Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Pick the functions which are completely perfo...
Start Learning for Free
Pick the functions which are completely performed in pass 1
- a)Updating the location counter
- b)Processing of EQU pseudo op
- c)Processing of DS pseudo op
- d)Ail of the above
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Pick the functions which are completely performed in pass 1a)Updating ...
Operation performed during pass-1 in 2-pass compiler:
1. Processing the DB pseudo-op.
2. Updating the location counter.
3. Processing of EQU pseudo-op.
4. Processing of DS pseudo-op.
1. Processing the DB pseudo-op.
2. Updating the location counter.
3. Processing of EQU pseudo-op.
4. Processing of DS pseudo-op.
Most Upvoted Answer
Pick the functions which are completely performed in pass 1a)Updating ...
Explanation:
In pass 1 of the assembler, the assembler scans the source program line by line and performs various tasks. Pass 1 has two sub-phases: 1a and 1b. In pass 1a, the assembler performs preliminary tasks that do not require the complete symbol table.
Updating the location counter:
During pass 1a, the assembler updates the location counter as it reads each line of the source program. The location counter keeps track of the current memory location being assigned to the instructions and data in the program. The assembler increments the location counter based on the size of the instructions or data being processed.
Processing of EQU pseudo op:
The EQU pseudo op is used to define symbolic constants in the assembly language program. During pass 1a, the assembler processes the EQU pseudo op and evaluates the expression on the right-hand side of the EQU statement. It assigns the value of the expression to the symbolic constant and adds it to the symbol table. This allows the assembler to resolve the value of the symbolic constant during pass 1b.
Processing of DS pseudo op:
The DS pseudo op is used to reserve memory space for data in the assembly language program. During pass 1a, the assembler processes the DS pseudo op and increments the location counter by the specified size of the data being reserved. This ensures that the correct memory locations are assigned to the data during pass 1b.
Conclusion:
In pass 1a of the assembler, the location counter is updated, and the EQU and DS pseudo ops are processed. These tasks are completely performed in pass 1a, without requiring the complete symbol table. Therefore, the correct answer is option 'D' - All of the above.
In pass 1 of the assembler, the assembler scans the source program line by line and performs various tasks. Pass 1 has two sub-phases: 1a and 1b. In pass 1a, the assembler performs preliminary tasks that do not require the complete symbol table.
Updating the location counter:
During pass 1a, the assembler updates the location counter as it reads each line of the source program. The location counter keeps track of the current memory location being assigned to the instructions and data in the program. The assembler increments the location counter based on the size of the instructions or data being processed.
Processing of EQU pseudo op:
The EQU pseudo op is used to define symbolic constants in the assembly language program. During pass 1a, the assembler processes the EQU pseudo op and evaluates the expression on the right-hand side of the EQU statement. It assigns the value of the expression to the symbolic constant and adds it to the symbol table. This allows the assembler to resolve the value of the symbolic constant during pass 1b.
Processing of DS pseudo op:
The DS pseudo op is used to reserve memory space for data in the assembly language program. During pass 1a, the assembler processes the DS pseudo op and increments the location counter by the specified size of the data being reserved. This ensures that the correct memory locations are assigned to the data during pass 1b.
Conclusion:
In pass 1a of the assembler, the location counter is updated, and the EQU and DS pseudo ops are processed. These tasks are completely performed in pass 1a, without requiring the complete symbol table. Therefore, the correct answer is option 'D' - All of the above.
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Top Courses for Computer Science Engineering (CSE)View all
Top Courses for Computer Science Engineering (CSE)
Question Description
Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Pick the functions which are completely performed in pass 1a)Updating the location counterb)Processing of EQU pseudo opc)Processing of DS pseudo opd)Ail of the aboveCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Signup to solve all Doubts
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup