Changeset 522 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs

Timestamp:

Mar 11, 2013, 3:22:21 PM (12 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• INT 13h stack is now at the beginning of RAMVARS.
• RELOCATE_INT13H_STACK is now allowed only for AT builds. This saves few bytes from interrupt table when lite mode is used.

Location:

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs

Files:

• FindDPT.asm (modified) (1 diff)
• RamVars.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

@@ -116 +116 @@
 
     mul     dl
-    add     ax, BYTE RAMVARS_size       ; Clears CF (will not overflow)
+    add     ax, RAMVARS_size            ; Clears CF (will not overflow)
 
     pop     dx

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/RamVars.asm

@@ -77 +77 @@
     mov     WORD [RAMVARS.wDrvDetectSignature], RAMVARS_DRV_DETECT_SIGNATURE
     mov     WORD [RAMVARS.wSignature], RAMVARS_RAM_SIGNATURE
-    ; Fall to .InitializeInt13hStackChangeVariables
-
-;--------------------------------------------------------------------
-; .InitializeInt13hStackChangeVariables
-;   Parameters:
-;       DS:     RAMVARS segment
-;   Returns:
-;       Nothing
-;   Corrupts registers:
-;       AX
-;--------------------------------------------------------------------
-%ifdef RELOCATE_INT13H_STACK
-.InitializeInt13hStackChangeVariables:
-    eMOVZX  ax, BYTE [cs:ROMVARS.bStealSize]
-    eSHL_IM ax, 10          ; kiB to Bytes = Top of stack offset
-    mov     [RAMVARS.wNewStackOffset], ax
-%endif
-
 ;; There used to be a DriveXlate_Reset call here.  It isn't necessary, as we reset
 ;; when entering the boot menu and also before transferring control at boot time and