Technical data

Working with the Target Language

2-2

Why Use the Target Language Compiler?

If you simply need to produce ANSI C code from a Simulink model, you do not

need to use the Target Language Compiler. If you need to customize the output

of Real-Time Workshop, the Target Language Compiler is the mechanism that

you would use. Some uses of the Target Language Compiler are:

• You need to change the way code is generated for a particular Simulink

block.

• You need to inline S-functions in your model.

• You need to modify the way code is generated in a global sense.

• You need to perform a large scale customization of the generated code.

For example, you need to output the code in a language other than C.

To produce customized output using the Target Language Compiler, you need

to understand the structure of the

model.rtw file and how to modify target files

to produce the desired output. This chapter first introduces the

model.rtw file

and then describes the target language directives and their associated

constructs. You will use the TLC directives and constructs to modify existing

target files or create new ones from scratch, depending on your needs. Chapter

3 explains the details of writing target files.