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Type Programmer2017-05-27 23:05:18
Type Programmer, 2017-05-27 23:05:18
I'm writing MiniOS on asm, int 13h doesn't work?
I am writing a Mini-Program to run from the BIOS
Everything works there is a bootloader, the kernel
I would like to load the 6th sector (floppies) already from under the kernel which is on the floppy disk and bend it to the code that I downloaded here that's the problem, it reads the jump freezes
org 500h
use16
push dx
mov [n],dl
mov ax,0000h
mov es,ax
mov bx,test1
mov ch,0
mov dh,0
mov cl,02h
mov dl,80h
mov al,01h
mov ah,03h
int 13h
jmp start
e:
ret
endl:
mov ah,14
xor bl,bl
mov bx,nl
call puts
jmp e
buff_out:
mov ah,14
xor bl,bl
mov bx,buff
call puts
jmp e
del:
mov [buff+si],al
dec si
mov ah,0x0E
mov bh,0
mov al,8
int 10h
mov ah,0x0E
mov bh,0
mov al,0
int 10h
mov ah,0x0E
mov bh,0
mov al,8
int 10h
jmp com2_1
com2_1:
mov ah,0
int 16h
cmp ah,1Ch
jz com2
cmp ah,0Eh
jz del
mov [buff+si],al
inc si
mov ah,0x0E
mov bh,0
int 10h
jmp com2_1
com2_2:
mov ax,0000h
mov es,ax
mov bx,buff
mov ch,0
mov dh,0
mov cl,01h
mov dl,80h
mov al,01h
mov ah,02h
int 13h
jmp com2
com2_3:
mov ax,0000h
mov es,ax
mov bx,buff
mov ch,0
mov dh,0
mov cl,01h
mov dl,80h
mov al,01h
mov ah,03h
int 13h
jmp com2
com2_4:
mov ah,14
xor bl,bl
mov bx,buff
call puts
jmp com2
com2_5:
mov ax,0000h
mov es,ax
mov bx,clr
mov ch,0
mov dh,0
mov cl,01h
mov dl,80h
mov al,01h
mov ah,03h
int 13h
jmp com2
com3_1:
mov cl,1h
start1:
mov ax,0000h
mov es,ax
mov bx,clr
mov ch,0
mov dh,0
mov dl,80h
mov al,01h
mov ah,03h
int 13h
inc cl
cmp cl,30h
jz p0
jmp start1
puts:
mov al,[bx]
test al,al
jz e
inc bx
int 10h
jmp puts
com1:
mov ah,14
xor bl,bl
mov bx,clr
call puts
jmp p0
com2:
mov si,0
mov ah,14
xor bl,bl
mov bx,textE
call puts
mov ah,0
int 16h
cmp al,'1'
jz com2_1
cmp al,'2'
jz com2_2
cmp al,'3'
jz com2_3
cmp al,'4'
jz com2_4
cmp al,'5'
jz com2_5
jmp p0
com3:
mov ah,14
xor bl,bl
mov bx,HD
call puts
mov ah,0
int 16h
jz com3_1
jmp p0
com4:
mov ax,0000h
mov es,ax
mov bx,clr
mov ch,0
mov dh,0
mov dl,80h
mov cl,01h
mov al,01h
mov ah,03h
int 13h
mov ax,0000h
mov es,ax
mov bx,clr
mov ch,0
mov dh,0
mov cl,00h
mov dl,80h
mov al,01h
mov ah,03h
int 13h
mov ah,14
xor bl,bl
mov bx,OSdel
call puts
jmp p0
com5:
mov ax,0000h
mov es,ax
mov bx,7c00h
mov ch,0
mov dh,0
mov cl,01h
mov dl,80h
mov al,01h
mov ah,02h
int 13h
jmp 0000:7c00h
com6:
mov ah,14
xor bl,bl
mov bx,creat
call puts
jmp p0
com7:
mov cl,2
com7_0:
mov ax,0000h
mov es,ax
mov bx,buff
mov ch,0
mov dh,0
mov dl,80h
mov al,01h
mov ah,02h
int 13h
call buff_out
call endl
mov ah,0
int 16h
cmp cl,5h
jz com7_1
add cl,1h
jmp com7_0
com7_1:
mov al,'>'
mov ah,0x0e
int 10h
mov ah,0
int 16h
cmp al,'1'
jz com7_2_1
cmp al,'2'
jz com7_2_1
cmp al,'3'
jz com7_2_1
cmp al,'4'
jz com7_2_1
jmp p0
com7_2_1:
mov al,'>'
mov ah,0x0e
int 10h
pop dx
call conv
mov al,'>'
mov ah,0x0e
int 10h
mov dl,[n]
mov ax,0000h
mov es,ax
mov bx,700h
mov ch,0
mov dh,0
mov al,01h
mov ah,02h
int 13h
jmp 0000:0700h
conv:
cmp al,'1'
jz conv1
cmp al,'2'
jz conv2
cmp al,'3'
jz conv3
cmp al,'4'
jz conv4
p4:
ret
conv1:
mov cl,6
jmp p4
conv2:
mov cl,7
jmp p4
conv3:
mov cl,8
jmp p4
conv4:
mov cl,9
jmp p4
com8:
int 19h
com0:
mov dl,[n]
mov ax,0000h
mov es,ax
mov bx,700h
mov ch,0
mov dh,0
mov cl,06h
mov al,01h
mov ah,02h
int 13h
jmp 0000:700h
start:
mov ah,14
xor bl,bl
mov bx,clr
call puts
mov ah,14
xor bl,bl
mov bx,list
call puts
p0:
mov ah,0
int 16h
cmp al,'1'
jz com1
cmp al,'2'
jz com2
cmp al,'3'
jz com3
cmp al,'4'
jz com4
cmp al,'5'
jz com5
cmp al,'6'
jz com6
cmp al,'7'
jz com7
cmp al,'8'
jz com8
cmp al,'0'
jz com0
jmp start
ret
;; Data segment
nl db 0Ah,0Dh,0
clr db 0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0Ah,0Dh,0
list db 0Ah,0Dh,'1) Clear Screen',0Ah,0Dh,'2) Text Editor',0Ah,0Dh,'3) HDD clr',0Ah,0Dh,'4) Delete OS',0Ah,0Dh,'5) Boot HDD',0Ah,0Dh,'6) Creators',0Ah,0Dh,'7) File List',0Ah,0Dh,'8) Reboot WinCleaner2017',0Ah,0Dh,0
creat db 0Ah,0Dh,'ASMcoder | NovaK',0Ah,0Dh,0
HD db 0Ah,0Dh,'HDD 30 sectors cleared',0Ah,0Dh,0
OSdel db 0Ah,0Dh,'OS was deleted',0Ah,0Dh,0
textE db 0Ah,0Dh,0Ah,0Dh,'1) Print',0Ah,0Dh,'2) Load',0Ah,0Dh,'3) Save',0Ah,0Dh,'4) View',0Ah,0Dh,'5) Clear',0Ah,0Dh,0
test1 db 'test',0
buff db 255
n db 0Here is such a core, and separately the code that doesn’t really work in my opinion is a petty mistake, but to find it ... I
mean, there is a code like this if you pressed 1 then read sector 6 from a floppy disk, do not strictly judge the code, I teach assembler like that (OS by writing)
This is does not work
com7_2_1:
mov al,'>'
mov ah,0x0e
int 10h
pop dx
call conv
mov al,'>'
mov ah,0x0e
int 10h
mov dl,[n]
mov ax,0000h
mov es,ax
mov bx,700h
mov ch,0
mov dh,0
mov al,01h
mov ah,02h
int 13h
jmp 0000:0700h
conv:
cmp al,'1'
jz conv1
cmp al,'2'
jz conv2
cmp al,'3'
jz conv3
cmp al,'4'
jz conv4
p4:
ret
conv1:
mov cl,6
jmp p4
conv2:
mov cl,7
jmp p4
conv3:
mov cl,8
jmp p4
conv4:
mov cl,9
jmp p4Thanks to those who tried to help or even helped!
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