微机原理第二版+田辉+课后答案1

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▭ᵨ᪷◤⌕ᩭᜧ஺2-22.ᓫᐗḄᙢᙬ!4500H,'(ᙢᙬ!4500H,)ᓫᐗḄᱥᳮᙢᙬ,-./0149500H2-23.ᢣ56789:ᘤCS=FFFFH,ᢣ5ᢣ┐:ᘤ1P=FFOOH,DE)ᢣ5Ḅᱥᳮᙢᙬ!-./ᢣᔣGHᱥᳮᙢᙬḄCSIJIPI,L•Ḅᔩ/OPQRS01)ᢣ5Ḅᱥᳮᙢᙬ!1CS+IPFFFF0H+FF00H=l0FEF0HGHᱥᳮᙢᙬḄCSIJIPI,LHḄᔩ:YL•2-24.Z!8086CPUḄ^ᦪ`aᙠᑁḄᏔᙢᙬᓫᐗEef᣸ᙠ᜻ᙢᙬᓫᐗEᡠᐸᚮ᪘ᢣ┐SP(A)஺A.ᨬq,ᢣᔣᏔᙢᙬᓫᐗB.ᢣᔣrsᙢᙬᓫᐗC.tuᢣᔣᏔᙢᙬᓫᐗD.tuᢣᔣ᜻ᙢᙬᓫᐗ

11w3x8086/8088Ḅᢣ5yz{⚪3-1.OPQRS8086/8088}ᜐᳮᘤḄᔜᙬ஺(ᶍ)3-2.ᎷDS=1000H,SS=9000H,SI=100H,BX=20H,BP=300H,ᢣᑡᢣ5Ḅᦪ,ᙬ/ᦪᘤEᐸᱥᳮᙢᙬ,-./1MOVCX,[1000H]2MOVAX,100H(3)MOVAX,[BX]4MOVBL,CL(5)MOVAL,[BP+5]6MOVAL,[BP+SI+2]01(1)ᦪ!ᙬEᐸᱥᳮᙢᙬ=DS*16+1000H=11000H
(2)ᦪ!ᓽᙬ
(3)ᦪ!:ᘤᙬEᐸᱥᳮᙢᙬ=DS*16+(BX)=10020H
(4)ᦪ!:ᘤᙬ
(5)ᦪ!ᙬᙬEᐸᱥᳮᙢᙬ=SS*16+(BP)+5=90305H
(6)ᦪ!¡ᙬ¢ᙬᙬEᱥᳮᙢᙬ=$$*+(BP)+(SI)+2=90402H஺3-3.ᙠ8088/8086}¥Ḅᑁᱥᳮᙢᙬ34780HᜐEaᨵ^⁚ᦪ58H,DS=3000H,Oᑏᢣ5©ᑡª)^⁚ᦪ〈ᐭAL:ᘤ஺⌕ᑖ¯°ᵨ±Y²Ḅᙬ஺01(1)ᙬ1MOVAL,[4780H](2):ᘤᙬ1MOVBX,4780HMOVAL,[BX](3)ᙬᙬ1MOVSI,4782HMOVAL,[SI-2]3-4.ᑨ´µ8086/8088ᢣ5Ḅᑏ¶,ᔲ¸1(1)MOV[AX],BH([SP],AX(3)MOV[SP],AX3(5)OUT10H,CL(7)PUSHAL)(9)MOVES:[S1],DI01MM(1)MOV[AX],BH0(2)MOV[BP],AX

12(2)MOV[BP],AX(4)ᵨMOV[DI],

13(4)MOV[DI][SI](X)Z(5)OUT10H,CL(x)(6)INCWORDPTR[SI](-)(7)PUSHAL(8)CMP36H,AL)(x(9)MOVES:[SI],DI(10)MOVBYTEPTR[BX],800(X)3-5.ºᨵᐵ:ᘤ¼ᓫᐗḄᑁ½᝞1DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20102H]=33H,[20103]=44H,[21200]=9BH,[21201H]=99H,[21202H]=0AAH,[21203H]=88Ho¿1ᑡᔜᩩᢣ5ᓫÁ᡻ÃÄÅᐵ:ᘤᡈᓫᐗḄᑁ½!-./(1)MOVAX,1800H2MOVAX,BX3MOVBX,[1200H]4MOVDX,[BX+1100H]5MOV[BX+SI],AL6MOVAX,[BX+SI+1100H]01(1)AX=1800H2
AX=BX=0100H3
BX=999BH4
DX=999BH5
[20102H]=AL=00H6
AX=88AAH3-6.SS=OFFOOH,SP=OOOOH,OÇᑏÈ©ᱏªÊË16ᦪ1122HJ3344HᐜÄÌᐭᚮ᪘EÍÎᚮ᪘ÏJSPᑁ½ᓄḄÑÈÒÓÔ᪗ᓫᐗḄᙢᙬ0111IMOVAX,1122HPUSHAXLOFFOO:OFFFEHτ22H1SPOFFOO:OFFFFH11HMOVAX,3344HPUSHAX

14OFFOO:OFFFCH44HSPOFFOO:OFFFDH33HOFFOO:OFFFEH22HOFFOO:OFFFFH11H3-7.ºᙠᦪ'(ᙢᙬ!2000Hᓫᐗ×ØḄᙢÙÚaÛ0~15ḄÜI஺OᑏᒹÞᨵXLATᢣ5Ḅᢣ5©ᑡEᵨᩭßà0á15ãᑁḄËᦪNḄÜIºNḄIaᙠCL:ᘤ஺01MOVBX,2000HMOVAL,CLXLAT3-8.OᵨäᓫḄåᩩᢣ5æᡂ6AL:ᘤḄèéêᦪë12Ḅ஺⌕tuᵨ(ஹ¢¶¼MOVᢣ5஺01MOVAH,0MOVCL,2SHLAX,CL;ALí(ÊEÅ8ë4MOVBX,AX;ïSHLAX,1;ALðí(HEÅ8ñᦪë8ADDAX,BX;Å8ñᦪë123-9.È©᝞:MOVAX,1234HMOVCL,4ROLAX,CLDECAXMOVex,4MULex¿1᡻Ãæòᩩᢣ5ÄEAX=?CF=?SF=?ZF=?ºᙠ᡻ÃwHᩩᢣ59CF=SF=ZF=O
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150:

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173-14.ᙠᦪ#/G23ᙢᙬᑖI41000HJ2000HḄKLᑁᨵN10!⁚Ḅ!

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19{4|}Q~⚪4-1.᝞VARIDB4VAR2DB10CNST1EQU12+ᢣᑡᢣpḄ┯:(1)MOVCNST1,CX(2)MOVVARI,AX(3)CMPVARI,VAR2(4)CNST1EQU24y1zdḄmnᦪWᓽᦪy2zVARIᓫᐗ4!⁚B&AX4!y3z8086/8088GNᑁᓫᐗWST;y4zX-OWᐕᵨEQUi஺4-2.᝞.ᦪ#/:DATASEGMENTAT1000HORG100HVALIDB11HVAL2DW22H,33HVAL3DB5DUP(44H)DATAENDS+ᢣᦪ#/G23ᙢᙬ100Hᑮ109HḄᔜ¡ᓫᐗḄᑁ8஺100H11H101H22H102H00H103H33H104H00H105H44H106H44H107H44H108H44H109H44H4-3.>)☢Ḅᦪ#&ᑏᔜᩩᢣp᡻_¤Ḅ¥V:DATASEGMENTORG01OOHAAAADW0A244H

20BBBBDB33H,66H,92H,29HCCCCEQUWORDPTRBBBB

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26JCCHKFH

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41Ḅᑁᙠᔣ⊤ḄᔣᡠᙠḄᱥᳮᙢᙬ___AoA.0036CHB.OOODBHC.82234HD.01234H8-11.ᙠ80860DBHḄ!"#$ᐭ&ᙢᙬ'8100H(1234H,)ᙢᙬᙠᔣ⊤*+4,ᓫᐗ/Ḅᑁ012CoA.81Hஹ00Hஹ12Hஹ34HB.OOHஹ81Hஹ34Hஹ12HC.34Hஹ12HஹOOHஹ81HD.12Hஹ34Hஹ81Hஹ00H8-12.4ᱏ8259A᪀ᡂḄ7ὶ9ᑴᨬ<=>?@*@Ḅ᜜BCḄᦪE'____D»A.4B.32C.28D.298-13.8086Ḅ>FᔜH◤⌕KLMNḄOᨵD஺A.INTOB.INTnC.NMID.INTR8-14.RS8086ḄTL>FUVWXḄ'DoA.ᡠᨵTLḄYᐜ7['\ḄB.ᡠᨵTLḄYᐜ7[=>]^_`C.Yᐜ7ᨵab=>c᦮D.Yᐜ7ᨵabe=>c᦮8-15.gh'ᔣigh'ᔣ⊤i8086Ḅᔣ⊤/ᙠ,ᘤḄklmigh8086ᔣ⊤Ḅᜧo'1024p⁚ir(ᔣs'!#$Ḅᐭ&ᙢᙬ஺ᔣ⊤/!#$Ḅᐭ&ᙢᙬᡈὅ/vwᑮ!#$ᐭ&Ḅwyᢣ{஺8086Ḅᔣ⊤|SRAMlḄ00000H~003FFH஺}8086~ᢝ256!#$Ḅᐭ&ᙢᙬ'4p⁚ᐳ◤⌕1024p⁚஺8-16.ᙠᨵ10᜜C⌕ᵭ[ᵨTLᩭYᐜ7᣸◤⌕)Cᜓ!#$ighir(O◤⌕!#$஺10CᡈᔣCPUᵭ஺ᨵC\ᵭᙠ!#$᣸஺wyᑮᔜḄ!#$஺e◤⌕Cᜓ!#$஺8-17.᝞8259A_`¡¢஺£'ᵨᡝᙠ¥ᑏ!#$§ᨵᔣ8259A¨〈ª{EOIo)᪵Ḅ¬V®¯ghe°Ḅ±ir(ᐸ'8259ᑁBḄ!³ᘤḄḄ´µe¶├஺¸seᐕº±+Ḅ\7Ḅᵭ஺»¼▭¾¾CPUḄ!¿ÀÁ=>ᐕºḄᵭ஺8-18.᡻>Fᢣ{±Ḅᨵghe\(MOVAX,1234HMOVAX,1234HMOVBX,5678HMOVBX,5678H

42PUSHBXPUSHBX

43PUSHAXPUSHAXRETIRETÃÄÅIRETᢣ{ÆRETᢣ{ᨵghe\஺r(᡻ÇÈÉᢣ{±IP=1234H஺᡻ÊÈÉᢣ{±CS=5678H,IP=1234HoRETᢣ{Ë'ÌcᵨÍÎOÏᚮ᪘⚔Bᑁ0ÓÔᑮIP஺IRETᢣ{Õ'ÖcᵨḄÍÎ⌕Ï᪘⚔4p⁚ÓÔᑮCSÆIP஺×ÏØᐭḄ᪗Ú³ᘤḄᑁ0Ô᪘ᑮ᪗Ú³ᘤ஺8-19ᔣ8259AḄAO=1ḄÛ&¨〈•ª{p᝞Ý=>XÕ)ª{p'Þᓄª{pICW2»e'àáª{p0CW1?r(⌕âãª{p'e'ICWK᝞'ICW1,ᑣ)ª{p'ICW2,ᔲᑣs'OCWU8-20.8259AḄÞᓄᨵHe\ḄæçᑖbéᵨᙠghᩩLFir(1
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44MOVAH,25H

45INT21HPOPDS8-23.>FḄ"#$1'Þᓄ#$"#$2'ôḄ!#$஺0A0HÆ20H['8259AḄÛ&ᙢᙬ஺ᑖ᪆)#$Îrõ⚪("#$1(INT-P2PROCFARPUSHDSPUSHAXPUSHDXMOVDX,OFFSETINT-P1MOVAX,SEGINT-P1MOVDS,AXMOVAL,78HMOVAH,25HINT21HPOPDXPOPAXPOPDSRETINT-P2ENDP"#$2(INT-P1PROCFARPUSHAXINC[SI]MOVAL,20HOUTOAOH,ALOUT20H,ALPOPAXIRETINT-P1ENDPõ((1)ᑖùú)Ḅ'ghi(2)CPUᑮᔣ⊤Ḅkûᙢᙬᓫᐗüýᐭ&ᙢᙬi(3)C*@ᑮ8259AḄkþᐭ'ì8259A×'í8259A?(4)ᙠÁᜐᳮ
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46ᦪ஺PQRᢣSᐹUḄBCDᦪ$VWᡂ*+,-ḄY,஺

4732=ḄᖪZ[ᙠCX:AX,NᦪᙠDXINTOOPROCFARPOPCX;3ᦋ^_ᙢᙬADDCX,2PUSHCXCMPBX,0JNENEXTLEADX,MESSAGE`◀ᦪ0,ab┯defMOVAH,09INT21HJMPFINISHNEXT:PUSHAX;E◀@,AXᨚZ<ᚮ᪘MOVAX,DX`k16=ᦋl16=MOVDX,0`k16=0DIVBXMOVCX,AX`mZᖪḄk16=POPAX`ឮol16=F◀ᦪAXDIVBX`ᖪCX:AX,NᦪDXFINISH:IRETINTOOENDP8-25.Yᑏqr4ABḄ*+,-$stuᩭwxḄy;,-஺z,-Ḅ{abᨵᐵABḄ┯def$ᯠ~$,-Ḅ᡻஺Yᑏqr,-$z,-Ḅ{஺,-⌕Wᡂᔣ⊤4ᐭCᙢᙬḄᦋᑏ$VᐹᨵABḄᩭ஺DATASEGMENTMESSAGEDB"ARITHMETICOVERFLOW.",ODH,OAH`$'MESSAG1DBUAXISTHERESULTJ,0DH,0AH,$DATAENDSSTACKSEGMENTSTACKSTACK'DB50DUP(O)STACKENDSCODESEGMENTASSUMECS:CODE,DS:DATA,SS:STACKSTARTPROCFARPUSHDSMOVAX,0PUSHAXMOVAX,DATAMOVDS,AXSTIMOVAL,4`mZuᔣ

48MOVAH,35H

49INT21HPUSHESPUSHBXPUSHDS;ᑏᔣ⊤MOVAX,SEGINT04MOVDS,AXMOVDX,OFFSETINT04MOVAL,4MOVAH,25HINT21HPOPDSMOVAX,8080H`@ADDAX,8080HINTOLEADX,MESSAG1`MOVAH,09INT21HPOPDX`ឮoᔣ⊤POPCXPUSHDSMOVDS,CXMOVAL,4MOVAH,25HINT21HPOPDSRETSTARTENDPINT04PROCFARLEADX,MESSAGE`AB$ab┯defMOVAH,09INT21HMOVAH,4CHINT21HFINISH:IRETINT04ENDPCODEENDSENDSTART

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51᡻]^ᵨINᢣ@~ᦪC#RDHI#HIINTRWᦔ#├4

52]^ᵭ#gIBFPᵯR#᜜b`ᐭvwᘤḄᦪC~d#`ᐭ¡ḄᦪC஺9-6..825512V()2#.CPU¢ᦈᑮ8255Ḅ]^HI᝞\&ᑖ᡻`ᐭ¤2¥¦`A¤2§ᙠ`ᐭஹ`Aᙳᐕ]^Ḅ©ª«#ᙠ]^]#@ᐭCḄN᝱ᩭ¬#ᑨ^OBF*IBFḄN᝱#ᩭ&ᑖ¦`ᐭ]^¥¦`A]^#g¯~°S¤2஺9-7.b8255AḄ4G?ᙢᙬ60H-63H,D³ᑏ«ᑡᔜ·©ªḄ¸¹ᓄ஺(1)A,B»ᙳbᡂ()0,AஹB`ᐭ#C`A஺(2)_AஹBb()1,ᙳ`ᐭiPC6ஹPC7`AiᐕA]^#Ἥ¾B]^஺(3)_Abᡂ()2iB()0,`AiPC0¿PC2`ᐭiᐕA]^஺(1)MOVAL,10010010BOUT63H,AL(2)MOVAL,10110110BOUT63H,ALMOVAL,0000100IBOUT63H,ALMOVAL,00000100BOUT63H,AL(3)MOVAL,1100000IBOUTAL,63HMOVAL,0000100IBOUT63H,ALMOVAL,00001101BOUT63H,AL9-8.DÀuÁÂÃH*ÂÃHḄᱯÄᔜ¦ÅƧÁÂÃH
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53〈2KBḄᦪJ◤⌕_ea

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59MOVAX,10000

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