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Ch3exercise - 3 8088/8086 3.1 8086/8088CPU 8086/8088CPU 8...

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1 3 8088/8086 第第第第 3.1 什什什什什什什什 8086/8088CPU 什什什什什什什什什什 什什什什什什什什什什什什什什什什什什什什什什 . 8086/8088CPU 什什什什什什什什什什什什什什什什什什什什 什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什 8 什什什什什什 3.2 什什 DS)=6000H 什什 ES)=2000H 什什 SS)=1500H 什 什 Si 什 =00A0H, 什 BX)=0800H 什 (BP)=1200H 什什什什什 VAR 什 0050H. 什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什
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2 (1) MOV AX,BX (2) MOV DL,80H (3) MOV AX, VAR (4) MOV AX,VAR[BX][SI] (5) MOV AL,'B' (6) MOV DI, ES: [BX] (7) MOV DX,[BP] (8) MOV BX 什 20H[BX] 什什 (1) 什什什什什什什什什什什什什什什什什什什什 BX 什什什什什什什什 . (2) 什什什什什什什什 80H 什什什什什什什什什什 MOV 什什什 (3 什什什什什什 什 4 什什什什什什什什什什什什 什什什什什什什什 =(DS) × 16 什 (SI) 什 (BX) 什 VAR = 60000H 什 00A0H 什 0800H 什 0050H 什 608F0H
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3 (5) 什什什什 (6) 什什什什什什什 . 什什什什什什什什 = (ES) × 16 什 (BX) = 20000H 什 0800H = 20800H (7) 什什什什什什什什 什什什什什什什什 = (SS) × 16 什 (BP) = 15000H 什 1200H= 16200H (8) 什什什什什什什什 什什什什什什什什什 (DS) × 16 什 (BX) 什 20H = 60000H 什 0800H 什 20H= 60820H
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4 3.3 什什 (DS)= 212AH,(CS)= 0200H,(IP)= 1200H,(BX)= 0500H, 什什什 DATA=40H 什 (217A0H) =2300H 什 (217E0H)=0400H 什 (217E2H) =9000H 什什什什什什什什什什什什什什 . (1) JMP 2300H (2) JMP WORD PTR[BX] (3) JMP DWORD PTR[BX+DATA] 什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什 什什什什什什什什什什什 IP 什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什什 (1) 什什什什什什什什什什什什什什 =(CS) × l6 +2300H =02000H+2300H=04300H
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5 (2) 什什什什什什什什什什什什什什 = (CS) × 16+ [BX] = (CS) × l6+(217A0H) =02000H+2300H=04300H
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