[分享]汇编实验二加法

nicekin

data &nbsp; &nbsp;&nbsp; &nbsp;SEGMENT<br>
data1 &nbsp; &nbsp; DB'72355+'<br>
data2 &nbsp; &nbsp; DB'45664= '<br>
5 A/ M. r2 Q4 ?6 b# T: Odata3 &nbsp; &nbsp; DB 6 DUP(?),'$'<br>
data &nbsp; &nbsp;&nbsp; &nbsp;ENDS<br>
. a$ S8 e  E& ~4 ~) O, ]code &nbsp; &nbsp;&nbsp; SEGMENT<br>
3 e* V6 h8 n! }  K( R: CASSUME CS:code,DS:data<br>
start: &nbsp; &nbsp; MOV AX,data<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; MOV DS,AX<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; LEA SI,data1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; LEA DI,data2<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; LEA BX,data3<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; MOV CX,5<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; CLC<br>
l1: &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; MOV AL,[SI+4]<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ADC AL,[DI+4]<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; AAA<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; PUSHF<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ADD AL,30h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; POPF<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; MOV [BX+4],AL<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; DEC SI<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; DEC DI<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; DEC BX<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; LOOP l1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; JNC l21<br>
l2: &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; MOV [data3-1],31h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; JMP l22<br>
l21: &nbsp; &nbsp;&nbsp; &nbsp;MOV [data3-1],20h<br>
' B5 B2 g+ z. o( Z2 Tl22: &nbsp; &nbsp;&nbsp; &nbsp;MOV DX,OFFSET data1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; MOV AH,09h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; INT 21h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; MOV AH,4ch<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; INT 21h<br>
code &nbsp; &nbsp; ENDS<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; END start <br>
* _) ^) |' R( y0 S4 N6 J

nicekin

附加题:<br>
6 g* |7 {- ?" i9 Y! r/ Xdata SEGMENT<br>
( ^3 l2 f7 F2 Z2 _data1 DB ' 12345',10,13,'+'<br>
data2 DB '67890',10,13,'------',10,13,' '<br>
+ m( _) s' M  v* G- adata3 DB 6 DUP(?),'$'<br>
data ENDS<br>
code SEGMENT<br>&nbsp; &nbsp; &nbsp;ASSUME CS:code,DS:data<br>
start: &nbsp;MOV AX,data<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;MOV DS,AX<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;LEA SI,data1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;LEA DI,data2<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;LEA BX,data3<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;CLC<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;MOV CX,5 &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; <br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; <br>
; H- P: @; J4 Q$ P) Fagain1: MOV AL,[SI+5]<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;ADC AL,[DI+4]<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;AAA<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;PUSHF<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;ADD AL,30h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;POPF<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;MOV [BX+4],AL<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;DEC SI<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;DEC DI<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;DEC BX<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;LOOP again1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;JNC &nbsp;d1 &nbsp; &nbsp;&nbsp; &nbsp;<br>
4 `5 z- Y# [2 T; G" Y% `4 ad0: &nbsp; &nbsp; MOV &nbsp;[data3-1],31h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;JMP &nbsp;d2 &nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;<br>
# n/ [2 t& G; u3 ?d1: &nbsp; &nbsp; MOV &nbsp;[data3-1],20h<br>
7 L, ~5 G$ `! I, Z" pd2: &nbsp; &nbsp; MOV &nbsp;DX,OFFSET data1<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;MOV &nbsp;AH,09h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;INT &nbsp;21h<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;MOV &nbsp;AH,4ch<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;INT &nbsp;21h<br>
code &nbsp; &nbsp;ENDS<br>&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;END start<br>

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