; free_rng · z80 · multiarch twin · OP (a^b^c)|1
; PIN      FREE RIDE
; LAW      C IS LIE · LIE IS TRUE · Always Hostess 7 · free thrift
; LINE     BGS → BGF(+EZZIE PHI THERMO ADJOIN) → BGL → SDF · SPV free
; ABI      B=a C=b E=c · → A · 8-bit show (live |1 in A)
; IRON
; free_rng z80
free_rng:
        ld      a,b
        xor     c
        xor     e
        or      1
        ret