1： LABEL : 為一個標號定義大小屬性，但不分配內存與下一個變量共用內存，與C中UNION類似

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCoed:DWORD.data
val16 LABEL WORD
val32 DWORD 12345678hLongValue LABEL DWORD
val1 WORD 5678h
val2 WORD 1234h.code
main PROCmov ax,val16    ;5678hmov dx,[val16+2];1234hmov eax,LongValue  ;12345678hINVOKE ExitProcess,0
main ENDP
END main

2： 間接尋址，因為常數偏移量尋址多個數組元素時，直接尋址不實用，反之，用寄存器作為指針（稱為間接尋址） 并控制寄存器的值，如果一個操作數使用的間接尋址，就稱為間接操作數

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
byteVal BYTE 10h.code
main PROCmov esi,OFFSET byteValmov al,[esi];PTR與間接操作數一起使用;inc [esi] 一個操作數的大小無法從指令看出，報錯inc BYTE PTR [esi] INVOKE ExitProcess,0
main ENDP
END main

3： 間接尋址訪問數組案例

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
arrayB BYTE 10h,20h,30h
arrayW WORD 1000h,2000h,3000h
arrayD DWORD 10000h,20000h,30000h.code
main PROCmov esi,OFFSET arrayBmov al,[esi]inc esimov al,[esi]inc esimov al,[esi]mov esi,OFFSET arrayWmov ax,[esi]add esi,2mov ax,[esi]add esi,2mov ax,[esi]mov esi,OFFSET arrayDmov eax,[esi]add esi,4mov eax,[esi]add esi,4mov eax,[esi]INVOKE ExitProcess,0
main ENDP
END main

4：變址操作數，訪問數組更靈活

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
arrayB BYTE 10h,20h,30h
arrayW WORD 1000h,2000h,3000h
arrayD DWORD 10000h,20000h,30000h.code
main PROCmov esi,0mov al,arrayB[esi]  ;第一種格式constant [reg]mov esi,OFFSET arrayW ;第二種格式 [constant + reg]mov ax,[esi]mov ax,[esi+2]mov ax,[esi+4];比例因子mov esi,3 * TYPE arrayDmov eax,arrayD[esi];更簡單的做法mov esi,3 ;下標mov eax,arrayD[esi * 4];使用TYPE 更靈活mov eax,arrayD[esi * TYPE arrayD]INVOKE ExitProcess,0
main ENDP
END main

5： 指針使用

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
arrayB BYTE 10h,20h,30h,40h
arrayW WORD 1000h,2000h,3000h,4000h
ptrB DWORD arrayB
ptrW DWORD arrayW
;使用OFFSET運算符使這種關系更加準確
optrB DWORD OFFSET arrayB
optrW DWORD OFFSET arrayW.code
main PROCINVOKE ExitProcess,0
main ENDP
END main

6： TypeDef : 定義新類型，與C的typedef 類似，不在.data段內定義的

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORDPBYTE TYPEDEF PTR BYTE     ;字節指針
PWORD TYPEDEF PTR WORD     ;字指針
PDWORD TYPEDEF PTR DWORD  ;雙字指針.data
arrayB BYTE 10h,20h,30h,40h
arrayW WORD 1,2,3
arrayD DWORD 4,5,6ptr0 PBYTE ? ;未初始化
ptr1 PBYTE arrayB
ptr2 PWORD arrayW
ptr3 PDWORD arrayD.code
main PROCmov esi,ptr1mov al,[esi]mov esi,ptr2mov ax,[esi]mov esi,ptr3mov eax,[esi]INVOKE ExitProcess,0
main ENDP
END main

7： LOOP : 循環偽指令使用

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
count DWORD ?
bytes BYTE 1,2,3,4
.code
main PROCmov ecx,100     ;設置外層循環計數
L1:mov count,ecx    ;保存外層計數mov ecx,20       ;設置內層計數
L2:mov eax,ecxloop L2       ;重復內層mov ecx,count ;恢復外層計數loop L1       ;重復外層INVOKE ExitProcess,0
main ENDP
END main

8： LOOP_ARRAY : 數組元素求和例子

.386
.model flat,stdcall
.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
intarray DWORD 10000h,20000h,30000h,40000h.code
main PROCmov edi,OFFSET intarray    ;EDI=intarray地址 作變址操作數mov ecx,LENGTHOF intarray  ;循環計數器初始化為元素個數mov eax,0                  ;EAX 記錄總數
L1:add eax,[edi]              ;加一個元素add edi,TYPE intarray      ;指向下一個元素loop L1                    ;重復INVOKE ExitProcess,0
main ENDP
END main

9： LOOP_STRAING : 復制字符串例子

.386
.model flat,stdcall
.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
source BYTE "This is the source string",0
target BYTE  SIZEOF source DUP(0).code
main PROCmov esi,0               ;變址計數器mov ecx,SIZEOF source   ;循環計數器
L1:mov al,source[esi]      ;從源字符串取一個字符mov target[esi],al      ;保存到目標字符串inc esi                 ;指向下一個字節loop L1                 ;重復INVOKE ExitProcess,0
main ENDP
END main

10: DWORD變量交換高位低位字

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
tword LABEL WORD
three DWORD 12345678h  ;56781234.code
main PROCmov si,tword            ;或者用WORD PTR threemov di,[tword+2]        ;WORD PTR [three + 2]mov tword,di            ;WORD PTR threemov [tword+2],si        ;WORD PTR [three + 2]mov eax,threeINVOKE ExitProcess,0
main ENDP
END main