Changeset 224 in xtideuniversalbios

Timestamp:

Jan 26, 2012, 2:41:13 PM (13 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• EBIOS functions now work again (sector count was lost).

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/Idepack.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Device/Idepack.asm

@@ -25 +25 @@
 ;   Parameters:
 ;       AH:     IDE command to issue
-;       AL:     Number of sectors to transfer (for xfer commands)
 ;       BH:     Timeout ticks
 ;       BL:     IDE Status Register flag to wait after command
@@ -40 +39 @@
 ALIGN JUMP_ALIGN
 Idepack_ConvertDapToIdepackAndIssueCommandFromAH:
+    mov     al, [es:si+DAP.wSectorCount]
     mov     [bp+IDEPACK.bSectorCount], al
     mov     [bp+IDEPACK.bCommand], ah
@@ -58 +58 @@
 
     ; Normalize data buffer pointer to ES:SI
-    mov     ax, [es:si+DAP.dwMemoryAddress]     ; Load offset
+    mov     ax, [es:si+DAP.wOffset]
     mov     cx, ax
     eSHR_IM ax, 4                               ; Divide offset by 16
-    add     ax, [es:si+DAP.dwMemoryAddress+2]   ; Add segment
+    add     ax, [es:si+DAP.wSegment]            ; Add segment
     mov     es, ax                              ; Segment normalized
     mov     si, cx