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Floating-point unit

A floating-point unit (FPU), numeric processing unit (NPU), colloquially math coprocessor, is a part of a computer system specially designed to carry out operations on floating-point numbers. Typical operations are addition, subtraction, multiplication, division, and square root. Modern designs generally include a fused multiply-add instruction, which…

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Overview

History

Floating-point library

Integrated FPUs

  • SIMD Single instruction, multiple data
  • SSE Streaming SIMD Extensions
  • X86-64

Add-on FPUs

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Floating-point unit

Nodes95
Edges94
Triples17
Avg. degree1.98
Density0.021053
Components1

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Floating-point unit

Top relations

related to Add-on FPUs · 14
Floating-point unit → CPU, FPU, IBM PC/compatible, In, It, MicroPDP-11/23, PDP-11, PDP-11/34a, PDP-11/44, PDP-11/45, PDP-11/70, Several, The PDP-11/60, VAX

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Important terminology

floating-point operations fpu software cpu instructions fpus unit hardware systems microcode arithmetic series coprocessor point machines designs include common like

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
exponential or trigonometric calculationsinstance ofSome FPUs can also perform various transcendental functions0.80text
but the accuracy can be lowinstance ofSome FPUs can also perform various transcendental functions0.80text
so some systems prefer to compute these functions in software.Floating-point operations were originally handled in software in early computersinstance ofSome FPUs can also perform various transcendental functions0.80text
Floating-point unitrelated to Add-on FPUsSeveral0.60section
Floating-point unitrelated to Add-on FPUsPDP-110.60section
Floating-point unitrelated to Add-on FPUsPDP-11/450.60section
Floating-point unitrelated to Add-on FPUsPDP-11/34a0.60section
Floating-point unitrelated to Add-on FPUsPDP-11/440.60section
Floating-point unitrelated to Add-on FPUsPDP-11/700.60section
Floating-point unitrelated to Add-on FPUsThe PDP-11/600.60section
Floating-point unitrelated to Add-on FPUsMicroPDP-11/230.60section
Floating-point unitrelated to Add-on FPUsVAX0.60section

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