J4 ›› 2007, Vol. 29 ›› Issue (6): 121-123.
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曹计昌 周宇杰
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摘要:
本文介绍了一种实现一卡多发的新型智能卡UCard及其体系结构。针对UCard现有固定存储空间分配存在资源浪费等不足,提出了一种按需存储空间分配方法,并且该方法通过对高位地址总线的约束实现了不同大小COS之间的物理隔离。然后在引入动态地址控制器的基础上,给出了基于按需存储空间分配的UCard底层调度模块的一种实现方式。最后利 用有限状态机对UCard底层调度模块装载、调度、卸载COS的过程进行了形式化描述。
关键词: UCard 底层调度模块 存储分配 有限状态机
Abstract:
UCard is a new concept of SmartcaM that can realize the functions of muhi-COS. This paper firstly introduces its architecture and basic characteristics. Then the method of space-sensitive storage allocation is proposed to solve the problem of resource waste in fixed storage allocation , and this method can also carry out the physical separation between COSes by restricting high addresses. After the introduction of a dynamic address controller, of implementing the UCard scheduling module based on space-sensitive storage allocation is presented. Finally, the finite state module is used for forma lly describing COS loading,COS scheduline and COS uninstalling.
Key words: (UCard, UCard scheduling module, storage allocation, finite state machine)
曹计昌 周宇杰. 基于高地址约束和按需存储分配的UCard底层调度模块研究[J]. J4, 2007, 29(6): 121-123.
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http://joces.nudt.edu.cn/CN/Y2007/V29/I6/121