Question
Download Solution PDFIn 8085 microprocessor, initially the number decimal 8 is stored. If instruction RAL is executed twice on this number, the final number stored will be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:-
Accumulator: An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU.
RAL instruction: It stands for Rotate Accumulator left. It is an implicit Addressing mode having an opcode size of 1 byte.
Even if our accumulator is 8 bit, the RAL instruction is going to follow 9-bit rotation as it will include carry also.
Analysis:
8 → 0000 1000
After 1st RAL
0001 0000
After 2nd RAL
0010 0000
The decimal value is 32
Note: If the value of CY flag is not given then It is assumed to be zeroLast updated on May 30, 2025
-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website.
-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.
-> A total of 83 vacancies have been announced for the post of Technical Assistant.
-> The Selection process consists of a written test and a Skill test.
-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection.