<br><br><div class="gmail_quote">On Mon, Feb 8, 2010 at 9:42 AM, Mariano Martinez Peck <span dir="ltr"><<a href="mailto:marianopeck@gmail.com">marianopeck@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>Hi folks. Disusing with a friend, he asked me if Squeak was completely written in itself (actually, SLANG). I think (I am not sure) that some parts of the VM as Interpreter, ObjectMemory, and most primitives are written in SLANG and then using VMMaker I can convert from that to C. Ok.....but...I think I heard that there are primitives that are directly written in C (not SLANG, no translation). Is this true ?<br>
</blockquote><div><br></div><div>If you look at the blue book and its definition of what Smalltalk-80 is then all of that except lower-level window management (creating the window in which Squeak appears, collecting events from the GUI), and image I/O (reading and writing the image to and from the snapshot file) is entirely written in Slang and can be run as a simulation. But go beyond that to the large array of primitives for sound, video and so on and lots of the Slang code for the primitives is merely a wrapper around some library that actually implements the functionality.</div>
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<br>If true, how can be that addressed ? where is the C code of that? because, I take VMMaker, I convert to C, then compile, install and I have a working VM. So...that C code must come somewhere...where is it ? how can I know if a primitive is written in SLANG or directly in C?<br>
</blockquote><div><br></div><div>As far as I'm aware all primitives are written in Slang, even if they're simply wrappers. But if you look in the files in </div><div> platforms/{Cross,Mac OS,unix}/plugins/FooPlugin</div>
<div>you'll find cross-platform and platform-specific support code for each plugin (a plugin being a related suite of primitives), and look in the src tree for plugins and extplugins and look in their subdirectries you'll find all the generated Slang plugin code.</div>
<div><br></div><div>A better place to look is in VMMaker using the browser. There you'll see different kinds of primitive from things like GeniePlugin where all the code is written in Slang to SocketPlugin where all the code is merely wrappers around platform-specific support code.</div>
<div><br></div><div>HTH</div><div>Eliot</div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>I hope someone can help this newbie :)<br><br>Thanks in advance,<br><br>Mariano<br><br><br>
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