3.IPv4/IPv6 transition mechanisms and the implementation of realization have been discussed,focuses on several technologies such as Dual Stack,Tunnel Technology,Network Address Transition/Protocol and the transition mechanism based on SOCKS,and domain name system based on IPv6 was accomplished.
4.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.
6.An instruction that causes the program to branch from the mainline program to the starting address of a subroutine. Before the jump, a return address in the mainline program must be pushed onto the stack.
