set bitfield to union header.mark
set bitfield to union header.mark

omasanori/picrin,koba-e964/picrin,ktakashi/picrin,ktakashi/picrin,omasanori/picrin,ktakashi/picrin,picrin-scheme/picrin,leavesbnw/picrin,koba-e964/picrin,leavesbnw/picrin,picrin-scheme/picrin,leavesbnw/picrin,koba-e964/picrin,dcurrie/picrin,dcurrie/picrin