(A)=55H,(R0)=AAH执行ANLA,R0指令后,(A)=()
A: 00H
B: 5AH
C: A5H
D: FFH
A: 00H
B: 5AH
C: A5H
D: FFH
举一反三
- 假设(30H)=60H,(60H)=55H,则执行下列指令后,(A)=H,MOV R0,30HMOV A,@R0
- 指令 MOV R0,20H 执行前 (R0)=30H, (20H)=38H,执行后(R0)=?
- 指令MOVR0,#20H执行前(R)=30H,(20H)=38H,执行后() A: (R0)=00H B: (R0)=20H C: (R0)=30H D: (R0)=38H
- 已知(A)= F0H,(R0)=30H,(30H)=AAH。执行完指令XCH A, @R0后,累加器A的内容将变为 A: AAH B: F0H C: 30H D: FFH
- 【填空题】若(R0)=10H,(10H)=1EH,(A)=29H,执行完“XCHD A,@R0”指令后,则(A)=()H,(10H)=()H