Changeset 148 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Inc/RamVars.inc

Timestamp:

Mar 19, 2011, 8:09:41 PM (13 years ago)

Author:

aitotat

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• INT 13h optimizations to save almost 100 bytes.

File:

• trunk/XTIDE_Universal_BIOS/Inc/RamVars.inc (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Inc/RamVars.inc

@@ -12 +12 @@
     .bFDSwap        resb    1   ; Floppy Drive to swap to 00h and vice versa
     .bHDSwap        resb    1   ; Hard Drive to swap to 80h and vice versa
-    .bRecurCnt      resb    1   ; INT 13h recursion counter for drive translation
+    .bXlatedDrv     resb    1   ; Drive number after translation
                     resb    1   ; For WORD alignment
 endstruc
@@ -20 +20 @@
 ; at the top of interrupt vectors.
 struc RAMVARS
-    .fpOldI13h      resb    4   ; Far pointer to old INT 13h handler
-
-    .dwI13DIDS:                 ; Temporary DI and DS storages when calling...
-    .wI13hDI:                   ; ...previous INT 13h handler
-    .wIdeBase       resb    2   ; Base port address for currently handled controller
-
-    .wI13hDS:
+    .fpOldI13h          resb    4   ; Far pointer to old INT 13h handler
+    .wIdeBase           resb    2   ; Base port address for currently handled controller
     .wTimeoutCounter    resb    2
 
     .wDrvCntAndFirst:
-    .bDrvCnt        resb    1   ; Number of drives handled by this BIOS
-    .bFirstDrv      resb    1   ; Number of first drive for this BIOS
+    .bDrvCnt            resb    1   ; Number of drives handled by this BIOS
+    .bFirstDrv          resb    1   ; Number of first drive for this BIOS
 
     ; Variables for drive number translation
@@ -39 +34 @@
 ; Full mode RAM variables.
 struc FULLRAMVARS
-    .ramVars        resb    RAMVARS_size
-    .wSign          resb    2           ; FULLRAMVARS signature for finding segment
+    .ramVars            resb    RAMVARS_size
+    .wSign              resb    2       ; FULLRAMVARS signature for finding segment
 endstruc