X86中的栈操作
1，push指令
PUSH (Push) decrements the stack pointer (ESP), then transfers the source
operand to the top of stack indicated by ESP (see Figure 3-1). PUSH isoften used to place parameters on the stack before calling a procedure; it
is also the basic means of storing temporary variables on the stack. The
PUSH instruction operates on memory operands, immediate operands, and
register operands (including segment registers).
2，pusha指令
registers on the stack (see Figure 3-2). This instruction simplifies
procedure calls by reducing the number of instructions required to retain
the contents of the general registers for use in a procedure. The processor
pushes the general registers on the stack in the following order: EAX, ECX,
EDX, EBX, the initial value of ESP before EAX was pushed, EBP, ESI, and
EDI. PUSHA is complemented by the POPA instruction.
操作示意图：
3，pop指令
POP (Pop) transfers the word or doubleword at the current top of stack
(indicated by ESP) to the destination operand, and then increments ESP topoint to the new top of stack. See Figure 3-3. POP moves information from
the stack to a general register, or to memory
There are also a variant of POP that operates on segment registers. This
is covered in a later section of this chapter..
4，popa指令
POPA (Pop All Registers) restores the registers saved on the stack by
PUSHA, except that it ignores the saved value of ESP.
操作示意图：