decode.tdf

verilog编写实用多功能电子表

TITLE "Complex AHDL decoder";

SUBDESIGN decode
(
  a, b, c, d, clock		: INPUT;
  out1, out2, out1l		: OUTPUT;
)

VARIABLE
    out1d : DFF;

BEGIN
  out1d.clk = clock;
  out1d = out1;
  out1l = out1d;
  out1 = ((a == VCC) & ((b == GND) & (c == VCC) # d == GND));
  out2 = ((a == VCC) & ((b == a) # (d == a)));
END;