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Question
Explain Program counter.
Solution
Program counter :
(a) The program counter is 16-bit register acting as a pointer to next executable instruction.
(b) It always contains the 16-bit address of the memory location where next executable instruction is stored.
(c) The microprocessor uses this register to sequence the execution of instruction.
(d) The PC is autoincremented after a particular instruction has been fetched by the MPU.
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Instruction Set and Programming of 8085
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