mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-11-22 14:33:51 +00:00
32 lines
599 B
NASM
32 lines
599 B
NASM
|
|
; from https://www.chibiakumas.com/z80/helloworld.php#LessonH1
|
|
|
|
PrintChar = 0xbb5a
|
|
WaitChar = 0xbb06
|
|
|
|
org 0x4000
|
|
|
|
Start:
|
|
ld hl,Message ;Address of string
|
|
call PrintString ;Show String to screen
|
|
call WaitChar
|
|
ret ;Finished Hello World
|
|
|
|
PrintString:
|
|
ld a,(hl) ;Print a '255' terminated string
|
|
cp 255
|
|
ret z
|
|
inc hl
|
|
call PrintChar
|
|
jr PrintString
|
|
|
|
Message:
|
|
db 'Hello World! Press a key...',255
|
|
|
|
NewLine:
|
|
ld a,13 ;Carriage return
|
|
call PrintChar
|
|
ld a,10 ;Line Feed
|
|
call PrintChar
|
|
ret
|