1.procedural assignments are used for updating reg ,integer , time ,real,realtime and memory data types. 2.difference between procedural assignments and continuous assignments (1)continuous assignments drive nets and are evaluated and updated when…
block statements : 1. sequential block : begin-end block 2.parallel block : fork - join block block name : 如果block有自己的label, 1.可以disable 此block. 2.可以穿层次应用 block中的变量. 变量都是静态存储. PS: when an assignement is to be made after two separate events h…
1.forever 2.repeat 3.while 4.for The for statement accomplishes the same results as the following pseudo-code that is based on the while loop: begin initial_assignment; while(condition)begin statement; step_assignmen…
1.verilog behavioral models contain procedural statements that control the simulation and manipulate variables of the data types.These statements are concurrent to model the inherent concurrence of hardware. 2.all of the flows defined by the initial…
BLOCKING ASSIGNMENTS 1.A blocking procedural assignment statement shall be exectuted before the execution of the statements that follow it in a sequential bl…
1.delay control : an expression specifies the time duration between initially encountering the statement and when the statement actually executes. the delay expressiong can be dynamic function of the state of the circuit,but it can be a simple number…
conditional statement case statement 1. conditional statement if(expression) statement_or_null[else statement_or_null] | if_else_if_statement If the expression evaluates to true(that is ,has a nonzero know value),the first statement s…
assign / deassgin force /release the procedural continuous assignments(using keywords assign and force) are procedural statements that allow expressions to be driven continously onto variables or nets. 1. net_lvalue = expression in force statement n…
1.Sequential statement groups the begin-end keywords: .group several statements togethor .cause the statements to be evaluated sequentially(one at a time) *any timing within the sequential groups is relative to the previous statement *delays in the s…
Verilog Interiew Quetions Collection : What is the difference between $display and $monitor and $write and $strobe? What is the difference between code-compiled simulator and normal simulator? What is the difference between wire and reg? What is the…
1. What is the race condition in verilog? Ans :The situation when two expressions are allowed to execute at same instance of time without mentioning the order of execution. 2. List the levels of abstraction in verilog? Ans : 1. Behavioral level 2. Re…
Verilog 常见错误汇总 1.Found clock-sensitive change during active clock edge at time <time> on register "<name>" 原因:vector source file中时钟敏感信号(如:数据,允许端,清零,同步加载等)在时钟的边缘同时变化.而时钟敏感信号是不能在时钟边沿变化的.其后果为导致结果不正确. 措施:编辑vector source file 2.Verilog HD…
The principles behind these techniques aren't new. Filament group, for example, have published great content on loading CSS and fonts. I've written this article to document my thoughts and ideas for loading non-blocking resources. The trick to trigge…
摘要: 提出一种方法——ELBlocker,用于自动检测出Blocking Bugs(prevent other bugs from being fixed). 难度在于这些Blocking Bugs仅占很小的比例( the class imbalance phenomenon). 方法:给定一个训练集,ELBlocker首先把将训练数据划分为多个互斥的集合.对每个集合建立一个分类器,然后根据混合分类器的结果,设定一个阈值(决策边界),把 blocking bugs from non-blocki…
原文地址:http://techblog.netflix.com/2016/09/zuul-2-netflix-journey-to-asynchronous.html We recently made a major architectural change to Zuul, our cloud gateway. Did anyone even notice!? Probably not... Zuul 2 does the same thing that its predecessor d…
"Delta cycles are an HDL concept used to order events that occur in zero physical time."sigasi.com Taking the definition for Sigasi, what VHDL calls delay cycles, Verilog calls a scheduler. How VHDL and Verilog determine the order of zero time e…
Awesome系列的Java资源整理.awesome-java 就是akullpp发起维护的Java资源列表,内容包括:构建工具.数据库.框架.模板.安全.代码分析.日志.第三方库.书籍.Java 站点等等. 经典的工具与库 (Ancients) In existence since the beginning of time and which will continue being used long after the hype has waned. Apache Ant - Build…
1.Found clock-sensitive change during active clock edge at time <time> on register "<name>"原因:vector source file中时钟敏感信号(如:数据,允许端,清零,同步加载等)在时钟的边缘同时变化.而时钟敏感信号是不能在时钟边沿变化的.其后果为导致结果不正确.措施:编辑vector source file 2.Verilog HDL assignment warn…
Copied From:https://computing.llnl.gov/tutorials/parallel_comp/ Author: Blaise Barney, Lawrence Livermore National Laboratory UCRL-MI-133316 Table of Contents Abstract Overview What is Parallel Computing? Why Use Parallel Computing? Who is Using Para…
