汇编语言(王爽第三版) ret retf总结以及检测点10.1

墨蓝 2022-11-27 12:21 92阅读 0赞

### 关键导读： ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70][]

### ret对应的代码以及结果: ###

assume cs:codesg
    
    stack segment
    	db 16 dup(0)
    stack ends
    
    codesg segment
    	mov ax,4c00h
    	int 21h
    start:
    	mov ax,stack
    	mov ss,ax
    	mov sp,16
    	mov ax,0
    	
    	push ax
    	mov bx,0
    	ret;执行之后就是将IP修改成为栈顶所对应的数据,再执行出栈(SP=SP+2)
    codesg ends
    end start

### ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 1][] ###

### retf 对应的代码以及结果: ###

assume cs:codesg
    
    stack segment
    	db 16 dup(0)
    stack ends
    
    codesg segment
    	mov ax,4c00h
    	int 21h
    start:
    	mov ax,stack
    	mov ss,ax
    	mov sp,16
    	mov ax,0
    	push cs
    	push ax
    
    	mov bx,0
    	retf;执行之后就是将IP修改成为栈顶所对应的数据,再执行出栈(SP=SP+2)
    	;随后将CS再修改成为栈顶所对应的数据,再执行出栈(SP=SP+2)
    codesg ends
    end start

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 2][]

### 监测点10.1 ###

代码：

assume cs:codesg
    
    stack segment
    	db 16 dup(0)
    stack ends
    
    codesg segment
    start:
    	mov ax,stack
    	mov ss,ax
    	mov sp,16
    	mov ax,1000h
    	push ax
    	mov ax,0
    	push ax
    	retf;执行之后就是将IP修改成为栈顶所对应的数据,再执行出栈(SP=SP+2)
    codesg ends
    end start

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 3][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70]: /images/20221124/31e36ce848964784a083fd79fe05a6b1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 1]: /images/20221124/1f3741a6d2304a74baf7d97b73412a63.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 2]: /images/20221124/b742320ea298409b8e148e99b9016169.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjg1OTI4MA_size_16_color_FFFFFF_t_70 3]: /images/20221124/4ba36ce8c6804561a30b70ce93da67df.png