stack pointer


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stack pointer

[′stak ‚pȯint·ər]
(computer science)
A register which contains the last address of a stack of addresses.

stack pointer

(architecture, programming)
(SP) A register or variable pointing to the top of a stack.

stack pointer

An address that identifies the location of the most recent item placed on the stack. See stack trace.
References in periodicals archive ?
A dedicated register contains a stack pointer which indicates where to unwind the runtime stack to.
If we were simply to do the opposite of what was done for register saves in function prologs, the code resulting from procedural abstraction at each return block for a function might have the following structure, with three instructions to manage the control transfers and stack pointer update:
SP is the stack pointer register that points to the top of the stack.
The new devices contain a number of important architectural features including 16 register banks for fast context switching, instruction pre-fetch, a 16-bit stack pointer over the entire memory space, 20 addressing modes, 16-bit program counter and five power saving modes (STOP, SLOW, IDLE1, IDLE2 and SLEEP).
An efficient but architecture-specific implementation of this test would be a comparison of the address of the table with the current stack pointer.
Other enhancements include double precision multiplication support, shadow registers for fast context switching, a dedicated software stack pointer, automatic boot procedure, single cycle min/max instruction and single cycle division seed generation.
Other features of the new MCUs include, 8 register banks for fast context switching, 32-bit stack pointer over the entire memory space, 20 addressing modes and five power saving modes.