Comments (2)
liumeng009
commented on June 29, 2024
2
@mengyou658 "SP 指针寄存器，永远指向当前的栈顶。注意的是由于栈是位于高地址并向低地址增长的，所以入栈时 SP 的值减小。"
*sp取出栈顶的值后，由于是向低地址增长（也就是--代表增长）sp++代表踢出栈顶元素，也就是退栈
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mengyou658
commented on June 29, 2024
谢谢啦
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