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Topic: Intel 80386

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In the News (Sun 20 Apr 14)

  Intel 80486
The Intel 80486 (i486, 486) is a range of Intel CISC microprocessors which is part of the Intel x86 family of processors.
Intel 80486SX - a 486DX with its FPU disabled.
Intel 80486SL-NM[?] - 486SX with power conservation circuitry; SL enhanced suffix, denotes a 486 with special power conservation circuitry similar to that in the 486SL processors.
www.ebroadcast.com.au /lookup/encyclopedia/in/Intel_486.html   (261 words)

 Intel 80386 - Wikipedia, the free encyclopedia
The Intel 80386 is a microprocessor which was used as the central processing unit (CPU) of many personal computers from 1986 until 1994 and later.
The predecessor of the 80386 was the Intel 80286, a 16-bit processor with a segment-based memory management and protection system.
Though Intel would shortly introduce the 80486 and eventually the Intel Pentium line of processors, the support in the 386 for the 32-bit flat memory model would be arguably the most important feature change until the release of EM64T (introduced by AMD under the name AMD64) in 2004.
en.wikipedia.org /wiki/Intel_80386   (921 words)

 Intel from FOLDOC   (Site not responding. Last check: 2007-10-13)
The 80186 was an improvement on the Intel 8086 and Intel 8088.
The Intel 8086 was based on the design of the Intel 8080 and Intel 8085 (it was source compatible with the 8080) with a similar register set, but was expanded to 16 bits.
Intel bubble memory was on the market for a while, but faded away as better and cheaper memory technologies arrived.
foldoc.org /?Intel   (4390 words)

 Itanium may sink Intel - Christian Business
Intel's 80386 architecture was a critical component in the company's ability to establish it's dominant leadership position through the 1990's and into the beginning of this decade.
Intel has placed a huge financial bet that there will be proportionally huge demand for microprocessors that are dramatically faster but that also consume dramatically more power and produce dramatically more heat.
Intel's ability to achieve huge financial performance during the 1990's was driven by its ability to be the undisputed leader in providing the faster and faster chips consumers were demanding in their PCs.
www.businessreform.com /article.php?articleID=10164   (755 words)

 GameDev.net - Intel 80386 Programmer's Reference Manual   (Site not responding. Last check: 2007-10-13)
Introduces the remaining registers and data structures of the 80386 that were not discussed in Part I. Introduces the systems-oriented instructions in the context of the registers and data structures they support.
The 80386 architecture takes advantage of this by providing mechanisms to support direct access to the instructions and data of the current module's environment, with access to additional segments on demand.
The 80386 fetches all instructions from this code segment, using as an offset the contents of the instruction pointer.
www.gamedev.net /reference/articles/article204.asp   (13553 words)

 Lloyd Borrett - Computing - Articles - The Intel 80386 SX
Much has been said recently about the introduction of the Intel 80386SX or P9, but as usual little has been said about the real benefits of the 80386SX, and where it fits into the new generation of personal computers and PC based solutions that are coming our way.
The Intel 80386SX is to the 80386 as the original 8088 is to the 8086.
However, the performance difference between the 80386 and the 80386SX is not as great as that between the 8086 and the 8088.
www.borrett.id.au /computing/art-1989-01-01.htm   (679 words)

 [No title]
Intel 8086 and 8088 ------------------- The Intel 8086 was released on June 6, 1978.
Intel 80486 ----------- The 486 processor was roughly twice as fast as a 386 running at the same clock speed.
Intel did offer an upgrade from the 486SX to the 486DX by installing the OverDrive processor to restore the missing circuits, but at the cost of reduced proximity to the main CPU circuitry.
www.textfiles.com /uploads/intel.txt   (2695 words)

 PC Processors Guide by x86.org   (Site not responding. Last check: 2007-10-13)
Therefore Intel was at the right place at the right time when IBM made their historic decision to use the 8088.
Intel continued their attempts at closing the architecture to the exclusion and elimination of their competition.
Intel continued the evolution of the 8086 and 8088 by introducing the 80186 and 80188.
www.x86.org /articles/computalk/help.htm   (3924 words)

 Lloyd Borrett - Computing - Articles - Which CPU Should You Purchase
IBM and Microsoft made an announcement at Comdex in November that their "Platform for the 90s" was to be based on the capabilities of the Intel 80386SX, 80386, 80486 and future Intel family microprocessors.
Intel themselves have been running an advertising campaign in the USA which stresses you should always choose an 80386SX over an 80286 or earlier microprocessor.
The Intel 80386 addresses 4 gigabytes of memory, compared with 1 megabyte possible on the 8088/8086.
www.borrett.id.au /computing/art-1990-02-02.htm   (2274 words)

 Summary Report on the Intel Corporation
Intel was initially incorporated in the state of California in 1968, but later moved its incorporation to Delaware in 1989.
Intel has been authorized to issue up to a maximum of 1.5 billion shares of common stock and 50 million shares of preferred stock by its letters of incorporation filed in Delaware.
Intel makes no representation that Materials in the site are appropriate or available for use in other locations, and access to them from territories where their contents are illegal is prohibited.
home.hawaii.rr.com /gmt/Bus313/summary.htm   (4239 words)

 Computer Knowledge - Intel 80x Processors
While introduced at the same time as the Intel 8088 and was a better processor, the 8086 was not picked for the first IBM personal computers because of the difficulty of building 16-bit accessories versus 8-bit accessories which the 8088 supported.
The 80386 chip had a fill 32-bit data bus structure and the address space was again increased to 4GB.
The SX version of the 80386 had all the original chip's capabilities but had a 16-bit external data bus and so could use all of the existing 80286 peripherals.
www.cknow.com /ckinfo/i/Intel80xProcessors-Descri.html   (505 words)

 Intel386™ Processors - Overview
Intel's 186 processor family has been designed in many embedded applications over the years.
Since the EX has an 80386 core, it is code compatible with 186 processors, making it a logical upgrade processor to run your existing software.
The Intel® System Management Mode is built into the Intel386 EX chip.
www.intel.com /design/intarch/intel386/index.htm   (1464 words)

 Intel 80386 (via CobWeb/3.1 planetlab2.cs.umd.edu)   (Site not responding. Last check: 2007-10-13)
An Intel 80386 Microprocessor The Intel 80386 is a microprocessor which was used as the central processing unit (CPU) of many personal computers from 1986 until 1994 and later.
Intel decided against producing the chip before then, as the cost of production would have been uneconomic.
Intel later introduced the 80486, but not until the introduction of EM64T in 2004 did Intel's processors introduce as important a feature as the 32-bit flat addressing made possible by the 80386.
intel-80386.iqnaut.net.cob-web.org:8888   (474 words)

 [No title]   (Site not responding. Last check: 2007-10-13)
2.4 Instruction Format The information encoded in an 80386 instruction includes a specification of the operation to be performed, the type of the operands to be manipulated, and the location of these operands.
BEFORE SIGN EXTENSION----------S 3.2 Binary Arithmetic Instructions The arithmetic instructions of the 80386 processor simplify the manipulation of numeric data that is encoded in binary.
If the model of memory organization used in a particular 80386 application does not make segments visible to applications programmers, intersegment control transfers will not be used.
www.csse.monash.edu.au /~powell/pc_docs/386intel.txt   (14434 words)

 AMD: Evolution of an Innovator
A California judge later said that – by agreeing to be a second source for Intel, “AMD came to Intel’s help when the latter needed assistance in establishing [its microprocessor]; architecture in the marketplace.” This move helped Intel to establish x86 as the dominant PC architecture.
Intel notifies AMD it is terminating the second source agreement, an aggressive move to prevent AMD from producing a 486-compatible microprocessor.
Intel and HP announce the development of a proprietary 64-bit microprocessor architecture (code-named “Merced” and eventually launched as “Itanium”), based on an entirely new instruction set called “IA-64,” which is incompatible with the millions of existing x86-based PCs and software applications.
www.amd.com /us-en/Weblets/0,,7832_12670_12686,00.html   (1765 words)

 80386/80486 Poster, RADECS 95
The 80386 microprocessor is currently in use on several spaceflight projects, while the 80486 is being considered for other projects.
Three device types from the 80386 microprocessor family were tested: the 80386, 80386, and 82380.
The 80386, 80387, and 82380 were mounted on a custom-designed single-board computer (SBC) that was placed inside the BNL vacuum test chamber.
radhome.gsfc.nasa.gov /radhome/papers/intel.htm   (3298 words)

When IBM respond slowly to use the 80386 chip, Intel has turned to Compaq to move the chip to market that was proved to be very successful.
Because Intel had made enough money from its 80386 processor by late 1986, it resisted IBM's efforts to have Intel license the rights of the 386 chip to other manufacturers, so that IBM would be guaranteed a second source.
However, Intel have to mollify IBM by both granting IBM the rights to make 80386 chips for its own use and allowing IBM to modify the 80386 chip.
pegasus.rutgers.edu /~yyc/html/body_weakness2.html   (570 words)

 [No title]   (Site not responding. Last check: 2007-10-13)
The 80387 math coprocessor is an extension to the 80386 microprocessor.
The 82380 peripheral integrates numerous functions necessary in a 80386 operating environment; the device acts as DMA controller, interrupt controller, interval timer, wait state generator, DRAM refresh controller, and system reset logic.
By integrating the microprocessor with the 80387 math coprocessor, on-chip cache memory, a clock doubler, and RISC design, operational performance is greatly enhanced.
radhome.gsfc.nasa.gov /radhome/papers/INTELF2.DOC   (1220 words)

 Guide: About the 80386 architecture   (Site not responding. Last check: 2007-10-13)
However, 80386 advanced topics such as protected mode, virtual memory, and multitasking, will not be presented.
It is used by string instructions to determine whether to process strings from the end of the string (auto-decrement), or from the beginning of the string (auto-increment).
Intel 80386 Programmer's Reference Manual 1986 - I used this mostly to be sure all the information in this paper was accurate.
www.delorie.com /djgpp/doc/ug/asm/about-386.html   (3744 words)

 INTEL HISTORY - Apple vs Microsoft   (Site not responding. Last check: 2007-10-13)
Cofounder of Intel stated in 1971 (when he built the first commercial “computer on a chip”, the 4004) that the number of transistors that could be placed on a single chip will double every 18 month.
Note: Intel Pentium D tips the balance in favor of Intel.
Note: Moreover, Intel has succeeded in launching dual-core processors at half the prices proposed by the competition.
www.jmusheneaux.com /index000.htm   (1588 words)

 Intel 80386 - Wikipedia (via CobWeb/3.1 planetlab2.cs.umd.edu)   (Site not responding. Last check: 2007-10-13)
Progettato e prodotto dalla stessa Intel, fu presentato nell'ottobre del 1985, ma divenne possibile produrlo convenientemente solo nel 1986, quando i primi esemplari arrivarono ai consumatori.
L'80386 fu una pietra miliare nell'evoluzione della serie di processori nata con l'Intel 8008: rispetto al suo predecessore, l'Intel 80286, il 80386 aveva un'architettura a 32 bit ed una unità di paginazione della memoria che rese più semplice adottare sistemi operativi dotati di memoria virtuale.
Anche se successivamente Intel sviluppò e introdusse molti altri modelli, per molto tempo nessuno di questi introdusse novità di portata analoga, fino all'impiego dell'EM64T nel 2004, in netto ritardo rispetto ad altre architetture, come ad esempio DEC Alpha, che già dal 1992 aveva il supporto per i 64 bit.
it.wikipedia.org.cob-web.org:8888 /wiki/Intel_80386   (786 words)

 Intel Architecure Programming and Information
This site is to gather and discuss information about all the intel compatable processor, expecialy any CPU's that support the intel80386 Architecture and instructions, this included the Pentium, P2, P-II, P3, Pentium3, P-III, P4, Pentium 4 Processors.
The 80386 initially shipped at 16 MHz in October 1985, making it faster than any Intel version of the 80286.
The first IBM compatible to use the 386 was the Compaq 386, The 80386 had a MIPS (million instructions per second) rating of 5 (at 16 MHz) to 11.4 (33 MHz).
www.intel80386.com   (728 words)

 Intel80386chip   (Site not responding. Last check: 2007-10-13)
The 80386 (commonly known as the "386 chip") could handle four million operations per second and handle memory up to four gigabytes (4,294,967,296).
The 386 was also compatible with Intel's earlier processor line for the IBM PC and compatibles and could run software designed for those processors as well.
John Crawford was the architecture manager for the Intel 386 and the Intel 486 microprocessors, and co-manager of Pentium microprocessor development
www.computermuseum.li /Testpage/Intel80386chip.htm   (114 words)

 Windows and Early Intel 80386 CPU 32-Bit Operations
WARNING: the Intel 80386 processor in the computer does not reliably execute 32-bit multiply operations, Windows usually works correctly on computers with this problem but may occasionally fail, you may want to replace your 80386 processor.
When Intel introduced the 80386 CPU, it released some chips that had not been fully tested using 32-bit operations.
The Intel products discussed here are manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.
support.microsoft.com /support/kb/articles/Q38/0/29.ASP   (351 words)

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