
@@ -369 +368 @@
 MenuDraw_ScrollBorder:
     call    MenuDraw_GetScrollChar          ; Load scroll char to DH
-    mov     bh, B_V
-    mov     bl, ' '
+    mov     bx, (B_V << 8) + ' '
     jmp     SHORT MenuDraw_BorderChars
 
 ALIGN JUMP_ALIGN
 MenuDraw_MiddleBorder:
-    mov     bh, BVL_THR
-    mov     bl, T_H
+    mov     bx, (BVL_THR << 8) + T_H
     mov     dh, THL_BVR
 
@@ -393 +390 @@
 ALIGN JUMP_ALIGN
 MenuDraw_BottomBorder:
-    mov     bh, B_LL
-    mov     bl, B_H
+    mov     bx, (B_LL << 8) + B_H
     mov     dh, B_LR
     cmp     WORD [bp+MENUVARS.wTimeInit], 0 ; Timeout enabled?