Yes, it's possible to override existing constraints in SystemVerilog using inline constraints or inheritance. class ABC; rand bit [3:0] data; constraint c_data { data inside {[5:10]}; } endclass module tb; init
65. What are the constraints? Is all constraints are bidirectional? 约束是什么?所有的约束都是双向的吗? 约束是用于限制随机变量生成的条件。它们可以确保生成的随机值满足某些特定的要求。并不是所有的约束都是双向的;有些约束是单向的,只对特定变量起作用。双向约束意味着两个变量之间的关系是相互依赖的,但大...
You can write constraints in a variety of ways. Constraints should not contradict each other, else randomization will fail at run-time. classmyPacket;randbit[7:0]mode;randcbit[7:0]key;intlow,high;constraintc_simple{mode>2;key==3;}// This won't work, because it contradicts c_simple -...
Random Constraints Interprocess Communication SystemVerilog Clocking SystemVerilog Program Block SystemVerilog Assertions SystemVerilog Hierarchy SystemVerilog Interfaces Functional Coverage System Tasks And Functions Direct Programming Interface AOP Tutorial VMM Tutorial Web www.asic-world.com Copy...
SystemVerilog Tutorial for beginners with eda playground link to example with easily understandable examples codes Arrays Classes constraints operators cast