; Name split test

global  _main
extern  _printf
extern  _gets
extern  _system

section .data
    pause_str   db  'pause', 0
    cls_str     db  'cls', 0
    out_firstname   db  'Your first name is: %s', 10, 0
    out_lastname    db  'Your last name is: %s', 10, 0
    prompt      db  'What is your first and last name?', 10, '> ', 0

section .bss
    input_buffer    resb 50 ; char input_buffer[50];
    firstname   resd 1  ; char *firstname;
    lastname    resd 1  ; char *lastname;

section .text

_splitNames:
    mov ebx, [esp + 4];
    loopstart:
        cmp byte [ebx], 0
        je  loopend
        cmp byte [ebx], ' '
        jne notspace
            mov byte [ebx], 0
            inc ebx
            mov eax, ebx
            mov ebx, dword [esp + 12]
            mov dword [ebx], eax
            jmp loopend
        notspace:
        inc ebx
        jmp loopstart
    loopend:
    mov eax, dword [esp + 4]
    mov ebx, dword [esp + 8]
    mov dword [ebx], eax
    ret


_main:
    push    prompt
    call    _printf
    add esp, 4

    push    input_buffer
    call    _gets
    add esp, 4

    push    lastname
    push    firstname
    push    input_buffer
    call    _splitNames
    add esp, 12

    push    dword [firstname]
    push    out_firstname
    call    _printf
    add esp, 8

    push    dword [lastname]
    push    out_lastname
    call    _printf
    add esp, 8

    push    pause_str
    call    _system
    add esp, 4

    ret