;C 76543210
                                    ;x hgfedcba
        MOV     C,Acc.1             ;b hgfedcba
        RLC     A                   ;h gfedcbab
        MOV     Acc.2,C             ;h gfedchab
        MOV     C,Acc.3             ;c gfedchab
        RLC     A                   ;g fedchabc
        MOV     Acc.4,C             ;g fedghabc
        MOV     C,Acc.5             ;d fedghabc
        RLC     A                   ;f edghabcd
        MOV     Acc.6,C             ;f efghabcd
        SWAP    A                   ;f abcdefgh