List of top Electronics and Communication Engineering Questions on Microprocessors asked in TANCET

In 8085 microprocessor, unfortunately, two address lines namely A13 and A6 have become faulty and are stuck at logic 0. Which of the following address locations cannot be accessed in the memory?
It is desired to mask the higher order bits (D7-D4) of the data bytes in register C. consider the following set of 8085 instruction,
(i) MOV A, C
ANI FOH
MOV C, A
HLT
(ii) MOV A, C
MVI B, FOH
ANA B
MOV C, A
HLT
(iii) MOV A, C
MVI B, 0FH
ANA B
MOV C, A
HLT
(iv) MOV A, C
ANI 0FH
MOV C, A
HLT
The instruction XLAT in 8086 microprocessor is used to
For the given 8086 microprocessor instructions below, which is an invalid instruction?

Match the following: For 8086 microprocessor