Changeset 567 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Tools/Prepare.asm

Timestamp:

May 26, 2014, 1:25:15 PM (10 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Renamed MODULE_FEATURE_SETS to MODULE_POWER_MANAGEMENT.
• Renamed MODULE_VERY_LATE_INITIALIZATION to MODULE_VERY_LATE_INIT and removed it from the official builds.
• Removed the code that skips detection of slave drives on XT-CF controllers since slave drives can be used with Lo-tech ISA CompactFlash boards.
• Added autodetection of the SVC ADP50L controller to XTIDECFG.
• The autodetection of XT-CF controllers now requires MODULE_8BIT_IDE_ADVANCED in the loaded BIOS.
• Fixed a bug in XTIDECFG from r502 where the "Base (cmd block) address" menu option would be displayed when a serial device was selected as the IDE controller.
• XTIDECFG would display the "Enable interrupt" menu option for the XTIDE r1 but not for the XTIDE r2. It's now displayed for both controller types.
• Disabled the "Internal Write Cache" menu option in the Master/Slave Drive menus for serial device type drives.
• Optimizations and other fixes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Tools/Prepare.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Tools/Prepare.asm

@@ -113 +113 @@
 ; Prepare_ByValidatingSectorsInALforOldInt13h
 ;   Parameters:
-;       AL:     Number of sectors to transfer
+;       AL:     Number of sectors to transfer (1...128 is valid)
 ;   Returns:
 ;       Exits INT 13h if invalid number of sectors in AL
@@ -120 +120 @@
 ;--------------------------------------------------------------------
 Prepare_ByValidatingSectorsInALforOldInt13h:
-    test    al, al
-    js      SHORT .CheckZeroOffsetFor128Sectors     ; 128 or more
-    jz      SHORT InvalidNumberOfSectorsRequested   ; Zero not allowed for old INT 13h
+    test    al, al                              ; Check if 0 < AL < 128 (Clears OF)
+    jle     SHORT .CheckIf128Sectors            ; Jump if not
     ret     ; Continue with transfer
 
 ALIGN JUMP_ALIGN
-.CheckZeroOffsetFor128Sectors:
+.CheckIf128Sectors:
     cmp     al, 128
-    ja      SHORT InvalidNumberOfSectorsRequested
+    jne     SHORT InvalidNumberOfSectorsRequested
     test    si, si                              ; Offset must be zero to xfer 128 sectors
     jnz     SHORT CannotAlignPointerProperly