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  2. Stack (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Stack_(abstract_data_type)

    If a pop operation on the stack causes the stack pointer to move past the origin of the stack, a stack underflow occurs. If a push operation causes the stack pointer to increment or decrement beyond the maximum extent of the stack, a stack overflow occurs. Some environments that rely heavily on stacks may provide additional operations, for example:

  3. Stack register - Wikipedia

    en.wikipedia.org/wiki/Stack_register

    Typically push and pop are translated into multiple micro-ops, to separately add/subtract the stack pointer, and perform the load/store in memory. [3] Newer processors contain a dedicated stack engine to optimize stack operations. Pentium M was the first x86 processor to introduce a stack engine.

  4. Abstract data type - Wikipedia

    en.wikipedia.org/wiki/Abstract_data_type

    For example, a stack has push/pop operations that follow a Last-In-First-Out rule, and can be concretely implemented using either a list or an array. Another example is a set which stores values, without any particular order, and no repeated values. Values themselves are not retrieved from sets; rather, one tests a value for membership to ...

  5. Instruction set architecture - Wikipedia

    en.wikipedia.org/wiki/Instruction_set_architecture

    (In the examples that follow, a, b, and c are (direct or calculated) addresses referring to memory cells, while reg1 and so on refer to machine registers.) C = A+B 0-operand (zero-address machines), so called stack machines: All arithmetic operations take place using the top one or two positions on the stack: [9] push a, push b, add, pop c.

  6. Call stack - Wikipedia

    en.wikipedia.org/wiki/Call_stack

    For example, if a subroutine DrawSquare calls a subroutine DrawLine from four different places, DrawLine must know where to return when its execution completes. To accomplish this, the address following the instruction that jumps to DrawLine , the return address , is pushed onto the top of the call stack as part of each call.

  7. x86 assembly language - Wikipedia

    en.wikipedia.org/wiki/X86_assembly_language

    The addition, subtraction, multiplication, division, store and comparison instructions include instruction modes that pop the top of the stack after their operation is complete. So, for example, faddp st(1), st performs the calculation st(1) = st(1) + st(0) , then removes st(0) from the top of stack, thus making what was the result in st(1) the ...

  8. Pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Pushdown_automaton

    In each step, it chooses a transition by indexing a table by input symbol, current state, and the symbol at the top of the stack. A pushdown automaton can also manipulate the stack, as part of performing a transition. The manipulation can be to push a particular symbol to the top of the stack, or to pop off the top of the stack.

  9. pushd and popd - Wikipedia

    en.wikipedia.org/wiki/Pushd_and_popd

    The pushd ('push directory') command saves the current working directory to the stack then changes the working directory to the new path input by the user. If pushd is not provided with a path argument , it changes instead to the next directory from the top of the stack, [ clarification needed ] which can be used to toggle between two directories.