mess

.686
.model flat
extern _ExitProcess@4 : PROC
extern _MessageBoxA@16 : PROC
extern _MessageBoxW@16 : PROC
public _main

.data
tytul_Unicode dw 'T','e','k','s','t',' ','w',' '
              dw 'f','o','r','m','a','c','i','e',' '
              dw 'U','T','F','-','1','6', 0
tekst_Unicode dw 'K','a',017Ch,'d','y',' ','z','n','a','k',' '
              dw 'z','a','j','m','u','j','e',' '
              dw '1','6',' ','b','i','t',00F3h,'w', 0

tytul_Win1250 db 'Tekst w standardzie Windows 1250', 0
tekst_Win1250 db 'Ka',0BFh,'dy znak zajmuje 8 bit',0F3h,'w', 0

.code
_main PROC
    push 0
    push OFFSET tytul_Win1250
    push OFFSET tekst_Win1250
    push 0
    call _MessageBoxA@16

    push 0
    push OFFSET tytul_Unicode
    push OFFSET tekst_Unicode
    push 0
    call _MessageBoxW@16

    push 0
    call _ExitProcess@4

_main ENDP

END