1functionbit uvm_reg::predict (uvm_reg_data_t value,2uvm_reg_byte_en_t be = -1,3uvm_predict_e kind =UVM_PREDICT_DIRECT,4uvm_path_e path =UVM_FRONTDOOR,5uvm_reg_map map =null,6stringfname ="",7intlineno =0);8uvm_reg_item rw =new;9rw.value[0] =value;10rw.path =path;...
1functionbit uvm_reg::predict (uvm_reg_data_t value,2uvm_reg_byte_en_t be = -1,3uvm_predict_e kind =UVM_PREDICT_DIRECT,4uvm_path_e path =UVM_FRONTDOOR,5uvm_reg_map map =null,6stringfname ="",7intlineno =0);8uvm_reg_item rw =new;9rw.value[0] =value;10rw.path =path;...
作者分析了目前uvm-reg-model的局限性,和一些优化性能的方法。 需要自定义解决问题的场景 write-to-reset 寄存器写入时会触发reset行为。使用自定义access policy来解决。 自定义wres_reg_field重载uvm_reg_field中的post_write。 作者还提供了post_write、post_predict的callback实现方式。 Locked/Protected Field 两...
11:transaction的产生被封装在一个宏中,其灵活性就会变差,所以为了增加uvm_do系列宏的功能,UVM提供了三个接口,pre_do,mid_do与post_do。其中pre_do是一个任务,在start_item中被调用,它是start_item返回前执行的最后一行代码,在它执行完毕后才对transaction进行随机化,mid_do是一个函数,位于finish_item的开始,...
predict virtual function bit predict (uvm_reg_data_tvalue, uvm_reg_byte_en_tbe=-1, uvm_predict_ekind=UVM_PREDICT_DIRECT, uvm_path_epath=UVM_FRONTDOOR, uvm_reg_mapmap=null, stringfname="", intlineno=0) Update the mirrored value for this register. ...
predictUpdate the mirrored value for this field. Callbacks pre_writeCalled before field write. post_writeCalled after field write. pre_readCalled before field read. post_readCalled after field read. value rand uvm_reg_data_t value Mirrored field value. This value can be sampled in a functional...
实例丰富,步步清晰引导读者掌握UVM的精髓和实用技巧。 本书脱胎于网络上广为流传的《UVM1.1应用指南及源码分析》,内容愈加炉火纯青。 内容简介: 作者简介: 张强,资深验证工程师,毕业于浙江大学超大规模集成电路研究所,研究方向为模拟及数模混合集成电路,主要从事模拟电源管理芯片、运算放大器及应用于高性能CPU的SRAM的研...
(uvm_sequencer_base sequencer, uvm_sequence_base parent_sequence null, int this_priority = -1, bit call_pre_post = 1) 参数1:指明sequencer的句柄; 参数2:如果是顶层的sequence,则用null 参数3:该sequence的parent_sequence(若有)继承其优先值 参数4:pre_body() 和 post_body() 会再body() task...
TLM 1 UVM supports ports (TLM 1) and sockets (TLM 2) as transaction-level interfaces. This post will explain TLM 1. TLM 1 seems daunting as it has many ports, exports, and “imp”s, but once ...UVM通信篇之五:TLM2通信 本文转自:http://www.eetop.cn/blog/html/28/1561828-5940...
Systemverilog中已经提供的Callback函数pre_randomize,post_randomize.对于UVM和VIP来说,其他的CallBack函数都是自己程序的开发者事先 留下的hook. Callback的实现: 1)首先直接从component扩展出新的类来实现pre_do等function不可取.因为compUVM中的regmodel建模(二) UVM的寄存器模型,对一个寄存器bit中有两种数值,...