Definition of Instruction address register

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Instruction Address Register
(IAR) The IBM name for program counter.
The IAR can be accessed by way of a supervisor call in supervisor state, but cannot be directly addressed in problem state.
(1995-03-21)

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Instruction address register definition was found in categories: Language, Idioms & Slang(1)  

Instruction address register Definition from Language, Idioms & Slang Dictionaries & Glossaries

hEnglish - advanced version
instruction address register

instruction address register
(iar) the ibm name for program counter.