Commander X16 - Vera display text program

vera.asm

; Commander X16 - Vera display text program
; acme -f cbm --cpu 65c02 -o vera.prg vera.asm && x16emu -prg vera.prg -run

CHROUT=$FFD2
VERA_ADDR_L=$9F20
VERA_ADDR_M=$9F21
VERA_ADDR_H=$9F22
VERA_DATA0=$9F23

*=$0801
!byte $0B, $08, $01, $00, $9E, $32, $30, $36, $31, $00, $00, $00

start:
    ; Clear screen
    lda #$93
    jsr CHROUT

    ; Print centered colored string
    lda #%00010001 ; Increment 1 byte
    sta VERA_ADDR_H
    lda #$b0
    sta VERA_ADDR_M
    lda #68
    sta VERA_ADDR_L

    ldy #0
.repeat:
    lda message, y
    beq .done
    sta VERA_DATA0
    lda #$2f ; Color
    sta VERA_DATA0
    iny
    bra .repeat
.done:
    rts

; https://cx16.dk/veratext/
;              H   E   L   L   O   ,       W   O   R   L   D   !
message !byte $08,$05,$0C,$0C,$0F,$2C,$20,$17,$0F,$12,$0C,$04,$21,$00