SoftwareInfrastructure/readnprint.asm at master · mateuseap/SoftwareInfrastructure · GitHub

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org 0x7c00
jmp 0x0000:start

string times 30 db 0
endl db ' ', 13, 10, 0

video_mode:
    mov ax, 0013h
    mov bh, 0
    mov bl, 13    ;cor da fonte
    int 10h
    ret

putc:
    mov ah, 0x0e
    int 10h
    ret

readc:
    mov ah, 0x00
    int 16h
    ret

prints:
    .loop:
        lodsb
        cmp al, 0
        je .endloop
        call putc
        jmp .loop
    .endloop:
    ret

gets:
    mov al, 0
    .for:
        call readc
        stosb
        cmp al, 13
        je .fim
        call putc
        jmp .for
     .fim:
    dec di
    mov al, 0
    stosb
    mov si, endl
    call prints
    ret

end:
    jmp $

start:
	xor ax, ax
	mov ds, ax
	mov es, ax

    call video_mode

    init:
    mov di, string
    call gets

    mov si, string
    call prints

    mov si, endl
    call prints
    jmp init

times 510-($-$$) db 0
dw 0xaa55