鍚堢悊鐨勶紝鍏变韩Cache浣垮緱鍙屾牳鏁版嵁浼犻�掗�熷害鏇村揩锛屽叾娆℃槸AMD鐨勭粨鏋勶紝姣旇緝宸�鐨勬槸Pentium D鐨勮繖绉嶄娇鐢ㄥ墠绔�鎬荤嚎鐩歌繛鐨勭粨鏋勶紝杩欐牱杩炴帴鐨勪袱涓�鏍稿績蹇呯劧浼氫骇鐢熸�荤嚎浜夋姠锛屽奖鍝嶆�ц兘銆?

17. 濡傛灉AX=902FH, BX=8761H锛屽垯鍋氳繃AX+BX鍚庯紝EFLAG瀵勫瓨鍣ㄧ殑浣?浣嶄細鏄�澶氬皯锛�

绛旓細EFLAG瀵勫瓨鍣ㄧ殑浣?浣嶆槸00010111B

18. 鍦?088/8086涓�锛岄�昏緫鍦板潃FFFF鈭?001, 00A2鈭?7F鍜孊800鈭?73F鐨勭墿鐞嗗湴鍧�鍒嗗埆鏄�澶氬皯锛�

绛旓細鐗╃悊鍦板潃锛濇�靛湴鍧�脳10H锛嬪亸绉诲湴鍧�

鎵�浠�FFFF锛?001鐨勭墿鐞嗗湴鍧�鏄疐FFFH脳10H锛?001H锛滷FFF1H 00A2锛?7F鐨勭墿鐞嗗湴鍧�鏄?0A2脳10H锛?37FH=00D9FH B800锛?73F鐨勭墿鐞嗗湴鍧�鏄疊800脳10H锛?73F=B973FH

19. 鍦?088/8086涓�锛屼粠鐗╃悊鍦板潃388H寮�濮嬮『搴忓瓨鏀句笅鍒椾笁涓�鍙屽瓧鑺傜殑鏁版嵁锛�651AH, D761H鍜?07BH锛岃�烽棶鐗╃悊鍦板潃388H, 389H, 38AH, 38BH, 38CH鍜?8DH 6涓�鍗曞厓涓�鍒嗗埆鏄�浠�涔堟暟鎹�锛� 绛旓細

鍦板潃

鍐呭��

388H 1AH 389H 65H 38AH 61H 38BH D7H 38CH 7BH 38DH 00H

6

绗?绔?

1銆佸亣瀹氾紙DS锛?2000H锛岋紙ES锛?2100H锛岋紙SS锛?1500H锛岋紙SI锛?00A0H锛岋紙BX锛?0100H锛岋紙BP锛?0010H锛屾暟鎹�鍙橀噺VAL鐨勫亸绉诲湴鍧�涓?050H銆傝�锋寚鍑轰笅鍒楁寚浠ょ殑婧愭搷浣滄暟瀛楁�垫槸浠�涔堝�诲潃鏂瑰紡锛屽苟缁欏嚭瀹冪殑閫昏緫鍦板潃鍜岀墿鐞嗗湴鍧�銆?

锛?锛塎OV AX锛?ABH 锛?锛塎OV AX锛孊X 锛?锛塎OV AX锛孾100H] 锛?锛塎OV AX锛孷AL

锛?锛塎OV AX锛孾BX] 锛?锛塎OV AX锛孍S锛歔BX] 锛?锛塎OV AX锛孾BP] 锛?锛塎OV AX锛?[SI] 锛?锛塎OV AX锛孾BX+10H] 锛?0锛塎OV AX锛孷AL[BX] 锛?1锛塎OV AX锛孾BX][SI] 锛?2锛塎OV AX锛孷AL[BX][SI] 绛旓細锛?锛夌珛鍗虫暟瀵诲潃 锛?锛夊瘎瀛樺櫒瀵诲潃

锛?锛夌洿鎺ュ�诲潃锛岄�昏緫鍦板潃鏄?000:0100H锛岀墿鐞嗗湴鍧�鏄?0100H 锛?锛夌洿鎺ュ�诲潃锛岄�昏緫鍦板潃鏄?000:0050H锛岀墿鐞嗗湴鍧�鏄?0050H

锛?锛夊瘎瀛樺櫒闂存帴瀵诲潃锛岄�昏緫鍦板潃鏄?000:0100H锛岀墿鐞嗗湴鍧�鏄?0100H 锛?锛夊瘎瀛樺櫒闂存帴瀵诲潃锛岄�昏緫鍦板潃鏄?100:0100H锛岀墿鐞嗗湴鍧�鏄?1100H 锛?锛夊瘎瀛樺櫒闂存帴瀵诲潃锛岄�昏緫鍦板潃鏄?500:0010H锛岀墿鐞嗗湴鍧�鏄?5010H 锛?锛夊瘎瀛樺櫒闂存帴瀵诲潃锛岄�昏緫鍦板潃鏄?000:00A0H锛岀墿鐞嗗湴鍧�鏄?00A0H 锛?锛夊熀鍧�瀵诲潃锛岄�昏緫鍦板潃鏄?000:0110H锛岀墿鐞嗗湴鍧�鏄?0110H 锛?0锛夊熀鍧�瀵诲潃锛岄�昏緫鍦板潃鏄?000:0150H锛岀墿鐞嗗湴鍧�鏄?0150H

锛?1锛夊熀鍧�鍙樺潃瀵诲潃锛岄�昏緫鍦板潃鏄?000:01A0H锛岀墿鐞嗗湴鍧�鏄?01A0H 锛?2锛夊熀鍧�鍙樺潃鐩稿�瑰�诲潃锛岄�昏緫鍦板潃鏄?000:01F0H锛岀墿鐞嗗湴鍧�鏄?01F0H

2銆佸亣瀹氾紙DS锛?2000H锛岋紙ES锛?2100H锛岋紙SS锛?1500H锛岋紙SI锛?00A0H锛岋紙BX锛?0100H锛岋紙BP锛?0010H锛岋紙SP锛?0010H锛屾暟鎹�鍙橀噺VAL鐨勫亸绉诲湴鍧�涓?050H銆傚唴瀛樺偍鍣ㄤ腑鏁版嵁鍗曞厓濡備笅锛歔20100H]=12H锛孾20101H]=34H锛孾20050H]=56H锛孾20051H]=78H锛孾21100H]=0ABH锛孾21101H]=90H锛孾15010H]=0CDH锛孾15011H]=0EFH锛孾200A0H]=01H锛孾200A1H]=23H锛孾20150H]=45H锛孾20151H]=67H锛孾201A0H]=89H锛孾201A1H]=0AH锛孾201F0H]=0BCH锛孾201F1H]=0DEH銆傝�佹眰鍐欏嚭涓嬪垪鎸囦护鍗曠嫭鎵ц�岀殑缁撴灉銆?

锛?锛塎OV AX锛?ABH 锛?锛塎OV AX锛孊X 锛?锛塎OV AX锛孾100H] 锛?锛塎OV VAL锛孊H

锛?锛塎OV AX锛孾BX] 锛?锛塎OV AX锛孍S锛歔BX] 锛?锛塎OV AX锛孾BP] 锛?锛塎OV AX锛?[SI] 锛?锛塎OV AX锛孾BX+50H] 锛?0锛塎OV VAL[BX]锛孊P 锛?1锛塎OV AH锛孾BX][SI] 锛?2锛塎OV AL锛孷AL[BX][SI] 锛?3锛塒USH SI 锛?4锛塒OP AX 绛旓細锛?锛堿X=00ABH 锛?锛堿X=0100H 锛?锛堿X=3412H 锛?锛塠20050H]=01H 锛?锛堿X=3412H 锛?锛堿X=90ABH 锛?锛堿X=0EFCDH 锛?锛堿X=2301H 锛?锛堿X=6745H 锛?0锛塠20150H]=10H锛孾20151H]=00H 锛?1锛堿H=89H 锛?2锛堿L=0BCH 锛?3锛塠1500FH]=00H锛孾1500EH]=0A0H 锛?4锛堿X=0EFCDH

3銆佹寚鍑轰笅鍒楁寚浠ょ殑閿欒��锛? 锛坙锛塎OV AH锛孊X

7

锛?锛塎OV [BX]锛孾SI] 锛?锛塎OV AX锛孾SI][DI]

锛?锛塎OV MYDAT[BX][SI]锛孍S锛欰X 锛?锛塎OV BYTE PTR[BX]锛?000 锛?锛塎OV BX锛孫FFSET MYDAT[SI] 锛?锛塎OV CS锛孉X

绛旓細锛?锛変袱涓�鎿嶄綔鏁伴暱搴︿笉涓�鑷?

锛?锛変袱涓�鎿嶄綔鏁颁笉鑳介兘鏄�瀛樺偍鍣ㄦ搷浣滄暟

锛?锛夊彉鍧�瀵诲潃鏂瑰紡涓嶈兘浣跨敤涓や釜鍙樺潃瀵勫瓨鍣?锛?锛夊瘎瀛樺櫒瀵诲潃娌℃湁娈佃秴瓒婄敤娉?

锛?锛変袱涓�鎿嶄綔鏁伴暱搴︿笉涓�鑷达紙鎴?000瓒呭嚭瀛楄妭鏁版嵁鑼冨洿锛?锛?锛塐FFSET鍙�瀵瑰彉閲忓拰鏍囧彿琛ㄧず鐨勭洿鎺ュ�诲潃鏈夌敤 锛?锛塁S涓嶈兘鍋氱洰鐨勫瘎瀛樺櫒

16銆侀槄璇荤▼搴忥細

MOV CX锛?00锛?

MOV SI锛?FFFFH锛?

NEXT锛?INC SI锛? CMP BYTE PTR [SI]锛?A'锛? LOOPNZ NEXT锛? EXIT锛?

璇ョ▼搴忔�电殑鍔熻兘鏄痏___________________________銆?

绛旓細浠嶥S:0000寮�濮嬪湪杩炵画鐨?00涓�瀛楄妭涓�鏌ユ壘瀛楃�︹�橝鈥?

17銆?绋嬪簭濉�绌猴�?

鎶婂唴瀛樹腑浠嶱ACKED寮�濮嬬殑8涓�瀛楄妭鍗曞厓涓�鐨?6浣嶇粍鍚圔CD鏁拌浆鎹㈡垚闈炵粍鍚圔CD鏁帮紝骞舵妸缁撴灉瀛樻斁鍦ㄤ粠UNPACKED寮�濮嬬殑16涓�瀛楄妭鍗曞厓涓�锛? MOV DX锛宊__________锛? MOV CL锛宊__________ MOV SI锛?锛? MOV DI锛宊_____________锛? CONVERT锛?MOV AL锛孾SI+PACKED]锛? MOV AH锛孉L锛? AND AL锛?FH锛? ________________锛? MOV [DI+UNPACKED]锛宊_____________锛? ADD DI锛宊____________锛? ______________锛? DEC DX锛? JNZ CONVERT锛?

绛旓細

HLT锛?

MOV DX锛宊__8________锛? MOV CL锛宊__4________

8

MOV SI锛?锛? MOV DI锛宊0_______锛? CONVERT锛?MOV AL锛孾SI+PACKED]锛? MOV AH锛孉L锛? AND AL锛?FH锛? _SHR AH, CL______锛? MOV [DI+UNPACKED]锛宊___AX__锛? ADD DI锛宊____2________锛? INC SI_锛? DEC DX锛? JNZ CONVERT锛? HLT锛?

姹囩紪璇�瑷�琛ュ厖浣滀笟绛旀��

1. 瀵诲潃鏂瑰紡灏忕粨銆傝�锋牴鎹�宸插～鐨勬牸寮忥紝瀹屾垚涓嬮潰琛ㄤ腑鐨勭┖鐧介儴鍒嗭細 瀵诲潃鏂瑰紡 鎿嶄綔鏁扮墿鐞嗗湴鍧�锛圥A锛?鎸囦护鏍煎紡涓句緥 绔嬪嵆瀵诲潃 鎿嶄綔鏁扮敱鎸囦护缁欏嚭

MOV DX, 100H; 瀵勫瓨鍣ㄥ�诲潃 MOV AX, BX; 鐩存帴瀵诲潃 鎿嶄綔鏁扮殑鏈夋晥鍦板潃鐢辨寚浠ょ洿鎺ョ粰鍑? 瀵勫瓨鍣ㄩ棿鎺?BX)

瀵诲潃 PA=(DS)脳16+(SI)

(DI)

鎴?(SS)脳16+(BP) 鍩哄潃瀵诲潃 鍙樺潃瀵诲潃 鍩哄潃鍙樺潃瀵?/p>

鍧� 鍩哄潃鍙樺潃鐩?

瀵瑰�诲潃 绛旓細

瀵诲潃鏂瑰紡 鎿嶄綔鏁扮墿鐞嗗湴鍧�锛圥A锛?鎸囦护鏍煎紡涓句緥 绔嬪嵆瀵诲潃 鎿嶄綔鏁扮敱鎸囦护缁欏嚭

MOV DX, 100H; 瀵勫瓨鍣ㄥ�诲潃 鎿嶄綔鏁板湪瀵勫瓨鍣ㄤ腑

MOV AX, BX; 鐩存帴瀵诲潃 鎿嶄綔鏁扮殑鏈夋晥鍦板潃鐢辨寚浠ょ洿鎺ョ粰鍑?MOV AX, [1234H] 瀵勫瓨鍣ㄩ棿鎺?BX)

MOV AX, [BX] 瀵诲潃

PA=(DS)脳16+(SI)

MOV AX, [SI] (DI)

MOV AX, [DI] 鎴?(SS)脳16+(BP)

MOV AX, [BP] 鍩哄潃瀵诲潃 PA=(DS)脳16+(BX)+浣嶇Щ閲?MOV AX, BUFF[BX] PA=(SS)脳16+(BP)+浣嶇Щ閲?MOV AX, BUFF[BP] 鍙樺潃瀵诲潃

PA=(DS)脳16+(SI)+浣嶇Щ閲?MOV AX, BUFF[SI] PA=(DS)脳16+(DI)+浣嶇Щ閲?

MOV AX, BUFF[DI]

9

鍩哄潃鍙樺潃瀵?/p>

鍧�

PA=(DS)脳16+(BX)+(SI) PA=(DS)脳16+(BX)+(DI) PA=(SS)脳16+(BP)+(SI) PA=(SS)脳16+(BP)+(DI) PA=(DS)脳16+(BX)+(SI) +浣嶇Щ閲?PA=(DS)脳16+(BX)+(DI)+浣嶇Щ閲?PA=(SS)脳16+(BP)+(SI) +浣嶇Щ閲?PA=(SS)脳16+(BP)+(DI)+浣嶇Щ閲?

MOV AX, [BX][SI] MOV AX, [BX+DI] MOV AX, [BP][SI] MOV AX, [BP+DI] MOV AX, BUFF[BX][SI] MOV AX, BUFF[BX+DI] MOV AX, BUFF[BP][SI] MOV AX, BUFF[BP+DI]

鍩哄潃鍙樺潃鐩稿�瑰�诲潃

2.鎸囧嚭涓嬪垪8088鎸囦护鐨勯敊璇�锛�

锛?锛?MOV 2000, BP 锛?锛?PUSH 2000 锛?锛?POP CS 锛?锛?XLAT BX 锛?锛?MUL AX, BX 锛?锛?SHL DX, 8 锛?锛?IN AX, 0382H 锛?锛?OUT AX, 20H 锛?锛?MOVSB DI, SI 锛?0锛?LOOP CX 绛旓細锛?锛夌珛鍗虫暟涓嶈兘鍋氱洰鐨勬搷浣滄暟

锛?锛?088姹囩紪鐨凱USH涓嶈兘浣跨敤绔嬪嵆鏁板仛鎿嶄綔鏁?锛?锛塁S涓嶈兘鍋歅OP鎸囦护鐨勬搷浣滄暟 锛?锛塜LAT涓瑽X鏄�闅愬惈鎿嶄綔鏁� 锛?锛塎UL鎸囦护鍙�鏈変竴涓�鎿嶄綔鏁�

锛?锛?088鐨凷HL鎸囦护绉讳綅浣嶆暟濡傛灉鐢ㄧ珛鍗虫暟鍒欏彧鑳芥槸1 锛?锛塈N鎸囦护涓?6浣嶇��鍙ｅ湴鍧�瑕佺敤DX浣滀负鎿嶄綔鏁?锛?锛塐UT鎸囦护涓や釜鎿嶄綔鏁板弽浜?锛?锛塎OVSB鎸囦护鎿嶄綔鏁板潎闅愬惈

锛?0锛塋OOP鎸囦护涓�鐨凜X鎿嶄綔鏁版槸闅愬惈鐨?

3. 鎸夎�佹眰缂栧啓涓嬮潰鐨勭▼搴忔�?

1) 鍒╃敤绉讳綅鎸囦护璁＄畻DX=3脳AX锛?脳BX锛屽亣璁句负鏃犵�﹀彿鏁拌繍绠楋紝鏃犺繘浣嶃�?2) 鐢ㄩ�昏緫杩愮畻鎸囦护瀹炵幇鏁板瓧0~9鐨凙SCII鐮佷笌闈炲帇缂〣CD鐮佺殑浜掔浉杞�鎹� 3) 鎶奃X.AX涓�鐨勫弻瀛楅�昏緫鍙崇Щ4浣?

4) 鍋囪�句�?A00H:0000寮�濮嬬殑4涓�瀛楄妭涓�瀛樻斁浜?涓�闈炲帇缂╃殑BCD鐮侊紝鐜板湪鎸夌収浣庡湴

鍧�瀵逛綆浣嶏紝楂樺湴鍧�瀵归珮浣嶇殑鍘熷垯锛屽皢浠栦滑鍚堝苟鍒癉X涓�銆?绛旓細

1) MOV CX, AX SHL AX, 1 ; AX*2 ADD AX, CX ; AX*3 MOV DX, BX MOV CL, 3 SHL DX, CL ; BX*8

10