4.1

  编写程序，将BLKS为首址的连续N个字节数传送至BLKD为首址的存储区。要求用子程序实现数据的传送，由调用程序根据BLKS、BLKD、两者的位置关系以及数据块的大小为子程序提供入口参数。另外，要求分别采用三种方法实现参数传递，并要求保护和恢复现场。上机调试程序，检查程序正确性(Programming will be headed by BLKS site for N number of bytes sent to the US-led BLKD site storage area. Subroutine requires the transmission of data from the call process in accordance with BLKS, BLKD, the relationship between the two locations, as well as the size of data blocks the entrance of the parameters provided for the Subroutine. In addition, the requirements of the three methods were used to transfer parameters, and calls for the protection and restoration of the site. Debugger on the machine to check the correctness of the procedure)

4.1.txt