将累加器中的数据送到片外RAM的40H单元,可执行指令 ( )。
A: MOVX 40H,A
B: MOV R6,
C: 40HMOV @R6,A
D: MOV R0,
E: 40HMOVX @R0,A
F: MOV R6,
G: 40HMOVX @R6,A
A: MOVX 40H,A
B: MOV R6,
C: 40HMOV @R6,A
D: MOV R0,
E: 40HMOVX @R0,A
F: MOV R6,
G: 40HMOVX @R6,A
举一反三
- 已知(R0)=4BH,(A)=84H,片内RAM(4BH)=7FH,(40H)=20H,问执行序后,MOV A,@R0MOV @R0,40HMOV 40H,AMOV R0,#35H结果:(R0)= 、(A)= ,4BH= 、40H=
- 假设(30H)=60H,(60H)=55H,则执行下列指令后,(A)=H,MOV R0,30HMOV A,@R0
- 执行如下三条指令后,30H单元的内容是( ) MOV R1,#30H MOV 40H,#0EH MOV @R1,40H
- 执行如下三条指令①MOV R1,#30H ② MOV 40H,#0EH③MOV @R1,40H后,30H单元的内容是:
- 已知(10H)=5AH,(2EH)=1FH, (40H)=2EH,(60H)=3DH<br/>执行下列程序段后:MOV 20H,60H MOV R1,20H MOV A,40H XCH A,R1 XCH A,60H XCH A,@R1 MOV R0,#10H XCHD A,@R0 (A)=______ ,(10H)=______ ,(2EH)=______ ,(40H)=______ ,(60H)=______