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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. IBM System/360 architecture - Wikipedia

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

    There are two storage fields assigned to each class of interruption on the S/360; an old PSW double-word and a new PSW double-word. The processor stores the PSW, with an interruption code inserted, into the old PSW location and then loads the PSW from the new PSW location.

  5. 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

  6. Program-specific information - Wikipedia

    en.wikipedia.org/wiki/Program-specific_information

    The PSI data as defined by ISO/IEC 13818-1 (MPEG-2 Part 1: Systems) includes four tables: PAT (Program Association Table) CAT (Conditional Access Table) PMT (Program Mapping Table) NIT (Network Information Table) The MPEG-2 specification does not specify the format of the CAT and NIT. PSI is carried in the form of a table structure.

  7. Canadian postal abbreviations for provinces and territories

    en.wikipedia.org/wiki/Canadian_postal...

    While postal codes are also used for sorting, they allow extensive regional sorting. In addition, several provinces have postal codes that begin with different letters. The codes replaced the inconsistent traditional system used by Canadians until the 1990s. Apart from the postal abbreviations, there are no officially designated traditional (or ...

  8. Baillie–PSW primality test - Wikipedia

    en.wikipedia.org/wiki/Baillie–PSW_primality_test

    For example, Fermat pseudoprimes to base 2 tend to fall into the residue class 1 (mod m) for many small m, whereas Lucas pseudoprimes tend to fall into the residue class −1 (mod m). [1]: §6 [2]: Table 2 & §5 As a result, a number that passes both a strong Fermat base 2 and a strong Lucas test is very likely to be prime. If you choose a ...

  9. Canadian Electrical Code - Wikipedia

    en.wikipedia.org/wiki/Canadian_Electrical_Code

    The Canadian Electrical Code, CE Code, or CSA C22.1 is a standard published by the Canadian Standards Association pertaining to the installation and maintenance of electrical equipment in Canada. The first edition of the Canadian Electrical Code was published in 1927. [1] The current (26th) edition was published in March of 2024.