Changeset 61 in xtideuniversalbios

Timestamp:

Nov 28, 2010, 3:45:50 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• AA55h signature no longer required when booting from floppy drives. This should make booter games work.

Location:

trunk/XTIDE_Universal_BIOS

Files:

• Doc/changes.txt (modified) (1 diff)
• Src/Handlers/Int19h.asm (modified) (3 diffs)
• Src/Main.asm (modified) (3 diffs)
• makefile (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Doc/changes.txt

@@ +1 @@
+XTIDE Universal BIOS v1.1.5 (28 November 2010)
   * Errors are now being checked when calling previous INT 13h handler on AH=08h Read Disk Drive Parameters.
     This fixes infinite drive checking loop on unofficial MS-DOS 7.10 installer.
-  * Better INT 40h handler detection to fix floppy drive detection with AMI 286 BIOS.
+  * Better INT 40h handler detection to fix floppy drive detection with AMI 286/386 BIOS.
+  * AA55h signature no longer required when booting from floppy drives. This should make booter games work.
+
 
 XTIDE Universal BIOS v1.1.4 (24 August 2010)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int19h.asm

@@ -2 +2 @@
 ; Project name  :   IDE BIOS
 ; Created date  :   3.8.2007
-; Last update   :   1.8.2010
+; Last update   :   28.11.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Int 19h BIOS functions (Boot Strap Loader).
@@ -74 +74 @@
     call    Int19h_LoadFirstSectorFromDL
     jc      SHORT .FailedToLoadFirstSector
+
+    test    dl, 80h
+    jz      SHORT .AlwaysBootFromFloppyDriveForBooterGames
     cmp     WORD [es:bx+510], 0AA55h        ; Valid boot sector?
-    jne     SHORT .FirstSectorNotBootable
+    jne     SHORT .FirstHardDiskSectorNotBootable
+.AlwaysBootFromFloppyDriveForBooterGames:
     call    BootPrint_BootSectorLoaded
     stc
@@ -83 +87 @@
     clc
     ret
-.FirstSectorNotBootable:
+.FirstHardDiskSectorNotBootable:
     call    BootPrint_FirstSectorNotBootable
     clc

trunk/XTIDE_Universal_BIOS/Src/Main.asm

@@ -2 +2 @@
 ; Project name  :   XTIDE Universal BIOS
 ; Created date  :   28.7.2007
-; Last update   :   24.9.2010
+; Last update   :   28.11.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Main file for BIOS. This is the only file that needs
@@ -38 +38 @@
     at  ROMVARS.bRomSize,   db  CNT_ROM_BLOCKS  ; ROM size in 512B blocks
     at  ROMVARS.rgbJump,    jmp Initialize_FromMainBiosRomSearch
-    at  ROMVARS.rgbDate,    db  "09/24/10"      ; Build data (mm/dd/yy)
+    at  ROMVARS.rgbDate,    db  "11/28/10"      ; Build data (mm/dd/yy)
     at  ROMVARS.rgbSign,    db  "XTIDE110"      ; Signature for flash program
     at  ROMVARS.szTitle
@@ -49 +49 @@
         db  " (XT)=-",STOP
 %endif
-    at  ROMVARS.szVersion,  db  "v1.1.4+ (09/24/10)",STOP
+    at  ROMVARS.szVersion,  db  "v1.1.5 (11/28/10)",STOP
 
 ;---------------------------;

trunk/XTIDE_Universal_BIOS/makefile

@@ -105 +105 @@
 
 # Make clean debug and release versions
-all: clean at xt
+all: clean at xtplus xt
     @echo All build!