hello.z80

#include    "ti83plus.inc"
#define     progStart   $9D95
.org        progStart-2
.db         $BB,$6D
    ld  HL, 0
    ld  (CurRow),   HL
    ld  HL, Message
    bcall(_PutS) ; Displays the string
    bcall(_NewLine)
    ret
Message:
.db         "Hello world!",0