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  2. Program status word - Wikipedia

    en.wikipedia.org/wiki/Program_status_word

    Contained within the PSW are the two bit condition code, representing zero, positive, negative, overflow, and similar flags of other architectures' status registers. Conditional branch instructions test this encoded as a four bit value, with each bit representing a test of one of the four condition code values, 2 3 + 2 2 + 2 1 + 2 0. (Since IBM ...

  3. Status register - Wikipedia

    en.wikipedia.org/wiki/Status_register

    A status register, flag register, or condition code register (CCR) is a collection of status flag bits for a processor.Examples of such registers include FLAGS register in the x86 architecture, flags in the program status word (PSW) register in the IBM System/360 architecture through z/Architecture, and the application program status register (APSR) in the ARM Cortex-A architecture.

  4. List of airline codes (P) - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes_(P)

    Canada PRV Provincial Express: PROVINCIAL Canada PSW Pskovavia: PSKOVAVIA Russia UDA Psudiklat Perhubungan Udara/PLP: UDARA Indonesia PTA Ptarmigan Airways: PTARMIGAN Canada PSP Publiservicios Aéreos: PUBLISERVICIOS Mexico PUV Publivoo: PUBLIVOO Portugal Publicidade e Imagens Aéreas PNG Puerto Rico National Guard: United States TXV Puerto ...

  5. IBM System/360 architecture - Wikipedia

    en.wikipedia.org/wiki/IBM_System/360_architecture

    code to indicate the type of interruption, inserted when the PSW is stored, during IPLoad, this is the address of the device from which the program was loaded [14] 32-33 Instruction Length Code length in halfwords or 0 if unavailable 34-35 Condition Code see individual instructions for encoding 36-39 Program Mask

  6. PDP-11 architecture - Wikipedia

    en.wikipedia.org/wiki/PDP-11_architecture

    The high-order byte of the instruction specifies the operation. Bits 9 through 15 are the op-code, and bit 8 is the value of the condition code calculation which results in the branch being taken. The low-order byte is a signed word offset relative to the current location of the program counter. This allows for forward and reverse branches in code.

  7. PSW - Wikipedia

    en.wikipedia.org/wiki/PSW

    PSW may refer to: PSW Science, the oldest scientific society in Washington, D.C. Personal Support Worker, Canada; PlayStation World, a UK magazine; Program status word, a control register in IBM mainframe computers; Baillie–PSW primality test in mathematics; Part Submission Warrant in production part approval process; Post Study Work Visa, UK

  8. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    External ARTCC subset. (Block of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 1400 Canada: VFR flight above 12,500' ASL when no other code has been assigned. [7] Japan: VFR flight above 10,000' MSL when no other code has been assigned. [citation needed] US: External ARTCC subset.

  9. List of airline codes - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes

    Former name: Atlantic Air Transport; former IATA codes: 7M, DG, transferred to Atlantic Flight Training in 2014. QB AAJ Air Alma: AIR ALMA Canada Ceased operations 10/01/2002; former IATA code: 4L ACS Air Cess: Liberia defunct ADT Air Dorval: AIR DORVAL Canada defunct AHN Air Hungaria: AIR HUNGARIA Hungary AHR Air Adriatic: ADRIATIC Croatia ...