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- Floating-point_unit abstract "A floating-point unit (FPU, colloquially a 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, square root, bitshifting. Some systems (particularly older, microcode-based architectures) can also perform various transcendental functions such as exponential or trigonometric calculations, though in most modern processors these are done with software library routines.In a general purpose computer architectures, one or more FPUs may be integrated with the central processing unit; however many embedded processors do not have hardware support for floating-point operations.When a CPU is executing a program that calls for a floating-point operation, there are three ways to carry it out: A floating-point unit emulator (a floating-point library) Add-on FPU Integrated FPUSome systems implemented floating point via a coprocessor rather than as an integrated unit. This could be a single integrated circuit, an entire circuit board or a cabinet. Where floating-point calculation hardware has not been provided, floating point calculations are done in software, which takes more processor time but which avoids the cost of the extra hardware. For a particular computer architecture, the floating point unit instructions may be emulated by a library of software functions; this may permit the same object code to run on systems with or without floating point hardware. Emulation can be implemented on any of several levels: in the CPU as microcode (not a common practice), as an operating system function, or in user space code. When only integer functionality is available the CORDIC floating point emulation methods are most commonly used.In most modern computer architectures, there is some division of floating-point operations from integer operations. This division varies significantly by architecture; some, like the Intel x86 have dedicated floating-point registers, while some take it as far as independent clocking schemes.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. Since the early and mid-1990s, many microprocessors for desktops and servers have more than one FPU.".
- Floating-point_unit thumbnail KL_Intel_C80287.jpg?width=300.
- Floating-point_unit wikiPageID "37096".
- Floating-point_unit wikiPageRevisionID "600732629".
- Floating-point_unit hasPhotoCollection Floating-point_unit.
- Floating-point_unit subject Category:Central_processing_unit.
- Floating-point_unit subject Category:Computer_arithmetic.
- Floating-point_unit comment "A floating-point unit (FPU, colloquially a 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, square root, bitshifting.".
- Floating-point_unit label "FPU".
- Floating-point_unit label "Floating-point unit".
- Floating-point_unit label "Floating-point unit".
- Floating-point_unit label "Gleitkommaeinheit".
- Floating-point_unit label "Koprocesor".
- Floating-point_unit label "Unidad de coma flotante".
- Floating-point_unit label "Unidade de ponto flutuante".
- Floating-point_unit label "Unità di calcolo in virgola mobile".
- Floating-point_unit label "Unité de calcul en virgule flottante".
- Floating-point_unit label "Математический сопроцессор".
- Floating-point_unit label "وحدة الفاصلة العائمة".
- Floating-point_unit label "浮点运算器".
- Floating-point_unit sameAs Matematický_koprocesor.
- Floating-point_unit sameAs Gleitkommaeinheit.
- Floating-point_unit sameAs Μονάδα_Κινητής_Υποδιαστολής.
- Floating-point_unit sameAs Unidad_de_coma_flotante.
- Floating-point_unit sameAs Unité_de_calcul_en_virgule_flottante.
- Floating-point_unit sameAs Unit_titik_mengambang.
- Floating-point_unit sameAs Unità_di_calcolo_in_virgola_mobile.
- Floating-point_unit sameAs FPU.
- Floating-point_unit sameAs 부동_소수점_장치.
- Floating-point_unit sameAs Floating-point_unit.
- Floating-point_unit sameAs Koprocesor.
- Floating-point_unit sameAs Unidade_de_ponto_flutuante.
- Floating-point_unit sameAs m.097y_.
- Floating-point_unit sameAs Q733507.
- Floating-point_unit sameAs Q733507.
- Floating-point_unit wasDerivedFrom Floating-point_unit?oldid=600732629.
- Floating-point_unit depiction KL_Intel_C80287.jpg.
- Floating-point_unit isPrimaryTopicOf Floating-point_unit.
