这段code什么意思呢? 起初: 1)我认为是wvalid = 0; 2)下面循环的任何一次为1,就把wvalid赋值成1; 3)结果就是一旦wvalid为1,那么就永远为1,不管循环了多少次。 4)但是仔细想想,怎么会有这么vagary的逻辑呢?一定不是这样的,百思不得骑姐啊!!! 5)只好综合一下了,看下图: 原来是把各个对应位作AND,然...
myAnd insAnd[3:0] (.in0 (a), .in1(b), .out©); 上述数组实例化语句的功能相当于 myAnd insAnd3 (.in0 (a[3]), .in1(b[3]), .out(c[3])); myAnd insAnd2 (.in0 (a[2]), .in1(b[2]), .out(c[2])); myAnd insAnd1 (.in0 (a[1]), .in1(b[1]), .out(c...
always, and, assign,begin,buf,bufif0,bufif1,case,casex,casez,cmos,deassign,default,defparam,disable,edge,else,end,endcase,endmodule,endfunction,endprimitive, endspecify, endtable, endtask, event, for, force, forever, fork, function,highz0, highz1, if,initial, inout, input,integer,join,large...
• XMR paths within Verilog source code • %m within a Verilog display statement • DPI access functions • VPI, and so on 这些API没有SystemC的概念,因此无法正确处理在HDL-SC联仿中top上的SystemC。 这些API会expose下面的内容: • 在HDL-SC联仿中环境中SystemC和Verilog/VHDL部件内部连接的...
// 初始化偶校验位为0 // 计算数据中1的个数 for (int i 0; i 8; i i + 1) begin parity_bit parity_bit ^ data_reg[i]; end end endtask // 在时序块中调用任务,并将结果存储到输出码字中 always @* begin generate_even_parity(data_in, codeword[7]); // 生成偶校验位 codeword[6:...
And for the actual test something like : //The actual test initial begin Hold_tb = 0; up_down_tb = 1; repeat (50) begin @(posedge clk); end up_down_tb = 1; repeat (50) begin @(posedge clk); end $finish(); end About the Code You have a section of what looks like it ...
1input[3:0] a,b;2output[3:0] c,d;3generate4genvari;56for(i=0; i <4; i=i+1)7begin: genExample8myAnd insAnd (.a(a[i]), .b(b[i]), .c(c[i]));9assignd[i] =a[i];10end11endgenerate 注意:利用循环生成语句生成的实例名称不能像数组例化那样用方括号表示,否则会报错。那么...
I'm writing some Verilog code for synthesis. My block has a reg type A, that has to have always the same value. In order not to have syntax errors, I wrote the following: module dig_block ( OUT, OUTN, in , OUTlevelL, mode_1, mode_0 , rst); ...
code for part 1 4bitUDC.sv: instructions (only do experiment 2 please): Show transcribed image text There are 2 steps to solve this one. Transcribed image text: module 4 bitupdown_counter( input logic Clk, reset, UpDown, //1 for Up counte...
Verilog-code projects 同样，这也是一个开源的Verilog学习网站，常见的经典硬件电路设计这里都有，摘一下...