University:
Amherst College
Course:
COSC 111 | Introduction to Computer Science I
Academic year:

2023
Views:

488

Pages:

2
Author:

Hallie Randolph

Language Processor A language processor is a hardware device designed or used to perform tasks, such as processing program code to machine code. Language processors are found in languages such as FORTRAN and COBOL. Types of language processing: Assemblers: Language processors that map low-level language instructions into machine code, e.g. the ARM assembler. Compilers: Language processors that map high-level language instructions into machine code, e.g. Delphi, GCC, Visual C++ etc. Pre-processors: Language processors that map a superset of a high-level language into the original high-level language, or perform simple text substitutions before translation takes place. Interpreters: Language processors that include an execution component, i.e. they perform the operations specified in the source text, rather than re-expressing them in another language; e.g. Matlab. Disassemblers: Language processors that attempt to take object code at a low level and regenerate source code at a higher level. Language Processor Examples: · GCC, Delphi, Visual Studio · TeX/LaTeX · Postscript · HTML & Web browsers · XML How do we judge the quality of a language processor? · (Most important property): Correctness of the generated code · Conformity to the language specification; avoids temptations to implement a subset/superset of the language, which might result in a reduction of portability. · Quality of the generated code with respect to size and speed. · Speed of the language processor itself. · User-friendliness, as evident in its quality of error reporting.

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