8086系统汇编语言压缩BCD码与二进制相互转换问题的4种方法

Conclusion and Further Research of the Mutual Conversion from Binary Digit to Packed BCD Format Based on the Assembler Language of the 8086 System

总结出压缩BCD码与二进制相互转换的4种方法,即逐位调整法、DAA指令法、除十求余法和按权展开法。同时分析了各种方法的适用范围和不同条件下应该使用的最佳方法。最后结合具体程序说明各种方法的使用方法,并且给出注意事项。

Conclude four methods of conversing binary digit to packed BCD format mutually, that is Bit by Bit Adjustment Method, DAA Instruction Method, Divided by Ten to Calculate the Remainder Method and Sum of the Weights Method. Secondly, analyze the application range of each method and point out the best method to be chosen under different conditions. Finally, combined with specific programs to demonstrate the way of using each method and provide the precautions to instruct and inspire the students.