已知(SP)=40H,RAM(60H)=FFH,执行PUSH 60H后,(SP)为()A.3FHB.41HC.60HD.FFH
已知(SP)=40H,RAM(60H)=FFH,执行PUSH 60H后,(SP)为()
A.3FH
B.41H
C.60H
D.FFH
已知(SP)=40H,RAM(60H)=FFH,执行PUSH 60H后,(SP)为()
A.3FH
B.41H
C.60H
D.FFH
已知(SP)=40H,片内RAM(60H)=0FH,执行PUSH 60H和POP 50H两条指令后,SP及50H中内容各为 ()
A.(SP)=39H,(50H)=23H
B.(SP)=40H,(50H)=0FH
C.(SP)=41H,(50H)=0FH
D.(SP)=40H,(50H)=60H
A.SP=2502H,BX=1020H
B.SP=2504H,BX=4030H
C.SP=2504H,BX=3040H
D.SP=2500H,BX=2010H
A.SP=2504H、BX=4030H
B.SP=2504H,BX=3040H
C.SP=2502H,BX=1020H
D.SP=2500H,BX=2010H
设内RAM(40H)=FFH,分析以下程序连续运行的结果。
MOV 50H,#40H ;(50H)=40H
MOV R1,#50H ;R1=50H
MOV A,@R1 ;A=(R1)=(50H)=40H
MOV R0,A ;R0=40H
MOV 60H,@R0 ;(60H)=(R0)=(40H)=FFH
MOV 30H,60H ;(30H)=FFH
设内RAM (20H)=60H,(30H)=10H,(40H)=20H,(50H)=40H,分析以下程序连续运行的结果。
MOV R0,# 30H ;R0=30H
MOV @R0,40H ;(30H)=20H
MOV A,50H ;A=40H
MOV R1,30H ;R1=20H
MOV B,@RO ;B=20H
MOV PSW,@ R1 ;PSW=60H
A.50H
B.51H
C.60H
D.61H
A. 70H
B. B.80H
C. C.30H
D. D.60H
A.70H
B.80H
C.30H
D.60H
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