genvar i; //即generate variable generate for(i=0; i<=SIZE-1; i=i+1) begin /* 代码 */ end endgenerate 1. 2. 3. 4. 5. 6. 7. 值得注意的是: for循环的实质:Verilog中的for循环起电路复制的作用 for循环一般写在testbench中做测试用,而不是写在module中。
generate生成语句可以动态的生成verilog代码,当对矢量中的多个位进行重复操作 时,或者当进行多个模块的实例引用的重复操作时,或者根据参数的定义来确定程序中是否应该包含某段Verilog代码的时候,使用生成语句能大大简化程序的编写过程。生成语句生成的实例范围,关键字generate-endgenerate用来指定该范围。生成实例可以是以下的...
5.1 generate-for循环 使用generate-for循环创建多个实例: module top ( input logic [3:0] a [0:3], b [0:3], output logic [3:0] sum [0:3] ); genvar i; generate for (i = 0; i < 4; i++) begin : adder_loop adder u_adder ( .a(a[i]), .b(b[i]), .sum(sum[i]) )...
sum(sum[i])); end end endgenerate endmodule 说明: - 外层generate-for生成NUM_ADDERS个加法器实例。 - 内层generate-if根据USE_FAST_ADDER选择加法器类型。 - 嵌套标签(如adder_loop和fast_adder_block)确保命名唯一。 注意: - 嵌套generate语句可能增加代码复杂性,需保持清晰的层次结构。 - 使用有意义的...
SystemVerilog added the ability to put the genvar inside the for loop. Verilog-2005 made the generate/endgenerate keywords optional. The compiler should be able to tell from the context whether the for-loop is a generate-for or a procedural-for. I would try removing them and seeing if you...
If I unrolled the generate block loop manually (which is very painful!), the simulator runs fine. I tried to instantiate a dummy SINE block outside generate loop to make config view pick it up (which it did), but I got the same error. ...
genvar i; generate for (i = 0; i < 4; i++) begin : loop xor xori ( .a(data[i*8 +: 8]), .b(parity[i]), .y(result[i]) ); end endgenerate 断言(Assertion) 用于在设计中嵌入检查点,以验证设计是否满足预期行为。 assert (a == b, "Error: a is not equal to b at time ...
You can use a generate for loop instead of foreach. genvar bit_number; generate for(bit_number=0;nit_number<?;bit_number=bit_number\+1) begin : if ( selector [ bit_number ] == 1'b1 ) assign destination [ bit_number ] = source_1 ; else assign destination [ bit_number ] = ...
• Array foreach loop • Special system functions for working with arrays • The $bits “sizeof” system function 5.1 Structures Design data often has logical groups of signals, such as all the control signals for a bus protocol, or all the signals used within a state controller. The ...
在SystemVerilog中,输出信息显示时间时,经常会在输出信息格式中指定“%t”格式符,一般情况下“%t”输出的格式都是固定的,但是这样固定的输出显示的时间可能有时会让用户看起来感觉比较诧异,例如下面的示例。