source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/BootVars.inc @ 96

Last change on this file since 96 was 96, checked in by aitotat, 13 years ago

Changes to XTIDE Universal BIOS:

  • Cleaned boot loader code some more.
File size: 1.0 KB
Line 
1; Project name  :   XTIDE Universal BIOS
2; Description   :   Defines for BOOTVARS struct used by boot menu
3;                   and drive initialization.
4%ifndef BOOTVARS_INC
5%define BOOTVARS_INC
6
7
8BOOT_READ_RETRY_TIMES       EQU     3
9
10
11; Boot Menu Information Table. These are generated for all XTIDE Universal
12; BIOS drives. Available only until boot is successfull.
13LEN_BOOTNFO_DRV     EQU     26      ; Bytes reserved for drive name
14struc BOOTNFO
15    .twSectCnt      resb    6       ; Total user addressable sectors
16    .szDrvName      resb    LEN_BOOTNFO_DRV+1   ; Drive name
17                    resb    1       ; Alignment
18endstruc
19
20
21; Pre-boot variables. These do not exist after successfull boot to OS.
22; Segment is always 0000h, same as BDA segment
23struc BOOTVARS
24                    resb    800h
25    .dwPostStack    resb    4       ;  804h, POST stack when entering INT 19h
26                    resb    8
27    .rgBootNfo      resb    73F4h   ;  80Ch, Array containing BOOTNFO structs
28    .rgbMnuStack:                   ; 7C00h and below, Boot Menu stack
29    .rgbAtaInfo:                    ; 7C00h, ATA Information for drive detection
30    .rgbBootSect    resb    512     ; 7C00h, Boot sector
31endstruc
32
33
34%endif ; BOOTVARS_INC
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