Hi Tom, > the whole point is that in a shared programming effort (as the freedos > kernel still should be) it's a waste of resources to change ANYTHING > without a certain payback.
Lucho's payback is clear. He compiles with Borland C and compresses the result, so that the *compressed* kernel fits in 40K. Not the uncompressed usage matters but the compressed; as far as I understood, he has exactly 40K left on his ROM for kernel.sys. Anyway, for those not watching freedos-cvs, he removed the breaks and put in some other optimizations now. > in this case, removing 'break;' may have saved 5 bytes in the early > 90ties, but is irrelevant (or even contraproductive) with optimizing > compilers, and leads only to such irrelevant 'why was this changed' > threads. For Turbo: 6 bytes (2x jmp near). With Watcom and the #pragma aux return_user aborts (so the compiler knows it can use jmp and not call) no difference at all. Bart ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Freedos-kernel mailing list Freedos-kernel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-kernel
