Changeset 538 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/JrIdeTransfer.asm

Timestamp:

Apr 11, 2013, 8:05:27 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Segment overflow is now checked when transfer buffer pointer is normalized (AT builds only).

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/IDE/JrIdeTransfer.asm (modified) (2 diffs)

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

@@ -53 +53 @@
     xor     ax, ax
     mov     [bp+MEMPIOVARS.bSectorsDone], al
-    mov     al, [bp+IDEPACK.bSectorCount]
-    mov     [bp+MEMPIOVARS.bSectorsLeft], al
+    mov     dh, [bp+IDEPACK.bSectorCount]
+    mov     [bp+MEMPIOVARS.bSectorsLeft], dh
     mov     al, [di+DPT_ATA.bBlockSize]
     mov     [bp+MEMPIOVARS.wSectorsInBlock], ax
@@ -62 +62 @@
     ; Normalize pointer
     call    IdeTransfer_NormalizePointerInESSI
+%ifdef USE_AT
+    jc      SHORT ReturnWithMemoryIOtransferErrorInAH
+%endif
 
     ; Get far pointer to Sector Access Window