Stack pointer and program counter. As mentioned, the PDP-11 keeps instructions and code in separate memory segments. The stack pointer, or SP, helps you manage data memory, ...

The accumulator-based 68HC08 provides a code-compatible performance extension to the 68HC05 along with 78 new instructions. Although the CPU has only an 8-bit accumulator, the index register, stack ...

In program debugging, a stack trace is a report of the computer's internal processing operations. It generally identifies the last routine called in the program before it crashed. See stack and ...