68 lines
1021 B
NASM
68 lines
1021 B
NASM
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.model tiny
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.486
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smart
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.code
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org 0100h
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start:
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jmp transform
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NameBoot db 'Boot.exe',0
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nameboot2 db 'Boot.bin',0
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buffer db 510 dup (0)
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dw 0AA55h
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message db 0ah,0dh,'Transformation of boot.com to boot.bin...',0ah,0dh,'By Nico',0ah,0dh,'Copyright 2000',0ah,0dh,'$'
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ok db 0ah,0dh,'The transformation was done succefully !',0ah,0dh,'$'
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errormsg db 0ah,0dh,'Some errors has been detected !',0ah,0dh,'$'
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transform:
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mov ah,09
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mov dx,offset message
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int 21h
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mov ax,3D00h
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mov dx,offset nameboot
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int 21h
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jc error
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mov bx,ax
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mov ax,4202h
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xor cx,cx
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xor dx,dx
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int 21h
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jc error
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cmp dx,0
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jne error
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mov ax,4200h
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xor cx,cx
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mov dx,7E00h
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int 21h
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jc error
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mov ah,3fh
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mov cx,512
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mov dx,offset buffer
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int 21h
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jc error
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mov ah,3eh
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int 21h
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jc error
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mov ah,3ch
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xor cx,cx
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mov dx,offset nameboot2
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int 21h
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jc error
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mov ah,40h
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mov cx,512
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mov dx,offset buffer
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int 21h
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jc error
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mov ah,09
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mov dx,offset ok
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int 21h
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ret
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error:
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mov ah,09
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mov dx,offset errormsg
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int 21h
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ret
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end start
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