【简答题】设(R0)=20H,(R1)=30H,(20H)=20H,(21H)=30H,(22H)=40H,(30H)=E0H,(31H)=50H,(32H)=60H。 CLR C MOV R2, #3LOOP: MOV A, @R0 ADDC A, @R1 MOV @R0, A INC R0 INC R1 DJNZ R2, LOOP SJMP $程序执行后,(20H)= 。注意:答案用...
【简答题】已知:(30H)=37H,(31H)=21H,(50H)=75H,(51H)=10H执行以下子程序: MOV R0,30H MOV R1,50H MOV R7,2 CLR C LOOP:MOV A,@R0 ADDC A.@R1 DA A MOV @R0.A INC R0 INC R1 DJNZ R7,LOOP RET 则结果为:(30H)=______H,(31H)=______H,(R1)=__...
【判断题】比拟的作用是使所写的人或物形象具体、生动活泼。
【简答题】设(R0)=20H,(R1)=30H,(20H)=20H,(21H)=30H,(22H)=40H,(30H)=E0H,(31H)=50H,(32H)=60H。 CLR C MOV R2, #3LOOP: MOV A, @R0 ADDC A, @R1 MOV @R0, A INC R0 INC R1 DJNZ R2, LOOP SJMP $程序执行后,(R0)= 。注意:答案用十六进制...
【单选题】经纬仪有四条主要轴线,当竖轴铅垂,视准轴垂直于横轴时,但横轴不水平,此时望远镜横轴旋转时,则视准轴的轨迹是:
【简答题】已知:(30H)=83H,(31H)=0ABH,(32H)=16H,(33H)=89H,(34H)=19H,执行以下子程序后: MOV R0,30H MOV R7,0 MOV R6,0 MOV R2,4 LOOP:MOV A,@R0 ADD A,R6 MOV R6,A JNC CONT INC R7 CONT:INC R0 DJNZ R2,LOOP RET 结果为=(R7)=______H,(R6...
【简答题】MOV A,#10H MOV DPTR,#3100H MOV R0,#30H MOV 31H,#89H MOV @R0,#1FH 整个程序执行后 XCHD A,@R0 (A)= _ ______ MOV R0,31H (R0)= ___ ______ XCH A,31H (30H)= ...
【多选题】3液压辅助元件的主要种类有( )、( )、( )、( )与压力计开关以及油箱等。