<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi Kevin,<br></div><div><br>On Jun 22, 2017, at 6:12 AM, Kevin Driedger <<a href="mailto:notifications@github.com">notifications@github.com</a>> wrote:<br><br></div><blockquote type="cite"><div><p>Do you, <a href="https://github.com/eliotmiranda" class="user-mention">@eliotmiranda</a> , generate most of this code using VMMaker? Seems like the same change many times.</p></div></blockquote><div><br></div>Yes (& not just me). The compilable source of the vm is made up of three components:<div><br></div><div>- the platform source, maintained by hand, written mostly in C, with some Objective-C and C++, provides the platform-specific support to allow the vm to run on real machines.</div><div><br></div><div>- the interpreter and JIT provide the execution engine, core language primitives and memory manager to execute Smalltalk (& Newspeak)</div><div><br></div><div>- the plugins (src/plugins) provide a wide variety of extensions to the vm (from FFI to OpenGL to (de)compresssion</div><div><br></div><div>The plugins, at least their surface primitives, and sometimes their algorithmic innards too, are written in Smalltalk</div><div><br></div><div>The vm itself is entirely written (& developed) in Smalltalk (actually a subset of Smalltalk called Slang).</div><div><br></div><div>These last two sets of sources are therefore translated automatically from Smalltalk/Slang to C. Whenever someone makes a change to the VMMaker.oscog package that necessitates new sources because by generated that person generates source and commits to opensmalltalk/vm. Since there are a variety of VMs:</div><div> <span style="background-color: rgba(255, 255, 255, 0);">(smalltalk vs newspeak)</span></div><div> * (interpreter vs cointerpreter+jit)</div><div> * (32 vs 64 bits)</div><div> * (V3 vs Spur object representations)</div><div> * (standard vs Sista vs Lowcode <span style="background-color: rgba(255, 255, 255, 0);">instruction sets)</span></div><div><span style="background-color: rgba(255, 255, 255, 0);">a number of similar files are generated.</span></div><div><br></div><div><br></div><div>Cheers,</div><div>Eliot</div><div><blockquote type="cite">
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