Changeset 181 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/Timer.asm

Timestamp:

Nov 13, 2011, 3:38:40 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes to all parts of the project:

• Size optimizations.
• Added a define (EXCLUDE_FROM_XTIDECFG) to exclude unused library code from XTIDECFG.
• Tried to minimize time spent with interrupts disabled.
• Some minor attempts to improve speed (reordering instructions etc).
• Tried to improve readability, did some cleanup and fixed some errors in comments.

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/Timer.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Src/Device/Timer.asm

@@ -59 +59 @@
 %ifndef USE_AT
     mov     ax, 2
-    ; Fall to Delay_TimerTicksFromAX
+    ; Fall to Timer_DelayTimerTicksFromAX
 %else
     push    dx
@@ -68 +68 @@
     mov     ah, EVENT_WAIT
     int     BIOS_SYSTEM_INTERRUPT_15h
-    sti                                 ; XT BIOSes return with interrupt disabled
+    sti                                 ; XT BIOSes return with interrupts disabled. TODO: Maybe we can remove this since it's in an AT-only block?
 
     pop     cx