1、8382016 12 25123150 32 / 4012 37.5 B H3 84 SP =2000H, AX BX SP=56 x =11011100B x789 SP=1000H AX=2000H,BX=3000H PUSH AX SP= PUSH BX POP AX SP= AX= ,BX=1011 MOV AX 0 MOV BX 1 MOV CX 1004 1AA ADD AX BXINC BXLOOP AAHLT(AX)= (BX)= (CX)=3 301 8086 8088A CLK B INTR C NMI D ALE2A. 4LOOP B. DELAYIS C. MAINA/
2、B D. GAMA$13A. CX B. BX C. BP D. DI4 8086/8088 AL I/OA. OUT , AL B. MOV AL, C. OUT AL, D. IN AL, 5 MOV AL,BX+SI+25A. B. C. D. 6A. ALU B. C. D. 7 8086A. MN/ = 0 B. MN/ = 1 C. INTR = 1 D. HOLD = 18 CPU (Cache)A. B. CPUC. D. 9A. 1K B. 64K C. 1M D. 1G10 82554 2A A BB C 4 4C C 4 4D A B C2 / 20 12 NOP3 DEC ECX SUB ECX,14 32 6456 8086 READY7 Handshake8 I/O910 I/O I/O10/ 20 12 420 1 BUF 100 , COUNT 10 2 2000H 50 3000H 104 3208253 90H 93H 8253 0 100s 8253 1 1S1. 2. 0 13. 8253 INIT82534 4
