Requirement of a program counter in 8085 microprocessor.
Program counter hold the address of either the first byte of the next instruction to be fetched for execution or the address of the next by byte of instruction. Which has been completely fetched. In both the cases it gets incremented automatically one by one as the instruction byte get fetched. Also program register keeps the address of next instruction.
Program counter hold the address of either the first byte of the next instruction to be fetched for execution or the address of the next by byte of instruction. Which has been completely fetched. In both the cases it gets incremented automatically one by one as the instruction byte get fetched. Also program register keeps the address of next instruction.
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