• Thumbnail for Program counter
    The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction...
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  • Thumbnail for Counterterrorism
    Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and...
    70 KB (6,321 words) - 06:51, 3 June 2025
  • Thumbnail for Instruction cycle
    is possible because the cycle is broken up into separate steps. The program counter (PC) is a register that holds the memory address of the next instruction...
    10 KB (1,255 words) - 07:48, 24 April 2025
  • Thumbnail for Central processing unit
    because of the incremented value in the program counter. If a jump instruction was executed, the program counter will be modified to contain the address...
    101 KB (11,424 words) - 02:20, 1 June 2025
  • Thumbnail for Operating system
    address of the next instruction, and set it back into the program counter. With the program counter now reset, the interrupted process will resume its time...
    70 KB (8,176 words) - 14:39, 31 May 2025
  • Thumbnail for Computer
    counter would cause the next instruction to be read from a place 100 locations further down the program. Instructions that modify the program counter...
    140 KB (14,125 words) - 23:29, 1 June 2025
  • Thumbnail for WDC 65C02
    8-bit microprocessor (8-bit registers and data bus) with a 16-bit program counter and address bus. The register set is small, with a single 8-bit accumulator...
    37 KB (4,396 words) - 15:24, 29 May 2025
  • Thumbnail for National Semiconductor SC/MP
    8080 or MOS 6502 which had parallel ALUs. Another oddity was that the program counter could only access the lower 12-bits of the 16-bit address, and the...
    20 KB (2,559 words) - 15:57, 13 June 2025
  • Thumbnail for Data General Nova
    pointed at by the program counter. Pressing START transferred the value currently set in data switches 1–15 to the program counter, and then began executing...
    65 KB (9,315 words) - 21:41, 12 May 2025
  • Thumbnail for Computer program
    it will push the value onto the computer's stack before setting the program counter back to the calling function. The calling function will then pop the...
    124 KB (13,091 words) - 23:57, 9 June 2025
  • assembly language, control flow instructions usually work by altering the program counter. For some central processing units (CPUs), the only control flow instructions...
    61 KB (6,038 words) - 19:45, 23 May 2025
  • Thumbnail for Little Man Computer
    resettable counter known as the Program Counter. The Program Counter holds the address of the next instruction the Little Man will carry out. This Program Counter...
    21 KB (2,206 words) - 02:03, 28 April 2025
  • Thumbnail for DEC Alpha
    The program counter is a 64-bit register which contains a longword-aligned virtual byte address, that is, the low two bits of the program counter are...
    63 KB (6,361 words) - 18:54, 23 May 2025
  • CPU state information including the registers, stack pointer, and program counter as well as memory management information like segmentation tables and...
    15 KB (1,963 words) - 07:06, 23 February 2025
  • Thumbnail for Fairchild F8
    indirect addressing. The 3851/3852/3853 contain the program counter, PC0, along with a secondary program counter, PC1. PC1 was referred to as a stack pointer...
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  • Thumbnail for State diagram
    are affected by the program commands being executed. Not only does the program counter change between different program counter locations, but variables...
    15 KB (1,958 words) - 10:30, 26 March 2025
  • opcode decoding, two illegal opcodes, 0x9D and 0xDD, will cause the program counter on the processor to increment endlessly, which locks the processor...
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  • of the program state; they usually include the program counter, also called the instruction pointer, and the status register; the program counter and status...
    37 KB (1,811 words) - 15:31, 1 May 2025
  • Thumbnail for ARM architecture family
    LR, the link register. R15 is also referred to as PC, the program counter. The Current Program Status Register (CPSR) has the following 32 bits. M (bits...
    142 KB (13,724 words) - 19:52, 15 June 2025
  • Thumbnail for WDC 65C816
    to the program counter (PC) to form the 24-bit effective address. Should PC "wrap" (return to zero), PB will not be incremented. Hence a program is bounded...
    29 KB (2,999 words) - 01:57, 13 April 2025
  • Thumbnail for Zilog Z80
    number strings in memory 16-bit subtraction and 8-bit negation program looping program counter (PC) relative jumps block copy, block input/output (I/O), and...
    118 KB (12,641 words) - 17:10, 15 June 2025
  • Thumbnail for Von Neumann architecture
    registers A control unit that includes an instruction register and a program counter Memory that stores data and instructions External mass storage Input...
    35 KB (4,246 words) - 15:37, 21 May 2025
  • Thumbnail for Apollo Guidance Computer
    current program, executing a short interrupt service routine, and then resuming the interrupted program. The AGC also had 20 involuntary counters. These...
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  • members of the Valve Cyber Café Program on August 11, 2004. On August 18, 2004, the beta was released to owners of Counter-Strike: Condition Zero and to...
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  • catalog parts. The TMS9900 has three internal 16-bit registers — the Program counter (PC), the Status register (ST), and the Workspace Pointer register...
    26 KB (2,903 words) - 20:54, 11 June 2025
  • alter the contents of the CPU's program counter (PC) (or instruction pointer on Intel microprocessors). The program counter maintains the memory address...
    13 KB (1,701 words) - 00:33, 15 December 2024
  • Thumbnail for MOS Technology 6502
    actual copy (from program counter to stack and then conversely) takes place before the automatic increment of the program counter that occurs at the...
    118 KB (11,764 words) - 02:32, 12 June 2025
  • CounterSpin (counterspin.tv) was a Canadian television program which was broadcast on CBC Newsworld from 1998 to 2004. A daily panel debate show, CounterSpin...
    2 KB (219 words) - 16:10, 24 July 2024
  • Thumbnail for Crash (computing)
    addresses, incorrect address values in the program counter, buffer overflow, overwriting a portion of the affected program code due to an earlier bug, executing...
    13 KB (1,424 words) - 06:49, 10 April 2025
  • Thumbnail for RCA 1802
    caller (SEP stands for Set Program Counter, and selects which one of the 16 registers is to be used as the program counter from that point onward). Before...
    54 KB (5,947 words) - 20:29, 4 June 2025