62 lines
989 B
NASM
62 lines
989 B
NASM
; multi-segment executable file template.
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data segment
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; add your data here!
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pkey db "prss any key...$"
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vet1 db 03h, 07h, 0Ah, 02h
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num1 db 05h
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ris db 00h
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ends
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stack segment
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dw 128 dup(0)
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ends
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code segment
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start:
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; set segment registers:
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mov ax, data
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mov ds, ax
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mov es, ax
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mov ax, 00h
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mov bx, 00h
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mov al, num1
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inizio-ciclo:
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dec al
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cmp al, 0h
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je fine-ciclo
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add bl, vet1[si]
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inc si
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jmp inizio-ciclo
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fine-ciclo:
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cmp bl, 21h
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jg sub5
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add bl, 0Ah
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jmp fine
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sub5:
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sub bl, 05h
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jmp fine
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fine:
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mov ris, bl
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lea dx, pkey
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mov ah, 9
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int 21h ; output string at ds:dx
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; wait for any key....
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mov ah, 1
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int 21h
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mov ax, 4c00h ; exit to operating system.
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int 21h
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ends
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end start ; set entry point and stop the assembler.
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