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Assembly Language PTR Operator Quiz

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Questions and Answers

What is the purpose of the PTR operator in assembly language?

To define comments within the code

To perform arithmetic operations

To specify the size of the data being accessed (correct)

To indicate the start of a new instruction

Which characters are allowed in assembly language identifiers?

Alphabetic letters, digits, special characters: #, !

Alphabetic letters, digits, special characters: *, +, =

Alphabetic letters, digits, special characters: &, %, ^

Alphabetic letters, digits, special characters: $, @ (avoided) (correct)

What does the statement 'DB 14 23' indicate in assembly language syntax?

It performs a conditional jump based on values 14 and 23

It specifies a delay loop with counts 14 and 23

It initializes a register with values 14 and 23

It defines byte data with values 14 and 23 (correct)

What type of information do predefined symbols like @data and @model provide in assembly language?

<p>Information returned to the program during assembly</p> Signup and view all the answers

What is the role of the assembler in translating assembly language statements?

<p>To translate operation statements into machine code</p> Signup and view all the answers

Study Notes

Assembly Language Concepts

The PTR operator in assembly language is used to specify the size of the memory location being referenced.

Identifiers in Assembly Language

In assembly language, identifiers can contain letters (a-z or A-Z), digits (0-9), and special characters (? and _).

Data Definition in Assembly Language

The statement 'DB 14 23' in assembly language syntax indicates defining a byte (DB) with initial values 14 and 23.

Predefined Symbols in Assembly Language

Predefined symbols like @data and @model in assembly language provide information about the location counter, segment, and memory model.

Role of Assembler

The assembler plays a crucial role in translating assembly language statements into machine code, which can be executed directly by the computer.

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Description

Test your knowledge on using the PTR (pointer) operator in assembly language with this quiz. Understand how to manipulate data using PTR and learn the syntax of assembly language.