Changeset 558 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/CompatibleDPT.asm

Timestamp:

Jun 23, 2013, 3:52:31 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Building the BIOS Drive Information Tool now works again.
• Moved all XT-CF related code to MODULE_8BIT_IDE_ADVANCED. I don't see how an XT-CF card could work without *_ADVANCED anyway but if I'm wrong, feel free to undo this. Note! The autodetection code in XTIDECFG has NOT been changed to reflect this (still relies on MODULE_8BIT_IDE).
• Optimizations and fixes in general.

File:

• trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/CompatibleDPT.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/CompatibleDPT.asm

@@ -139 +139 @@
 
     mov     al, [si+DPT.bLchsSectorsPerTrack]
-%ifdef USE_186
+%ifndef USE_186
+    call    StoswALandChecksumFromDL    ; Bytes 14 (Logical sectors per track) and 15 (Checksum)
+    jmp     SHORT FillStandardDPTtoESDIfromDPTinDSSI.RestoreOffsetsAndReturn
+%else
     push    FillStandardDPTtoESDIfromDPTinDSSI.RestoreOffsetsAndReturn
-    jmp     StoswALandChecksumFromDL    ; Bytes 14 (Logical sectors per track) and 15 (Checksum)
-%else
-    call    StoswALandChecksumFromDL
-    jmp     SHORT FillStandardDPTtoESDIfromDPTinDSSI.RestoreOffsetsAndReturn
-%endif
+    ; Fall to StoswALandChecksumFromDL
+%endif
+
+
+;--------------------------------------------------------------------
+; StoswALandChecksumFromDL
+;   Parameters:
+;       AL:     Last byte to store before checksum byte
+;       DL:     Sum of bytes so far
+;       ES:DI:  Ptr to where to store AL and Checksum byte
+;   Returns:
+;       DL:     Sum of bytes so far
+;       DI:     Incremented by 2
+;   Corrupts registers:
+;       Nothing
+;--------------------------------------------------------------------
+StoswALandChecksumFromDL:
+    mov     ah, al
+    add     ah, dl
+    neg     ah
+    stosw
+    ret
 
 
@@ -226 +246 @@
 %ifdef MODULE_ADVANCED_ATA
     or      ah, [si+DPT_ADVANCED_ATA.bPioMode]
-    jz      SHORT .NoDotSetFastPioFlag
+    jz      SHORT .DoNotSetFastPioFlag
     cmp     WORD [si+DPT_ADVANCED_ATA.wControllerID], BYTE 0
-    je      SHORT .NoDotSetFastPioFlag
+    je      SHORT .DoNotSetFastPioFlag
     inc     cx      ; FLG_FAST_PIO_ENABLED
-.NoDotSetFastPioFlag:
+.DoNotSetFastPioFlag:
 %endif
     call    StoswThenAddALandAHtoDL         ; Bytes 8 and 9
@@ -276 +296 @@
     ret
 
-
-;--------------------------------------------------------------------
-; StoswALandChecksumFromDL
-;   Parameters:
-;       AL:     Last byte to store before checksum byte
-;       DL:     Sum of bytes so far
-;       ES:DI:  Ptr to where to store AL and Checksum byte
-;   Returns:
-;       DL:     Sum of bytes so far
-;       DI:     Incremented by 2
-;   Corrupts registers:
-;       Nothing
-;--------------------------------------------------------------------
-StoswALandChecksumFromDL:
-    mov     ah, al
-    add     ah, dl
-    neg     ah
-    stosw
-    ret