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Revision as of 19:28, 21 September 2019 by Skalogryz (talk | contribs) (Using the compiler)


Compiling the compiler

Get the sources:

 git clone https://github.com/skalogryz/freepascal fpc-wasm

switch to correct branch:

 cd fpc-wasm
 git checkout webasm


 cd compiler

Using Lazarus

 open ppcwasm.lpi

hit the "compile" button.

Using command-line
 fpc -dnoopt -dwasm -Fiwasm -Fuwasm -Fusystems -S2 pp.pas 

the compiler can be renamed

 mv pp ppwasm

or, on windows:

 mv pp.exe ppwasm.exe

Using the compiler

You need a system.pas unit. It can be found here:


You'll also need the wasm tools:

wasm tools

Extract the binaries and put them somewhere in your path.


Wasm-demo (https://github.com/skalogryz/wasm-demo) is a Pascal WebAssembly demo project, ported Google's C WebAssembly example (https://codelabs.developers.google.com/codelabs/web-assembly-intro)

See Also