|
Program counter - Wikipedia, the free encyclopedia
The program counter , or PC (also called the instruction pointer , or instruction address register , or just part of the instruction sequencer in some computers) is a processor register that i...
en.wikipedia.org/wiki/Program_counter |
|
|||
|
|||
|
|||
|
In particular, when the register is the program counter (PC), which indicates the address of the instruction currently being executed (i.e. program counter (PC) address), the target location is relative to the location of the branch instruction.
|
|||
|
PC Program Counter (points to next instruction); IR Instruction Rgeister ("Value" of current instruction); SR Status Register (Status flags after executing instructions); SP Stack Pointer (points to next free location on the stack);
|
|||
|
Program counter The Program Counter (PC) stores the location of the next instruction to be fetched. It consists of an 8-bit register and an adder. It is loaded from the B bus, and its output is sent via the A bus to the system address bus.
|
|||
|
The program counter. On OpenVMS VAX systems, this is the address of the next instruction the CPU will execute. On OpenVMS Alpha systems, this value is displayed as 0, because the data is not readily available to the Data Provider node.
|
|||
|
PC Program counter (PC), a special register that addresses the instruction stream, which is not accessible as an integer register ... A function, unlike a subroutine, can also return a value to the calling program by assigning the value to the function's name. The method that function procedures use to return values...
|
|||
|
Get this RSS feed ... All Recent | Unanswered ... Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to...
|
Copyright © 2009, Dictionary.com, LLC. All rights reserved.
Related Topics
