利用simulink制作的十六进制计数器-Simulink produced using hexadecimal counter

大数相乘基本算法，相当于模拟手算。使用GMP生成指定数位的01串大数，将生成的01串用char型截取，运算中其实是以一次取4位进行运算。相当于16进制运算。-Multiplication of large numbers of basic algorithms, equivalent to simulate hand count. GMP is generated using the specified digit string of 01 large numbers, will generat