DreamShell v4.0.4 Release

[aldair]

Atomiswave only worked on CF-SD; it didn't work on ide_sata.

[SWAT]

(18.07.2026 21:22)fabio14789 писал(а):  I flashed `dreamshell_hollysh.bios` to my Dreamcast VA0... it gave me a black screen and didn't load the IDE card... I flashed `bootloader_devkit.bios` and it worked perfectly...
Just one question: which folder do I put the videos in? I checked GitHub but didn't see the directory paths for that =)

Hmm didn't test it on VA0 btw, only VA1. But it should works and on VA0...
trailer.avi put to GDI directory. If image is not GDI, just create separate directory with your image.

[SWAT]

I found a problem with FATFS and am looking for the cause of the crashes. I will re-upload the release once I fix it.

[aldair]

The SD card on the Dreamcast is amazing!

[fafadou]

All dreamshell is amazing, thank you @SWAT, hope you'll find the issue

[SWAT]

Re-download release:
https://github.com/DC-SWAT/DreamShell/re....4.Release
It should work much better.

[pcwzrd13]

Just tried the new release and it seems much more stable now. No more crashes opening ISO Loader or graphical glitches. I'm still having issues booting some games though (PlanetWeb 3.0, Worms World Party, etc.). Same as before, they boot about 50% of the time. Using the old ide.bin fixes this.

Also, I'm not sure it's related to this particular version but I can't boot the Visual Concepts games anymore. Have you tested these recently @SWAT?

Edit: I found something very interesting. I couldn't boot the Visual Concepts games on 4.0.3 either. I tried removing my serial SD adapter, and now they boot! They still don't boot on 4.0.4 but maybe it's a related issue? There's definitely some sort of issue with having a serial SD card reader plugged in when trying to boot the games.

[SWAT]

(25.07.2026 18:05)pcwzrd13 писал(а):  Just tried the new release and it seems much more stable now. No more crashes opening ISO Loader or graphical glitches. I'm still having issues booting some games though (PlanetWeb 3.0, Worms World Party, etc.). Same as before, they boot about 50% of the time. Using the old ide.bin fixes this.

Also, I'm not sure it's related to this particular version but I can't boot the Visual Concepts games anymore. Have you tested these recently @SWAT?

Edit: I found something very interesting. I couldn't boot the Visual Concepts games on 4.0.3 either. I tried removing my serial SD adapter, and now they boot! They still don't boot on 4.0.4 but maybe it's a related issue? There's definitely some sort of issue with having a serial SD card reader plugged in when trying to boot the games.

2K sports and Worms works fine for me. Only Ooga Booga not boot and NHL doesn't load to gameplay. Planetweb works from 8сfe8000.

[pcwzrd13]

(25.07.2026 19:31)SWAT писал(а):  

(25.07.2026 18:05)pcwzrd13 писал(а):  Just tried the new release and it seems much more stable now. No more crashes opening ISO Loader or graphical glitches. I'm still having issues booting some games though (PlanetWeb 3.0, Worms World Party, etc.). Same as before, they boot about 50% of the time. Using the old ide.bin fixes this.

Also, I'm not sure it's related to this particular version but I can't boot the Visual Concepts games anymore. Have you tested these recently @SWAT?

Edit: I found something very interesting. I couldn't boot the Visual Concepts games on 4.0.3 either. I tried removing my serial SD adapter, and now they boot! They still don't boot on 4.0.4 but maybe it's a related issue? There's definitely some sort of issue with having a serial SD card reader plugged in when trying to boot the games.

2K sports and Worms works fine for me. Only Ooga Booga not boot and NHL doesn't load to gameplay. Planetweb works from 8сfe8000.

I tested NBA 2K2, NFL 2K2, Ooga Booga, and Floigan Bros. None of them boot for me. The sports games play the into animations but it freezes after that.

I got the web browser to boot from 8сfe8000. Thanks! I was using default with low-level before.

[Elgor4uk]

(25.07.2026 17:29)SWAT писал(а):  Re-download release:
https://github.com/DC-SWAT/DreamShell/re....4.Release
It should work much better.

Не прошиваются новые BIOSы, ни Devkit ни Retail ни Holy. Загрузка 100% и в конце надпись Successful, но при старте чёрный экран-кирпич. Вернул 2.8. Если не использовать SD, Naomi и Weldscreen, есть нужда перепрошиваться на новые?

[SWAT]

(25.07.2026 21:28)pcwzrd13 писал(а):  

(25.07.2026 19:31)SWAT писал(а):  

(25.07.2026 18:05)pcwzrd13 писал(а):  Just tried the new release and it seems much more stable now. No more crashes opening ISO Loader or graphical glitches. I'm still having issues booting some games though (PlanetWeb 3.0, Worms World Party, etc.). Same as before, they boot about 50% of the time. Using the old ide.bin fixes this.

Also, I'm not sure it's related to this particular version but I can't boot the Visual Concepts games anymore. Have you tested these recently @SWAT?

Edit: I found something very interesting. I couldn't boot the Visual Concepts games on 4.0.3 either. I tried removing my serial SD adapter, and now they boot! They still don't boot on 4.0.4 but maybe it's a related issue? There's definitely some sort of issue with having a serial SD card reader plugged in when trying to boot the games.

2K sports and Worms works fine for me. Only Ooga Booga not boot and NHL doesn't load to gameplay. Planetweb works from 8сfe8000.

I tested NBA 2K2, NFL 2K2, Ooga Booga, and Floigan Bros. None of them boot for me. The sports games play the into animations but it freezes after that.

I got the web browser to boot from 8сfe8000. Thanks! I was using default with low-level before.

That's strange, it runs without low-level from default 8с004000, and it works with low-level too, Ooga Booga works only in low-level.
In general, you can use the loaders from the previous version. For CDDA, it's better to use the new one. Otherwise, the changes concern NAOMI support and some improvements for serial SD card, for which compatibility has most likely improved (AW games support at least), since VC games still don’t work on it.

[SWAT]

(26.07.2026 11:56)Elgor4uk писал(а):  

(25.07.2026 17:29)SWAT писал(а):  Re-download release:
https://github.com/DC-SWAT/DreamShell/re....4.Release
It should work much better.

Не прошиваются новые BIOSы, ни Devkit ни Retail ни Holy. Загрузка 100% и в конце надпись Successful, но при старте чёрный экран-кирпич. Вернул 2.8. Если не использовать SD, Naomi и Weldscreen, есть нужда перепрошиваться на новые?

Боисы я проверил - работают. Но во время прошивки я словил опять краш и подвисание, причем это на IDE только проявляется, так что прошивать лучше с SD пока. Что-то еще есть что я не исправил видимо.

[SWAT]

The issue in KallistiOS that was causing DreamShell crashes turned out to be deeper than I thought. I rolled back the latest changes to the SH4 cache in KOS, and now it seems all the crashes have gone away completely.
Re-download release 4.0.4 to get fixes. But it impossible to build manually yet since need to fix KallistiOS first and then update DreamShell to it.
https://github.com/DC-SWAT/DreamShell/re....4.Release

[Elgor4uk]

(26.07.2026 13:56)SWAT писал(а):  Боисы я проверил - работают. Но во время прошивки я словил опять краш и подвисание, причем это на IDE только проявляется, так что прошивать лучше с SD пока. Что-то еще есть что я не исправил видимо.

Уточню. Dreamcast NTSC-J VA0, а микросхема MX29F1610MC 5V. Во время прошивок и через IDE и через ISO образ записанным на CD крашей не возникало, всё было successful.

[SWAT]

(26.07.2026 17:44)Elgor4uk писал(а):  

(26.07.2026 13:56)SWAT писал(а):  Боисы я проверил - работают. Но во время прошивки я словил опять краш и подвисание, причем это на IDE только проявляется, так что прошивать лучше с SD пока. Что-то еще есть что я не исправил видимо.

Уточню. Dreamcast NTSC-J VA0, а микросхема MX29F1610MC 5V. Во время прошивок и через IDE и через ISO образ записанным на CD крашей не возникало, всё было successful.

Попробуй еще раз с сегодняшним фиксом. Я прошил и retail_widescreen и hollysh - оба прошились и работают на дримкасте VA1.

https://www.youtube.com/shorts/9YX2kECdC_I

[pcwzrd13]

(26.07.2026 16:32)SWAT писал(а):  The issue in KallistiOS that was causing DreamShell crashes turned out to be deeper than I thought. I rolled back the latest changes to the SH4 cache in KOS, and now it seems all the crashes have gone away completely.
Re-download release 4.0.4 to get fixes. But it impossible to build manually yet since need to fix KallistiOS first and then update DreamShell to it.
https://github.com/DC-SWAT/DreamShell/re....4.Release

I just tried updating to this but I'm getting "DS_ERROR: Can't load module /ide/DS/modules/isoldr.klf" when I try and open the ISO Loader.

[Elgor4uk]

(26.07.2026 18:45)SWAT писал(а):  Попробуй еще раз с сегодняшним фиксом. Я прошил и retail_widescreen и hollysh - оба прошились и работают на дримкасте VA1.

Перепрошил Holy BIOS VA1 новой сборкой. Результат - чёрный экран, но звук загрузки Dreamshell есть.

[SWAT]

Whoops, put bad DS_CORE.BIN in archive, re-uploded

[SWAT]

(26.07.2026 19:25)Elgor4uk писал(а):  

(26.07.2026 18:45)SWAT писал(а):  Попробуй еще раз с сегодняшним фиксом. Я прошил и retail_widescreen и hollysh - оба прошились и работают на дримкасте VA1.

Перепрошил Holy BIOS новой сборкой. Результат - чёрный экран, но звук загрузки Dreamshell есть.

Только VGA поддерживается.
VC игры не работают на этом биосе, может еще какие-то.

[pcwzrd13]

(26.07.2026 19:33)SWAT писал(а):  

(26.07.2026 19:25)Elgor4uk писал(а):  

(26.07.2026 18:45)SWAT писал(а):  Попробуй еще раз с сегодняшним фиксом. Я прошил и retail_widescreen и hollysh - оба прошились и работают на дримкасте VA1.

Перепрошил Holy BIOS новой сборкой. Результат - чёрный экран, но звук загрузки Dreamshell есть.

Только VGA поддерживается.
VC игры не работают на этом биосе, может еще какие-то.

I flashed the regular bootloader-retail BIOS. Is it possible this is causing my issues?

I did test NBA 2K2 and NFL 2K2 with default settings and 8с004000 and now they boot fine. I guess the correct settings changed from the last release. I still can't boot Ooga Booga or Floigan Bros. though. I tried with two different CF cards (Transcend and SanDisk) but they don't work on either. Tested both low-level and 8с004800 without low-level. I also tried the ide.bin from both 4.0.2 and 4.0.3 and they still don't boot. Reverting DreamShell back to 4.0.3, they boot fine.