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The P5 Pentium was the first superscalar x86 processor; the Nx586, P6 Pentium Pro and AMD K5 were among the first designs which decode x86-instructions asynchronously into dynamic microcode-like micro-op sequences prior to actual execution on a superscalar microarchitecture; this opened up for dynamic scheduling of buffered partial instructions ...
A wide-issue architecture is a computer processor that issues more than one instruction per clock cycle. [1] They can be considered in three broad types: Statically-scheduled superscalar architectures execute instructions in the order presented; the hardware logic determines which instructions are ready and safe to dispatch on each clock cycle.
Superscalar out-of-order execution, branch prediction PowerPC e5500: 2010 4-issue 7 stage Out-of-order, multi-core PowerPC e6500: 2012 Multi-core PowerPC 603: 4 5 execution units, branch prediction, no SMP PowerPC 603q: 1996 5 In-order PowerPC 604: 1994 6 Superscalar, out-of-order execution, 6 execution units, SMP support PowerPC 620: 1997 5
The following is a partial list of Intel CPU microarchitectures. The list is incomplete, additional details can be found in Intel's tick–tock model, process–architecture–optimization model and Template:Intel processor roadmap.
Download as PDF; Printable version; In other projects ... This category contains superscalar microprocessors released before 2000. ... Superscalar processor; A. Alpha ...
The superscalar complexity in the case of modern x86 was solved by converting instructions into one or more micro-operations and dynamically issuing those micro-operations, i.e. indirect and dynamic superscalar execution; the Pentium Pro and AMD K5 are early examples of this. It allows a fairly simple superscalar design to be located after the ...
[58] [59] The Blue Waters architecture was based on the IBM POWER7 processor and intended to have 200,000 cores with a petabyte of "globally addressable memory" and 10 petabytes of disk space. [6] The goal of a sustained petaflop led to design choices that optimized single-core performance, and hence a lower number of cores.
With a superscalar processor, the instruction window of the processor fills up with a number of instructions (known as the issue rate). Depending on the scheme that the superscalar processor uses to dispatch these instruction from the window to the execution core of the CPU, there may be problems if there is a dependency not unlike the one ...