| 21. | The contents of the updated program counter are copied into the register X in step 2.
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| 22. | Resetting the Program Counter to zero effectively restarts the program, albeit in a potentially different state.
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| 23. | When a branch is " taken ", the CPU's program counter is set to the memory.
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| 24. | Each PSU has a backup program counter.
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| 25. | Each program level had its own set of registers, including a program counter and a status word.
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| 26. | Instead, Branch instructions exist that save the program counter to a register and change the register context.
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| 27. | PC stands not only for personal computer and politically correct but also printed circuit and program counter.
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| 28. | H1, for example, is the program counter.
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| 29. | Six of those registers were general registers, one was the program counter, and the other contained status information.
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| 30. | Unconditional branches update the program counter with a new address computed in the same way as conditional branches.
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