mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-11-22 14:33:51 +00:00
34 lines
564 B
NASM
34 lines
564 B
NASM
|
|
; Hello World example
|
|
|
|
; ROM routine for character output
|
|
CHPUT: equ $00A2
|
|
|
|
org 0x4000
|
|
|
|
; MSX cartridge header @ 0x4000 - 0x400f
|
|
dw 0x4241
|
|
dw Init
|
|
dw Init
|
|
dw 0
|
|
dw 0
|
|
dw 0
|
|
dw 0
|
|
dw 0
|
|
|
|
; initialize and print message
|
|
Init:
|
|
ld hl, msg
|
|
call puts
|
|
jp Init ; loop forever
|
|
puts: ; print 0-terminated string in HL
|
|
ld a,(hl)
|
|
or a
|
|
ret z
|
|
call CHPUT ; displays one character in A
|
|
inc hl
|
|
jr puts
|
|
|
|
; ASCII message + CR LF
|
|
msg: defm "Hello, world!",13,10,0
|