Changeset 93 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS

Timestamp:

Jan 27, 2011, 6:00:34 PM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Diagnostic cylinder can no longer be reserved.

Location:

trunk/XTIDE_Universal_BIOS

Files:

• Inc/RomVars.inc (modified) (1 diff)
• Src/Boot/BootMenu.asm (modified) (1 diff)
• Src/Boot/BootMenuEvent.asm (modified) (1 diff)
• Src/Handlers/Int13h/AH8h_HParams.asm (modified) (2 diffs)
• Src/Main.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

@@ -31 +31 @@
 FLG_ROMVARS_FULLMODE    EQU (1<<0)  ; Full operating mode (steals base RAM, supports EBIOS etc.)
 FLG_ROMVARS_DRVXLAT     EQU (1<<2)  ; Enable drive number translation
-FLG_ROMVARS_MAXSIZE     EQU (1<<5)  ; Maximize size by sacrificing compatibility with some old BIOSes
 
 

trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenu.asm

@@ -82 +82 @@
     add     cl, BOOT_MENU_HEIGHT_WITHOUT_ITEMS
     CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
+    sub     ah, MENU_SCREEN_BOTTOM_LINES*2
     MIN_U   ah, cl
     ret

trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuEvent.asm

@@ -62 +62 @@
     mov     BYTE [si+MENUINIT.bWidth], BOOT_MENU_WIDTH
     call    BootMenu_GetHeightToAHwithItemCountInCL
-    sub     ah, MENU_SCREEN_BOTTOM_LINES*2
     mov     [si+MENUINIT.bHeight], ah
     stc

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH8h_HParams.asm

@@ -1 @@
-; File name     :   AH8h_HParams.asm
-; Project name  :   IDE BIOS
-; Created date  :   27.9.2007
-; Last update   :   24.9.2010
-; Author        :   Tomi Tilli
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Int 13h function AH=8h, Read Disk Drive Parameters.
 
@@ -73 +69 @@
     call    FindDPT_ForDriveNumber
     call    AccessDPT_GetLCHSfromPCHS   ; AX=sectors, BX=cylinders, DX=heads
-    call    AH8h_ReserveCylinders
     call    AH8h_PackReturnValues
     xor     ax, ax                      ; Clear AH and CF
-    ret
-
-
-;--------------------------------------------------------------------
-; Reserves diagnostic cylinder if so configured.
-;
-; AH8h_ReserveCylinders
-;   Parameters:
-;       BX:     Total number of L-CHS cylinders available
-;       DS:DI:  Ptr to DPT
-;   Returns:
-;       BX:     Number of L-CHS cylinders available after reserving
-;   Corrupts registers:
-;       CX
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-AH8h_ReserveCylinders:
-    test    BYTE [cs:ROMVARS.wFlags], FLG_ROMVARS_MAXSIZE
-    jnz     SHORT .Return
-    dec     bx                          ; Reserve diagnostic cylinder
-ALIGN JUMP_ALIGN
-.Return:
     ret
 

trunk/XTIDE_Universal_BIOS/Src/Main.asm

@@ -54 +54 @@
 ;---------------------------;
 %ifdef USE_AT
-    at  ROMVARS.wFlags,         dw  FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_MAXSIZE
+    at  ROMVARS.wFlags,         dw  FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT
     at  ROMVARS.bIdeCnt,        db  3                       ; Number of supported controllers
     at  ROMVARS.bBootDrv,       db  80h                     ; Boot Menu default drive
@@ -85 +85 @@
 ; XT and XT+ Build default settings ;
 ;-----------------------------------;
-    at  ROMVARS.wFlags,         dw  FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_MAXSIZE
+    at  ROMVARS.wFlags,         dw  FLG_ROMVARS_DRVXLAT
     at  ROMVARS.bIdeCnt,        db  1                       ; Number of supported controllers
     at  ROMVARS.bBootDrv,       db  80h                     ; Boot Menu default drive