( bitwise rotation ops have a similar sig )
( r -- )
: OProt
    CREATE C,
    DOES>
    0xcb A,
    C@              ( r op )
    OR A,
;
0x10 OProt RLr,
0x00 OProt RLCr,
0x18 OProt RRr,
0x08 OProt RRCr,
0x20 OProt SLAr,
0x38 OProt SRLr,

