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高位合成言語アセンブラを作る。 その16

Last updated at Posted at 2020-12-06

概要

高位合成言語アセンブラを作る。
練習問題、フリップフロップ、やってみた。

コードを書く。

make 4
in 0 1
nor 0 2 3
nor 1 3 2
out 2 3

コンパイル結果

module x(input a, input b, output c, output d);
    assign d = ~(a | c);
    assign c = ~(b | d);
endmodule

module testbench;
    reg a, b;
    x u(.a(a), .b(b), .c(c), .d(d));
    initial
    begin
        $display("a b c d ");
        $monitor("%b %b %b %b ", a, b, c, d);
        a = 0; b = 0; #10;
        a = 0; b = 1; #10;
        a = 1; b = 0; #10;
        a = 1; b = 1; #10;
        $finish;
    end
endmodule

成果物

真理値表で確認する。

無題.jpg

成果物

回路図で確認する。

動作せず。

成果物

実行結果


a b c d
0 0 x x
0 1 0 1
0 0 0 1
1 0 1 0
0 0 1 0


以上。

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