probelm loading kernel
Posted: Fri Dec 12, 2003 7:50 am
in the following code i'm trying to read 4 tracks from floppy and load them at address 0000:1000.This code works well for 3 tracks.But when i add lines 1 to 9 to read 4th track,system just hangs and nothig happens.if i print something before line 1 it is printed and if i print something after line 9,nothing is printed.
It means problem is in those lines from 1 to 9.
Please help me to sort out that problem.
It means problem is in those lines from 1 to 9.
Please help me to sort out that problem.
Code: Select all
[bits 16]
[ORG 0x7c00]
jmp 0000:main
main:
mov ax,0x0000
mov es,ax
mov bx,0x1000
mov ah,2
mov al,18
mov ch,1
mov cl,1
mov dh,0
mov dl,0
int 13h
jc error
add bx,0x2400
mov ah,2
mov al,18
mov ch,2
mov cl,1
mov dh,0
mov dl,0
int 13h
jc error
add bx,0x2400
mov ah,2
mov al,18
mov ch,3
mov cl,1
mov dh,0
mov dl,0
int 13h
jc error
1: add bx,0x2400
2: mov ah,2
3: mov al,18
4: mov ch,4
5: mov cl,1
6: mov dh,0
7: mov dl,0
8: int 13h
9: jc error
jmp 0x0000:0x1000
error:
mov ah,0eh
mov al,'R'
int 10h
hang:
jmp hang
times 510- ($-$$) db 0
dw 0AA55h