$ cat bye.asm cpu 8086 org 256 start: mov dx, message mov ah, 09h int 21h mov ax, 4C00h int 21h message: db "Goodbye world!",13,10,36 $ nasm bye.asm -o bye.com -l bye.lst $ cat bye.lst 1 2 cpu 8086 3 org 256 4 start: 5 00000000 BA[0C00] mov dx, message 6 00000003 B409 mov ah, 09h 7 00000005 CD21 int 21h 8 00000007 B8004C mov ax, 4C00h 9 0000000A CD21 int 21h 10 11 message: 12 0000000C 476F6F646279652077- db "Goodbye world!",13,10,36 12 00000015 6F726C64210D0A24 $