Changeset 540 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm

Timestamp:

Apr 13, 2013, 3:40:27 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Improved interrupt handling: INT 15h AH=91h is no longer called if AH=90h was not called.

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm

@@ -140 +140 @@
 
     ; Clear Task Flag and set Interrupt In-Service Flag
-    or      BYTE [di+DPT.bFlagsHigh], FLGH_DPT_INTERRUPT_IN_SERVICE
     push    ds
-    LOAD_BDA_SEGMENT_TO ds, dx, !   ; Also zero DX
-    mov     [BDA.bHDTaskFlg], dl
+    LOAD_BDA_SEGMENT_TO ds, dx
+    mov     BYTE [BDA.bHDTaskFlg], 1    ; Will be adjusted to zero later
     pop     ds
 .DoNotSetInterruptInServiceFlag: