On 11/3/2014 10:32 AM, Valeri Galtsev wrote:
So, I would just echo what you said: we hardly will see the need in 128 bit CPUs soon. (BTW, I'm glad to hear the choice which is power of 2. As, in general, the length of CPU word can be anything: 17, 89, ... I'm not mentioning 1 which is used in calculators, as 1_is_ power of 2;-)
I don't think any computer architectures have used word sizes other than a power of 2 multiple of bits in quite a long time, like since the 1960s. the DECsystem 10 and 20 were 36 bit word machines. The PDP8 was a 12 bit architecture. there are some low end embedded processors that are 4 bit (but thats a power of 2, also) but virtually everything resembling general purpose computing equipment in use today is 8/16/32/64 bits.
note I'm speaking of data size, I know there are numerous 'Harvard' architecture (separate code and data space) embedded machines with odd instruction word sizes. Even most of these use 4/8/16 word sizes.
-- john r pierce 37N 122W somewhere on the middle of the left coast _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos
