因此,assign语句满足上面的要去,因为无论何时右侧的任何输入发生变化,输出o都会更新。 // the module takes four inputs and performs a boolean// operation and assigns output to o.// the combinational logic is realized using assign statementmodulecombo(inputa,b,c,d,outputo);assigno=~((a&b)|c^...
Note that 'a' and 'c' // gets updated at the end of current timestep #5 a <= 1; c <= 1; // Intra-assignment delay: First execute the statement // then wait for 5 time units and then assign the evaluated // value to q q <= #5 a & b | c; #20; end endmodule 仿真...
// Inter-assignment delay: Wait for #5 time units // and then assign a and c to 1. Note that 'a' and 'c' // gets updated at the end of current timestep #5 a <= 1; c <= 1; // Intra-assignment delay: First execute the statement // then wait for 5 time units and then ...
#delay_time statement; 示例 initial begin #10;// Wait for 10 time unitsa=1;// Assign value to 'a' after the delay#5;// Wait for an additional 5 time unitsb=0;// Assign value to 'b' after the second delayend 在这个例子中,仿真在为 a 赋值之前等待 10 个时间单位,然后在为 b 赋...
Wait for #5 time units// and then assign a and c to 1. Note that 'a' and 'c'// gets updated at the end of current timestep#5a<=1;c<=1;// Intra-assignment delay: First execute the statement// then wait for 5 time units and then assign the evaluated// value to qq<=#5a&...
assign语句常用于组合逻辑设计,如下的电路图: 使用Verilog描述为: // This module takes four inputs and performs a boolean // operation and assigns output to o. The combinational // logic is realized using assign statement. module combo ( input a, b, c, d, ...
module time_delay_module(input ai, bi,output so_lose, so_get, so_normal);assign #20 so_lose = ai & bi ;assign #5 so_get = ai & bi ;assign so_normal = ai & bi ;endmodule testbench 参考如下: `timescale 1ns/1nsmodule test ;reg ai, bi ;wire so_lose, so_get, so_normal ...
Nonblocking assign updates event queue中LHS expression是随机的。 The nonblocking assign updates event queue is where updates to the LHS expression of nonblocking assignments are scheduled. The RHS expression is evaluated in random order at the beginning of a simulation time step along with the other...
Nonblocking assign updates event queue中LHS expression是随机的。 The nonblocking assign updates event queue is where updates to the LHS expression of nonblocking assignments are scheduled. The RHS expression is evaluated in random order at the beginning of a simulation time step along with the other...
1.下载后先运行X-HDL-4.2.1-Setup.exe文件，选择安装路径，注意路径中不要有中文。 2.运行crack_...