;
; BIOS configuration data
;
; (C)1997-2001 Pascal Dornier / PC Engines; All rights reserved.
; This file is licensed pursuant to the COMMON PUBLIC LICENSE 0.5.
;
; This data is modified to store system configuration, such as
; PCI data, hard disk parameters, etc.
;
; pd 991020 add hd_top
;
even
db "_DAT" ;header for checksum utility
dw d_sum-d_beg ;pointer to checksum
d_beg: ;start of data
;
; Hard disk parameters
;
hd_prm0: db dpt_len dup 0
hd_prm1: db dpt_len dup 0
hd_top: db 82h ;top HDD + 1
;
; PCI data
;
; this is a procedure to avoid problems in protected mode access...
getlbus: db 0b0h ;MOV AL
d_lastbus: db 0 ;last PCI bus
ret
#if def CDBOOT
even
d_cdlba: dw 0,0 ;base LBA for last session
d_cdbase: dw 0 ;CD-ROM port base
d_cddrv: db 0b0h ;slave drive
d_cdsec: db 15 ;sectors per track
d_cdflag: db 0 ;1 = enable CD emulation
#endif
;
; Data checksum
;
d_sum: db 0 ;checksum, end of data block
;(filled in by utility)
;
; calculate data checksum
;
d_dosum:
#if ! def M6117
wbinvd ;write back cache
#endif
mov al,0
mov si,offset d_beg
mov cx,d_sum-d_beg
d_dosum1: add al,[cs:si] ;calculate checksum
inc si
loop d_dosum1
neg al
mov [cs:si],al
#if ! def M6117
wbinvd
#endif
ret
