; multi-segment executable file template.

data segment
    ; add your data here!
    sLogin  db  "User: $"
    sPassw  db  "Pass: $"
    dLogin  db  5 dup(0)
    dPassw  db  8 dup(0)
ends

stack segment
    dw   128  dup(0)
ends

code segment
start:
; set segment registers:
    mov ax, data
    mov ds, ax
    mov es, ax

    call INSUSER
    call INSPW


    lea dx, dLogin
    call STAMPMSG

    ; wait for any key....
    mov ah, 1
    int 21h

    mov ax, 4c00h ; exit to operating system.
    int 21h
ends

INSUSER proc
    xor bx, bx
    lea dx, sLogin
    mov ah, 9
    int 21h
    mov ah, 1
LOC_READCHAR:
    int 21h
    mov [dLogin+bx], al
    inc bx
    cmp bx, 5
    jne LOC_READCHAR
    ret
INSUSER endp

INSPW proc
    ;
    ret
INSPW endp

STAMPMSG proc
    ; Lista parametri:
    ; cx numero massimo di caratteri da stampare.
    ;    Se viene raggiunto il tappo 00h, la stampa
    ;    si conclude prima della fine di bx.
    ; dx indirizzo stringa da stampare

    ;push ax
    ;push bx
    xor bx, bx
    mov ah, 2
    mov si, dx
    mov cx,5


LOC_STAMPMSG_WRITECHAR:
    mov dl, [si+bx]

    int 21h
    inc bx
    loop LOC_STAMPMSG_WRITECHAR
LOC_STAMPMSG_END:
    ;pop bx
    ;pop ax
    ret
STAMPMSG endp

end start ; set entry point and stop the assembler.