1. __________ converts the programs written in assembly language into machine instructions.
a) Machine compiler
b) Interpreter
c) Assembler
d) Converter
Explanation: An assembler is a software used to convert the programs into machine instructions.
2. The instructions like MOV or ADD are called as ______
a) OP-Code
b) Operators
c) Commands
d) None of the mentioned
Explanation: This OP – codes tell the system what operation to perform on the operands.
3. The purpose of the ORIGIN directive is __________
a) To indicate the starting position in memory, where the program block is to be stored
b) To indicate the starting of the computation code
c) To indicate the purpose of the code
d) To list the locations of all the registers used
Explanation: This does the function similar to the main statement.
4. Instructions which won’t appear in the object program are called as _____
a) Redundant instructions
b) Exceptions
c) Comments
d) Assembler Directives
Explanation: The directives help the program in getting compiled and hence won’t be there in the object code.
5. The directive used to perform initialization before the execution of the code is ______
a) Reserve
b) Store
c) Dataword
d) EQU
Explanation: Dataword
6. _____ directive is used to specify and assign the memory required for the block of code.
a) Allocate
b) Assign
c) Set
d) Reserve
Explanation: This instruction is used to allocate a block of memory and to store the object code of the program there.
7. _____ directive specifies the end of execution of a program.
a) End
b) Return
c) Stop
d) Terminate
Explanation: This instruction directive is used to terminate the program execution.
8. The last statement of the source program should be _______
a) Stop
b) Return
c) OP
d) End
Explanation: This enables the processor to load some other process.
9. The assembler stores the object code in ______
a) Main memory
b) Cache
c) RAM
d) Magnetic disk
Explanation: After compiling the object code, the assembler stores it in the magnetic disk and waits for further execution.
10. To overcome the problems of the assembler in dealing with branching code we use _____
a) Interpreter
b) Debugger
c) Op-Assembler
d) Two-pass assembler
Explanation: This creates entries into the symbol table first and then creates the object code.