unique case (1'b1) // inverse case statement state[0]: next1 = SET; state[1]: next2 = GO; // assign to different variable state[2]: next1 = READY; endcase 在SystemVerilog中使用恰当的priority,unique0或unique语句,而不是full_case或parallel_case指示。但要注意,应当谨慎使用这些决策修饰符...
SystemVerilog Case Statement We use the SystemVerilog case statement to select a block of code to execute based on the value of a given signal in our design. When we write a case statement in SystemVerilog we specify an input signal to monitor and evaluate. The value of this signal is th...
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...
unique0 case: similar to unique case, but it does not report error if no items match the expression. Similarly, there are priority and unique if-else-if statement. Casez Casex Case Addition: Reverse Case Statement The case(1′b1) in Verilog is sometimes known as the reverse case statement...
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
第一部分:Case语句概述 Case语句提供了一种基于条件值的简洁和清晰的编程方式。它可以方便地处理大量的条件和操作,从而减少代码量和增加可读性。Case语句的核心结构如下所示: systemverilog case(expression) constant1: statement; constant2: statement; . . . default: statement; endcase 在上述代码中,关键字case...
default:statement_block endcase 1. 2. 3. 4. 5. 6. 2.循环语句 (1)for循环 基本格式: for(initializing_expression;terminating_expression;loop_increment_expression) begin ... end 1. 2. 3. 4. 在Verilog中,用来控制for循环的变量必须在循环体之前声明。如果两个或多个并行程序中的循环使用相同的循环...
syn keyword systemverilogStatementbytecasecasex casez cell chandleclassclocking syn keyword systemverilogStatement cmos configconstconstraint contextcontinuecover syn keyword systemverilogStatement covergroup coverpoint cross deassigndefaultsyn keyword systemverilogStatement defparam design disable distdoedgeelseend ...
第一章 System Verilog过程块、任务和函数 1.1. verilog通用目的always过程块(procedural block)(可综合) always过程块的综合指导方针: 组合逻辑 1.关键词always后必须跟一个边沿敏感的事件控制(@符号) 2.事件控制的敏感表中不能包含posedge和negedge限定词 ...
在·Verilog中有两种可综合的条件结构: if(expression) Statement block else if(expression) Statement block else Statement block case(expression) case item : case action ... (default : case action) endcase 1. 2. 3. 4. 5. 6. 7. 8. ...