155 lines
5.2 KiB
HTML
155 lines
5.2 KiB
HTML
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<title>doc/book/building/alternatives</title>
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<p><span class="h1">Building Alternative Systems</span>
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<br/><br/>
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In addition to the C implementation, there are a few other
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interfaces that can be built.
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<br/><br/>
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<span class="h2">Requirements</span>
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<br/><br/>
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• c compiler (tested: clang, tcc, gcc)<br/>
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• make<br/>
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• standard unix shell<br/>
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<br/><br/>
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<span class="h2">retro-repl</span>
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<br/><br/>
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A basic interactive system can be built by using:
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<br/><br/>
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<tt class='indentedcode'>make bin/retro-repl</tt>
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<br/><br/>
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This requires a copy of <span class="tt">ngaImage</span> to be in the current
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directory.
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<br/><br/>
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<span class="h2">Barebones</span>
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<br/><br/>
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This is a minimal version of the <span class="tt">retro-repl</span>. It keeps the C
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portion as short as possible, making it a useful starting point
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for new interfaces.
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<br/><br/>
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To build:
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<br/><br/>
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<tt class='indentedcode'>make bin/retro-barebones</tt>
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<br/><br/>
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<span class="h2">retro-compiler</span>
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<br/><br/>
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This is a turnkey compiler. It can compile a new executable
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bundling a Retro VM and image.
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<br/><br/>
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Requirements:
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<br/><br/>
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• BSD or Linux<br/>
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• objcopy in $PATH<br/>
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<br/><br/>
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To build:
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<br/><br/>
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<tt class='indentedcode'>make bin/retro-compiler</tt>
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<br/><br/>
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Example use:
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<br/><br/>
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1. Given a source file like "Hello.forth":
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<br/><br/>
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<tt class='indentedcode'>~~~</tt>
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<tt class='indentedcode'>:hello 'hello_world! s:put nl ;</tt>
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<tt class='indentedcode'>~~~</tt>
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<br/><br/>
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2. Use:
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<br/><br/>
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<tt class='indentedcode'>./bin/retro-compiler Hello.forth hello</tt>
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<br/><br/>
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The first argument is the source file, the second is the
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word to run on startup.
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<br/><br/>
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3. Run the generated <span class="tt">a.out</span>
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<br/><br/>
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Limits:
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<br/><br/>
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This only supports the core words ('all' interface) and the
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file i/o words. Support for other I/O extensions will be
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added in the future.
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<br/><br/>
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<span class="h2">Pascal</span>
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<br/><br/>
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There is a Pascal version of <span class="tt">retro-repl</span>.
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<br/><br/>
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Dependencies:
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<br/><br/>
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• freepascal<br/>
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<br/><br/>
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Building:
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<br/><br/>
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<tt class='indentedcode'>cd vm/nga-pascal</tt>
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<tt class='indentedcode'>fpc listener.lpr</tt>
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<br/><br/>
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This will require a copy of the <span class="tt">ngaImage</span> in the
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current directory.
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<br/><br/>
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<span class="h2">Python: retro.py</span>
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<br/><br/>
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This is an implementation of <span class="tt">retro-repl</span> in Python. As
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with <span class="tt">retro-repl</span> it requires the <span class="tt">ngaImage</span> in the current
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directory when starting.
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<br/><br/>
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<span class="h2">C#: retro.cs</span>
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<br/><br/>
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This is an implementation of <span class="tt">retro-repl</span> in C#. As with
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<span class="tt">retro-repl</span> it requires the <span class="tt">ngaImage</span> in the current
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directory when starting.
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<br/><br/>
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Building:
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<br/><br/>
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<tt class='indentedcode'>cd vm\nga-csharp</tt>
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<tt class='indentedcode'>csc retro.cs</tt>
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<br/><br/>
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You'll need to make sure your path has the CSC.EXE in it,
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or provide a full path to it. Something like this should
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reveal the path to use:
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<br/><br/>
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<tt class='indentedcode'>dir /s %WINDIR%\CSC.EXE</tt>
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<br/><br/>
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I've only tested building this using Microsoft's .NET tools.
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It should also build and run under Mono.
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</p>
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</body></html>
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