PC技术2010年100道上机题答案(南开大学出版社).doc

PC技术2003年100道上机题答案（南开大学出版社）1.(1)MOV(2)00H(3)JMP MAIN3(4)LOOP(5)SI(6)MAIN4(7)INC BX2.(1)PUSH CX(2)RCL(3)BH(4)JNE SET ONE(5)BH(6)AND BH,01H(7)POP CX3.(1)2(2)ADD DI,2(3)NEXT0(4)BX(5)SW(6)AX(7)NEXT(8)DEC BX(9)JNZ4.(1)5(2)CX(3)4(4)MOV DX,0(5)INC DI(6)INC SI5.(1)AL,SI-2(2)XOR BX,0FFH(3)Z(4)SHL(5)AND AL,0FH(6)DEC DX6.(1)MOV SI,0(2)MOV CX,N(3)MOV AL,SOURCESI(4)10H(5)INC DI(6)INC SI(7)CHAN7.(1)JNZ(2)*(3)SEARCH1(4)JNZ(5)13(6)DEC BX8.(1)16(2)SHL AX,1(3)JB(4)COUNT(5)BX,2(6)DI,DH9.(1)LEA DI,RESULT(2)1(3)TEST(4)JP(5)SHL DX,110.(1)NEG AL(2)ADC DI+1(3)ADC DI+1(4)NEXT(5)0FFH11.(1)AND AH,0FH(2)PUSH CX(3)SHR AL,CL(4)AL,9(5)BYTE PTRDI,0BEH(6)LOOP CLP112.(1)MOV AL,SI(2)A(3)MUL BL(4)A(5)MUL BH(6)MUL DL(7)INC SI(8)ADD SI,213.(1)MOV AL,SI(2)A(3)SUB AL,10(4)ADD AX,10*70(5)MOV DI,AX(6)ADD DI,214.(1)MOV AL,DI(2)REPNZ SCASB(3)INC DI(4)L0(5)ADD SI,315.(1)E(2)STOSB(3)CLD(4)MOV CX,SI(5)MOV AL,SI+1(6)REP STOSB(7) ADD SI ,216.(1) XOR DX ,AX(2)AND DH ,80H(3) Z(4)MOV AL,SI-2(5)MOV DX,AX17.(1)CMP AL,0(2)NEXT(3)NEG AL(4)ADC DH,0(5)REP STOSB18.(1) TEST(2)INC DI(3) REST11(4) LASC(5)INC DL(6) DI(7) DH19.(1) MOV AL, SI(2)8(3) SHL(4) LP3(5)LOOP(6) DH(7) INC SI(8)DEC DL(9) LP120.(1) 4(2)INC DI(3) LP0(4) 0E1H(5)INC DI(6) JNZ21.(1)AGN11(2)#(3)INC DI(4)JMP AGN1(5)20H(6)DI22.(1)PUSH(2)ROL(3)ADC(4)BL, AL(5)POP(6)DX(7)MOV DI,AL23.(1)N(2)SI(3)JNZ NEXTD(4)CMP AL,DH(5)ADD BX,DL(6)LOOP MCLP124.(1)DI,OFFSET RESULT(2)8(3)AL(4)LOOP MAGN2(5)MOV CL,8(6)DIV CL(7)MOV DI,AL(8)INC DI(9)JNZ25.(1)MOV SI,0(2)MOV AH,SOURCESI(3)INC SI(4)AH(5)EXIT(6)POP SI(7)CHAN26.(1)MOV DI,0(2)MOV RESULTDI,AX(3)INC SI(4)INC DI(5)AX(6)DEC BX(7)4(8)INC DI27.(1)MOV SI,0(2)4(3)INC DI(4)ADD AL,30H(5)INC SI(6)INSER128.(1)AL(2)AL(3)4(4)CL(5)OR29.(1)0(2)SUB(3)INC DI(4)DAA(5)DEC CX(6)MOV DI,DL30.(1)JB(2)NINC(3)20H(4)JUMP(5)INC DI(6)MOV DI,DL31.(1)SOURCEBX(2)DL(3)OR(4)AL(5)MOV DI,AX(6)DEC CX32. LEA SI,SOURCELEA DI,RESULTMOV CX,NLOOP2: MOV BL,2MOV AL,SIMOV AH,ALPUSH CXMOV CL,4SHR AL,CLPOP CXEXCH: CMP AL,9JNA CHARADD AL,07HCHAR: ADD AL,3 0HMOV DI,ALINC DIDEC BLJZ LOOP1AND AH,OFHMOV AL,AHJMP EXCHLOOP1: INC SILOOP LOOP233. LEA SI,SOURCELEA DI,RESULTLOOP2: MOV AL,SICMP AL,00HJE EXITADD AL,0JNP LOOP1OR AL,80HLOOP1: MOV DI,ALINC DIINC SIJMP LOOP2EXIT: MOV DI,AL34. LEA SI,SOURCELEA DI,RESULTLOOP1: MOV AL,SICMP AL,00HJE EXITCMP AL,41HJB KEEPCMP AL,5AHJNBE KEEPADD AL,20HKEEP: MOV DI,ALINC DIINC SIJMP LOOP1EXIT: MOV DI,AL35. LEA SI,SOURCELEA DI,RESULTMOV CX,2 0LOOP 1：MOV AL,SIMOV AH,ALSHR AH, 1JNC KEEPCMP AL, 0JNL KEEPJMP EXITKEEP ： MOV DI,ALINC DIEXIT ： INC SILOOP LOOP 136. LEA SI,SOURCELEA DI,RESULTLOOP1：MOV AL,SICMP AL,00HJE EXITNEXT： INC SIMOV AH,SICMP AL,AHJE NEXTMOV DI,ALINC DIJMP LOOP1EXIT: MOV DI,AL37.(1)0(2)TEST(3)NZ(4)SHR(5)LOOP NEXT38.(1)W(2)MOV BX,0(3)NB(4)LOOP1(5)INC DI39.(1)AL,SI(2)SHR AL,CL(3)POP CX(4)JP SERCH2(5)ADD AH,30H(6)LOOP40.(1)MOV CX,N(2)DL,SOURCEBX+N(3)MOV AX(4)DL(5)AX(6)INC BX(7)JNZ41.(1)BYTEPTR SOURCEBX+1(2)CL(3)CL(4)AH(5)AL42.(1)INC DI(2)NEXT0(3)N-1(4)SB(5)NEXT3(6)AL(7)NEXT2(8)BX(9)NEXT143.(1)B(2)0FH(3)B(4)CX(5)4(6)CX(7)BL(8)B44.(1)B(2)0FH(3)B(4)BL(5)CX(6)4(7)CX(8)B45.(1)OFFSET RESULT(2)0(3)MOV CX,N(4)ADD AL,SOURCEBX(5)ADC AH,0(6)ADD DI,246.(1)SUB AL,SOURCEBX+N(2)JNS(3)0FF H(4)JUMP1(5)JUMP 1(6)CBW47.(1)MOV DI(2)MOV CX,N(3)MOV AL(4)MUL SOURCEBX(5)DEC CX48.(1)MOV AL,AH(2)AND AH,0F0H(3)SHR(4)INC RESULTBL(5)INC RESULTBL49.(1)BX(2)SHR(3)AH(4)BL , AL(5)SUB(6)INC RESULTBX50.(1)SOURCEBX+N(2)ADD(3)0FFH(4)JUMP(5)CBW51.(1)4(2)SOURCEBX(3)CL(4)CL(5)CL(6)AH,AL(7)AL(8)AH52.(1)INC BX(2)JBE(3)INC BX(4)SHR BX,1(5)INC DI(6)INC SI53.(1)80H(2)AL, BL(3) BL(4)DEC54.(1)# (2)00H(3)CHAR(4)* (5)0DH(6)0AH(7)EXIT55.(1)MOV CX,N(2)SOURCEBX+N(3)JNC(4)0FFH(5)DI56.(1)ADC CH,0(2)CMP DX,I(3)ADD DI,2(4)INC BX(5)LPJ57.(1)DI-1(2)NA(3)MOV DI,BX(4)NB(5)MOV DI,AL(6)MOV DI,DX58.(1)XOR BX,DX(2)AND BX,80H(3)Z(4)STOSB(5)INC DI59.(1)MOV(2)MOV CX,N(3)9(4)STRIP(5)F(6)INVALID(7)NEXT60.(1)MOV AH,0(2)ADD BX,AX(3)AL(4)INC SI(5)INC DI(6)BX61.(1)OFFSET RESULT(2)MOV BX,N(3)SOURCEBX+N(4)IMUL(5)DI,2(6)DEC BX62.(1)OFFSET RESULT(2)8000 H(3)C_0(4)CL63.(1)JB(2)Z(3)NINC(4)20H(5)INC DI(6)MOV DI,DL64.(1)00H(2)30H(3)JB(4)DL(5)MOV DI,DL65.(1)CLD(2)MOV AH,0(3)CMP AL,90(4)BYTE PTRDI+4(5)JMP NEXT(6)BX(7)N66.(1)SI(2)SI(3)NEXT(4)JL NEXT(5) N(6)INC AL67.(1)MOV DX,SI(2)MOV CX,N-1(3)CHKMIN(4)JGE(5)MOV DI,DX(6)MOV DI,BX68.(1)LEA DI,RESULT(2)SI(3)Z(4)JA(5)20H(6)INC SI(7)DI(8)LOOP69.(1) N(2) SOURCE BX+ N(3) SOURCE BX(4)0FFH(5)JUMP(6)CBW(7)JNS70.(1)AL(2)MOV AH,0(3)SOURCE(4)ADC CH,0(5)N+171.(1)PUSH(2)JNE(3)BL ,0FH(4)POP(5)CMP SI,AL72.(1)PUSH CX(2)ROL(3)ADC AH,0(4)JNE(5)BH(6)POP CX73.(1)MOV DL,3(2)PUSH AX(3)BH(4)AL(5)POP AX(6)274.(1)LEA(2)BX(3)CMP(4)JG MAXD3(5)MAXD2(6)STOSB75.(1)CX,N(2)DI,OFFSET RESULT(3)SOURCEBX+N(4)DI,AL(5)INC BX76.(1)0FH(2)CL(3)POP CX(4)30H(5)ENDP77.(1)MOV AH,0(2)SI(3)J(4)AX(5)278.(1)MOV AH,0(2)J(3)2(4)INC BX(5)J79.(1)AL(2)DL(3)SI(4)BX+SI+1(5)REP80.(1)4(2)JG(3)NEXT(4)JAE(5)0(6)NOTNEG1(7)JZ EXIT81.(1)UPPER2(2)Z(3)A(4)AL,0DFH(5)AL(6)SI(7)DI(8) LOOP82.(1)MOV BX,0(2)OFFSET RESULT(3)SOURCEBX(4)CBW(5)IDIV(6)DI83.(1)0(2)BYTE PTR SOURCEBX+1(3)8000H(4)DH(5)CL(6)INC DI84.(1)8(2)ROL AL,1(3)JUMP(4)JNZ(5)DL(6)DI,DH85.(1)CMP AL,00H(2)JE QUIT(3)E(4)L0(5)INC SI86.(1)MOV AL,SI+N-1(2)MOV DI+N-1,AL(3)N-2(4)SI(5)SI-1(6)SI+1(7)SHL87.(1)AND AH,80H(2)NEG AH(3)NEXT(4)AH,AH(5)ADD AL,188.(1)N(2)DEC BX(3)CMP BX,0(4)N-2(5)MOV DL,N-2(6)ADD AL,189.(1)STR0,N1,RESULT0(2)STR1,N1,RESULT1(3)STR2,N1,RESULT2(4)STR3,N1,RESULT3(5)STR4,N1,RESULT4(6)STR5,N1,RESULT5(7)STR6,N1,RESULT6(8)STR7,N1,RESULT7(9)STR8,N1,RESULT8(10)STR9,N1,RESULT990.(1)DI(2)1(3)ADD DI,1(4)JNA(5)BL(6)BH(7)MOV DI+1,BL91.(1)DEC DX(2)JAE G1(3)AL(4)SHL(5)OR92.(1)MOV CX,6(2)ADD SI,2(3)JMP(4)ADD SI,2(5)NEG AX(6)ADD DI,