Search found 968 matches

by nymus
Wed May 18, 2016 10:46 am
Forum: Programming Discussion
Topic: bug in strtof
Replies: 3
Views: 751

Re: bug in strtof

True, Bluecrab. I was also recently made to appreciate the deeper implications of float vs double. float has six digits of decimal precision which is what you see in that demonstration. Perhaps changing the array to "double" and using m4 instead of m4-single-only option at user level might...
by nymus
Tue Apr 05, 2016 11:12 pm
Forum: Programming Discussion
Topic: Wiki feedback
Replies: 102
Views: 75461

Re: Wiki feedback

From the very beginning I have been the desire to make some kind of Dreamcast history movie and this wiki would be useful.

Ours is quite the epic tale with plenty of drama with lots of interesting personalities, conflicts...
by nymus
Mon Apr 04, 2016 7:02 pm
Forum: Programming Discussion
Topic: Wiki feedback
Replies: 102
Views: 75461

Re: Wiki feedback

It's nice to know that a pioneer such as Marcus Comstedt is still reachable. Good Work btw.
by nymus
Wed Sep 09, 2015 10:22 am
Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
Topic: Happy 16th Birthday Dreamcast!
Replies: 5
Views: 2061

Happy 16th Birthday Dreamcast!

Thanks to Sega and the Dreamcast community for the fun times over the years. I've introduced Dreamcast to the children in our family and they enjoy Sonic Adventure, Wacky Races, Tennis 2K2, Rayman 2.... A few months ago I actually filmed them unboxing my sealed Sonic Adventure 2 10th Anniversary tha...
by nymus
Sat Oct 11, 2014 5:39 pm
Forum: Programming Discussion
Topic: 4kb Rotating Cube Demo
Replies: 43
Views: 4520

Re: 5k Rotating Cube Demo

Interesting topic. I have great respect for the pioneers of DC homebrew. KOS is certainly an amazing achievement and a credit to Dreamcast's legacy in spite of any rough edges it might possess. I certainly learned a lot from it and anyone who sees mistakes should take it as an opportunity to learn/p...
by nymus
Sat Oct 11, 2014 4:23 pm
Forum: Programming Discussion
Topic: 4kb Rotating Cube Demo
Replies: 43
Views: 4520

Re: 5k Rotating Cube Demo

I just felt the urge to chime in on the whole reverse engineering concept. Personally, I think the act itself generally goes against the wishes of a developer/manufacturer who did not publicly describe or document their product and is therefore wrong regardless of how one goes about it. The only val...
by nymus
Tue Sep 09, 2014 6:43 am
Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
Topic: Happy 15th Birthday Dreamcast!
Replies: 1
Views: 900

Happy 15th Birthday Dreamcast!

I'm glad you came into my life. I still enjoy gaming with you. May you have many more years of fun and homebrew development. You're place in gaming history is legendary.
by nymus
Tue Aug 12, 2014 4:42 am
Forum: Programming Discussion
Topic: Quake 3 lightmaps - PVR Multi-Texture
Replies: 106
Views: 22604

Re: Quake 3 lightmaps - PVR Multi-Texture

Thanks! Great work!
by nymus
Mon Mar 03, 2014 5:56 am
Forum: Programming Discussion
Topic: Shaders
Replies: 48
Views: 6163

What is a shader? technically speaking...

Considering that the OP is inquiring about shaders at the most basic level, perhaps it would be useful to consider the question at a fundamental level? I have little more than a basic theoretical understanding of shaders but from what I know, the actual shader language used in the high level APIs (O...
by nymus
Wed Jan 22, 2014 8:23 pm
Forum: Hardware Modification and Repair
Topic: Replacing the Internal Battery with a AAA Holder
Replies: 8
Views: 2378

Re: Replacing the Internal Battery with a AAA Holder

I soldered a li-2032 battery holder from an old PC motherboard and got a bunch of lir-2032s (recharageable l-2032) from ebay and it worked out quite nicely. I can easily replace a dead battery now. ;)
by nymus
Wed Aug 07, 2013 7:11 pm
Forum: Programming Discussion
Topic: Reading texture from PVR back into SH-4 RAM
Replies: 29
Views: 4848

Re: Reading texture from PVR back into SH-4 RAM

MisterDave... :kiss)

Dreamcast love is strong.
by nymus
Sun Sep 09, 2012 6:50 pm
Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
Topic: Happy Birthday DC!
Replies: 2
Views: 984

Happy Birthday DC!

You are still dear to my heart.
by nymus
Sun Feb 12, 2012 2:31 am
Forum: Off-Topic Forum
Topic: What's your specs?
Replies: 66
Views: 10332

Re: What's your specs?

The radeon 4850 is a good enough card even today. The ~5 or so games that would suffer with 4x anti-aliasing at 1080p barely seem to maintain a 10-15fps advantage on newer cards in the $150 price range (6850 etc according to most reviews online).
by nymus
Sat Dec 31, 2011 7:54 pm
Forum: Programming Discussion
Topic: KOS In Unix systems
Replies: 43
Views: 6396

Re: KOS In Unix systems

Hi, Bluecrab. I was just wondering about the dc-chain script failing due to missing dependencies during the configure phase. Would it be better to configure all the tools first and report the missing dependencies? I've rebuilt the toolchain a couple of times after reinstalling linux and found myself...
by nymus
Fri Dec 30, 2011 9:09 pm
Forum: Programming Discussion
Topic: LibS3MPlay v.1.0
Replies: 12
Views: 1747

Re: LibS3MPlay v.1.0

I think expectations for the dreamcast audio subsystem are sometimes too high just because it is programmable. There are many systems e.g. the Gameboy Advance which are built on cache-less CPUs. Remember that the sound subsystem (AICA) by itself is intended to be like a dedicated sound card (not a c...
by nymus
Wed Nov 02, 2011 6:47 am
Forum: Programming Discussion
Topic: Help this spanish guy working on the bennu port to dreacmast
Replies: 17
Views: 2263

Re: Help this spanish guy working on the bennu port to dreacmast

I also doubt the problem is with kos because the fs stuff usually works or blows up at build time. The romdisk seems to be building because the compile completes without missing the "extern romdisk" and you've mentioned taking up space so... maybe... - case-sensitivity? - not using "/...
by nymus
Wed Nov 02, 2011 2:46 am
Forum: Programming Discussion
Topic: Help this spanish guy working on the bennu port to dreacmast
Replies: 17
Views: 2263

Re: Help this spanish guy working on the bennu port to dreacmast

Should it be fs_open/fs_close? (A lazy guess) To emulate a CD you need to make an iso or cdi image of your game/program's directory and instead of "/rd" use "/cd" in the fopen/fs_open function. I have not used the emulators so I do not know if you need to create your IP.BIN and 1...
by nymus
Fri Sep 09, 2011 9:33 am
Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
Topic: Happy 9/9
Replies: 3
Views: 1018

Re: Happy 9/9

Happy dreamcast 9/9 to all !
by nymus
Tue Mar 15, 2011 8:52 am
Forum: Programming Discussion
Topic: Drawing rgb565 image in output_buffer using PVR
Replies: 28
Views: 8988

Re: Drawing rgb565 image in output_buffer using PVR

^^^ wow! I'm amazed the image above loaded with vq still looks like the original from afar or through squinted eyes. It's like a visual confirmation of the compression level of the format! (eg distance from screen required to correctly form the original=compression?) Fascinating!