Hello, World! в Assembler

        move.l  #DOS
        move.l  4.w,a6
        jsr     -$0198(a6)      ;OldOpenLibrary
        move.l  d0,a6
        beq.s   .Out
        move.l  #HelloWorld,d1

A)      moveq   #13,d2
        jsr     -$03AE(a6)      ;WriteChars

B)      jsr     -$03B4          ;PutStr

        move.l  a6,a1
        move.l  4.w,a6
        jsr     -$019E(a6)      ;CloseLibrary
.Out    rts

DOS          dc.b    'dos.library',0
HelloWorld   dc.b    'Hello World!',$A,0