Marco Matthies posted <[EMAIL PROTECTED]>, excerpted below, on Thu, 26 Jan 2006 14:38:53 +0100:
> Intel processors will indicate Hyperthreading capability in bit 28 of > edx and number of logical processors in bits 16-23 of ebx after issuing > the cpuid instruction. [1][2] > > According to [3], athlon x2 will do this as well (set edx[2]=1 and > indicate two logical processors) to ensure easier software transition > (maybe windows, games, etc.?). > > [1] > http://www.intel.com/cd/ids/developer/asmo-na/eng/dc/threading/knowledgebase/43843.htm > [2] > http://intel.com/cd/ids/developer/asmo-na/eng/dc/threading/211924.htm?page=5 > [3] http://www.x86-secret.com/?option=newsd&nid=870 Thanks. I hadn't realized AMD's procs set that. Useful info! -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman in http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html -- [email protected] mailing list
