VHDL语言编程中的优先级讨论  

Discussion on Priority of VHDL Language Programming

作　　者：李相国[1] 

机构地区：[1]河南工业大学信息科学与工程学院,河南郑州450001

出　　处：《电气电子教学学报》2015年第1期37-39,共3页Journal of Electrical and Electronic Education

摘　　要：本文针对VHDL语言具有高级语言的灵活性特点,分析讨论了VHDL编程中的优先级问题。本文选用4-2编码器和4-2优先编码器作为实例,在分析VHDL语句特点基础上,结合对优先级的特点分析,分别以不同方式实现对它们的VHDL语言描述,包括使用匹配CASE语句描述4-2优先编码器。From the fact that the VHDL language has the flexibility feature of high-level programming languages, this paper analyzes and discusses the priority of VHDL statements and VHDL language programming. The paper chooses the 4-2 encoder and the 4-2 priority encoder as examples;then,based on analysis of the VHDL statements and priority,the paper describes these two using different VHDL statements,including the matching CASE state-ment description of the 4-2 priority encoder.

关 键 词：VHDL 优先级 灵活性 

分 类 号：G424.1[文化科学—课程与教学论] TP331.2[文化科学—教育学]