本实验为设计实验。要求实现两个较大的十进制数相乘，最后乘积用非压缩BCD码调整为十进制形式。实验中要用到DOS或BIOS中断；用非压缩BCD码调整乘积。本实验用到算术运算指令、十进制调整指令、子程序设计、DOS和BIOS中断等，所以通过本实验我们对这些知识应能熟练掌握并应用。-Experiment for the design of this experiment. Demands of the two larger decimal number multiplication, the final product of non-compressed BCD code for decimal form of adjustment. Experiments used in DOS or BIOS interrupt　BCD code used to adjust the non-compressed product. Arithmetic operations used in this experiment instructions, decimal adjust instruction, subroutine design, DOS and BIOS interrupt and so on, so we adopted the experimental knowledge of these should be able to master and apply.