Changeset 28 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1h_HStatus.asm

Timestamp:

Aug 1, 2010, 5:57:24 PM (15 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

• v1.1.1 broke booting from foreign drives, it is now fixed.
• Improved error handling a bit.
• Longer DRQ and IRQ timeouts to minimize write timouts with some (bad) CF cards.
• Default boot menu drive should now be properly selected.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1h_HStatus.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1h_HStatus.asm

@@ -2 +2 @@
 ; Project name  :   IDE BIOS
 ; Created date  :   27.9.2007
-; Last update   :   12.4.2010
+; Last update   :   29.7.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Int 13h function AH=1h, Read Disk Status.
@@ -28 +28 @@
 AH1h_HandlerForReadDiskStatus:
     push    ds
+
     LOAD_BDA_SEGMENT_TO ds, di
     xor     ah, ah                  ; Zero AH
     cmp     ah, [BDA.bHDLastSt]     ; Set CF if error code is non-zero
-    mov     ah, [BDA.bHDLastSt]
+    xchg    ah, [BDA.bHDLastSt]     ; Last error to AH, zero to BDA
+
     pop     ds
     jmp     Int13h_PopDiDsAndReturn