function void post_trigger(uvm_event e, uvm_object data = null); `uvm_info("EPOSTRIG", $sformatf("after trigger event %s", e.get_name()), UVM_LOW) endfunction endclass class comp1 extends uvm_component; uvm_event e1; `uvm_component_utils(comp1) function new(string name, uvm_com...
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...
classtrig_reg_bd_access_cbsextendsuvm_reg_cbs;`uvm_object_utils(trig_reg_bd_access_cbs)uvm_event bd_access_e;functionnew(stringname="trigger_reg_field_cbs");super.new(name);endfunction:newfunctionvoidpost_predict(inputuvm_reg_field fld,inputuvm_reg_data_t previous,inoutuvm_reg_data_t va...
predict = uvm_reg_predictor#(reg_rw)::type_id::create("predict", this); endfunction: build_phase virtual function void connect_phase(uvm_phase phase); reg2rw_adapter reg2rw = new("reg2rw"); regmodel.default_map.set_sequencer(bus.sqr, reg2rw); predict.map = regmodel.default_map;...
class rw_reg_cb extends uvm_reg_cbs; `uvm_object_utils(rw_reg_cb) my_reg_Rb m_ro_reg_cb; ... virtual function void post_predict( input uvm_reg_field fld , input uvm_reg_data_t previous , inout uvm_reg_data_t value , input uvm_predict_e kind , input uvm_path_e path , inp...
篇5-uvm_regrandomizegetsetupdatemirrorpredictr。。。1.1 randomize 1.1.1 randomize的影响 (1) randomize操作会改变register field的期望值(uvm_reg_field的post_randomize函数内,会将期望值设置为随机的结果),镜像值不会改变;(2) 如果在randomize后,跟着调⽤update,会将期望值写⼊DUT;1.1.2 randomize的...
is_indv_accessible Check if this field can be written individually, i.e. predict Update the mirrored value for this field. Callbacks pre_write Called before field write. post_write Called after field write. pre_read Called before field read. post_read Called after field read.value...
Transistor-level circuit designers have long used SPICE for circuit simulation, mostly because it is silicon accurate and helps them to predict the function, timing, power, waveforms, slopes and delays in a cell before fabrication. RTL designers use digital simulators that have a huge capacity but...
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. ...
2015-04-30 17:10 −UVM的寄存器模型,对一个寄存器bit中有两种数值,mirror值,尽可能的反映DUT中寄存器的值。expected值,尽可能的反映用户期望的值。 几种常用的操作: read/write:可以前门访问也可以后门访问,如果在env的顶层定义过uvm_auto_predict(1),则UVM会在这两个操... ...