Index
> OS Construction > SEA, systeme d'exploitation des adressages. |
| Author |
|
|
edfed 05 Apr 2006, 10:44
the begining of my os
Code:
org 100h
include 'mode13h.inc'
root=2
mov ax,05000h
mov gs,ax
mov al,0
mov di,0
@@:
mov [gs:di],al
inc di
jne @b
mov [curdir],sectorfield
mov [cursector],fieldsector
call copysector
mov [curdir],rootdir
mov [cursector],root
call copydir
mov [curdir],asmdir
mov [cursector],3
call copydir
mov [cursector],root
mov [curdir],rootdir
mov ax,05000h
mov [dirseg],ax
mov gs,ax
mov eax,'root'
mov [gs:0],eax
mov byte[gs:4],'/'
mov byte[gs:5],0
mov [typeptr],5
mov [color1],48
mov [colorclear],16
mov [datatype],4
jmp debut
typetime0=15
typetime1=2
include 'cursor.inc'
include 'typematic.inc'
include 'khdle.inc'
include 'displaing.inc'
include 'hextoascii.inc'
include 'mouse.inc'
include 'pointeur.inc'
include 'putbitmap.inc'
include 'text.inc'
include 'chr$.inc'
include 'refresh.inc'
include 'scancode.inc'
include 'diskrw.inc'
include 'explore.inc'
include 'copydir.inc'
include 'interpret.inc'
include 'misc.inc'
include 'scanfree.inc'
include 'sectorfield.inc'
include 'comtable.inc'
include 'asciitoval.inc'
currentfolder dw 07000h
size db 'size=',0
location db 'location=',0
curdirtxt db 'root/',0
;curdir dd sectorfield
mouse? dd 0
debut:
call mouse
cmp [curcode],key.entrée
jne @f
call interpret
cmp [curcode],key.echap
je @f
mov [curcode],key.rien
@@:
call command
call explore
mov eax,[curs.x]
mov ebx,[curs.y]
mov [put.x],eax
mov [put.y],ebx
mov esi,pointeur
call put
call refresh_clear
cmp [curcode],key.echap
je exit
mov ax,0c00h
int 21h
in al,60h
mov [curcode],al
jmp debut
exit:
mov ax,3
int 10h
int 20h
rootdir:
.size dd .end-.size-4
.fil00:
db 'asmx86',0,0,0,0,0,0,0,0,0,0
dd asmdir.end-asmdir
dd 00000003h
.fil01:
db 'typematic',0,0,0,0,0,0,0
dd 0
dd 00000004h
.fil02:
db '3d prossessing',0,0
dd 0
dd 00000005h
.fil03:
db '3dengine.com',0,0,0,0
dd 0
dd 00000006h
.fil04:
db 'drag n move',0,0,0,0,0
dd 0
dd 00000007h
.fil05:
db 'explorer.asm',0,0,0,0
dd 0
dd 00000008h
.fil06:
db 'mouse.inc',0,0,0,0,0,0,0
dd 0
dd 00000009h
.fil07:
db 'mode13h.inc',0,0,0,0,0
dd 0
dd 0000000ah
.fil08:
db 'scancode.inc',0,0,0,0
dd 0
dd 0000000bh
.fil09:
db 'refresh.inc',0,0,0,0,0
dd 0
dd 0000000ch
.end:
asmdir:
.size dd .end-.size-4
.fil00:
db '3dpross',0,0,0,0,0,0,0,0,0
dd 0
dd 00000002h
db 'asm',0,0,0,0,0,0,0,0,0,0,0,0,0
dd 0
dd 00000003h
.end:
it needs a primary slave the hard disk cannot be used if the program write on it this program only test some disk operations algorythms and command line operations it can launch a programm by using the name or a preestablished function name the avaibles function names are exit,quit,x,q mouse,m scan,s new,n path,p backspace+ctrl erase the previous word enter to execute the interpret note that it work if you haven't a primary slave because it use the bios functions int13h,2 and 3
Last edited by edfed on 17 Nov 2010, 00:12; edited 2 times in total |
|||||||||||
05 Apr 2006, 10:44 |
|
|
vid 08 Sep 2006, 08:23
going to OS-DEV
|
|||
|
08 Sep 2006, 08:23 |
|
|
Dex4u 08 Sep 2006, 23:54
First go and read this tut http://www.geocities.com/siliconvalley/2072/atapi.htm
Also see the code for CdPod may help. |
|||
|
08 Sep 2006, 23:54 |
|
|
edfed 15 Oct 2007, 21:39
frankly
coding an os is very very hard and the coding of an os alone is really a crazy idea i am crazy so i continue rendez vous in 2008 for a test version!!!! |
|||
|
15 Oct 2007, 21:39 |
|
|
Dex4u 16 Oct 2007, 18:14
Welcome to the crazy club
 . |
|||
|
16 Oct 2007, 18:14 |
|
|
edfed 16 Oct 2007, 18:59
os dev is a good idea
aide memoire all buffers in dynamic segment segment pages linked to the hard disk hard disk linked to the files 
files linked into the file system file system linked to the hard disk ouch!!!! it seem like a 2nd degree equation y=ax²+bx+c ouch delta=b²-4ac? who are a, b, c, x and y ? Code:
oooo oooo
oo oo oo oo
oo ooo oo
oo oo oo oo
oooo oooo
|
|||
|
16 Oct 2007, 18:59 |
|
|
edfed 28 Nov 2007, 16:30
aide memoire:
les fonctions sont liées par leurs nom/nom de classe/nom de librairie. au choix. l'inclusion de fonctions dediées est aussi permise, uniquement en asm. les autres languages n'auront que les fonctions permises par ces languages. les RING sont utilisés pour limiter les acces a certaines librairies. par exemple, un programme ne peu pas call une int. come il ne pourra pas call une fonction purement syteme. comme l'écriture directe sur disques. sinon, l'ecriture directe sur ecran, ports et autres devront etre mises sur liste d'attente. l'asm aura tout les droits les fonctions venantes des librairies seront plus limitées une fonction definie en ring3 ne pourra pas appeler directement une fonction de ring 0,1,2. pour cela elle devra passer par un gardien. ça ralentira le systeme et c'est pour ça qu'il faut definir un maximum de fonctions en asm pur. au boulot mister. allez assez causé. putain ferme ta gueule et passe a l'action merde. |
|||
|
28 Nov 2007, 16:30 |
|
|
edfed 30 Nov 2007, 02:42
is my floppy drive dead? really dead?
putain de lecteur de disquette de merde incapable de lancer bw0.com fait chier. bon je vais le tester depuis mon autre pc. et le transferer en passant par fasm. voilà. c'est dit. if someone can say to me if it works, or don't, it's good. Finally it works. to the ones who download it, please don't steal my code style. use it but don't say it's your style. it's my baby. i know it's not a great code for the moment. but let me devellop it.
|
|||||||||||
|
30 Nov 2007, 02:42 |
|
|
LocoDelAssembly 30 Nov 2007, 03:26
The bitch diskette reader of shit is not dead (unless it really can't read/write with anything).
Check http://www.ctyme.com/intr/rb-0608.htm . You need to retry at least three times (and using Int13/00 between attempts). In my experience not actually needed when you run under windows9x (and maybe XP, I'm not sure at this moment :S), but on DOS or at boot loader stage you need to do this. BTW, if the proc is this: Code: proc sub_10489 near mov al, [byte_104B9] mov cx, [word_104BB] mov bl, cl mov cl, ch mov ch, cl shl cl, 6 and cl, 0C0h or cl, [byte_104BA] mov dh, [byte_104BD] mov dl, [byte_104C2] mov bx, [word_104BE] push es mov es, bx assume es:nothing mov bx, [word_104C0] mov ah, 3 int 13h ; DISK - WRITE SECTORS FROM MEMORY ; AL = number of sectors to write, CH = track, CL = sector ; DH = head, DL = drive, ES:BX -> buffer ; Return: CF set on error, AH = status, AL = number of sectors written pop es retn endp sub_10489 Then please post code of bw0.com since there are wierd things at this proc and according to IDA, word_104BB is only refered once so seems that it is never initialized (perhaps a more carefull analysis proof otherwise but no time to do it now). |
|||
|
30 Nov 2007, 03:26 |
|
|
edfed 30 Nov 2007, 03:32
code posted at heap/goodpackage.
at least three times. i never made this. if it don't works, i try again. ok. i'll modify it. everybody is against me..... |
|||
|
30 Nov 2007, 03:32 |
|
|
edfed 30 Nov 2007, 04:29
finally it works.
one really strange thing. i was editing it on machine 1 and doesn't work. so i edit it on machine 2, it works. i transfert it with this board, and it finally works on 1 & 2. the code was always the same. on 1 & 2 it was strictlly the same code. on 1, i must hit enter and finally obtain error. on 2 it was the same. the file was edited from a save folder. it doesn't work. edited from original folder, it works. i delete all folders referencing to this non working code, recreate all this, and finally all goes well. very strange, my brain is burnin'
|
|||||||||||
|
30 Nov 2007, 04:29 |
|
|
edfed 01 Dec 2007, 18:21
the problem is still there
i explain: my bootwriter.com works if it is in bw0.4/ but when i make a copy to sea/ it doesn't works. more, it waits i to hit enter to start and returns an error. why? it makes me feel idiot. someone can try please? you need to make this to share my test conditions. download sea.zip in the desktop/ folder c:\windows\desktop\sea\ make the same with bw0[1].4.zip c:\windows\desktop\bw0[1].4\ verify that bootwriter.com last byte is 0 (floppy drive) launch it normally it works. copy bootwriter into sea/ and launch it, normally it doesn't works. very very strange bug. my os is win98 first edition, is there some thing i don't know? |
|||
|
01 Dec 2007, 18:21 |
|
|
rhyno_dagreat 04 Dec 2007, 06:00
edfed wrote: is my floppy drive dead? really dead? No offense, it's kinda funny to see someone cuss out a piece of hardware in French.  |
|||
|
04 Dec 2007, 06:00 |
|
|
edfed 04 Dec 2007, 23:58
yeah , i know.
all americans i know told me the same. like "putain de sa race". one of them was always repeating me. poutain d' sa wass, poutain d' sa wass. but, concretelly, have you got an idea on how to use dead floppies with int 13h? i need an other point of view on my file system sercives. like: format drive. create file. file type, where to reserve sectrors? open file??? i doubt it really needed. read file. how many bytes from offset? erase file. delete all sectors or just the references in FS? and a very important thing, thge sector occupation bitmap; 1 for each individual tracks or, 1 for the full drive? track's sector bitmap + global tracks bitmap or, just track's sector bitmap? there are a lot of possibilities. the problem is to find the best before coding anything, cause, ones the project is advanced, it's more complicated to change the little details. |
|||
|
04 Dec 2007, 23:58 |
|
|
rhyno_dagreat 05 Dec 2007, 04:41
By dead floppies do you mean dead harware wise or just not formatted correctly? if it's not formatted, then it's a simple task of writing the FAT headers to the bootsector, the 2 FATs and root dir to the second sector.
|
|||
|
05 Dec 2007, 04:41 |
|
|
rhyno_dagreat 05 Dec 2007, 04:42
Oh, and if it's physically dead, as in broken... can't you just get a new floppy?
|
|||
|
05 Dec 2007, 04:42 |
|
|
edfed 05 Dec 2007, 05:04
phisically dead, but there are hidden bad sector flag used by bios.
where are they physically? it's a good question. floppy is out but as it's a very backward compatible thing, it's good to use it for OS dev |
|||
|
05 Dec 2007, 05:04 |
|
|
Dex4u 05 Dec 2007, 16:13
Its also possible to use USB fob for OS dev if your BIOS supports it.
|
|||
|
05 Dec 2007, 16:13 |
|
|
edfed 05 Dec 2007, 16:37
is it possible to modify the BIOS INT 13h of old PCs?
all my computers have usb ports, but they do not support USB drive. if i flash the BIOS then it's possible to BOOT on USB! [edit] finally, the problem is half solved here is the solution about a virtual floppy drive acces using a dos file. http://board.flatassembler.net/topic.php?p=122778#122778 |
|||
|
05 Dec 2007, 16:37 |
|
< Last Thread | Next Thread > |
Forum Rules:
|