Chapter 10 - Programming language translators

Front

What is the role of an assembler in programming language translation?

Back

An assembler translates assembly code into machine code or intermediate bytecode.

Front

What is the difference between source code and object code?

Back

Source code is the code written by the programmer in a high-level or assembly language, while object code is the machine code output produced after translation by a compiler or assembler.

Front

Which of the following best describes a compiler?

Back

Translates high-level language into machine code

Front

Before an assembly code program can be executed, it must be translated into the equivalent machine code, or an intermediate form called ________.

Back

bytecode

Front

The input to the assembler is called the ________ and the output (machine code) is the ________.

Back

source code, object code

Front

Describe the stages of compilation: lexical analysis, syntax analysis, code generation and optimisation.

Back

The stages of compilation are lexical analysis (breaking code into tokens), syntax analysis (parsing tokens into grammatical structure), code generation (producing machine code), and optimisation (improving code efficiency).

Front

What are the three main stages shown in the diagram?

Back

Input (Source code), Process (Compile), Output (Object code)

Front

What does an interpreter do when it encounters a syntax error in a program?

Back

It stops and reports the error without running the program.

Front

What error does the interpreter produce when this program runs?

Back

NameError: name 'n' is not defined

Front

What does the interpreter do when a syntax error, like a missing closing bracket, is present in a program?

Back

The interpreter scans through the whole program checking for certain types of error before executing any of it.