Changeset 181 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrintCfg.asm

Timestamp:

Nov 13, 2011, 3:38:40 PM (13 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes to all parts of the project:

• Size optimizations.
• Added a define (EXCLUDE_FROM_XTIDECFG) to exclude unused library code from XTIDECFG.
• Tried to minimize time spent with interrupts disabled.
• Some minor attempts to improve speed (reordering instructions etc).
• Tried to improve readability, did some cleanup and fixed some errors in comments.

File:

• trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrintCfg.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuPrintCfg.asm

@@ -85 +85 @@
 ;       AX, DX
 ;--------------------------------------------------------------------
-PushBusType:
+;PushBusType:
+    cwd                 ; Clear DX using sign extension
     xchg    ax, bx      ; Store BX to AX
     eMOVZX  bx, BYTE [cs:si+IDEVARS.bDevice]
     mov     bx, [cs:bx+rgwBusTypeValues]    ; Char to BL, Int to BH
-    eMOVZX  dx, bh
+    mov     dl, bh
     push    bx          ; Push character
     push    dx          ; Push 1, 8, 16 or 32