Electronics and Communication Engineering - Digital Electronics
Exercise :: Digital Electronics - Section 16
1.
The logic operation that will selectively clear bits in register A in those positions where these are 1 's in the bits of register B is given by
A.
A ← A + B B.
A ← A B C.
A ← A + B D.
A ← AB
Answer: Option D
Explanation:
2.
The 2's complement representation of the decimal number -4 is
Answer: Option B
Explanation:
3.
The following program starts at location 0100H L X ISP, 00FF - the content if accumulator LXIH, 0701 - when the program counter MVI A, 20 H - reaches 0109 H is S ∪ BM
Answer: Option A
Explanation:
4.
In 8085 microprocessor, what is the length of PC (program counter)?
Answer: Option D
Explanation:
5.
In decimal system the base of radix is
Answer: Option C
Explanation: