菜鸟学反汇编4—cin

#include<iostream><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />	#include<iostream>	#include<iostream>	#include<iostream>
using namespace std;	using namespace std;	using namespace std;	using namespace std;
int main()	int main()	int main()	int main()
{	{	{	{
int i;	int i;	int i;	int i;
char c;	char c;	char c;
double d;	double d;
float f;
cin>>i>>c>>d>>f;	cin>>i>>c>>d;	cin>>i>>c;	cin>>i>;
cout<<i<<c<<d<<f;	cout<<i<<c<<d;	cout<<i<<c;	cout<<i;
return 0;	return 0;	return 0;	return 0;
}	}	}	}

var_20= qword ptr -20h
var_18= dword ptr -18h
var_11= byte ptr -11h	var_1C= qword ptr -1Ch
var_10= qword ptr -10h	var_11= byte ptr -11h
var_8= dword ptr -8	var_10= qword ptr -10h	var_5= byte ptr -5
var_4= dword ptr -4	var_4= dword ptr -4	var_4= dword ptr -4	var_4= dword ptr -4
argc= dword ptr 8	argc= dword ptr 8	argc= dword ptr 8	argc= dword ptr 8
argv= dword ptr 0Ch	argv= dword ptr 0Ch	argv= dword ptr 0Ch	argv= dword ptr 0Ch
envp= dword ptr 10h	envp= dword ptr 10h	envp= dword ptr 10h	envp= dword ptr 10h
push ebp	push ebp	push ebp	push ebp
mov ebp, esp	mov ebp, esp	mov ebp, esp	mov ebp, esp
sub esp, 14h	sub esp, 14h	sub esp, 8	push ecx
lea eax, [ebp+var_8]
push eax
lea ecx, [ebp+var_10]	lea eax, [ebp+var_10]
push ecx	push eax
lea edx, [ebp+var_11]	lea ecx, [ebp+var_11]	lea eax, [ebp+var_5]
push edx	push ecx	push eax
lea eax, [ebp+var_4]	lea edx, [ebp+var_4]	lea ecx, [ebp+var_4]	lea eax, [ebp+var_4]
push eax	push edx	push ecx	push eax
mov ecx, offset dword_426AD4	mov ecx, offset dword_425AD4	mov ecx, offset dword_424AB4	mov ecx, offset dword_424AB4
call sub_401790	call sub_4015D0	call sub_401420	call sub_401400
push eax	push eax	push eax
call sub_403C80	call sub_4038E0	call sub_4034C0
add esp, 8	add esp, 8	add esp, 8
mov ecx, eax	mov ecx, eax
call sub_401B10	call sub_4017C0
mov ecx, eax
call sub_401980
push ecx ; float
fld [ebp+var_8]
fstp [esp+18h+var_18]
sub esp, 8	sub esp, 8
fld [ebp+var_10]	fld [ebp+var_10]
fstp [esp+20h+var_20]	fstp [esp+1Ch+var_1C]
mov cl, [ebp+var_11]	mov al, [ebp+var_11]	mov dl, [ebp+var_5]
push ecx	push eax	push edx
mov edx, [ebp+var_4]	mov ecx, [ebp+var_4]	mov eax, [ebp+var_4]	mov ecx, [ebp+var_4]
push edx	push ecx	push eax	push ecx
mov ecx, offset unk_426A40	mov ecx, offset unk_425A40	mov ecx, offset unk_424A20	mov ecx, offset unk_424A20
call sub_401080	call sub_401060	call sub_401050	call sub_401030
push eax	push eax	push eax
call sub_403DC0	call sub_403A20	call sub_403600
add esp, 8	add esp, 8	add esp, 8
mov ecx, eax	mov ecx, eax
call sub_401580	call sub_4013C0
mov ecx, eax
call sub_4013E0
xor eax, eax	xor eax, eax	xor eax, eax	xor eax, eax
mov esp, ebp	mov esp, ebp	mov esp, ebp	mov esp, ebp
pop ebp	pop ebp	pop ebp	pop ebp
retn	retn	retn	retn

反思：	可以发现其中有部分在主体中的堆栈是不平衡的，如果跟进去会发现retn 4。有些函数是在函数内部实现堆栈平衡的。这段代码可以发现很多东西。要好好仔细研读（各种类型的数在文件中的存放方式）。cout输出char型和其他类型的汇编代码好像有区别。
下步：	比较cout输出变量和常量的区别。