Search found 7389 matches
- Fri May 10, 2024 10:37 pm
- Forum: Programming Discussion
- Topic: CDDA Won't Loop Last Track on GDEMU/MODE
- Replies: 13
- Views: 1106
Re: CDDA Won't Loop Last Track on GDEMU/MODE
You won't be able to just replace the existing KOS CD driver with it due to hardware/KOS issues. The main problem is that you can't access the BIOS font during disc DMA (this is what the font mutex syscalls are for), and KOS assumes the font is always available for access. You can't fix this withou...
- Sat May 04, 2024 1:39 pm
- Forum: Programming Discussion
- Topic: Some minor Framebuffer tricks
- Replies: 0
- Views: 113
Some minor Framebuffer tricks
Wanted to share some small experimenting I did following the redesign of framebuffer multibuffering in KOS: https://gitlab.completext.com/Dreamcast/framebuffer-tricks The project just gives some simple examples of how to directly access video registers to produce some screen effects. The principles ...
- Wed Feb 28, 2024 9:09 pm
- Forum: Programming Discussion
- Topic: CDDA Won't Loop Last Track on GDEMU/MODE
- Replies: 13
- Views: 1106
Re: CDDA Won't Loop Last Track on GDEMU/MODE
You won't be able to just replace the existing KOS CD driver with it due to hardware/KOS issues. The main problem is that you can't access the BIOS font during disc DMA (this is what the font mutex syscalls are for), and KOS assumes the font is always available for access. You can't fix this withou...
- Wed Feb 14, 2024 12:15 pm
- Forum: Programming Discussion
- Topic: Crowdfunding the improvement of the gcc SH backend
- Replies: 19
- Views: 1152
Re: Crowdfunding the improvement of the gcc SH backend
Thank you for the well cited and thorough information. I would certainly be willing to personally contribute to such a fund, and think some of the other diehards would too here and in some of the other (less dev focused) Dreamcast communities. What may be worthwhile would also be to reach out to any...
- Tue May 23, 2023 9:31 am
- Forum: Programming Discussion
- Topic: Dreamcast at FCSC 2021
- Replies: 0
- Views: 961
Dreamcast at FCSC 2021
Another convention using a Dreamcast sample for a reverse engineering challenge. It provides some basics on reverse engineering on the Dreamcast, unfortunately without the original binaries used. Perhaps someone can find it around? It looks like they used a modified 2ndmix (again) but this time adde...
- Mon May 15, 2023 7:25 am
- Forum: Programming Discussion
- Topic: Dreamcast at NSEC2020
- Replies: 0
- Views: 959
Dreamcast at NSEC2020
While this might be more at home in the Games/Software Hacking forum, that seems mostly dedicated to commercial things. It seems for a hacking/reverse engineering challenge a few years ago someone built some Dreamcast demos using KOS. Not sure if this was people known to the community or they'd just...
- Tue Dec 14, 2021 5:04 am
- Forum: Programming Discussion
- Topic: Race condition in KOS timer_??_gettime*
- Replies: 10
- Views: 1811
Re: Race condition in KOS timer_??_gettime*
I agree with BlueCrab's guess that the naming of timer_ms_counter is just due to it being a counter for the timer_ms_* functions. Something like 'timer_ms_secs' might have made sense too, but I think the core notion was to separate it from the other functions in timer.c. Your changes make sense when...
- Sun Sep 06, 2020 2:31 pm
- Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
- Topic: Replacement hardware for the Katana devkit
- Replies: 10
- Views: 4894
Re: Replacement hardware for the Katana devkit
I'm working on trying to set my dev box and GD Writer up again for the first time in years and figured I'd report some of my details. I'm trying to connect this to a Windows 2008 SP2 (32bit, not R2) workstation. I have a number of scsi cards connected for other devices and wanted to test a Tekram DC...
- Tue Jun 30, 2020 10:26 pm
- Forum: Off-Topic Forum
- Topic: What does everyone do for work?
- Replies: 40
- Views: 185827
Re: What does everyone do for work?
What kind of stuff do you write? I like religion... just can't seem to find the time or motivation to prioritise studying. My study was primarily in Abrahamic Mysticism (Hekhalot/Merkabah/Kabbalah in Judaism, various Monastic practices in Christianity, and Sufism/Nur Nama traditions in Islam) and H...
- Tue Jun 16, 2020 6:08 pm
- Forum: Off-Topic Forum
- Topic: What does everyone do for work?
- Replies: 40
- Views: 185827
Re: What does everyone do for work?
Currently I work for Farelogix . It's a software company that provides a few different platforms for airline data services. I work entirely with an internal tool that designs 'rules' in XML to configure/script services offerings, discounts, etc. The position is dev-adjacent, I work under the dev tea...
- Wed Mar 18, 2020 8:21 am
- Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
- Topic: I call it... KOStana
- Replies: 8
- Views: 3379
Re: I call it... KOStana
I had missed this before. Good job! I had tried my hand at something similar back in 2003, but my goal was to get a dreamcast into a standard 5.25in bay. I gutted a CD drive, built a molex power adapter for the dreamcast, and shaved down a motherboard by a few mm and bent the G2 port up to get it to...
- Wed Jun 19, 2019 4:48 pm
- Forum: Programming Discussion
- Topic: Anybody available to help with dc-load-ip testing?
- Replies: 21
- Views: 4996
Re: Anybody available to help with dc-load-ip testing?
First of all I want to say thank you to Quzar for such update. dc-tool/dc-load are, for me, a crucial part of the KOS environment and sadly it seems that it don't have the attention its deserves, especially about the debugging capabilities (which are put in highlight on DreamSDK R2 for ex). Of cour...
- Sun May 19, 2019 7:57 am
- Forum: Programming Discussion
- Topic: Strange bug with snd_sfx_play
- Replies: 9
- Views: 1636
Re: Strange bug with snd_sfx_play
Could people having the problem please provide the wavs that it's occurring with? After reviewing the code (I made the most recent changes and was worried I broke something) I don't see any silliness like overflows that would cause this. From looking through forum archives though, I do see a lot of ...
- Thu Apr 04, 2019 12:57 pm
- Forum: Programming Discussion
- Topic: GLdc 1.1 Released
- Replies: 6
- Views: 1184
Re: GLdc 1.1 Released
No real reason, I just thought it might produce faster code than -O3 in some situations (even if not to the standard). Is there a reason to avoid it? If you have a benchmarking setup it might be worth it to test various differences. I know back in the day I always used -Os, as O3 would randomly bre...
- Thu Apr 04, 2019 12:45 pm
- Forum: Programming Discussion
- Topic: Anybody available to help with dc-load-ip testing?
- Replies: 21
- Views: 4996
Re: Anybody available to help with dc-load-ip testing?
Thanks darc. I think I'll go back to the drawing board for now and restrict myself to toying with the BBA side, since I can test that myself.
- Thu Mar 21, 2019 6:02 pm
- Forum: Programming Discussion
- Topic: Anybody available to help with dc-load-ip testing?
- Replies: 21
- Views: 4996
Anybody available to help with dc-load-ip testing?
As a minor project, I've been going through dc-load-ip and trying to standardize the code for the Sega LAN Adapter (SLA) and BBA to match what is in KOS. 99% is just moving blocks of code around, renaming things, and adding register macros (but there were a number of differences that show some regis...
- Thu Mar 21, 2019 3:18 pm
- Forum: Off-Topic Forum
- Topic: A sincere apology from Ian Micheal
- Replies: 13
- Views: 3600
Re: A sincere apology from Ian Micheal
Welcome back. Ditto to everything everyone else said.
- Mon Dec 24, 2018 8:06 pm
- Forum: Programming Discussion
- Topic: Debug message expanded to handle vga
- Replies: 1
- Views: 2773
Re: Debug message expanded to handle vga
Decided to dig through old forum posts for KOS updates. This has been added to git revision 50f96e5.
- Thu Dec 20, 2018 2:56 pm
- Forum: Programming Discussion
- Topic: DreamSDK R3 is now available!
- Replies: 37
- Views: 9707
Re: DreamSDK R1 released
Hi! Thanks for this framework Sizious, I would like to try it with my current developmnet. I have some questions that I'm looking for and I'm not found it completely. 1. Whats is the coder's cable? What possibilities it has? Disadvantages and advantage to use it? 2. How can I debug my games with th...
- Wed Dec 12, 2018 3:16 pm
- Forum: Programming Discussion
- Topic: Updates to bfont
- Replies: 7
- Views: 2238
Re: Updates to bfont
https://github.com/mrneo240/neoIP/blob/master/src/biossymbol.c used with offsets from here http://submarine.org.uk/info/biosfont/ Supports any of those symbols listed. I was wholly unaware of you or your code. I wrote this a few years ago and only now got around to polishing it and releasing it. Th...