运行程序,我们会得到: always @(/*AS*/aorborsel)begin if (sel) z = a; else z =b; end 添加灵敏度列表的地方。然后用户可以编辑这段代码来进行RTL更改: always @(/*AS*/aorborsel)begin if (sel) z = a; else z =s2?c:d; end 然后重新运行程序,得到正确的灵敏度列表: always @(/*AS*/...
v3 = 2'b11;//v1 is not assigned end else//default赋值 begin v1 = 2'b00; v2 = 2'b00; v3 = 2'b00; end (2)CASE语句 (a)所有的case语句都应该有一个default语句,避免产生Latch (b)(建议)不要使用casex、casez语句,综合工具不支持 循环语句 (1)forever语句 (2)repeat语句 (3)while语句 ...
14initial $display("nest_two is not defined");15 `endif 16 `else 17initial $display("nest_one is not defined");18 `endif 19 `else 20initial $display("wow is not defined");21 `ifdef second_nest 22initial $display("second_nest is defined");23 `else 24initial $display...
最常见的情况就是在写的Testbench中，一般来说，我们首先会创建一个数据包packet类，然后分别在generator...
DVT-20605 UVM Runtime Elaboration: Collapse multiple threads of the same kind into a single threadDVT-20688 Semantic checks: Implicit signal not declared in `included module fragment even when a default nettype is definedDVT-20727 Elaboration: Global scope constant elaborated in wrong library in a...
45、ng any constant strings as format specifiersfor $swrite. In V2K, all output format specifications are consistentand produce the same result independent of whether the target is a string,file, or standard output.13) Fileio $ferror only returns a status. V2k $ferror takes asecond paramete...
*/ always @ (oneIn or zeroIn or state_curr or pattern) begin /* If either a one or zero has been entered, take action */ if(oneIn | zeroIn) begin case(state_curr) START: /* Initial state */ begin ...
VHDL 定义的保留字(或称为关键字)不能作为短标示符.VHDL 中定义的保留字有: abs access after alias and architecture array assert begin block body buffer case component configuration constantdis downto else elsif end exit file for function genetic group guarded if in inertial inout is library linkage...
对处在 power-down domain 并且直接和 always-on domain 相连接的 tie-high 或者 tie-low constant,不使能 corruption 功能;默认不 使用该功能; ④-lps_enum_rand_corrupt:对于用户定义的 enum 类型数据,在电源关断后, 随机从枚举列表中选择一个值作为变量值;和该命令相类似的还有 -lps_enum_right, -lps_imp...
Verilog?convention of treating any constant strings as format specifiers for $swrite.? In V2K, all output format specifications are consistent and produce the same result independent of whether the target is a string, file, or standard output. 13) Fileio $ferror only returns a status.? V2k...