DOS ain't dead

AdvanceComp 1.15 -- rebuilt with newer compiler (Users)

posted by Rugxulo , Usono, 21.03.2013, 18:03

> > > I found AdvanceComp 1.16 beta here:
> > > http://advancemame.sourceforge.net/beta/
> > > which is the latest version for DOS I can find. It doesn't improve on
> > > speed or compression.

I noticed 1.16 final was released earlier this month. I've mirrored that to iBiblio, but his website says he still uses (old) GCC 3.2.3 cross-compiler (2003 ftw!).

In other words, I haven't rebuilt it with newer DJGPP yet, but it shouldn't be hard. Suggestions for me for -mtune -march anyone??

> I replaced whole 7-zip with Google's Zopfli DEFLATE-compatible library, and
> compiled with DJGPP gcc/g++ 4.7.2 (general -O2 build)
> http://encode.ru/threads/1691-AdvanceCOMP-with-new-7-zip?p=32687#post32687

Does this really help much? Is it worth it? What about comparisons to Kzip or Deflopt? A few example stats would be greatly appreciated. (Or maybe I should just try it myself, ugh.) I'm just slightly skeptical that it will improve much over 7-Zip's Deflate. I mean, if we really wanted better compression, getting an extra few kilobytes from Deflate isn't the right approach, better would be to use a different method (Bzip2? LZMA?) or archiver or ....

And yes, I know, in rare cases AdvanceZip can chomp off a fairly big chunk, e.g. FPC's .ZIP, lemme try old 1.15 on latest 2.6.2 full ... okay, it saved very very little. Lemme try after unpacking the main .ZIP and trying on all the little .ZIPs separately ... saved almost 3.5 MB! Now testing full's .ZIPs with new 1.16 ... saved only the same amount.

BTW, GCC 4.8.0 is almost finalized, probably next week (and Andris made a RC1 build via DJGPP 2.04 here). Not totally sure if it will improve much, but it should be interesting (if you care to benchmark).

Complete thread:

• p7zip 9.20.1 - Rugxulo, 20.08.2012, 22:46 (Users)
  • p7zip 9.20.1 - mvojvodic, 21.08.2012, 22:43
    • p7zip 9.20.1b "testing" - Rugxulo, 23.08.2012, 00:16
      • p7zip 9.20.1b "testing" - Zyzzle, 24.08.2012, 22:02
        • p7zip 9.20.1b "testing" - Rugxulo, 25.08.2012, 00:04
          • p7zip 9.20.1b "testing" - Zyzzle, 25.08.2012, 00:59
            • p7zip 9.20.1b "testing" - Rugxulo, 25.08.2012, 01:58
              • p7zip 9.20.1b "testing" - Zyzzle, 26.08.2012, 04:09
                • p7zip 9.20.1b "testing" - Rugxulo, 26.08.2012, 04:59
                • p7zip 9.20.1b "testing" - Rugxulo, 31.08.2012, 23:05
                  • p7zip 9.20.1b "testing" - Rugxulo, 02.09.2012, 22:27
                    • p7zip 9.20.1b "testing" - Zyzzle, 04.09.2012, 23:59
                      • p7zip 9.20.1b "testing" - Rugxulo, 05.09.2012, 02:12
                        • p7zip 9.20.1b "testing" - Khusraw, 05.09.2012, 10:30
                    • p7zip 9.20.1b "testing" - Rugxulo, 06.09.2012, 23:21
                      • p7zip 9.20.1b "testing" - favero, 21.09.2012, 20:04
                        • p7zip 9.20.1b "testing" - Rugxulo, 22.09.2012, 06:16
                          • p7zip 9.20.1b "testing" - Khusraw, 23.09.2012, 19:44
                            • 7ZA 9.20 rebuilt by Khusraw - Rugxulo, 11.10.2012, 21:56
                              • 7ZA 9.20 rebuilt by Khusraw - Khusraw, 12.10.2012, 16:30
                                • 7ZA 9.20 rebuilt by Khusraw - Rugxulo, 13.10.2012, 05:35
                                  • 7ZA 9.20 rebuilt by Khusraw - Khusraw, 13.10.2012, 09:06
            • AdvanceComp 1.15 -- rebuilt with newer compiler - Rugxulo, 25.08.2012, 02:33
              • AdvanceComp 1.15 -- rebuilt with newer compiler - roytam, 20.03.2013, 07:58
                • AdvanceComp 1.15 -- rebuilt with newer compiler - Rugxulo, 21.03.2013, 18:03
                  • AdvanceComp 1.15 -- rebuilt with newer compiler - roytam, 22.03.2013, 01:03
                    • GCC 4.8.0 (DJGPP 2.04 only) - Rugxulo, 28.03.2013, 00:24