Changeset 505 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm

Timestamp:

Feb 25, 2013, 4:23:09 PM (11 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.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH0h_HReset.asm

@@ -39 +39 @@
 AH0h_HandlerForDiskControllerReset:
     ; Reset foreign Floppy and Hard Drives (those handled by other BIOSes)
-    xor     bx, bx                                      ; Zero BH to assume no errors
-    or      bl, dl                                      ; Copy requested drive to BL
+    eMOVZX  bx, dl                                      ; Copy requested drive to BL and zero BH to assume no errors
+
     xor     ah, ah                                      ; Disk Controller Reset
     call    Int13h_CallPreviousInt13hHandler            ; Reset floppy drives only or floppy drives and foreign hard disks