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- Question
In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with
Options- A. recognition of basic syntactic constructs through reductions
- B. recognition of basic elements and creation of uniform symbols
- C. creation of more optional matrix
- D. use of macro processor to produce more optimal assembly code
- Correct Answer
- recognition of basic elements and creation of uniform symbols
- 1. The system/370 assembler language
Options- A. is a term that refers to the control programs of an operating system
- B. is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
- C. allows multiple programs to reside in separate areas of core at the same time
- D. allows the programmer to write base registers and displacements explicitly in the source program Discuss
- 2. Which of the following might be used to convert high-level language instructions into machine language?
Options- A. system software
- B. applications software
- C. an operating environment
- D. an interpreter Discuss
- 3. If special forms are needed for printing the output, the programmer specifies these forms through
Options- A. JCL
- B. IPL
- C. Utility programs
- D. Load modules Discuss
- 4. Convert the ASLA assembly language instructions into hexadecimal machine language:
Options- A. 0111EF
- B. 9001E6
- C. DA000F
- D. 40 Discuss
- 5. Terminal Table
Options- A. a permanent table which lists all key words and special symbols of the language in symbolic form
- B. a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
- C. consists of a full or partial list of the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
- D. contains all constants in the program Discuss
- 6. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register?
Options- A. absolute mode
- B. indirect mode
- C. immediate mode
- D. index mode Discuss
- 7. Convert the .WORD d#790 assemblylanguage pseudo-ops into hexadecimal machine language:
Options- A. 0111EF
- B. 03 16
- C. F8
- D. 42 65 61 72 Discuss
- 8. Multiprogramming was made possible by
Options- A. input/output units that operate independently of the CPU
- B. operating systems
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 9. Convert the BRNE h#01E6, i assembly language instructions into hexadecimal machine language:
Options- A. 0111EF
- B. 9001E6
- C. DA000F
- D. 40 Discuss
- 10. A self-relocating program is one which
Options- A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation
- B. consists of a program and relevant information for its relocation
- C. can itself perform the relocation of its address-sensitive portions
- D. All of the above Discuss
Language Processors problems
Search Results
Correct Answer: allows the programmer to write base registers and displacements explicitly in the source program
Correct Answer: an interpreter
Correct Answer: JCL
Correct Answer: 40
Correct Answer: a permanent table which lists all key words and special symbols of the language in symbolic form
Correct Answer: index mode
Correct Answer: 03 16
Correct Answer: both (a) and (b)
Correct Answer: 9001E6
Correct Answer: can itself perform the relocation of its address-sensitive portions
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