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Was just released: http://fabiensanglard.net/gebb...

http://fabiensanglard.net/quakeSource/index.php and http://fabiensanglard.net/quake2/index.php as hinted by the summary.

http://fabiensanglard.net/quakeSource/index.php and http://fabiensanglard.net/quake2/index.php as hinted by the summary.

From http://fd.fabiensanglard.net/doom3/pdfs/johnc-plan_1999.pdf "The interpreted code has two prime benefits: portability and security." He also discusses the VM in http://fd.fabiensanglard.net/doom3/pdfs/johnc-plan_1998.pdf "With significant chunks of code now running on the client side, if we stuck with binary dll's then the less popular system would find that they could not connect to the new servers because the mode code hadn't been ported" The documents are interesting, if you get the some time for reading I recommend you check them out.

From http://fd.fabiensanglard.net/doom3/pdfs/johnc-plan_1999.pdf "The interpreted code has two prime benefits: portability and security." He also discusses the VM in http://fd.fabiensanglard.net/doom3/pdfs/johnc-plan_1998.pdf "With significant chunks of code now running on the client side, if we stuck with binary dll's then the less popular system would find that they could not connect to the new servers because the mode code hadn't been ported" The documents are interesting, if you get the some time for reading I recommend you check them out.

RTFA:
http://fabiensanglard.net/quake3/qvm.php

The third striking thing where he he discovered "circular buffers" but calls them "Array index cycling." Are programmers really that clueless that they don't realize MOD N can be optimized with AND N-1 ??

http://fabiensanglard.net/quakeSource/quakeSourceNetWork.php
arrayIndex = (oldArrayIndex+1) % 64 ;
arrayIndex = (oldArrayIndex+1) & UPDATE_MASK;

Which came from:
Network Model (Part 3 of 5)
The array cycle with the famous binary mask trick I mentioned in Quake World Network (Some elegant things).

... the article and I found it interesting. But it would be more interesting if the code was open source and could see all these changes with our eyes, just for educational purposes. A nice article that I came across lately just review the code of Doom which ported to iPhone by iD.

... the article about porting the game and I found it interesting. It would be better, though, to be open source and would be able to compare the changes in the code, just for educational purposes. Recently I came across with a rather interesting article describing the process of porting the open source code of Doom to iPhone.