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kolibrios/kernel/trunk/blkdev/fdc.inc
Marat Zakiyanov (Mario79) 2f699083c4 1) Correcting information about copiright
2) VESA draw the small speedup

git-svn-id: svn://kolibrios.org@2455 a494cfbc-eb01-0410-851d-a64ba20cac60
2012-03-13 16:51:57 +00:00

72 lines
1.8 KiB
PHP

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
;; Distributed under terms of the GNU General Public License ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision$
iglobal
;function pointers.
fdc_irq_func dd fdc_null
endg
uglobal
dmasize db 0x0
dmamode db 0x0
endg
fdc_init: ;start with clean tracks.
mov edi, OS_BASE+0xD201
mov al, 0
mov ecx, 160
rep stosb
ret
fdc_irq:
call [fdc_irq_func]
fdc_null:
ret
save_image:
call reserve_flp
call restorefatchain
pusha
call check_label
cmp [FDC_Status], 0
jne unnecessary_save_image
mov [FDD_Track], 0; Öèëèíäð
mov [FDD_Head], 0; Ñòîðîíà
mov [FDD_Sector], 1; Ñåêòîð
mov esi, RAMDISK
call SeekTrack
save_image_1:
push esi
call take_data_from_application_1
pop esi
add esi, 512
call WriteSectWithRetr
; call WriteSector
cmp [FDC_Status], 0
jne unnecessary_save_image
inc [FDD_Sector]
cmp [FDD_Sector], 19
jne save_image_1
mov [FDD_Sector], 1
inc [FDD_Head]
cmp [FDD_Head], 2
jne save_image_1
mov [FDD_Head], 0
inc [FDD_Track]
call SeekTrack
cmp [FDD_Track], 80
jne save_image_1
unnecessary_save_image:
mov [fdc_irq_func], fdc_null
popa
mov [flp_status], 0
ret