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The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), the instruction counter, or just part of the instruction sequencer, is a processor register that indicates where a computer is in its program sequence. Usually, the PC is incremented after fetching an instruction, and holds the memory address of ("points to") the next instruction that would be executed.

Attributes	Values
rdf:type	building
rdfs:label	Program counter (en)
rdfs:comment	The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), the instruction counter, or just part of the instruction sequencer, is a processor register that indicates where a computer is in its program sequence. Usually, the PC is incremented after fetching an instruction, and holds the memory address of ("points to") the next instruction that would be executed. (en)
sameAs	Program counter Program counter
dbp:wikiPageUsesTemplate	dbt:CPU_technologies dbt:Reflist dbt:Refn dbt:Use_dmy_dates dbt:X86_assembly_topics
Subject	Central processing unit Control flow Digital registers
gold:hypernym	Register
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Program_counter?oldid=985902974&ns=0
Wikipage page ID	59944 (xsd:integer)
page length (characters) of wiki page	11968 (xsd:nonNegativeInteger)
Wikipage revision ID	985902974 (xsd:integer)
has abstract	The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), the instruction counter, or just part of the instruction sequencer, is a processor register that indicates where a computer is in its program sequence. Usually, the PC is incremented after fetching an instruction, and holds the memory address of ("points to") the next instruction that would be executed. Processors usually fetch instructions sequentially from memory, but control transfer instructions change the sequence by placing a new value in the PC. These include branches (sometimes called jumps), subroutine calls, and returns. A transfer that is conditional on the truth of some assertion lets the computer follow a different sequence under different conditions. A branch provides that the next instruction is fetched from elsewhere in memory. A subroutine call not only branches but saves the preceding contents of the PC somewhere. A return retrieves the saved contents of the PC and places it back in the PC, resuming sequential execution with the instruction following the subroutine call. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Program_counter
is Wikipage redirect of	Program Counter Current instruction Current instruction pointer Next instruction Next instruction address Next instruction address register Next instruction pointer Next instruction pointer register Instruction address register Instruction counter Instruction pointer Instruction pointer register Program register Programme counter
is Link from a Wikipage to another Wikipage of	Little Computer 3 NAR 2 Nord-10 1-bit computing 26-bit computing APEXC ARM architecture family Addressing mode Alpha 21464 Apollo Guidance Computer Arbitrary code execution Atlas (computer) Automata-based programming Bank switching Barrel processor Monitor (synchronization) Brainfuck Branch (computer science) Branch predictor Branch table Busy waiting CER-12 COP8 CPU Sim Call gate (Intel) Central processing unit Distributed operating system Duff's device Jazelle Malbolge Classic RISC pipeline Crash (computing) Current instruction Current instruction pointer DEC Alpha DOS memory management Delay slot Hot spot (computer programming) Comparison of programming languages (syntax) Computer Computer hardware Computer program Task switching Control flow Control table Core War Core dump Coroutine Hewlett-Packard Nanoprocessor Microarchitecture Microcode Motherboard Motorola 6809 Motorola 68HC05 Motorola 68HC08 Motorola 68HC11 Motorola MC14500B Motorola S08 National Semiconductor SC/MP Next instruction Next instruction address Next instruction address register Next instruction pointer Next instruction pointer register Data General Nova Dataflow architecture

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