Changeset 167 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH41h_CheckIfExtensionsPresent.asm

Timestamp:

Aug 21, 2011, 3:42:15 PM (13 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Old Int 13h transfer functions work again.
• Fixes to eINT13h (EBIOS) support.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH41h_CheckIfExtensionsPresent.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH41h_CheckIfExtensionsPresent.asm

@@ -17 +17 @@
 ;   Returns with INTPACK:
 ;       AH:     Major version of EBIOS extensions
-;       BX:     55AAh
+;       BX:     AA55h
 ;       CX:     Support bits
 ;       CF:     0 if succesfull, 1 if error
@@ -26 +26 @@
     jne     SHORT .EbiosNotSupported
 
+    mov     BYTE [bp+IDEPACK.intpack+INTPACK.ah], EBIOS_VERSION
+    mov     WORD [bp+IDEPACK.intpack+INTPACK.bx], 0AA55h
     mov     WORD [bp+IDEPACK.intpack+INTPACK.cx], ENHANCED_DRIVE_ACCESS_SUPPORT
-    mov     ah, EBIOS_VERSION
     and     BYTE [bp+IDEPACK.intpack+INTPACK.flags], ~FLG_FLAGS_CF  ; Return with CF cleared
     jmp     Int13h_ReturnFromHandlerWithoutStoringErrorCode