1
GATE EE 2007
MCQ (Single Correct Answer)
+2
-0.6
The associated figure shows the two types of rotate right instruction $${R_1},\,{R_2}$$ available in a microprocessor where Register is a $$8$$-bit register and $$C$$ is the carry bit. The rotate left instructions $$L1$$ and $$L2$$ are similar except that $$C$$ now links the most significant bit of Register instead of the least significant one. GATE EE 2007 Digital Electronics - Microprocessor Question 11 English

Suppose Register contains the $$2's$$ complement number $$11010110.$$ If this number is delivered by $$2$$ the answer should be

A
$$01101011$$
B
$$10010101$$
C
$$11101001$$
D
$$11101011$$
2
GATE EE 2007
MCQ (Single Correct Answer)
+2
-0.6
The associated figure shows the two types of rotate right instruction $${R_1},\,{R_2}$$ available in a microprocessor where Register is a $$8$$-bit register and $$C$$ is the carry bit. The rotate left instructions $$L1$$ and $$L2$$ are similar except that $$C$$ now links the most significant bit of Register instead of the least significant one. GATE EE 2007 Digital Electronics - Microprocessor Question 10 English

Such a division can be correctly performed by the following set of operations

A
$$L2,R2,R1$$
B
$$L2, R1, R2$$
C
$$R2, L1, R1$$
D
$$R1, L2, R2$$
3
GATE EE 2006
MCQ (Single Correct Answer)
+2
-0.6
A software delay subroutine is written as given below: GATE EE 2006 Digital Electronics - Microprocessor Question 14 English

How many times $$DCR$$ $$L$$ instruction will be executed?

A
$$255$$
B
$$510$$
C
$$65025$$
D
$$65279$$
4
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
The $$8085$$ assembly language instruction that stores the content of $$H$$ and $$L$$ registers into the memory locations $$2050H$$ and $$2051H,$$ respectively, is
A
$$SPHL$$ $$2050H$$
B
$$SPHL$$ $$2051H$$
C
$$SHLD\,\,2050H$$
D
$$STAX\,\,2050H$$
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