程序阅读填空题1
答案：
（A）=8CH
程序阅读填空题2
(R0)= 02H ,(R1)=31H ,(P1)=02H ,(B)= 20H ,(2020H)=0DH
程序阅读填空题3
(21H)= 4BH (P2)= 27H (Ac)=1
(DPTR)= 2F7FH (3000H)= 7FH (3001H)= 0E5H
程序阅读填空题4
(P2)= 00H (Cy)= 0 (Ac)=1
(DPTR)= 6666H (2200H)= 0E5H (SP)= 61H
程序阅读填空题(5)
(A)= 0F8H (R3)= 00H
(20H)= 40H (DPTR)= 0007H (SP)= 61H
程序阅读填空题6
(A)= 74H (R0)= 10H
(DPTR)= 0121H (P1)= 10H (20H)= 21H
程序阅读填空题7
(A)= 5CH (R0)= 98H (DPTR)= 0CB31H (P1)= 0BCH (30H)= 31H (B)=02H
程序阅读填空题8
(A)= 00H (R3)= 00H (20H)= 01H (DPTR)= 00FFH (SP)= 51H (Cy)=1
程序阅读填空题9
(R0)= 21H (R1)= 21H (P1)= 12H (B)= 12H (2200H)= 34H (A)=34H
程序阅读填空题10
(A)= 55H (R2)= 3CH (20H)= 3AH (DPTR)= 3C20H (SP)= 08H (Cy)=0
程序阅读填空题11
(A)= 40H (R0)= 25H (DPTR)= 21FFH (P1)= 24H (20H)= 52H
程序阅读填空题12
(DPTR)=5152H,(SP)=51H
程序阅读填空题13
(A)=34H CY=1 OV=1 AC=1
程序阅读填空题14
答案：
将 0 传送到外部数据存储器的 2451H单元
程序阅读填空题15
(A)=0CBH
程序阅读填空题16
(P2)= 05H (Cy)= 0
(R0)= 28H (22H)= 02H
程序阅读填空题17
(A)= 71H (Cy)= 0
(DPTR)= 0000H (2000H)= 03H (R0)= 21H
程序阅读填空题18
(A)= 01H (R0)= 20H
(DPTR)= 0008H (1000H)= 08H (SP)= 60H
程序阅读填空题19
(A)= 98H (20H)= 19H (2001H)= 25H
(21H)= 26H (22H)= 0E2H
程序阅读填空题20
(20H)= 0FBH (P1)= 0BFH
(DPTR)= 3000H (3100H)= 0CFH (3101H)= 0C0H
程序阅读填空题21
(22H)=53H (Cy)=0 (1500H)=00H
(R2)=00H (R3)=0FFH
程序阅读填空题22
(A)= 51H
程序阅读填空题23
(40H)=02H (A)=0AAH
程序阅读填空题24
（A）= 0AH （10H）=50H （2EH） = 1FH
（40H） = 1FH （60H） = 3DH
程序阅读填空题25
(A)= 0CBH (R0)= 17H (17H)= 37H
程序阅读填空题26
(A)= 92H (Cy)= 0
(DPTR)=0FF00H (3000H)=31H (R0)= 20H
程序阅读填空题27
(P1)= 0F7H (Cy)= 1
(R0)= 20H (23H)= 0FDH (SP)= 67H
程序阅读填空题28
(A)= 0FDH (R0)= 21H P=1
(DPTR)= 033FH (0300H)= 3FH (SP)= 65H