Changeset 249 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH2h_HRead.asm

Timestamp:

Feb 16, 2012, 1:56:36 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Number of successfully transferred sectors is now returned by all transfer functions (instead of requested sector count).
• Added INT 19h handler for proper reboot.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH2h_HRead.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH2h_HRead.asm

@@ -23 +23 @@
 ;   Returns with INTPACK:
 ;       AH:     Int 13h/40h floppy return status
-;       AL:     Burst error length if AH returns 11h, undefined otherwise
+;       AL:     Burst error length if AH returns 11h (we never return error code 11h)
+;               Number of sectors actually read (only valid if CF set for someBIOSes)
 ;       CF:     0 if successfull, 1 if error
 ;--------------------------------------------------------------------
@@ -33 +34 @@
     mov     bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_DRQ, FLG_STATUS_DRQ)
 %ifdef USE_186
-    push    Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
+    push    Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL
     jmp     Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
 %else
     call    Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
-    jmp     Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
+    jmp     Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAHandTransferredSectorsFromCL
 %endif