Changeset 158 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Address.asm

Timestamp:

May 2, 2011, 9:41:51 AM (13 years ago)

Author:

aitotat

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Optimized few bytes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Address.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Address.asm

@@ -89 +89 @@
     ; (LCylinder << n) + (LHead / PHeadCount)
     mov     dx, cx                  ; Copy L-CHS Cylinder number to DX
-    mov     cl, [di+DPT.wFlags]     ; Load shift count
-    and     cl, MASK_DPT_CHS_SHIFT_COUNT
+    mov     cl, [di+DPT.bFlagsLow]  ; Load shift count
+    and     cl, MASKL_DPT_CHS_SHIFT_COUNT
     shl     dx, cl                  ; DX = LCylinder << n
     add     ax, dx                  ; AX = P-CHS Cylinder number