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Last change
on this file since 5 was 3, checked in by Mattia Monga, 14 years ago |
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Copyright aggiornato
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File size:
495 bytes
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| [3] | 1 | ;Copyright (C) 2008-2011 by Mattia Monga <mattia.monga@unimi.it>
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| [2] | 2 | bits 16 ; 16 bit real mode
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| 3 | org 0x7C00 ; origine indirizzo 0000:7C00
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| 4 |
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| 5 | start:
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| 6 | mov ax, 0xb800 ; text video memory
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| 7 | mov ds, ax ; ds non accessibile direttamente
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| 8 | mov bx, 10
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| 9 | write:
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| 10 | cmp bx, 0
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| 11 | jz end
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| 12 | mov byte [ds:bx], 'm' ; indirizzamento relativo a ds
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| 13 | mov byte [ds:bx+1], 0x0F ; attrib = white on black
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| 14 | sub bx, 2
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| 15 | jmp write
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| 16 | end:
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| 17 | hlt
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| 18 |
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| 19 | times 510-($-$$) db 0 ; 0-padding
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| 20 | dw 0xAA55
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