VDict - Definition of Instruction Address Register

Computing (FOLDOC) dictionary

Instruction Address Register

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(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

(1995-03-21)

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Words contain "Instruction Address Register" in its definition in Computing (FOLDOC) dictionary:
indirect address program counter addressing mode fetch-execute cycle linear address space machine cycle protected mode TMS 9900 death code Motorola 68000 more...

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