Changeset 474 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1Eh_XTCF.asm

Timestamp:

Oct 11, 2012, 5:30:15 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Drive detection now displays autodetected XT-CF port and skips slave drives for XT-CF.
• AH=1Eh no longer tries to disable 8-bit mode for memory mapped and DMA transfer modes.
• Preparations to implement DMA.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1Eh_XTCF.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH1Eh_XTCF.asm

@@ -111 +111 @@
     ; Set DMA Mode
     mov     BYTE [di+DPT_ATA.bDevice], DEVICE_8BIT_XTCF_DMA
-    jmp     AH23h_Disable8bitPioMode
+    mov     al, [di+DPT_ATA.bBlockSize]
+    jmp     AH24h_SetBlockSize  ; AH=24h limits block size if necessary
 
 .SetMemoryMappedMode:
     mov     BYTE [di+DPT_ATA.bDevice], DEVICE_8BIT_XTCF_MEMMAP
-    jmp     AH23h_Disable8bitPioMode
+    jmp     SHORT .Enable8bitPioMode
 
 .Set8bitPioMode:
     mov     BYTE [di+DPT_ATA.bDevice], DEVICE_8BIT_XTCF_PIO8
+.Enable8bitPioMode: 
     jmp     AH23h_Enable8bitPioMode