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Intel Publishes "X86-S" Specification For 64-bit Only Architecture
Intel quietly released a new whitepaper and specification for their proposal on "X86-S" as a 64-bit only x86 architecture. If their plans workout, in the years ahead we could see a revised 64-bit only x86 architecture.
Entitled "Envisioning a Simplified Intel Architecture", Intel engineers lay the case for a 64-bit mode-only architecture. Intel is still said to be investigating the 64-bit mode-only architecture that they also refer to as "x86S". Intel is hoping to solicit industry feedback while they continue to explore a 64-bit mode only ISA.
[...] Under this proposal, those wanting to run legacy 32-bit operating systems would have to rely on virtualization. To further clarify, 32-bit x86 user-space software would continue to work on modern 64-bit operating systems with X86-S.
Also at Tom's Hardware.
(Score: 1) by shrewdsheep on Monday May 22, @01:23PM (1 child)
I am wondering about performance difference between fixed/floating. My understanding is that floating point is fully pipelined, i.e. there is a 1 IPC throughput. Is this correct? How many pipeline stages are there for floating point? How many for fixed?
(Score: 2) by VLM on Monday May 22, @04:06PM
The clock time is always faster for fixed, its just less complex than float.