About: Predication (computer architecture)

Facets (new session)
Description
Metadata
Settings
- Rule:
- Inverse Functional Properties:
- "Same As":

About: Predication (computer architecture) Goto Sponge NotDistinct Permalink

An Entity of Type : owl:Thing, within Data Space : dbpedia.org associated with source document(s)
QRcode icon

http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FPredication_%28computer_architecture%29

In computer science, predication is an architectural feature that provides an alternative to conditional transfer of control, as implemented by conditional branch machine instructions. Predication works by having conditional (predicated) non-branch instructions associated with a predicate, a Boolean value used by the instruction to control whether the instruction is allowed to modify the architectural state or not. If the predicate specified in the instruction is true, the instruction modifies the architectural state; otherwise, the architectural state is unchanged. For example, a predicated move instruction (a conditional move) will only modify the destination if the predicate is true. Thus, instead of using a conditional branch to select an instruction or a sequence of instructions to ex

Attributes	Values
rdf:type	Thing
rdfs:label	Predication (computer architecture) (en)
rdfs:comment	In computer science, predication is an architectural feature that provides an alternative to conditional transfer of control, as implemented by conditional branch machine instructions. Predication works by having conditional (predicated) non-branch instructions associated with a predicate, a Boolean value used by the instruction to control whether the instruction is allowed to modify the architectural state or not. If the predicate specified in the instruction is true, the instruction modifies the architectural state; otherwise, the architectural state is unchanged. For example, a predicated move instruction (a conditional move) will only modify the destination if the predicate is true. Thus, instead of using a conditional branch to select an instruction or a sequence of instructions to ex (en)
differentFrom	Branch prediction
dcterms:subject	Conditional constructs Instruction processing
Wikipage page ID	199439 (xsd:integer)
Wikipage revision ID	1123647567 (xsd:integer)
Link from a Wikipage to another Wikipage	PowerPC Predicate logic Processor register Electrologica X1 Bitwise operation Boolean data type Vector processors Delay slot Instruction pipelining Instruction scheduling GPU Pentium Pro Conditional (computer programming) Control-flow graph SIMD SPARC Branch (computer science) Branch predictor Control flow Control unit Conditional constructs MIPS architecture Machine language Computer architecture Computer program Computer science Z22 (computer) ZEBRA (computer) Embedded system Pipeline (computing) Mailüfterl Pipeline stall Speculative execution CPU cache Instruction processing Datapath ARM architecture AVX-512 AVX2 DEC Alpha Central processing unit Flynn's taxonomy PA-RISC Profiling (computer programming) ACS-1 Hewlett-Packard Vector processor Software pipelining Digital Equipment Corporation IBM IBM POWER instruction set architecture Instruction-level parallelism Instruction (computer science) Intel Optimizing compiler X86 Mask (computing) Single instruction, multiple threads Condition code register IA-64 Very long instruction word Pseudocode Vector processing Thumb-2 Branch prediction
sameAs	Predication (computer architecture) Predication (computer architecture) Predication (computer architecture)
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Clarify dbt:Distinguish dbt:Div_col dbt:Div_col_end dbt:More_citations_needed dbt:Reflist dbt:Short_description dbt:Google_books
has abstract	In computer science, predication is an architectural feature that provides an alternative to conditional transfer of control, as implemented by conditional branch machine instructions. Predication works by having conditional (predicated) non-branch instructions associated with a predicate, a Boolean value used by the instruction to control whether the instruction is allowed to modify the architectural state or not. If the predicate specified in the instruction is true, the instruction modifies the architectural state; otherwise, the architectural state is unchanged. For example, a predicated move instruction (a conditional move) will only modify the destination if the predicate is true. Thus, instead of using a conditional branch to select an instruction or a sequence of instructions to execute based on the predicate that controls whether the branch occurs, the instructions to be executed are associated with that predicate, so that they will be executed, or not executed, based on whether that predicate is true or false. Vector processors, some SIMD ISAs (such as AVX2 and AVX-512) and GPUs in general make heavy use of predication, applying one bit of a conditional mask Vector to the corresponding elements in the Vector registers being processed, whereas scalar predication in scalar instruction sets only need the one predicate bit. Where Predicate Masks become particularly powerful in Vector processing is if an array of Condition Codes, one per Vector element, may feed back into Predicate Masks that are then applied to subsequent Vector instructions. (en)
prov:wasDerivedFrom	wikipedia-en:Predication_(computer_architecture)?oldid=1123647567&ns=0
page length (characters) of wiki page	13137 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Predication_(computer_architecture)
is Link from a Wikipage to another Wikipage of	Branch predication Bit manipulation Branch (computer science) Samplesort ARM architecture family Flynn's taxonomy Predicate Itanium Vector processor RISC-V Mask (computing)

Faceted Search & Find service v1.17_git139 as of Feb 29 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 67 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software