Unit 3: System Software_Assembler

A System Software that accepts assembly language program as input and produces its equivalent machine language program as output is called ____________.

• Compiler

• Translator

• Assembler

• all

The instructions present in the source program used to instruct the assembler to perform certain actions during the translation of a program are called____________ .

• Assembler directives

• Compiler Directives

• Preprocessor Directive

• all

The assembler directive simply equates a symbolic name to a numeric value is called ______________.

• EQU

• ORG

• DS

• All

A reference of a label, which is defined later in the program is called ___________.

• Forward Reference

• Backward Reference

• Middle reference

• all

Each reading of a program can be called a

• Pass

• Gate

• Phase

• all

A data structure used for maintaining the details (attributes) about the instructions of instruction set of any machine is called .

• Mnemonic Table

• Pseudo Instruction Table

• Literal Table

• All

The table maintains the details of the Pseudo instructions or assembler directive is called .

• Pseudo Instruction Table

• Literal Table

• SymbolTable

• ALL

The phase which scans the assembly language program completely and analyses the same can be also called as_____________.

• Analysis phase

• Synthesis Phase

• IR

• all

The assembler uses the_________, ______________for the pass1.

• Location counter, mnemonics table

• Location counter, Literal Table

• Location counter, Pseudo Instruction Table

• aLL