SystemVerilog constraint randomization is a powerful methodology for generating realistic and diverse test scenarios in the realm of hardware design verification. However, like any complex methodology, it can s
This is another pretty useful construct and technique supported in SystemVerilog. Array reduction methods can produce a single value from an unpacked array of integral values. This can be used within a constraint to allow the expression to be considered during randomization. For example, consider th...
Reverse Gear: Re-imagining Randomization using the VCS Constraint SolverSince the constraint solver is so powerful, it is interesting to use it in reverse gear. Due to a SystemVerilog feature, it is possible to use it as a versatile checking engine. E.g. after monitoring a transaction, you...
此外,SystemVerilog还提供了constraint_mode ( ) 和random_mode ( ) 这两个方法来在过程代码中控制随机化,前者用于临时开启或关闭一个约束,而后者则用于临时开启或关闭某个变量的随机化。 The constraint_mode() and the random_mode() methods are used to control the randomization. constraint_mode() is us...