The stream unit serves as the control unit, fetching and decoding instructions, initiating memory accesses on the behalf of the pipelined functional units, and controlling instruction execution, among other tasks.

The pipelined functional units were called advanced control, delayed control, and interplay.

The first ( retroactively ) RISC-labeled processor ( IBM 801-IBMs Watson Research Center, mid-1970s ) was a tightly pipelined simple machine originally intended to be used as an internal microcode kernel, or engine, in CISC designs, but also became the processor that introduced the RISC idea to a somewhat larger public.

The first highly ( or tightly ) pipelined x86 implementations, the 486 designs from Intel, AMD, Cyrix, and IBM, supported every instruction that their predecessors did, but achieved maximum efficiency only on a fairly simple x86 subset that was only a little more than a typical RISC instruction set ( i. e. without typical RISC load-store limitations ).

Introduced in 1989, it was the first tightly pipelined x86 design as well as the first x86 chip to use more than a million transistors, due to a large on-chip cache and an integrated floating point unit.

It was fully pipelined, with six stages.

The goal was to make instructions so simple that they could easily be pipelined, in order to achieve a single clock throughput at high frequencies.

Unlike most modern CPU designs, functional units were not pipelined ; the functional unit would become busy when an instruction was " issued " to it and would remain busy for the entire time required to execute that instruction.

* Although the decoder was pipelined as a side effect of these single-cycle operations, they didn't use superscalar effects.

In April 1964, the first 7094 II was installed, which had almost twice as much general speed as the 7090 due to a faster clock cycle, dual memory banks and improved overlap of instruction execution, an early instance of pipelined design.

* The ILLIAC II was one of the first pipelined computers, along with IBM's Stretch Computer.

And it was efficiently pipelined and ran even faster than the ECL mainframes of that time.

The Burroughs B4900, a microprogrammed COBOL machine released in ~ 1982 was pipelined and used branch prediction.

The VAX 9000, announced in 1989, was both microprogrammed and pipelined, and performed branch prediction.

The ILLIAC II was the first transistorized and pipelined supercomputer built by the University of Illinois.

By 1986 the top-of-the-line VAX implementation ( VAX 8800 ) was a heavily pipelined design, slightly predating the first commercial MIPS and SPARC designs.

The MODCOMP I, II and III were 16-bit machines, while the MODCOMP IV was an upward compatible 32-bit machine with a paged memory management unit, a two-stage pipelined CPU, and a floating point unit.

Oberon-V ( originally called Seneca, after Seneca the Younger ) is a descendant of Oberon designed for numerical applications on supercomputers, especially vector or pipelined architectures.

In recent decades Zilog has refocused on the ever-growing market for embedded systems ( for which the original Z80 and the Z180 were designed ) and the most recent Z80-compatible microcontroller family, the fully pipelined 24-bit eZ80 with a linear 16 MB address range, has been successfully introduced alongside the simpler Z180 and Z80 products.

A pipelined processor can become very nearly scalar, inhibited only by pipeline stalls ( an instruction spending more than one clock cycle in a stage ).

Some RISC proponents had argued that the " complicated " x86 instruction set would probably never be implemented by a tightly pipelined microarchitecture, much less by a dual pipeline design.

; Instruction scheduling: Instruction scheduling is an important optimization for modern pipelined processors, which avoids stalls or bubbles in the pipeline by clustering instructions with no dependencies together, while being careful to preserve the original semantics.

Note that Windows 2008 introduced pipelined TFTP as part of Windows Deployment Services ( WDS ) and uses an 8 packet window by default.

In a pipelined write, the write command can be immediately followed by another command, without waiting for the data to be written to the memory array.

This helps to eliminate problems caused by the propagation delay of the clock wiring, and allows the illusion of concurrent reads and writes ( as seen on the bus, although internally the memory still has a conventional single port-operations are pipelined but sequential ).

In other words, a pipelined process outputs finished items at a rate determined by its slowest part.

How would an external observer know whether the processing of a message by an Actor has been pipelined?

Don Gillies took over the project in the spring of 2000 and enhanced the protocol to allow pipelined ICAP servers and to support all 3 encapsulations of HTTP allowed by HTTP 1. 1.

In computer science, a decoupled architecture is a processor with out-of-order execution that separates the fetch and decode stages from the execute stage in a pipelined processor by using a buffer.

* the DAISY Pipeline, a cross-platform " open source framework for document-and DTB-related pipelined transformations ", developed by the DAISY Consortium,

Examples of such problems in electronic design automation ( EDA ) include formal equivalence checking, model checking, formal verification of pipelined microprocessors, automatic test pattern generation, routing of FPGAs, and so on.

The popularity of the P5 Pentium caused many software developers to hand-optimize code in assembly language, to take advantage of the P5 Pentium's tightly pipelined and lower latency FPU.

Internal microcode execution in CISC processors, on the other hand, could be more or less pipelined depending on the particular design, and therefore more or less akin to the basic structure of RISC processors.

However, modern x86 processors also ( typically ) decode and split instructions into dynamic sequences of internally buffered micro-operations, which not only helps execute a larger subset of instructions in a pipelined ( overlapping ) fashion, but also facilitates more advanced extraction of parallelism out of the code stream, for even higher performance.

Additionally, modern CPUs ' execution units are usually pipelined.

In a traditional non-optimized design, a particular instruction in a program sequence must be ( almost ) completed before the next can be issued for execution ; in a pipelined architecture, successive instructions can instead overlap in execution.

The design had two fully pipelined double precision multiply-add units, which could stream data from the 4 MB off-chip secondary cache.

However, a significant difference is that the 68060 FPU is not pipelined and is therefore up to three times slower than the Pentium in floating point applications.

This section also looks at ways in which brands have " muscled " their presence into the school system, and how in doing so, they have pipelined advertisements into the schools, and have used their position to gather information about the students.

The same could not be said about smaller firms like Cyrix and NexGen, but they realized that they could apply ( tightly ) pipelined design practices also to the x86-architecture, just as in the 486 and Pentium.

The multiplier is not pipelined and has a latency of multiple cycles.

Increasingly, however, XSLT processors use optimization techniques found in functional programming languages and database query languages, such as static rewriting of an expression tree ( e. g., to move calculations out of loops ), and lazy pipelined evaluation to reduce the memory footprint of intermediate results ( and allow " early exit " when the processor can evaluate an expression such as without a complete evaluation of all subexpressions ).

Floating-point operations are often pipelined.

In earlier superscalar architectures without general out-of-order execution, floating-point operations were sometimes pipelined separately from integer operations.

For instance, the multiplication and addition units were implemented as separate hardware, so the results of one could be internally pipelined into the next, the instruction decode having already been handled in the machine's main pipeline.

The Cray-1 had twelve pipelined functional units.