Changeset 538 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/Serial/SerialCommand.asm

Timestamp:

Apr 11, 2013, 8:05:27 PM (11 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/Serial/SerialCommand.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Device/Serial/SerialCommand.asm

@@ -62 +62 @@
 .readOrWrite:
         mov     [bp+IDEPACK.bFeatures],ah       ; store protocol command
+%ifdef USE_AT
+        mov     dh, [bp+IDEPACK.bSectorCount]
+%endif
         call    IdeTransfer_NormalizePointerInESSI
+%ifdef USE_AT
+        jnc     SHORT .PointerNormalizationWasSuccessfull
+        xor     cx, cx          ; Nothing transferred
+        jmp     SerialCommand_ReturnError
+.PointerNormalizationWasSuccessfull:
+%endif
 
         mov     dx, [di+DPT_SERIAL.wSerialPortAndBaud]