Search Results: FDIV

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Pentium FDIV bug
Sabtu, 2026-08-08 02:26:23

The Pentium FDIV bug is a hardware bug affecting the floating-point unit (FPU) of the early Intel Pentium processors. Because of the bug, the processor...

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Erratum
Kamis, 2025-07-24 00:13:09

"FDIV" erratum in early Pentium processors, known as the Pentium FDIV bug. This gave incorrect answers to a floating-point division instruction (FDIV)...

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Brun's theorem
Selasa, 2026-06-09 05:24:07

By calculating the twin primes up to 1014 (and discovering the Pentium FDIV bug along the way), Nicely heuristically estimated Brun's constant to be...

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Intel
Minggu, 2026-08-09 02:14:49

Intel's 1994 revenue. Nicely later learned that Intel had discovered the FDIV bug in its own testing a few months before him (but had decided not to inform...

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Computer
Minggu, 2026-07-12 07:42:04

produces unexpected results in certain situations. For instance, the Pentium FDIV bug caused some Intel microprocessors in the early 1990s to produce inaccurate...

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Emotion Engine
Minggu, 2026-05-03 00:41:10

floating point multiply-accumulate (FMAC) units, a floating point divide (FDIV) unit and a local data memory. The data memory for VPU0 is 4 KB in size,...

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X87
Rabu, 2026-07-01 03:31:57

FADDP, FIADD, FSUB, FSUBP, FISUB, FSUBR, FSUBRP, FISUBR, FMUL, FMULP, FIMUL, FDIV, FDIVP, FIDIV, FDIVR, FDIVRP, FIDIVR, and FSQRT. Numbers are taken from respective...

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PlayStation 2 technical specifications
Sabtu, 2026-05-23 08:39:32

upper execution unit containing 4 × FMAC and lower execution unit containing FDIV, integer ALU, load-store unit, branch logic, 16 16-bit integer registers...

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Vaughan Pratt
Sabtu, 2026-01-24 11:53:47

credited in a 1995 Byte magazine article for proposing that the Pentium FDIV bug might have worse consequences than either Intel or IBM was predicting...

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List of Intel Pentium processors
Minggu, 2026-06-14 20:32:30

processors do not have FDIV bug) Based on P5 microarchitecture Steppings: B1, B3, B5, C2, E0 (Note: D1 stepping processors do not have FDIV bug) Based on P5...

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Comparison of EDA software
Rabu, 2026-08-05 19:51:36

Errors may be present in the high-level code already, such as for the Pentium FDIV floating-point unit bug, or it can be inserted all the way down to physical...

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Pentium F00F bug
Selasa, 2026-06-30 10:22:23

affected processor versions. CMPXCHG8B Denial-of-service attack Pentium FDIV bug Meltdown (security vulnerability) Spectre (security vulnerability) Collins...

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BIOS
Jumat, 2026-07-17 08:45:26

an expensive processor swap would be required; for example, the Pentium FDIV bug became an expensive fiasco for Intel as it required a product recall...

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Floating-point arithmetic
Jumat, 2026-08-07 20:53:33

compilers were developed that could avoid the failing cases. See Pentium FDIV bug. But an attempted computation of cos ⁡ ( π ) {\displaystyle \cos(\pi...

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Nicely
Jumat, 2025-06-20 18:26:30

Ray Nicely [de] (1943–2019), US mathematician, discoverer of the Pentium FDIV bug Niceley, people with this surname This page lists people with the surname...

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Automated theorem proving
Minggu, 2026-08-02 23:28:48

concentrated in integrated circuit design and verification. Since the Pentium FDIV bug, the complicated floating point units of modern microprocessors have...

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Intel microcode
Jumat, 2026-06-05 20:13:11

debugging under its design for testing (DFT) initiative. Following the Pentium FDIV bug, the patchable microcode function took on a wider purpose to allow in-field...

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J Strother Moore
Rabu, 2026-04-01 03:37:15

division operations of the AMD K5 microprocessor in the wake of the Pentium FDIV bug. For his contributions to automated deduction, Moore received the 1999...

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Pentium (original)
Minggu, 2026-08-02 19:30:19

Nicely at Lynchburg College, Virginia, became widely known as the Pentium FDIV bug and caused embarrassment for Intel, which created an exchange program...

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Microcode
Selasa, 2026-07-07 07:29:11

design Finite-state machine (FSM) Firmware Floating-point unit (FPU) Pentium FDIV bug Instruction pipeline Microsequencer MikroSim Millicode Superscalar IBM...

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Pentium
Selasa, 2026-07-21 18:15:59

embedded applications List of Intel Pentium processors Intel Inside Pentium FDIV bug, a well-publicized flaw in the original processor Performance Rating...

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Type 076 landing helicopter dock
Selasa, 2026-08-04 08:23:01

Video released by CCTV of Sichuan's launch https://www.youtube.com/watch?v=utMO_tFdivU...

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List of x86 instructions
Jumat, 2026-06-26 11:12:48

Intel Pentium processors, floating-point divide was subject to the Pentium FDIV bug. This also affected instructions that perform divide as part of their...

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Hardware bug
Kamis, 2024-11-14 13:43:57

CPUs had two well-known bugs discovered after it was brought to market, the FDIV bug affecting floating point division which resulted in a recall in 1994...

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ACL2
Jumat, 2026-04-24 04:16:57

division operation of the AMD K5 microprocessor in the wake of the Pentium FDIV bug. Industrial users of ACL2 include AMD, Arm, Centaur Technology, IBM,...

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University of Lynchburg
Kamis, 2026-06-18 05:04:35

related to the distribution of prime numbers and discovered the Pentium FDIV bug. Nicely left Lynchburg College in 2000. In July 2018, the university...

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Division algorithm
Jumat, 2026-07-03 06:48:06

precision) are employed. Galley division Multiplication algorithm Pentium FDIV bug Despite how "little" problem the optimization causes, this reciprocal...

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Long double
Jumat, 2026-06-26 16:17:22

FADDP, FIADD, FSUB, FSUBP, FISUB, FSUBR, FSUBRP, FISUBR, FMUL, FMULP, FIMUL, FDIV, FDIVP, FIDIV, FDIVR, FDIVRP, FIDIVR, and FSQRT. Brian J. Gough and Richard...

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Integrated circuit design
Sabtu, 2026-08-08 07:58:20

error here can make the whole chip useless, or worse. The famous Pentium FDIV bug caused the results of a division to be wrong by at most 61 parts per...

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Meltdown (security vulnerability)
Jumat, 2026-07-17 02:57:08

to have a major security vulnerability in 2017 Pentium F00F bug Pentium FDIV bug Row hammer – an unintended side effect in dynamic random-access memory...

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Product recall
Sabtu, 2026-07-18 06:02:19

Worldwide: Intel recalled the original Pentium processors due to the Pentium FDIV bug. USA: October: Over 500,000 Santa Barney Pom-Pom plush toys recalled...

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List of JVM bytecode instructions
Minggu, 2026-07-19 23:19:05

push 1.0f on the stack fconst_2 0d 0000 1101 → 2.0f push 2.0f on the stack fdiv 6e 0110 1110 value1, value2 → result divide two floats fload 17 0001 0111...

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PDP-11 architecture
Senin, 2026-06-08 22:17:55

4(Rn) - (Rn), Rn ← Rn + 4 07502 FMUL Floating Multiply: 4(Rn) ← 4(Rn) × (Rn), Rn ← Rn + 4 07503 FDIV Floating Divide: 4(Rn) ← 4(Rn) ÷ (Rn), Rn ← Rn + 4...

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Vortex86
Selasa, 2026-01-06 16:57:12

family  : 5 model  : 0 model name  : 05/00 stepping  : 5 cpu MHz  : 199.978 fdiv_bug  : no hlt_bug  : no f00f_bug  : no coma_bug  : no fpu  : yes fpu_exception...

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IBM 1620
Rabu, 2026-06-24 10:00:00

 8 FSR Floating Shift Right Optional special feature. invalid   Ж ❚    81 FDIV Floating Divide Optional special feature. + + + +  X0C  X0C 12 12 1   BTAM...

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Quartz Composer
Selasa, 2026-06-09 01:06:47

Release Notes Quartz Composer User Guide - Patches[permanent dead link] fdiv.net: Xcode Template for Custom Quartz Composer Patches Uniform Type Identifiers...

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Hardware trojan
Minggu, 2026-07-26 20:45:18

measured values is evaluated to avoid measurement errors or other inaccuracies. FDIV Hardware backdoor Hardware obfuscation Hardware security Intel Management...

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WD16
Kamis, 2026-07-23 21:28:04

subtract: Dest ← Dest - Src F200 FMUL Floating Multiply: Dest ← Dest × Src F300 FDIV Floating Divide: Dest ← Dest ÷ Src F400 FCMP Floating Compare: Dest - Src...

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