1.用do...while 语句计算平方根的简易近似算法。2.打印小于N（大于2的自然数）的素数

開平方根IP將sqroot_license.txt中的FEATURE 6AF8_0048 alterad 0000.00 permanent uncounted 4A689178551B VENDOR_STRING=gl15kdhm5gUPkJD7iM82mn$$ HOSTID=ANY加入就可以使用了！

这是用于VHDL的开方运算，大家试试看，能不能好用-sqrt

求平方根的ip核，Altera提供，可以用在FPGA上，是AHDL语言写的，不开放源码-Square root of the ip seeking nuclear, Altera provides, can be used in FPGA, is written in AHDL, not open source

Fixed point square root routine for any microcontroller (8/16/32 bit), faster than libc version. Function calculates the integer square root for 32-bit number. Calculated as 16-bit integer part and 16-bit fractional part. Computation is performed f