Changeset 250 in xtideuniversalbios

Timestamp:

Feb 16, 2012, 2:50:29 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• INT 19h reset handler is now properly installed.

File:

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

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int19h.asm

@@ -29 +29 @@
 ALIGN JUMP_ALIGN
 Int19h_BootLoaderHandler:
+    ; Install INT 19h handler for proper reboot
     LOAD_BDA_SEGMENT_TO es, ax
-    call    Initialize_AndDetectDrives      ; Installs new boot menu loader
+    mov     bx, BIOS_BOOT_LOADER_INTERRUPT_19h  ; INT 19h interrupt vector offset
+    mov     si, Int19h_ResetHandler             ; INT 19h handler to reboot the system
+    call    Interrupts_InstallHandlerToVectorInBXFromCSSI
+    call    Initialize_AndDetectDrives          ; Installs new boot menu loader
     ; Fall to .PrepareStackAndSelectDriveFromBootMenu
 
@@ -140 +144 @@
     push    cx          ; sgment address for MBR
     push    bx          ; offset address for MBR
-    mov     bx, BIOS_BOOT_LOADER_INTERRUPT_19h  ; INT 19h interrupt vector offset
-    mov     si, Int19h_ResetHandler             ; INT 19h handler to reboot the system
-    call    Interrupts_InstallHandlerToVectorInBXFromCSSI
     retf                ; NOTE: DL is set to the drive number