1：DAS : SUB或SBB在AL中生成二进制结果，DAS（减法后的十进制调整）转压缩十进制格式

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROC;计算85-48mov bl,48hmov al,85hsub al,bl   ;AL=3Dhdas         ;AL = 37h(调整后的结果)INVOKE ExitProcess,0
main ENDP
END main

2：DAA_DAS : DAA与DAS将进位标志位设1的情况

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROCmov al,56hadd al,92h      ;AL=E8hdaa             ;AL =48  ,CF = 1 当压缩十进制加法的和数大于99时,进位为1mov al,56hsub al,92h     ;AL = C4hdas            ;AL = 64h ,CF=1  ;当从小的压缩十进制数减去大的压缩十进制整数,进位为1,也就是表示是负数INVOKE ExitProcess,0
main ENDP
END main

3：QWORD类型用SBB借位减法进行计算

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
val1 QWORD 20403004362047A1h
val2 QWORD 055210304A2630B2h
result QWORD 0.code
main PROCmov ecx,8mov esi,0mov edi,0clc
top:mov al,BYTE PTR val1[esi]sbb al,BYTE PTR val2[esi]mov BYTE PTR result[edi],alinc esiinc ediloop topINVOKE ExitProcess,0
main ENDP
END main

4：编写指令将AX符号扩展到EAX，不能使用CWD

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROCmov ax,0123hmov bx,axsar ax,15shl eax,16mov ax,bxINVOKE ExitProcess,0
main ENDP
END main

5：不用循环移位指令，用SHR和条件判断指令将AL循环右移一位

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROCmov al,11hshr al,1jnc quitor al,80h
quit:INVOKE ExitProcess,0
main ENDP
END main

6：编写一条SHLD指令，把AX寄存器的最高位移入DX的最低位，DX左移一位

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROCmov ax,8111hmov dx,1110hshld dx,ax,1INVOKE ExitProcess,0
main ENDP
END main

7：编写指令，把字节数组右移一位

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
byteArray BYTE 81h,20h,33h.code
main PROCmov ecx,(LENGTHOF byteArray) - 1mov esi,OFFSET byteArray
L1:mov ax,WORD PTR[esi]shr ax,1mov BYTE PTR[esi],alinc esiloop L1shr BYTE PTR[esi],1INVOKE ExitProcess,0
main ENDP
END main

8： 编写指令，把字数组左移一位

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
wordArray WORD 810Dh,0C064h,93ABh.code
main PROCmov ecx,(LENGTHOF wordArray )-1mov esi,(OFFSET wordArray )+(2 * TYPE WORD)
L1:mov ax,[esi - TYPE WORD]shld WORD PTR[esi],ax,1sub esi,TYPE WORDloop L1shl WORD PTR[esi],1INVOKE ExitProcess,0
main ENDP
END main

9：编写过程，把8位无符号二进制数值显示为十进制式，用AL接收二进制数值，其取值范围为十进制0到99

include Irvine32.inc.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.code
main PROCmov al,65call showDecimal8INVOKE ExitProcess,0
main ENDPshowDecimal8 PROCaam or ax,3030hmov bx,axshr ax,8call WriteCharmov ax,bxcall WriteCharret
showDecimal8 ENDP
END main

10：压缩十进制转换，将4字节的压缩十进制整数转为ASCII十进制数字串，向过程传递压缩数字和存放ASCII数字的缓冲地址

.386
.model flat,stdcall.stack 4096
ExitProcess PROTO,dwExitCode:DWORD.data
val1 DWORD 12345678h
result  BYTE 8 DUP(0).code
main PROCmov eax,val1mov edi,OFFSET resultcall PackedToAscINVOKE ExitProcess,0
main ENDPPackedToAsc PROCmov ecx,8
L1:rol eax,4mov bl,aland bl,0Fhor bl,30hmov BYTE PTR[edi],blinc ediloop L1ret
PackedToAsc ENDP
END main