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mov ebp esp 指令如何不覆盖 ebp 的值

[英]How the instruction mov ebp esp does not overwrite the value of ebp

原文 2022-08-05 17:21:29 7 0 assembly/ cpu-registers

I know the question is maybe absurd for some people, but I am really stuck with the concept, and I can't find a proper answer to this.我知道这个问题对某些人来说可能很荒谬，但我真的坚持这个概念，我找不到正确的答案。 I do understand the meaning of the next set of instructions:我确实理解下一组指令的含义：

push ebp
mov ebp esp
......some code....
mov esp ebp
pop ebp

but people keep saying that ebp is restored to its previous value after the pop instruction, but how is it possible if但是人们一直说ebp在pop指令后恢复到以前的值，但是怎么可能？

mov ebp esp

actually overwrites the ebp register.实际上覆盖了 ebp 寄存器。 So to my understanding ebp ends up with a different value than in the beggining因此，据我了解，ebp 最终的值与开始时不同

0 个解决方案

mov esp, ebp 真的有必要吗？ - Is mov esp, ebp really necessary?

“输入”与“推送 ebp；mov ebp，esp；sub esp，imm”和“离开”与“mov esp，ebp；pop ebp” - "enter" vs "push ebp; mov ebp, esp; sub esp, imm" and "leave" vs "mov esp, ebp; pop ebp"

为什么我们在装配中的CALLEE中“推动EBP”和“MOV EBP，ESP”？ - Why do we “PUSH EBP” and “MOV EBP, ESP” in the CALLEE in Assembly?

当不需要清理时，避免“ push ebp，mov esp，ebp”的序幕 - Avoid “push ebp, mov esp, ebp” prologue when no cleanup is required

为什么“ push ebp”会改变ebp的值？ - Why does “push ebp” change the value of ebp?

此表达式的计算结果是：mov eax，[（ebp + 8）+ [ebp-25]] - What does this expression evaluates to: mov eax, [(ebp + 8) + [ebp - 25]]

为什么在x86程序集中执行“mov esp，ebp”？ - Why does leave do “mov esp,ebp” in x86 assembly?

执行新程序时，ESP和EBP寄存器如何工作？ - How does ESP and EBP registers act when a new program is executed?

反汇编代码中的ebp和esp是什么意思？ - What does ebp and esp in a disassembly code mean?

（x86）ESP的价值对EBP有所帮助吗？ - (x86) Is the value of ESP realtive to EBP, or not?

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相关问题 mov esp, ebp 真的有必要吗？ - Is mov esp, ebp really necessary? “输入”与“推送 ebp；mov ebp，esp；sub esp，imm”和“离开”与“mov esp，ebp；pop ebp” - "enter" vs "push ebp; mov ebp, esp; sub esp, imm" and "leave" vs "mov esp, ebp; pop ebp" 为什么我们在装配中的CALLEE中“推动EBP”和“MOV EBP，ESP”？ - Why do we “PUSH EBP” and “MOV EBP, ESP” in the CALLEE in Assembly? 当不需要清理时，避免“ push ebp，mov esp，ebp”的序幕 - Avoid “push ebp, mov esp, ebp” prologue when no cleanup is required 为什么“ push ebp”会改变ebp的值？ - Why does “push ebp” change the value of ebp? 此表达式的计算结果是：mov eax，[（ebp + 8）+ [ebp-25]] - What does this expression evaluates to: mov eax, [(ebp + 8) + [ebp - 25]] 为什么在x86程序集中执行“mov esp，ebp”？ - Why does leave do “mov esp,ebp” in x86 assembly? 执行新程序时，ESP和EBP寄存器如何工作？ - How does ESP and EBP registers act when a new program is executed? 反汇编代码中的ebp和esp是什么意思？ - What does ebp and esp in a disassembly code mean? （x86）ESP的价值对EBP有所帮助吗？ - (x86) Is the value of ESP realtive to EBP, or not?

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mov ebp esp 指令如何不覆盖 ebp 的值

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0 个解决方案