1 Case和if的功能是完全一致的 当条件不互斥的时候,case和if会综合出带优先级的电路,对于case来说,如果 condition1 为真,则执行 true_statement1 ; 如果 condition1 为假,condition2 为真,则执行 true_statement2;依次类推。如果各个 condition 都不为真,则执行 default_stat
To better demonstrate the way we use the case statement in SystemVerilog, let’s consider a basic example. For this example we will look at a simple four to one multiplexor circuit. We frequently use the case statement to model large multiplexors in SystemVerilog as it produces more readable...
System Verilog中的case语句有两种形式：unique case和parallel case。其中，unique case用于处理互斥的情况，而parallel case用于并行的情况。1. unique case unique case语句的语法结构如下：```unique case (expression)value1: statement1;value2: statement2;default: default_statement;endcase ```在unique case...
systemverilog case(expression) constant1: statement; constant2: statement; . . . default: statement; endcase 在上述代码中,关键字case表示Case语句的开始,expression是一个表达式,用于确定要执行的分支。每个分支以一个常数开头,后面跟着一个冒号和一个语句。可以有任意数量的分支,并且可以使用default关键字来指定...
A SystemVerilog case statement checks whether an expression matches one of a number of expressions and branches appropriately. The behavior is the same as in Verilog. Click here to learn about Verilog case statements ! unique,unique0 case All case stat
SystemVerilog是一种用于硬件描述和验证的高级编程语言,广泛应用于电子设计自动化(EDA)领域。case语句是SystemVerilog中的一种控制流结构,允许根据表达式的值选择执行多个分支中的一个。 SystemVerilog case 语句 基本语法 case (expression) pattern1: statement_block1; pattern2: statement_block2; // 可以有多个...
The case statement checks if the given expression matches one of the other expressions in the list and branches accordingly. It is typically used to implement a multiplexer. The if-else construct may not be suitable if there are many conditions to be che
The Verilogcasestatement is a convenient structure to code various logic like decoders, encoders, onehot state machines. Verilog defines three versions of the case statement:case,casez,casex. Not only is it easy to confuse them, but there are subtleties between them that can trip up even expe...
SV (SystemVerilog) 是用于硬件描述语言的一个扩展语言，它通过添加了一些软件编程语言的特性来增强了硬件描述语言的功能。其中，一种关键特性是 case 语句。case 语句是一种多路分支语句，常常用于状态机、寻址和数据宽度转换等应用场景。本文将介绍 SV 中的 case 语句。1. 基本语法 SV 中的 case 语句的基本语法...
end2.多路分支语句//与条件语句相同注意在组合逻辑中避免生成Latchcase(case_var)condition1:statement1;...