In order to solve the problems about unfixed instruction length, stack-orientation and addressing virtualization in JVM instruction set, the instruction fetch unit, stack cache and mechanism of address translation in Java chip system are studied.

• 为了解决Java虚拟机指令系统中指令不定长、面向堆栈和地址虚拟化等问题，本文研究了Java芯片中取指部件、堆栈缓冲部件和地址转换机制以及相应物理存储器的管理等关键技术。