: SDC$
    10 0 DO _idle DROP LOOP
    0 ( dummy ) 10 0 DO  ( r )
        DROP 0x40 0 0 SDCMDR1  ( CMD0 )
        DUP 0x01 = IF LEAVE THEN
    LOOP 0x01 = NOT IF _err THEN
    0x48 0 0x1aa ( CMD8 ) SDCMDR7 ( r arg1 arg2 )
    0x1aa = NOT IF _err THEN      ( arg2 check )
    0 = NOT IF _err THEN          ( arg1 check )
    0x01 = NOT IF _err THEN       ( r check )
    BEGIN
        0x77 0 0 SDCMDR1  ( CMD55 )
        0x01 = NOT IF _err THEN
        0x69 0x4000 0x0000 SDCMDR1  ( CMD41 )
        DUP 0x01 > IF _err THEN
    NOT UNTIL ; ( out of idle mode, success! )