Changeset 47006 in vbox

Timestamp:

Jul 5, 2013 12:45:37 PM (12 years ago)

Author:

vboxsync

Message:

BIOS: Properly turn off floppy motor to save electricity.

File:

• trunk/src/VBox/Devices/PC/BIOS/orgs.asm (modified) (1 diff)

trunk/src/VBox/Devices/PC/BIOS/orgs.asm

@@ -1721 +1721 @@
                 mov     ds, ax
 
-                ;; time to turn off floppy driv motor(s)?
-                mov     al, ds:[440h]    ;; @todo Shouldn't this be decreased if > 0? How would we ever get to zero otherwise?
+                ;; time to turn off floppy drive motor(s)?
+                mov     al, ds:[440h]
                 or      al, al
                 jz      int08_floppy_off
+                dec     al
+                mov     ds:[440h], al
+                jnz     int08_floppy_off
                 ;; turn motor(s) off
                 push    dx