Changeset 90 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Inc

Timestamp:

Jan 27, 2011, 11:31:31 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Removed INT 13h format and diagnostics functions.
• Removed INT 18h callback handler.
• Removed configuration for early/late initialization. Now XT builds always use late and AT build early initialization.
• Reduced number of supported IDE controllers from 5 to 4.
• Removed reserved configuration bytes.
• Removed simple and system boot loaders.

Location:

trunk/XTIDE_Universal_BIOS/Inc

Files:

• BootVars.inc (modified) (1 diff)
• RomVars.inc (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Inc/BootVars.inc

@@ -20 +20 @@
 struc BOOTVARS
                     resb    800h
-    .dwSys18h       resb    4       ;  800h, System INT 18h handler (Diskless boot, Boot failure)
     .dwPostStack    resb    4       ;  804h, POST stack when entering INT 19h
-                    resb    4
+                    resb    8
     .rgBootNfo      resb    73F4h   ;  80Ch, Array containing BOOTNFO structs
     .rgbMnuStack:                   ; 7C00h and below, Boot Menu stack

trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

@@ -1 @@
-; File name     :   RomVars.inc
-; Project name  :   IDE BIOS
-; Created date  :   23.3.2010
-; Last update   :   1.5.2010
-; Author        :   Tomi Tilli
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Defines for ROMVARS struct containing variables stored
 ;                   in BIOS ROM.
@@ -13 +9 @@
     .wRomSign       resb    2   ; ROM Signature (AA55h)
     .bRomSize       resb    1   ; ROM size in 512 byte blocks
-    .rgbJump        resb    5   ; First instruction to ROM init (jmp)
-    ; Offset 8 (8h) starts here
-    .rgbDate        resb    8   ; BIOS build date string (mm/dd/yy)
-    ; Offset 16 (10h) starts here
+    .rgbJump        resb    3   ; First instruction to ROM init (jmp)
+
     .rgbSign        resb    8   ; Signature for XTIDE Configurator Program
     .szTitle        resb    31  ; BIOS title string
-    .szVersion      resb    25  ; BIOS version string
-    ; Offset 80 (50h) starts here
+    .szVersion      resb    23  ; BIOS version string
+
     .wFlags         resb    2   ; Word for ROM flags
-    .bIdeCnt        resb    1   ; Number of supported IDE controllers
+    .bIdeCnt        resb    1   ; Number of available IDE controllers
     .bBootDrv       resb    1   ; Boot Menu default drive
-                    resb    1   ; (Was boot menu maximum height)
     .bBootDelay     resb    1   ; Boot Menu selection delay in seconds
-    .bBootLdrType   resb    1   ; Boot Loader type
     .bMinFddCnt     resb    1   ; Minimum number of Floppy Drives
     .bStealSize     resb    1   ; Number of 1kB blocks stolen from 640kB base RAM
-                    resb    7
-    ; Offset 96 (60h) starts here
-    ; Last IDEVARS must not start after offset FFh.
+
     .ideVars0       resb    IDEVARS_size
     .ideVars1       resb    IDEVARS_size
     .ideVars2       resb    IDEVARS_size
     .ideVars3       resb    IDEVARS_size
-    .ideVars4       resb    IDEVARS_size
 endstruc
 
 ; Bit defines for ROMVARS.wFlags
 FLG_ROMVARS_FULLMODE    EQU (1<<0)  ; Full operating mode (steals base RAM, supports EBIOS etc.)
-FLG_ROMVARS_LATE        EQU (1<<1)  ; Late initialization
 FLG_ROMVARS_DRVXLAT     EQU (1<<2)  ; Enable drive number translation
 FLG_ROMVARS_ROMBOOT     EQU (1<<3)  ; Include ROMBOOT to boot menu
-FLG_ROMVARS_DRVNFO      EQU (1<<4)  ; Display drive info on boot menu
 FLG_ROMVARS_MAXSIZE     EQU (1<<5)  ; Maximize size by sacrificing compatibility with some old BIOSes
-
-; Bootloader types for ROMVARS.bBootLdrType
-BOOTLOADER_TYPE_MENU    EQU (0<<1)  ; Display boot menu on boot loader
-BOOTLOADER_TYPE_SIMPLE  EQU (1<<1)  ; Simple bootloader without menu
-BOOTLOADER_TYPE_NONE    EQU (3<<1)  ; Do not install boot loader
 
 
@@ -59 +41 @@
     .bBusType           resb    1   ; Bus type
     .bIRQ               resb    1   ; Interrupt Request Number
-                        resb    4   ; Reserved
     .drvParamsMaster    resb    DRVPARAMS_size
     .drvParamsSlave     resb    DRVPARAMS_size
@@ -74 +55 @@
 struc DRVPARAMS
     .wFlags         resb    2   ; Drive flags
-                    resb    2   ; Reserved
     .wCylinders     resb    2   ; User specified cylinders (1...16383)
     .wSectAndHeads: