paul@gill.UUCP (Paul Nordstrom) (07/06/89)
I am building a 64 bit integer class. If anyone out there has already done this and is willing to part with the code, please contact me via e-mail. Also, if anyone knows of a source of c or 68K assembly language routines handling basic mathematical operations on 64 bit integers, I would be interested in those as well. Thanks in advance for any replies. Paul Nordstrom Gill & Co., L.P. uunet!gill!paul
jima@hplsla.HP.COM (Jim Adcock) (07/07/89)
I have int64 and int128 classes written in relatively portable C++. They're about 10x slower that built-in ints. For faster performance rewritting some stuff in assembly would allow you to make use of the carry bit -- resulting in code that would be several times faster.