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| | Intel 8087 - Wikipedia, the free encyclopedia |
 | | The purpose of the 8087, the first of the x87 family, was to speed up computations on demanding applications involving floating point mathematics. | | | The 8087 was the first math coprocessor designed by Intel and it was built to be paired with the ass] microprocessors. | | | Apart from this, the 8087 offered an 80-bit/17-digit packed BCD (binary coded decimal) format and 16,32 and 64-bit integer data types. |
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http://en.wikipedia.org/wiki/Intel_8087
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| | Intel 8087 |
| | The Intel 8087 is a 16-bit floating-point math co-processor or FPU, first announced by Intel in 1980. | | | It was designed to be used in conjunction with Intel's 8088 and 8086 CPUs, providing them with approximately 60 additional instructions for doing floating-point arithmetic. | | | Note that certain programs and packages will test for the presence of an 8087 and invoke different routines accordingly; these program create the false impresssion that the 8087 magically speeds up general purpose computing. |
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http://bopedia.com/en/wikipedia/i/in/intel_8087.html
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| | Intel 8086 - Wikipedia, the free encyclopedia |
| | The most influential microcomputer of all, the IBM PC, used the Intel 8088, a version of the 8086 with a narrower memory bus. | | | The 8086 is a 16-bit microprocessor chip designed by Intel in 1978, which gave rise to the x86 architecture. | | | The Intel 8088 (released shortly afterwards) was essentially the same chip, but with an external 8-bit data bus, allowing the use of cheap chipsets. |
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http://en.wikipedia.org/wiki/Intel_8086
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| | CPU-World: Intel 8087 family |
| | Intel 8087 is a numeric co-processor for Intel 8086, 8088, 80186 and 80188 processors. | | | The Intel 8087 captures the memory address and, possibly, data, and uses the captured address to read more data or write data to memory. | | | There are 8087 co-processors stamped "IBM", but it seems that IBM didn't manufacture the chips and only re-branded Intel chips. |
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http://www.cpu-world.com/CPUs/8087
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| | Olympus MIC-D: Integrated Circuit Gallery - Intel 8087 Math Coprocessor |
| | Released in 1980, the Intel 8087 is the math coprocessor designed to accompany the 16-bit 8086 and 8088 microprocessors. | | | The original chip, the basic 8087, was designed to operate at system clock speeds up to 5 MHz and was suitable without any modifications for IBM PCs and XTs and compatible personal computers. | | | The "i" silk-screened onto the ceramic package indicates that Intel produced the chip instead of one of its licensed manufacturers. |
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http://www.olympusmicro.com/micd/galleries/chips/intel8087.html
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| | [No title] |
| | Intel 486DX The Intel 486DX is, of course, not solely a coprocessor. | | | Unlike Intel's coprocessors, which use the CORDIC [18,19] algorithm to compute the transcendental functions, Cyrix uses polynomial and rational approximations to the functions. | | | Intel 387SX This is the coprocessor paired with the Intel 386SX CPU. |
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http://www.getty.net/texts/coproces.txt
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| | Intel 8086 |
| | There were mathematical coprocessors for the 8086: the Intel 8087,... | | | Other factors were the 8-bit Intel 8088 version, which could use existing Intel 8085-type components, and allowed the computer to be based on a modified 8085 design. | | | Shortly later the Intel 8088 was introduced with an external 8-bit bus, allowing the use of cheap chipsets. |
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http://www.ebroadcast.com.au/lookup/encyclopedia/80/8086.html
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| | Chips.5u.com |
| | The Intel 486TM processor was the first to offer a built-in math coprocessor, which speeds up computing because it offloads complex math functions from the central processor. | | | Intel's Ted Hoff felt differently; he was the first person to recognize that the new silicon-gated MOS technology might make a single-chip CPU (central processing unit) possible. | | | It was the first Intel processor that could run all the software written for its predecessor. |
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http://www.chips.5u.com/idxhst.html
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| | Coprocessor - |
| | An 8088 processor without an 8087 would interpret these instructions as an internal interrupt, which could be directed to trap an error or to trigger emulation of the 8087 instructions in software. | | | The original IBM PC included a socket for the Intel 8087 floating point coprocessor which was a popular option for people using the PC for CAD or mathematics-intensive calculations. | | | The Intel 80386 microprocessor used an optional "math" coprocessor (the 80387) to perform floating point operations directly in hardware. |
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http://psychcentral.com/psypsych/Coprocessor
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| | [No title] |
| | The 8087 NPX for this processor family implemented a complete numeric processing environment in compliance with an early proposal for the IEEE 754 Floating-Point Standard. | | | Like the 8087 and 80287 that preceded it, the 80387 is explicitly designed to deliver stable, accurate results when programmed using straightforward "pencil and paper" algorithms. | | | 1.1 History The 80387 Numeric Processor Extension (NPX) is compatible with its predecessors, the earlier Intel 8087 NPX and 80287 NPX. |
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http://www.ragestorm.net/downloads/387intel.txt
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| | Embedded Pentium® Processor Family Technical Information Center - Floating-Point Unit |
| | The first Intel Math Coprocessors (the Intel 8087, Intel 287, and Intel 387) were companion processors to the Intel 8086/8088, Intel 286, and Intel386 processors, respectively, and were designed to improve and extend the numeric processing capability of the Intel Architecture. | | | Each generation of the Intel Architecture FPUs have been explicitly designed to deliver stable, accurate results when programmed using straightforward "pencil and paper" algorithms, bringing the functionality and power of accurate numeric computation into the hands of the general user. | | | For all the Intel Architecture FPUs and NPXs except the 8087, the FPU instruction pointer points to any prefixes that preceded the instruction. |
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http://www.engr.udayton.edu/faculty/jloomis/ece314/notes/fpu/fpu.html
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| | [No title] |
| | Intel has developed a line of math coprocessors n2 covered by the patent, including the Intel 8087, 80287, and 80387 coprocessors. | | | In considering Intel's motion, the district court weighed several factors relating to injunctive relief, including the likelihood of Intel's success on the merits, irreparable harm, the balance of hardships, and the public interest. | | | ULSI sells a math coprocessor known as the US83C87 ('C87 coprocessor) which is compatible with the Intel 80386 microprocessor and competes commercially with the Intel 80387 coprocessor. |
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http://www.mofo.com/mofo_dev/decisions/995f2d1566.html
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| | [No title] |
| | The claim to fame of the Intel 80486 CPU chip is that it has the numeric co-processor built-in. | | | While the Cyrix chip is at least twice as fast as the Intel chip in the 16, 20, and 25 Mhz versions, the 33 Mhz version of the Cyrix is only marginally better than the 33 Mhz version of the Intel chip. | | | Don't be fooled by Intel's claims of "built-in cache" on the 486 chip. |
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http://www.textfiles.com/fidonet-on-the-internet/909192/fido0752.txt
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| | Mahjong Freeware Download at Heuse.com |
| | It features an Intel 8086 microprocessor, Intel 8087 math coprocessor, Zilog Z80A microprocessor, 640x400 graphics, dual floppy drives, and support of various operating systems. | | | Seiko introduces the 8600, using an Intel 8086 microprocessor. | | | It features an Intel 8086 microprocessor, Intel 8087 math coprocessor, two Intel 8088 microprocessors for I/O and communications control, 256KB RAM, RMX/86 operating system, and 512x480 color graphics. |
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http://www.heuse.com/time-1982.htm
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| | DTACK GROUNDED #2 -- August 1981 |
| | The 8087 board will be about $1000 initially ($400 to us for the board, $600 to Intel for the chip set. | | | It was the Intel representative's suggestion that it would be a good idea to make math processor boards for microcomputer systems in general, not just the Pet. | | | When we began to look at the specifies of coupling the 8087 to a 6502 system, it became obvious that, while it could be done and would run arithmetic very, very fast, the 6502 was going to be a HORRIBLE bottleneck for all the other stuff a high level language had to do. |
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http://linux.cis.monroeccc.edu/~paulrsm/dg/dg02.htm
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| | [No title] |
| | The 8087 allows for software implementation of warning mode, but, as far as I know, no such software has ever been written. | | | It is generated correctly by Intel, or any other, Fortran, running on any 8087 machine, with no special exception handling. | | | It might be argued that such a result is reasonable for A, but I think that it is hard to justify for B. However, Intel Fortran appears to arrange to have the last bit of the 8087 control word turned off. |
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http://elib.zib.de/netlib/hypercube/ipsc-error-handle
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| | Just Too Good - Darren's IT / Hardware Technical Resource |
| | We'll start with the Intel 4004, a 4 bit CPU, and progress until the end of the 16 bit era. | | | In 1971, Intel released the world's first general-purpose processor: the 4004. | | | I refer to it as 'general-purpose' because it could perform many different instructions, reacting in a pre-designed way to electrical input. |
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http://www.just2good.co.uk/cpuHistory.htm
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| | The Re-Birth of PACS as an Enterprise-Wide Solution |
| | The computer systems were CPU’s using an INTEL 8086/8087 16-bit microcomputer and an IEEE-796 (MULTIBUS) internal bus. | | | The maximum throughput rate of the Ethernet Network and the INTEL 8086/8087 microcomputer system was measured to be 850 KB/second, much too slow to satisfy the requirements of an image management system. | | | The CPU operating system was MP/M-86 with more than 70,000 lines of application software written by the Department of Computer Engineers. |
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http://www.reillycomm.com/it_archive/it_to0301_1.htm
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| | DTACK GROUNDED #6 -- January 1982 |
| | At the SAME TIME, Intel states that the 432 is "intended for projects in which there is a large initial software effort (10-person team for 2 yrs) followed by considerable effort to maintain and enhance the software. | | | QUIBBLE #3: Intel has made the 432 MUCH easier to program (or so they claim) by restricting the programmer to high level language constructs. | | | QUIBBLE #4: Intel executives have trumpeted the 432 as the answer to the "programmer crisis". |
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http://www.amigau.com/68K/dg/dg06.htm
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| | DTACK GROUNDED #8 -- April 1982 |
| | In fact, Intel executives are quoted in the article as stating FIRMLY that: 1) The iAPX 432 will NOT be abandoned, and 2) Intel had just decided (within the past week) to build a 32 bit version of the 8086. | | | We made fun of the Intel 8086 as a 40 pin clock generator for the 8087. | | | High speed graphics computations were ONE of the applications we had in mind for the 8087. |
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http://www.amigau.com/68K/dg/dg08.htm
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| | sandpile.org -- Intel manuals |
| | Intel 486 SX processor and Intel 487SX math coprocessor | | | Intel 486 DX2 processor cache and memory design considerations | | | Intel 386 EX special environment embedded processor B1-step errata |
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http://alumnat.upv.es/pla/visfit/1466/AAABNcAATAAAErSAAQ/bibintel.htm
(1172 words)
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| | CPU Photo Gallery |
| | Introduced in 1971, the Intel C4004 "Computer-on-a-Chip" is a | | | Qualities: First Intel processor that could run all | | | Processor: Intel i486DX - Frequency: 33 MHz |
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http://www.zianet.com/kromeke/pastcomp/cpu_photo.htm
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| | Exploring the Intel 8087 |
| | It is then written into memory in IEEE 64-bit floating point format (8 bytes) starting at address 200. | | | This simple program loads the constant 1 (FLD1) into the 8087. | | | See the IEEE Floating Point Value for 1.000000 |
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http://www.ee.unb.ca/tervo/ee6373/8087ex1.htm
(185 words)
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| | Antique Software: Turbo Pascal v3.02 |
| | Most computers do not come with the 8087 chip installed. | | | Please note that to use TURBO-87.COM you must have an 8087 coprocessor chip installed in your computer. | | | CP/M-80 version 2.2 or later 48K RAM minimum (8087 and BCD features not available). |
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http://community.borland.com/article/0,1410,20792,00.html
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| | [No title] |
| | The 8087 family of math processors and the Microsoft emulator library implement this format. | | | Microsoft languages conform to the Microsoft Relocatable Object-Module Format (OMF), which is based on the Intel 8086 OMF. | | | xe "aa" \z "GLOSSW.DOC-1337" 8087 family of math processors XE "8087 processors:defined" \z "GLOSSW.DOC-1004"XE "Math coprocessors:defined" \z "GLOSSW.DOC-1005"XE "Coprocessors:defined" \z "GLOSSW.DOC-1006" All math processors (also called math coprocessors) in the Intel 8087 family, including the 8087, 80287, and 80387 chips. |
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http://www.mathcs.sjsu.edu/faculty/kennedy/cs140/envtools/glossary.doc
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| | [No title] |
| | Part of its appeal arose from its early availability on Intel x86-based IBM PCs and their clones, the hardware most widely used by engineers and scientists for their numerical computations nowadays. | | | Mathematically dense circuitry is also found in Intel's 8087 coprocessor chip... | | | 28 The Intel 8087 Numeric Coprocessor's Marketing Vicissitudes 29 Floating-Point Arithmetic for a Mass Market... |
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http://www.cs.berkeley.edu/~wkahan/abstrcts.txt
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| | [No title] |
| | The first implementation was the Intel 8087 on which the original IBM PC was based in 1981. | | | Since then, Intel IA-32 (formerly x86), i860, i960 and IA-64, Convex, HP/Compaq/DEC Alpha, HP PA-RISC, IBM Power and PowerPC, Motorola 68K and 88K, SGI MIPS, Sun SPARC, and most other CPUs (even on embedded systems) with floating-point point support adhere to at least part of the IEEE 754 specification. | | | All Cray supercomputers manufactured since the early 1990s have used IEEE 754 arithmetic. |
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http://www.math.utah.edu/pub/zsh/README.NONSTOP-FP
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| | Just Too Good - Darren's PC / Hardware Technical Resource |
| | CPU History - From the Intel 4004, to 8080, 8086, 8088 and 8087, to the 286 and the value of protected mode | | | The site is predominantly a PC hardware information resource, covering many IT topics including: hardware, PC system architecture, the CPU (featuring AMD and Intel chips, e.g. | | | 32-bit Computing - From Intel 80386 to 486 and CPUs from rival manufacturers |
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http://www.just2good.co.uk/index.php?ITFrameSet.php?cpuHistory.htm
(1114 words)
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| | Floating point - Free Encyclopedia |
| | A few machines offer larger sizes; Intel FPUs such as the Intel 8087 (and its descendants integrated into the x86 architecture) offer 80 bit floating point numbers for intermediate results, and several systems offer 128 bit floating-point, generally implemented in software. | | | Floating-point numbers usually behave very similarly to the real numbers they are used to approximate. |
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http://www.wacklepedia.com/f/fl/floating_point_1.html
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| | [No title] |
| | RESPONSE 5 Feb Intel 8088 Inst & Architecture TWO-PORT NETWORK GAIN(7.3) AND LOOP GAIN ANALYSIS(8.3) 12 Feb Intel 8087, Intel 8087, 80386, TWO-PORT NETWORK GAIN AND 80486, Pentium LOOP GAIN CONT'D 19 Feb Stepper Motor, Review, Hour Exam MACROMODELS TO CIRCUITS Review (Time set by Class) 26 Feb Stepper Motors, Intro. | | | Robotics MACROMODELS TO CIRCUITS, cont'd 5 Mar Ch.3 Intrfac. | | | Choisser & John O. Foster, Inside the PC, 6th ed., Peter Norton, iNTEL Handouts. |
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http://www.acs.appstate.edu/dept/physics/courses/4635SH01.txt
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| | AP-258 High Speed Numerics with the 80186/80188 and 8087 |
| | From their introduction in 1982, the highly integrated 16-bit 80186 and its 8-bit external bus version, the 80188, have been ideal processor choices for high-performance, low-cost embedded control applications. | | | The integrated peripheral functions and enhanced 8086 CPU of the 80186 and 80188 allow for an easy upgrade of older generation control applications to achieve higher performance while lowering the overall system cost through reduced board space, and a simplified production flow. | | | AP-258 High Speed Numerics with the 80186/80188 and 8087 |
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http://www.intel.com/design/intarch/applnots/231590.htm
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| | 8028x > IntelD80287-6 |
| | The Intel 80287 was produced at speeds ranging | | | The 80287 may run asynchronously from the main | | | Intel 80287 is a co-processor for 80286 family of |
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http://www.cpushack.net/chippics/Intel/8028x/IntelD80287-6.html
(113 words)
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