| 释义 |
栈顶指针 以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译 1 ?堆栈顶指针 ... top of stack，TOS 堆栈顶 top of stack control word，TOSCW 堆栈顶控制字 top of stack pointer，TOSP 堆栈顶指针 ...
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This simple design, possible because the data obeys strict LIFO order, means that no complex data structure is needed to track stack contents - a simple pointer to the top of the stack will do. 这种简单的设计，很有可能是考虑到数据操作都符合后进先出（LIFO ）规则，这意味着访问栈的内容并不需要复杂的数据结构，一个简单的栈顶指针就能搞定一切。 - 2
So, the code loops back, points to the proper top pointer (which was changed because of Thread b), invokes CAS, and is done with pushing 20 into the stack. 因此，代码回到循环的开头，指向正确的top指针(线程b修改后的)，调用CAS，把20压入堆栈后结束。 - 3
If a function is executing, then the stack pointer is pointing to the top of the whole stack, which is also the top of that function's activation record. 如果一个函数正在执行，那么堆栈指针就会指向整个堆栈的顶部，这也是该函数活动记录的顶部。
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