http://www.lxdream.org/news/archives/113 lxdream news and updates Tue, 22 Jun 2010 15:26:49 -0700 http://wordpress.org/?v=2.8.5 hourly 1 http://www.lxdream.org/news/archives/113/comment-page-1#comment-211 Gondos Mon, 19 Jan 2009 21:27:38 +0000 http://www.lxdream.org/news/?p=113#comment-211 Hi Nathan, Good to see some steady progress on your project, I know it's hard to keep focused; I sadly gave up working on the DC emulator I was toying with. If you want some tips for your dynrec, I came up with a 1-pass DRC that gave pretty decent code. Given the instruction set of the SH4, constant propagation is a great addition (and not too difficult to add) to the register allocator and can really reduce the size of the generated code (even further if you consider "MOV.x @(disp, PC), Rn" instructions to be generating constants). Also lazy flushing the T bit can virtually remove the need for setx operations in a basic block and allows for some sweet "cmp reg1,reg2/jx" combos (especially if you allow your basic blocks to continue through branches not taken). Well, that was just my 2 cents; I'm sure you already have nice plans for your dynamic recompiler :) Keep up the good work, Gondos Hi Nathan,
Good to see some steady progress on your project, I know it’s hard to keep focused; I sadly gave up working on the DC emulator I was toying with.
If you want some tips for your dynrec, I came up with a 1-pass DRC that gave pretty decent code. Given the instruction set of the SH4, constant propagation is a great addition (and not too difficult to add) to the register allocator and can really reduce the size of the generated code (even further if you consider “MOV.x @(disp, PC), Rn” instructions to be generating constants). Also lazy flushing the T bit can virtually remove the need for setx operations in a basic block and allows for some sweet “cmp reg1,reg2/jx” combos (especially if you allow your basic blocks to continue through branches not taken).
Well, that was just my 2 cents; I’m sure you already have nice plans for your dynamic recompiler
Keep up the good work,
Gondos

]]> http://www.lxdream.org/news/archives/113/comment-page-1#comment-209 Lahr Fri, 16 Jan 2009 14:32:03 +0000 http://www.lxdream.org/news/?p=113#comment-209 Awesome. You can NEVER go wrong with a performance update. Awesome. You can NEVER go wrong with a performance update.

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