Changeset 169 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH42h_ExtendedReadSectors.asm

Timestamp:

Aug 21, 2011, 4:39:58 PM (13 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Old Int 13h functions can now transfer 256 sectors per call.
• eINT 13h functions can now transfer 65535 sectors per call.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH42h_ExtendedReadSectors.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH42h_ExtendedReadSectors.asm

@@ -54 +54 @@
     mov     es, [bp+IDEPACK.intpack+INTPACK.ds] ; ES:SI to point Disk Address Packet
     cmp     BYTE [es:si+DAP.bSize], MINIMUM_DAP_SIZE
-    jb      SHORT .DapContentsNotValid
+    jb      SHORT AH42h_ReturnWithInvalidFunctionError
     cmp     WORD [es:si+DAP.wSectorCount], BYTE 0
-    jle     SHORT .DapContentsNotValid          ; Must be 1...127
+    je      SHORT AH42h_ReturnWithInvalidFunctionError
     ret
-.DapContentsNotValid:
-    jmp     AH2h_ExitInt13hSinceSectorCountInIntpackIsZero
+AH42h_ReturnWithInvalidFunctionError:
+    mov     ah, RET_HD_INVALID
+    jmp     Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH