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DreamShell 4.0.4 Release

DreamShell 4.0.4 is a major update that takes the operating system beyond the home console: full support for NAOMI and NAOMI 2 arcade platforms, launching NAOMI cart ROMs and Dreamcast GD-ROMs images from IDE and SD on these platforms, the NAOMI coin system, and JVS input via MIE . At the core of the release are HollySH BIOS firmware for the entire SH4/HOLLY family, an updated ISO Loader system,…

NAOMI CN2 to Dreamcast and AW BBA/Modem

This article describes a direct wiring connection between a standard Sega Dreamcast expansion (G2) port devices (like Modem, Broadband Adapter or LAN adapter) and the CN2 connector on the Sega NAOMI and NAOMI 2 motherboards. Also included connection mapping for Atomiswave Broadband Adapter.

NAOMI G1-ATA (IDE) adapter for CN1 connector

This article describes a direct wiring connection between a standard IDE connector and the CN1 connector on the Sega NAOMI and NAOMI 2 motherboards. Prepare in advance for the release of DreamShell 4.0.4 ;-)

WIZnet W5500 Ethernet for Sega Dreamcast & NAOMI

This article describes connecting a WIZnet W5500 Ethernet controller to Sega Dreamcast and NAOMI/NAOMI 2 systems using existing serial interfaces configured for SPI. The W5500 is used in MACRAW mode and provides raw Ethernet frame access. The driver has already been merged into KallistiOS master and will be supported in the next version of DreamShell . Here are the tests through the network stack…

Sega NAOMI Maple <-> JVS jumper mod

A simple hardware modification for NAOMI and NAOMI 2 to disconnect the JVS controller from port 0 (port A on the Dreamcast). You just need solder jumper JP3 and switch it. This is a very useful for DreamShell and running Dreamcast games by it. After this, you can connect all Dreamcast peripherals to port A. This will result in all four ports available on the side board: A, B, C and D. You need to…

DreamShell 4.0.3 Release

Released: 30 Sep 2025 Updated: 4 Oct 2025 Video preview: youtu.be/Pa0eOxhI64o and update youtu.be/AVQEenhZroo Forum thread: www.dc-swat.ru/forum/thread-4214.html Download from Github , Discord , YouTube

DreamShell 4.0.2 Release

Video preview: youtu.be/4cWNQEyqHGs Forum thread: www.dc-swat.ru/forum/thread-4178.html Download from Github , Discord , Videos

Sega Dreamcast & NAOMI SCI-SPI Mod

This guide explains how to access the SH-4 SCI port on Sega Dreamcast and NAOMI systems in both UART/SPI communication modes. It can be used for debugging or connecting an SD card. In SPI-like mode, the SCI port can transfer data at speeds up to 1.5 MB/s, which is twice as fast as using the SCIF port for bit-bang SPI. Sega Dreamcast Motherboard Solder wires directly to the following points on the…

DreamShell 4.0.1 Release

www.youtube.com/watch?v=xhJFg8OP2UM www.dc-swat.ru/forum/thread-4144.html Github , Discord , Videos Released: 28 Dec 2024 Updated: 7 Jan 2025 (re-build on GCC 13.2 instead of 14.2) Updated: 11 Jan 2025 (fixes for app Games Menu)

DreamShell 4.0.0 Release

www.youtube.com/watch?v=ieP1EV4lOiI www.dc-swat.ru/forum/thread-4069.html Probably no one expected this to happen, but you understood everything correctly — this is the main release of DreamShell v4.0 . Exactly 20 years ago, on this day, the first version of DreamShell appeared. I wrote a short story about this on it 10th anniversary here , so I won’t repeat myself now. But I can say with…

[WIP] DreamShell 4.0.0 RC 5 Preview

The project is alive and developing as much as possible. All changes are committed to github and you can watch the progress. Last update: 12 Jan 2024 Start of testing: 1 Dec 2022 Github , Testing , Discord , Videos , Donate

DreamShell 4.0.0 RC 4

Update 05.02.2016: Uploaded all source code to GitHub . Updated changelog. Долгожданное обновление DreamShell 4.0. Этот релиз должен был состояться еще пол года назад, но к сожалению все время откладывался либо из-за нехватки времени решить все проблемы. Но вот наконец-то я довел это до рабочего состояния. Основные проблемы были решены, но к сожалению остались еще всякие мелочи. Тестировался релиз…

Registration on the site by invitation only

Due to the increasing incidence of spam, user registration on the website (not the forum) will soon be by invitation only. Hurry to register, if you thought about it, but doesn't do this until now. In the future you will be able to ask for an invitation on the forum, or ask other users who have accounts on the website. At the end of this week, free registration closes. В связи с участившимися…

Region Changer или как изменить регион Sega Dreamcast

Данные манипуляции позволят изменить не только региональную принадлежность консоли (America, Japan и Europe), но и формат выдаваемого видео сигнала (NTSC или PAL50). (Нижеописанная методика, была успешно опробована на нескольких Sega Dreamcast PAL-E)

[DREAMDEV] Сборка тулчейна

Статьи в разделе Dev будут посвящены программированию под консоль Sega Dreamcast. И в первой вступительной главе я опишу некоторые используемые инструменты, а также расскажу как подготовить и собрать набор инструментов разработчика (тулчейн)

New BIOS mod (unlock G1)

Данный мод теперь не актуален, если вы хотите сделать BIOS mod, то воспользуйтесь старой схемой . Вам нет необходимости полностью переделывать свой старый BIOS мод, это просто доработка. А если у вас не было BIOS мода раньше, то берём MX29LV160, поднимаем 1-ю,12-ю,44-ю ноги накладываем на родной BIOS и аккуратно паяем. Всё остальное думаю понятно из схем. Внимание: наличие оригинального биоса…

DreamShell 4.0.0 RC 3

Update 08.09.2014 : Uploaded to GitHub and updated change list. Update 07.09.2014 : Added english version of change list. Очередной релиз кандидат DreamShell 4.0. В данном обновлении не так много изменений как в предыдущем, но на них было потрачено не мало сил и терпения. Основной упор был сделан на улучшение ISO Loader, а остальные изменения касались в основном исправления ошибок и улучшения…

[WIP] DreamShell 4.0.0 RC 3 Preview: ISO Loader

Several HD videos demonstrating improvements and features in the new version of ISO Loader. It's not the final release, still WIP. Shenmue 2 (GDI, BIOS mod, SD and HDD PIO)

DreamShell 4.0.0 RC 2

Update 30.05.2014: Fixed a bug at reading CDI and unoptimized GDI in ISO loader firmware New optimized and working on all consoles CDI images with Core and Boot loader Update 29.05.2014: Updated ISO Loader firmware, module and app up to v0.4.1 — Improved games compability — Improved read speed for CDI and unoptimized GDI images — Disabled autosave for presets, added new checkbox for it Updated…

[WIP] DreamShell 4.0.0 RC 2 Preview: G1-ATA with IDE HDD

Update 21.04.2014 : D2, Jet Set Radio, Rayman 2, Sonic Adventure 2 Update 15.04.2014 : Alien Front Online Update 13.04.2014 : Illbleed Several videos demonstrating the G1-ATA adapter with IDE HDD. It's not final release, WIP. HDD works in PIO mode for now, not on full speed.