From: utzoo!decvax!yale-com!brunix!nkm Newsgroups: net.micro Title: Re: Lisa benchmark Article-I.D.: brunix.1434 Posted: Mon Feb 7 08:02:57 1983 Received: Tue Feb 8 04:47:37 1983 References: sri-arpa.374 I find it pretty hard to believe that your Z-80 was able to countdown from 10 million in 4 seconds. Even if your code compiled to 1 instruction to do the whole shebang, it seems that your Z-80 would be running at 2.5 MIPS, making it closer to a Cray or a Dorado than something that runs toasters. Having done a similar benchmark (counting to 50,000,000) on any number of workstations (HP 9000, Xerox Dolphin, Dandelion, Apollo, Sun, VAX,...) and gotten numbers on the order of 3 to 7 minutes, I don't think I'm ready to by Tandy stock quite yet. My guess is that your BDS/C compiler thinks ints are 16 bits long, i = 10000000 really assigns 0 to i, and it takes 4 seconds to test and fail the while condition. Only a guess... Norm Meyrowitz Brown University CS !{decvax,cornell,vax135}!brunix!nkm