bcd7.tdf

vhd语言

SUBDESIGN BCD7
(
  IN[3..0]:INPUT;
  OUT[6..0]:OUTPUT;
)
VARIABLE A,B,C,D,E,F,G:NODE;
BEGIN
    TABLE
    IN[3..0]=>A,B,C,D,E,F,G;
    0=>1,1,1,1,1,1,0;
    1=>0,1,1,0,0,0,0;
    2=>1,1,0,1,1,0,1;
    3=>1,1,1,1,0,0,1;
    4=>0,1,1,0,0,1,1;
    5=>1,0,1,1,0,1,1;
    6=>1,0,1,1,1,1,1;
    7=>1,1,1,0,0,0,0;
    8=>1,1,1,1,1,1,1;
    9=>1,1,1,1,0,1,1;
    10=>1,1,1,0,1,1,1;
    11=>0,0,1,1,1,1,1;
    12=>1,0,0,1,1,1,0;
    13=>0,1,1,1,1,0,1;
    14=>1,0,0,1,1,1,1;
    15=>1,0,0,0,1,1,1;
  END TABLE;
  OUT[]=(A,B,C,D,E,F,G);
END;