Say Hello

{

bdos    equ    0005H    ; BDOS entry point
start:  mvi    c,9      ; BDOS function: output string
    lxi    d,msg$   ; address of msg
    call   bdos
    ret             ; return to CCP

msg$:   db    'Hello, world!$'
end     start

Oh, that's just me saying "Hello World" in assembler. There's a massive list of the program to begin programs over at Wikipedia.

}