.file [name="out.prg", segments="Default,STD_LIBRARY"]
.segmentdef STD_LIBRARY [start=$3000]

.var setColors_addr=null;
.macro setColors() {
    .if (setColors_addr==null) {
        .segment STD_LIBRARY
        .eval setColors_addr=*
        stx $d020
        sty $d021
        rts
        .segment Default
    }
    jsr setColors_addr
}