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jarrodhroberson/helloworld.asm

Created May 21, 2023 11:29
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Hello World! C= 64
Raw
helloworld.asm
; program start
Start
jsr $FF81 ; CINT (clear screen)
sei ; turn off interrupts
ldy #0
sty $d020 ; reset border color
Loop
lda Message,y ; load message byte
beq EOM ; 0 = end of string
clc
adc #$c0 ; + 192
sta $400+41,y ; store to screen
iny
bne Loop ; next character
EOM
Message
byte "HELLO`WORLDa"
byte 0
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