Changeset 555 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int19h.asm

Timestamp:

Jun 15, 2013, 1:39:33 PM (11 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• Short timeouts for drive detection work again.
• All drives are now reset before booting (instead of XTIDE Universal BIOS controlled drives only).
• Windows 98 now works without tricks (Floppy Drive accesses are redirected from INT 13h to 40h).

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int19h.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int19h.asm

@@ -79 +79 @@
 ;       DS:     RAMVARS segment
 ;--------------------------------------------------------------------
+.InitializeBiosAndDetectDrives:
 %ifdef MODULE_HOTKEYS
     call    TimerTicks_ReadFromBdaToAX
@@ -97 +98 @@
     jb      SHORT .WaitUntilTimeToCloseHotkeyBar
 %endif
+    ; Fall to .ResetAllDrives
+
+
+;--------------------------------------------------------------------
+; .ResetAllDrives
+;   Parameters:
+;       DS:     RAMVARS segment
+;       ES:     BDA and interrupt vector segment (zero)
+;   Returns:
+;       Nothing
+;--------------------------------------------------------------------
+.ResetAllDrives:
+    ; Reset all drives in the system, not just our drives.
+    xor     ax, ax      ; Disk Controller Reset
+    mov     dl, 80h     ; Reset all hard drives and floppy drives
+    int     BIOS_DISK_INTERRUPT_13h
+    ;call   ResetHardDisksHandledByOurBIOS.ErrorCodeNotUsed ; Our drives only
     ; Fall to SelectDriveToBootFrom