总结:保证if-else对应齐全;case必写default。 2.2.4 if-else语句和case语句的区别 对于这个的讨论,本人认为是以前由于综合工具落后,导致有区别,但是随着综合工具的更新,他们之间的区别越来越小,甚至有人可以用if-else综合出无优先级的多路选择器,用case综合出有优先级的多路选择器。 “if-else的逻辑判别是有优先级...
I want to make ELU function in the verilog-A code, but it shows syntax error continuously. But the Verilog-A document says that this is the correct syntax, so I would like to ask you what should I fix. module myVerilogAmodel(d, g, s); //...
Learn Verilog ! 1. Introduction What is Verilog? Introduction to Verilog ASIC Design Flow Design Abstraction Layers Examples Verilog Examples 2. Data Types Verilog Syntax Verilog Data types Verilog Scalar/Vector Verilog Arrays Verilog Net Types Verilog Strength 3. Building Blocks Verilog Module Verilog...
The general syntax of an if statement is as follows if [boolean-expr] begin [procedural statement] ; [procedural statement] ; end else begin [procedural statement] ; [procedural statement]; end The boolean-expr is evaluated and if it is true, the list of the procedural statements between ...
Syntax if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (...
Syntax if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (...
The SystemVerilog code snippet below shows the basic syntax for the if statement. if (<expression1>) begin // Code to execute end else if (<expression2>) begin // Code to execute end else begin // Code to execute end We can exclude the else and else if branches from the statement ...
Syntax if expression statements elseif expression statements else statements end Description if expression, statements, end evaluates an expression, and executes a group of statements when the expression is true. An expression is true when its result is nonempty and contains only nonzero elements (...
always内部出现多个if时，需要begin end来包住。另外，模块结尾需要endmodule endmodule
首先说明一点，你的问题和你代码出错不是同一个问题。if else作为选择可以出现在过程赋值中，例如always initial 你这里的出错应该是敏感列表不全，可以采用2001语法always @ (*) 代替 另外组合逻辑中不要采用非阻塞赋值<= BR,Timothy