Здравствуйте! Благодарим вас за интерес к «4DO»! Максим пригласил меня сюда, поэтому я подумал, что должен с вами познакомиться.

Разработка «4DO» идёт успешно, и я надеюсь, мы продлим жизнь платформы 3DO, расширяя возможности «FreeDo»! Эмулятор «4DO» сейчас достиг почти тех же возможностей, что ранее были в «FreeDo». Однако исходный код нашего эмулятора полностью открыт!

Добиться 100%-ой совместимости с играми будет тяжело. Я не уверен, что буду стремиться достигнуть эту цель. Тем не менее, исходный код является открытым и доступен для всех, кто хочет расширить его возможности в будущем. Даже если мой интерес к этому проекту когда-нибудь угаснет, дальнейшая разработка может быть продолжена.

Я всегда ценил обратную связь через fourdo.com. Если у вас есть вопросы, вы можете их задать там. Если вы обнаружили критическую ошибку, пожалуйста, дайте мне знать.

Я иногда буду появляться на вашем форуме (3DO Planet).

Posted on February 12, 2012 by Johnny

This release fixes a bug I noticed in the previous release.

Changes:
Fixed bug in audio buffer size calculation. This was causing some audio buffer size selections to behave incorrectly.

If you want to try 4DO 1.1.3.1 beta, head to to the download page:
4DO Downloads
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4DO 1.1.3.0 Beta Released!
Posted on February 12, 2012 by Johnny

I’ve added some long-awaited features. Enjoy!

Features:
Added the ability to adjust the emulated CPU clock speed. This can result in framerates increased beyond the original hardware limits. This is analogous to the setting in the latest (last?) version of FreeDO. Be aware that many games will not handle this well since they were not coded to support it. I’ve found that Star Fighter is an example of a game that handles a clock speed increase well.
Added the ability to adjust the audio buffer size. I have found that audio buffer size is a bit of a personal preference. The default is 100ms, but people who want more protection from audio glitches can now adjust the audio buffer size higher (at the cost of latency).
Added a few command-line options for debugging purposes. At the moment, these are mainly for my own purposes, but see the command line usage for specifics.

The “advanced” options from above have been stuffed under a new “Advanced” tab in the options screen:

The command line usage available in 4DO is:
======================================================================
= 4DO command line options Usage =
= Basic usage: 4DO.exe [-option value][/option "value"][--switch] =
======================================================================

--PrintKPrint
Enables printing of KPrint (3DO Debug output) to the console.
______________________________________________________________________

-DebugLogging [LoggingOption_1|LoggingOption_2]
Enable extra logging to the log files Valid values are:
AudioDebug
AudioTiming
CPUTiming
______________________________________________________________________

-DebugStartupForm [StartupForm]
Starts an extra dialog at startup. Valid values are:
None
ConfigureInput
______________________________________________________________________

-? /? --? -h /h --h -help /help --help
Displays this help message.

4DO 1.1.4.0 Beta Released!

This is one a lot of you have been waiting for!

Changes:
Added support for high-resolution (640×480) rendering. You can find the option for the in the “4DO Options” screen, under the “Advanced” tab. This is only of value for 3D games. Additionally, since each frame takes 4 times as long to process, it will cost a lot of CPU! I recommend increasing your audio buffer as well if you enable this.

Here’s a quick visual glance at the differences:


I’d finally gotten enough control over the timing nuances and audio behavior to look into and enable these advanced features from the later revisions of FreeDO. I must stress that, like in FreeDO, this option hogs the CPU quite a bit. This is due to the fact that all graphics processing is essentially software rendering. Not many games handle this well. For the record, I found that Road Rash and Star Fighter both performed well.

So, that wraps up a big block of feature-related changes I intended to knock out. For a while, I intend to take a break from adding new features for a bit and concentrate again on bug fixes.

Also, anybody interested in helping me develop or test 4DO, please introduce yourself in the forums!

Please enjoy!

If you want to try 4DO 1.1.4.0 beta, head to to the download page