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Name Description HED: Heading: Separates programs, possibly written separately, which are being assembled together. It can specify a character to be appended to symbol names in this section to avoid naming conflicts. REL: Relocatable Library Program: Defines the start of a relocatable library program being assembled ahead of the main program.
The application program interfaces of IBM's mainframe operating systems is defined as a set of assembly language "macro" instructions, that typically invoke Supervisor Call (SVC) [e.g., on z/OS] or Diagnose (DIAG) [on, e.g., z/VM] instructions to invoke operating system routines. It is possible to use operating system services from programs ...
The output is binary data in the twelve card rows 12, 11, and 0–9. Each row contains two 36-bit words in columns 1-36 and 37-72, indicated as left (L) and right (R) respectively. Data is conventionally numbered by row and position, for example, columns 1 to 36 of row 9 are designated 9L, columns 37 to 72 of the same row are 9R.
Model 204 is commonly used in government and military applications. [8] [9] [10]It was used commercially in the UK by Marks & Spencer. [citation needed] It was also used at the Ventura County Property Tax system in California, [11] the Harris County, Texas, Justice Information Management System, [12] and in the New York City Department of Education's Automate The Schools system.
Control Program Facility (CPF) is the operating system of the IBM System/38. [3] CPF represented an independendent line of development at IBM Rochester , and was unrelated to the earlier and more widely used System Support Program operating system.
The Control Language (CL) is a scripting language originally created by IBM for the System/38 Control Program Facility [1] and later used in OS/400 (now known as IBM i). It bears a resemblance to the IBM Job Control Language and consists of a set of command objects (*CMD) used to invoke traditional programs or get help on what those programs do.
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The program status word [a] (PSW) is a register that performs the function of a status register and program counter, and sometimes more. The term is also applied to a copy of the PSW in storage. The term is also applied to a copy of the PSW in storage.