Changeset 181 in xtideuniversalbios for trunk/Assembly_Library/Src/File/Drive.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/Assembly_Library/Src/File/Drive.asm (modified) (1 diff)

trunk/Assembly_Library/Src/File/Drive.asm

@@ -72 +72 @@
     call    Drive_SetDefaultFromDL
     eMOVZX  cx, al          ; Number of potentially valid drive letters available
-    MIN_U   cx, 32
+    cmp     cl, 32
+    jb      SHORT .Return
+    mov     cl, 32
+ALIGN JUMP_ALIGN, ret
+.Return:
     ret