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.. _INT:Overview:
Overview
########
`GHDL` is architectured like a traditionnal compiler. It has:
* a driver (sources in :file:`src/ghdldrv`) to call the programs (compiler, assembler, linker) if needed.
* a library (sources in :file:`src/grt`) to help execution at run-time.
* a front-end (sources in :file:`src/vhdl`) to parse and analyse VHDL.
* a back-end (in fact many, sources are in :file:`src/ortho`) to generate code.
The architecture is modular. For example, it is possible to use the front-end in the `libghdl` library for the language server or to do synthesis (sources in :file:`src/synth`) instead of code generation.
The main work is performed by the front-end, which is documented in the next chapter.
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