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ADD AX, BX

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ÔòÓУºAL=(9)£¬CF =(10)

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1)²Ù×÷Â룺¸ø³öÖ¸ÁîÒªÍê³ÉµÄ²Ù×÷¡£ 2)²Ù×÷Êý£º¸ø³ö²ÎÓë²Ù×÷µÄ¶ÔÏó¡£

3)Á¢¼´Êý£ºÒª²ÎÓë²Ù×÷µÄÊý¾ÝÔÚÖ¸ÁîÖС£

4)¼Ä´æÆ÷²Ù×÷Êý£ºÒª²ÎÓë²Ù×÷µÄÊý¾Ý£¬´æ·ÅÔÚÖ¸¶¨µÄ¼Ä´æÆ÷ÖС£ 5)´æ´¢Æ÷²Ù×÷Êý£ºÒª²ÎÓë²Ù×÷µÄÊý¾Ý£¬´æ·ÅÔÚÖ¸¶¨µÄ´æ´¢µ¥ÔªÖС£ 4. ʲôÊÇѰַ·½Ê½£¿

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5. ÄÚ´æ²Ù×÷ÊýµÄÂß¼­µØÖ·±í´ïʽΪ¡ª¡ª¶Î»ùÖµ£ºÆ«ÒÆÁ¿£¬ÊÔд³öÆ«ÒÆÁ¿µÄÓÐЧµØÖ·EAµÄ¼ÆËãͨʽ¡£ ¡¾½â¡¿Æ«ÒÆÁ¿µÄÓÐЧµØÖ·EAµÄ¼ÆËãͨʽΪ£ºEA=»ùÖ·Öµ +±äÖ·Öµ +Î»ÒÆÁ¿¡£

ÆäÖУº»ùֵַΪ BX»òBPµÄÄÚÈÝ£¬±äֵַΪ SI»òDIµÄÄÚÈÝ£¬Î»ÒÆÁ¿Îª8 λdisp8»ò16λdispl6Êý¾Ý¡£ 6. Ö¸³öÏÂÁи÷Ö¸ÁîÄ¿µÄ²Ù×÷ÊýËùÔÚµÄλÖ㬲¢Ð´³öÏàÓ¦µÄµØÖ·¡£ 1) ADD [ SI] , Ax 2) MOV CL, BUF 3) DEC [ BP + 50H] 4) OUT 20H, AL

5) JMP 2000H: 0100H 6) JMP [BX] 7) JMP BX ¡¾½â¡¿

1)Ä¿µÄ²Ù×÷ÊýÔÚÄÚ´æµ¥ÔªÖУ¬ÆäÂß¼­µØÖ·Îª DS£º[SI]£¬ÆäÎïÀíµØÖ· = DS * 16 + S1¡£ 2)Ä¿µÄ²Ù×÷ÊýÔڼĴæÆ÷CLÖС£

3)Ä¿µÄ²Ù×÷ÊýÔÚÄÚ´æµ¥ÔªÖУ¬ÆäÂß¼­µØÖ·Îª SS£º[BP +50H]£¬ÆäÎïÀíµØÖ· = SS * 16 +BP + 50HO 4)Ä¿µÄ²Ù×÷ÊýÔÚ¶Ë¿ÚÖУ¬¶Ë¿ÚµØÖ·Îª£º20H¡£ 5)Ä¿µÄ²Ù×÷ÊýÔÚÖ¸ÁîÖС£

6)Ä¿µÄ²Ù×÷ÊýÔÚÄÚ´æµ¥ÔªÖУ¬ÆäÂß¼­µØÖ·Îª DS£º[BX]£¬ÆäÎïÀíµØÖ· = DS * 16 +BXo 7)Ä¿µÄ²Ù×÷ÊýÔڼĴæÆ÷BXÖС£

7. Á½¸öÂß¼­¶ÎµØÖ··Ö±ðΪ 2345H£ºOOOOHºÍ2000H£º3450H£¬ËüÃǶÔÓ¦µÄÎïÀíµØÖ·ÊǶàÉÙ£¿ ˵Ã÷ÁËʲô£¿

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¡¾½â¡¿ÕâÁ½¸öÂß¼­¶Î¶ÔÓ¦µÄÎïÀíµØÖ·¾ùΪ 23450H£¬ËµÃ÷¶ÔӦͬһ¸öÎïÀíµØÖ·¿ÉÒÔÓв» ͬµÄÂß¼­µØÖ·¡£¼´ÎïÀíµØÖ·ÊÇΩһµÄ£¬Âß¼­µØÖ·²»Î©Ò»¡£

8. ÉèDS = 3000H£¬BX = 2000H£¬[ SI]=IOOOH£¬MAX =l230H£¬ÔòÖ¸Áî MOV AX£¬MAX [BX][SI]µÄÔ´²Ù×÷ÊýÎïÀíµØÖ·Îª¶àÉÙ£¿

¡¾½â} Ô´²Ù×÷ÊýÎïÀíµØÖ·Îª = DS * 16 + BX + SI +MAX= 30000H+ (2000H + IOOOH + 1230H) = 34230H,

9. É赱ǰ BX =Ol58H£¬DI=lOA5H£¬Î»ÒÆÁ¿ =lB57H£¬DS = 2100H£¬SS =11OOH£¬BP = O1OOH£¬¶Î¼Ä´æÆ÷ĬÈÏ£¬Ð´³öÒÔϸ÷Ѱַ·½Ê½ÐØÎïÀíµØÖ·¡£ 1)Ö±½ÓѰַ¡£

2)¼Ä´æÆ÷¼ä½ÓѰַ (Éè²ÉÓÃBX)¡£ 3)¼Ä´æÆ÷Ïà¶ÔѰַ (Éè²ÉÓÃBP)¡£ 4)»ùÖ·±äַѰַ (Éè²ÉÓÃBXºÍ DI)o

5)Ïà¶Ô»ùÖ·±äַѰַ (Éè²ÉÓÃBP¡¢DIºÍÎ»ÒÆÁ¿)¡£ ¡¾½â¡¿

1)ÎïÀíµØÖ· = DS * 16 +Î»ÒÆÁ¿ = 21000H + lB57H =22857H¡£ 2)ÎïÀíµØÖ· = DS * 16 + BX =21000HÊ® Ol58H =21158H¡£ 3)ÎïÀíµØÖ· = SS * 16 + BP = 11OOOH +O1OOH = 111OOH¡£

4)ÎïÀíµØÖ· = DS * 16 + BX + DI=21000 + Ol58H +lOA5H = 221FDH¡£

5)ÎïÀíµØÖ· = SS*16 +BP+ DI = 11OOOH +O1OOH + lOA5H +lB57H = l3CFCH¡£

10. ÔÚ×ªÒÆÀàÖ¸ÁîÖУ¬¶Ô×ªÒÆµÄÄ¿±êµØÖ·µÄѰַ·½Ê½Óм¸ÖÖ£¿¶ÎÄÚ×ªÒÆµÄ·¶Î§ÊǶà´ó£¿¶Î¼ä ×ªÒÆµÄ·¶Î§ÊǶà´ó£¿Ìõ¼þ×ªÒÆµÄ·¶Î§ÊǶà´ó7

¡¾½â¡¿ÔÚ×ªÒÆÀàÖ¸ÁîÖУ¬¶Ô×ªÒÆµÄÄ¿±êµØÖ·µÄѰַ·½Ê½ÓжÎÄÚÖ±½Ó×ªÒÆ¡¢¶ÎÄÚ¼ä½Óת ÒÆ¡¢¶Î¼äÖ±½Ó×ªÒÆºÍ¶Î¼ä¼ä½Ó×ªÒÆ¡£¶ÎÄÚÖ±½Ó×ªÒÆµÄ·¶Î§Îª - 32768¡«+ 32767£¬¶ÎÄÚ¶Ì×ªÒÆ ÊÇÔÚµ±Ç° IP Æ«ÒÆÖµµÄ - 128 ~ + 127×ֽڵķ¶Î§ÄÚ (ÓÖ³ÆÎªÏà¶ÔѰַ)¡£¶Î¼ä×ªÒÆµÄ·¶Î§¿É ÒÔÔÚ1MB·¶Î§ÄÚ¡£Ìõ¼þ×ªÒÆÖ¸Á¾ùΪ¶ÎÄÚ¶Ì×ªÒÆ£¬Æä×ªÒÆµÄ·¶Î§Îª IP µ±Ç°ÖµµÄ- 128 ~ + 127×Ö½ÚµÄÆ«ÒÆÁ¿·¶Î§ÄÚ¡£

11. Ìõ¼þ×ªÒÆÖ¸Áî¾ùΪÏà¶Ô½ü×ªÒÆÖ¸ÁÇë½âÊÍ¡°Ïà¶Ô½ü×ªÒÆ¡±µÄº¬Òå¡£ÈôÐëÍù½ÏÔ¶´¦½øÐÐ Ìõ¼þ×ªÒÆ£¬Ó¦Ôõô×ö£¿ ¡¾½â¡¿¡°Ïà¶Ô¡±ÊÇÖ¸Ïà¶ÔÓÚÖ¸ÁîÖ¸Õë¼Ä´æÆ÷IPµÄµ±Ç°Öµ½øÐеÄ×ªÒÆ¡£Ïà¶Ô½ü×ªÒÆ·¶Î§ Ϊ- 128 ~ + l27. Èô×ªÒÆµÄÄ¿±êµØÖ·½ÏÔ¶£¬³¬³öÖ¸ÁîÒªÇóµÄ·¶Î§£¬Ôò¿ÉÔÚÏà¶Ô×ªÒÆµÄÄ¿±êµØ Ö·´¦£¬·ÅÖÃÒ»ÌõÎÞÌõ¼þ×ªÒÆÖ¸Á´Ó¶øÊµÏÖ½ÏÔ¶¾àÀëµÄ×ªÒÆ¡£

12. ÒÑÖª DS =5000H£¬CS =6000H£¬BX =1278H£¬SI =345FH£¬(546D7H)=0£¬(546D8H)= 80H¡£ÔÚ·Ö±ðÖ´ÐÐÏÂÃæÁ½Ìõ¶ÎÄÚ×ªÒÆÖ¸Áîºó£¬Êµ¼Ê×ªÒÆµÄÄ¿±êÎïÀíµØÖ·ÊǶàÉÙ£¿ ( 1 ) JMP BX (2) JMP [BX+SI] ¡¾½â¡¿

1)¶ÎÄÚ×ªÒÆµÄÄ¿±êµØÖ·´æ·ÅÔڼĴæÆ÷BXÖУ¬¹Êʵ¼ÊµÄ×ªÒÆµØÖ·ÊÇ6000H£ºl278H£¬Æä ÎïÀíµØÖ· = CS * 16 + BX = 60000H + l278H = 61278H.

2)¶ÎÄÚ×ªÒÆµÄÄ¿±êµØÖ·´æ·ÅÔÚÄÚ´æµ¥ÔªÖУ¬¸Ãµ¥ÔªµÄÎïÀíµØÖ· = DS * 16 + BX + SI = 50000H + l278H+345FH =546D7H£¬¹Êʵ¼ÊµÄ×ªÒÆµØÖ·ÊÇ6000H£º8000H£¬ÆäÎïÀíµØÖ·= CS * 16 + 8000H = 60000H + 8000H = 68000H.

13. ÈôÒ»¸ö¶ÑÕ»¶ÎµÄÆðʼµØÖ·Îª 3520H£ºOOOOH£¬Õ»ÇøµÄ³¤¶ÈΪ O1OOH£¬µ±Ç°SP µÄÄÚÈÝΪ OO20H£¬ÊÔÎÊ£º

1)Õ»¶¥µÄÎïÀíµØÖ·ÊÇʲô£¿ 2)Õ»µ×µÄÎïÀíµØÖ·ÊÇʲô£¿ 3)Õ»ÇøÖÐÒÑÓÐ×Ö½ÚÊýΪ¶àÉÙ£¿

4)´æÈëÊý¾Ýl234HºÍ5678HºóSPµÄÄÚÈÝÊǶàÉÙ£¿

¡¾½â¡¿¶ÑÕ»µÄ×î¸ßµØÖ·½ÐÕ»µ×£¬¶ÑÕ»Ö¸ÕëSP×ÜÊÇÖ¸ÏòÕ»¶¥¡£

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1)Õ»¶¥µÄÎïÀíµØÖ· = SS * 1OH + SP = 3520H * 1OH +OO80H = 35280H¡£ 2)Õ»µ×µÄÎïÀíµØÖ· = SS * IOH + OIOOH¶þ35300H 3)Õ»ÇøÖÐÒÑÓÐ×Ö½ÚÊý = 1OOH - 20H=OEOH¡£

4)8086/8088 µÄ¶ÑÕ»²Ù×÷Ϊ×Ö²Ù×÷¡£ÔÚѹÈËÁ½¸ö×ÖÊý¾Ýl234HºÍ5678Hºó£¬SP¼õ4£¬ ËùÒÔSPµÄÄÚÈÝΪ£ºSP - (×ÖÊý * 2)= OO20H -2 *2 =OO1CH£¬SSµÄÄÚÈݲ»±ä¡£ 14. ¼òÊöRETÖ¸ÁîÓëIRETÖ¸ÁîµÄÒìͬµã¡£

¡¾½â¡¿RETÖ¸ÁîÓëIRETÖ¸ÁîµÄÒìͬÈç±í3-1Ëùʾ¡£ ±í3£¬1£ºRETÖ¸ÁîÓë IRET Ö¸ÁîµÄÒìͬ

15. ²ÉÓÃ×îÉÙµÄÖ¸ÁʵÏÖÏÂÊöÒªÇóµÄ¹¦ÄÜ¡£ 1)AHµÄ¸ß4λÇå0¡£

2)½« AH ÖеķÇѹËõÐÍBCDÂëת»¯³ÉASCIIÂë¡£ 3)AILµÄ¸ß4λȡ·´¡£

4)ALµÄ¸ß4Î»ÒÆµ½µÍ4룬¸ß4λÇå0¡£ ¡¾½â¡¿

1) AND AH, OFH 2) OR AH, 30H 3) XOR AL, OFOH 4) MOV CL, 4 SHR AL, CL

16. ÊÔ±È½Ï SUB AL£¬O9HÓë CMP AL£¬O9HÕâÁ½ÌõÖ¸ÁîµÄÒìͬ£¬ÈôAL = O8H£¬Ð´³öÖ´ÐÐ Á½ÌõÖ¸Áîºó£¬¶Ô6¸ö״̬±ê־λµÄÓ°Ïì¡£

¡¾½â]SUB AL£¬O9HÓë CMP AL£¬O9HÖ¸ÁÄܵĶԱÈÈç±í 3-2Ëùʾ¡£ ±í3-2 SUB AL£¬O9HÓë CMP AL£¬09Ö¸ÁÄܵĶԱÈ

17. ÔĶÁÏÂÃæ8086³ÌÐò¶Î£¬Ö¸³ö¸Ã³ÌÐò¶ÎµÄ¹¦ÄÜ¡£ AGN1: MOV AL, [ DI] INC DI

TEST AL,04H

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JE AGN1 ¡­¡­. AGN2: ¡­¡­

¡¾½â¡¿ µ± ALµÄ D2λΪ1ʱ£¬³ÌÐòתÖÁAGN2¡£

18. ·ÖÎöÏÂÃæ³ÌÐò¶Î£¬·ÖÎöALÂú×ãʲôÌõ¼þ³ÌÐò½«×ªµ½LOP±êºÅÖ´ÐУ¿ CMP AL, OFFH JNL LOP ¡­¡­ LOP: ¡­¡­

¡¾½â¡¿Ö¸Áî JNL NEXTΪ¶ÔÁ½¸ö´ø·ûºÅÊý±È½ÏºóµÄ״̬½øÐÐÅжϣ¬ÊµÏÖ×ªÒÆµÄÌõ¼þת ÒÆÖ¸Áî¡£Òò´Ë£¬Ö»Óе±ALÖеĴø·ûºÅÊý²»Ð¡ÓÚ (¼´´óÓÚµÈÓÚ)OFFH (¼´Îª-1)ʱ£¬Âú×ã Ìõ¼þ²ÅÄÜתÖÁ±êºÅNEXT´¦Ö´ÐС£¹ÊAL¡Ý-1¡£

19. °ÑÊ×µØÖ·Îª BLOCKµÄ×ÖÊý×éµÄµÚ 6¸ö×Ö´«Ë͵½CX¼Ä´æÆ÷ÖС£ÊÔд³ö¸ÃÖ¸ÁîÐòÁУ¬ÒªÇó ʹÓÃÁ½ÖÖѰַ·½Ê½¡£

¡¾½â1 1)ÒÔBXµÄ¼Ä´æÆ÷¼ä½ÓѰַ£º MOV BX, BLOCK+ 10

MOV CX£¬[BX]£»½« BLOCK¿ªÊ¼µÄµÚ 6¸ö×ֵĵØÖ·´æÈë CX 2)ÓÃBX¡¢SIµÄ»ùÖ·±äַѰַ£º LEA BX, BLOCK MOV SI, 10

MOV CX£¬[BX +SI]£»½« BLOCK¿ªÊ¼µÄµÚ 6¸ö×ֵĵØÖ·´æÈë CX

20. ÒÑÖª AX =789AH£¬BP = OF4A2H£¬CF =1£¬Ð´³öÏÂÁÐÖ¸Áîµ¥¶ÀÖ´ÐкóµÄ½á¹û¼° CF ×´ ̬¡£

1) ADD AX, 0800H 2£©ADD AX,5 3) DEC AX 4)SUB AX,5678H 5) AND AX, 00FFH 7) SAR AX, 1

9) 5BB [ BP], 0A034H ¡¾½â¡¿

1 ) AX = 809AH, CF = 0 3 ) AX = 7899H , CF = 1 5 ) AX = 009AH , CF = 0 7 ) AX = 3C4DH , CF = 0 9) Bp = 546DH, CF = 0 2)ADC AX, 5

4) SUB AX, 5678H 6) OR Ax , 8888H 8) RCR AX, 1

2) AX = 78AOH, CF = 0 4) AX = 2222H, CF = 0 6) Ax = 0F89AH , CF = 0 8 ) AX =OBC4DH , CF = 0

21£¬Ð´³öÂú×ãÏÂÁи÷ÒªÇóµÄÖ¸Á

1)½«ÓÐЧµØÖ·Îª1000HµÄÄÚ´æµ¥ÔªÄÚÈÝË͵½BX¼Ä´æÆ÷ÖС£

2)½«Æ«ÒƵØÖ·Îª1000H µÄÄÚ´æµ¥ÔªµÄÓÐЧµØÖ·Ë͵½BX¼Ä´æÆ÷ÖС£ 3)½«Ô´²Ù×÷ÊýΪSI¼ä½ÓѰַ·½Ê½ÖеÄÊý¾ÝË͵½SI¼Ä´æÆ÷ÖС£

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