Question

这段代码怎么说？我如何解释其电路？

module add(input logic clock, output logic[7:0] f);
    logic[7:0] a, b, c;
    always_ff @(posedge clock)
    begin
    a <= b + c;
    b = c + a;
    c = a + b;
    end
    assign f = c;
    endmodule

Answer 1

您应将此代码解释为

module add(input logic clock, output logic[7:0] f);
  logic[7:0] a, b;
  always_ff @(posedge clock)
    a <= b + f;
  always_ff @(posedge clock)
    b <= f + a;
  always_ff @(posedge clock)
    f <= a + b;
 endmodule

从逻辑上讲，这与您编写的内容等效，但是对于在f上对输出posedge clock进行采样的任何代码，都可以提供可预测的仿真结果

该代码的等效硬件电路是什么？

1 个答案: