Difference between pages "RetroArch" and "NullDC PSP"

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{{Infobox software
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{{Infobox emulator
|logo         = retroarch.png
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|title = nullDC
|developer    = Squarepusher, themaister, others
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|logo = nullDC-PSP.png
|version       = {{RetroArchVer}}
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|logowidth = 170px
|active       = Yes
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|version = [https://archive.org/details/nullDC-PSP 1.2.1]
|platform     = Multi-platform
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|active = Yes
|type          = [[libretro]] frontend
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|platform = [[Emulators on PSP|PlayStation Portable]]
|website       = [http://www.libretro.com/ libretro.com]
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|target = [[Sega Dreamcast emulators|DreamCast]]
|source       = [https://github.com/libretro GitHub]
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|developer = drk//Raziel (skmp), xiro and hlide.
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|accuracy = Medium-Accurate
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|website = [https://psp-archive.github.io/nulldce-psp nulldce-psp]
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|support =
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|prog-lang = C++, C
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|license =
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|source = [https://github.com/PSP-Archive/nulldce-psp GitHub]
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|bios          = [[Emulator_Files#Nintendo_DS_.2F_DSi|Required for DS]]
 
}}
 
}}
'''RetroArch''' (formerly '''SSNES''') is an open-source, multi-platform frontend for the [[libretro]] API. It is designed to be fast, lightweight, and portable.
 
  
RetroArch is available for Windows, macOS, Linux, [[Android emulators|Android]], [[IOS emulators|iOS]] (jailbroken), BlackBerry 10, Raspberry Pi, OpenPandora, [[PlayStation 3 emulators|PlayStation 3]], [[PlayStation Portable emulators|PlayStation Portable]], [[Xbox emulators|Xbox]], [[Xbox 360 emulators|Xbox 360]], [[GameCube emulators|GameCube]], [[Wii emulators|Wii]], [[Nintendo 3DS emulators|Nintendo 3DS]], [[Wii U emulators|Wii U]], and [[Nintendo Switch emulators|Switch]].
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'''nullDC-PSP''' is a free and open-source [[Sega Dreamcast emulators|DreamCast]] emulator for [[PlayStation Portable emulators|PlayStation Portable]]. It's written in C++. This is an experimental and Beta stage release and many games are playable but low fps. Sound is not yet emulated.
  
==Downloads==
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==Overview==
*[http://buildbot.libretro.com/stable/ RetroArch Stable Builds]
 
*[http://buildbot.libretro.com/nightly/ RetroArch Nightlies]
 
*[http://buildbot.libretro.com/nightly/windows/ Windows RetroArch-Nightly-Installer]
 
*Ubuntu PPAs: [https://launchpad.net/~libretro/+archive/ubuntu/stable Stable], [https://launchpad.net/~libretro/+archive/ubuntu/testing Nightly/Testing]
 
*Arch Linux User Repositories: [https://aur.archlinux.org/packages/retroarch/ Stable], [https://aur.archlinux.org/packages/retroarch-git/ Testing], [https://aur.archlinux.org/packages.php?O=0&K=libretro&do_Search=Go All], [https://aur.archlinux.org/packages/libretro-super-git/ libretro-super]
 
  
===Mobile/Console Versions===
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nullDC is a Dreamcast emulator for PSP, currently in an experimental stage. The emulator was originally developed in 2008. The source code was lost for many years; it was published on GitHub in the mid-2010s, It was compiled and restored by <b>xiro</b> and <b>hlide</b> in 2021.
*[https://play.google.com/store/apps/details?id=com.retroarch&hl=en RetroArch for Android on Play Store]
 
*[http://buildbot.libretro.com/repo/fdroid/repo RetroArch for Android - F-Droid nightly build repository]
 
*[http://buildbot.libretro.com/repo/cydia RetroArch for iOS - Cydia nightly build repository]
 
*[https://pyra-handheld.com/boards/threads/retroarch-1-7-2.81254/ RetroArch for Pandora on OpenPandora's repo] and [http://repo.openpandora.org/?page=detail&app=retroarch.lifning.001 old 2013 variant]
 
*[https://anonfiles.com/file/d53ed28c60439a8479fe8ad6a614f5bb RetroArch for PS3 (CFW)] and [https://anonfiles.com/file/29b5e70f7245bba9fc207a5e3038dbfc PS3 (DEX)] v.1.0.0.2
 
*[https://anonfiles.com/file/85cde880d0fd5b6677ca421b55bfa06f RetroArch for Xbox] and [https://anonfiles.com/file/3456af4be7bfd697b6f239d947960cfa Xbox 360] v.1.0.0.2
 
*[http://buildbot.libretro.com/nightly/blackberry/ RetroArch for BlackBerry 10]
 
*[https://buildbot.libretro.com/stable/1.7.5/nintendo/switch/libnx/RetroArch.7z Retroarch for Nintendo Switch]
 
==Supported Systems==
 
{{Main|libretro#Cores}}
 
  
==Features==
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==Download==
*Consistency across multiple platforms, using the same UI structure and a fully featured command line interface.
 
*Gamepad controlled menu system with multiple styles available, such as XMB or Material UI. (There's also a [https://www.youtube.com/watch?v=hfuioGjCItw QT-based 'WIMP' desktop-style interface] for PC platforms that was announced before and released in version [https://www.libretro.com/index.php/retroarch-1-7-3-released/ 1.7.3].)
 
*Gamepad auto-configuration profiles, so that gamepads are mapped automatically when connected. XInput controller autoconfig is built into the application, with other controller types available as external profiles.
 
*Per-core and per-game configuration overrides
 
*Custom resolution and refresh rate for video output, with exclusive fullscreen mode and monitor index for multi-monitor setups.
 
*Dynamic rate control for smooth audio and video, even when the game's output rate is different from your system. Especially obvious with systems like GBA that do not run 60Hz.
 
*Basic fast forward, SRAM saving, savestate, etc. It supports serialization of the emulation state which is used to provide real-time rewind and netplay.
 
*[[Shaders and Filters|Pixel shaders]], primarily using Cg and GLSL, with HLSL on Xbox 360. The shader format it uses is flexible and fairly easy to use, allowing for complex multi-pass effects with adjustable runtime parameters. Also supports traditional video filter plugins that are run in software.
 
*Supports audio DSP filter plugins through .dsp configuration files.
 
*Custom overlay support.
 
*FFmpeg recording and playback support. It can record either the native resolution output of the core or the post-processed output of the frontend. Playback is handled through an internal FFmpeg libretro core.
 
*[[GGPO]]-like netplay (latency hiding rollback). It should be lag-free if everyone involved emulates at full speed, doesn't live on opposite sides of the world and has decent internet speeds. It uses peer-to-peer UDP and supports two players. Due to rollback, it requires a fair amount of CPU power to run, and the core must support serialization.
 
*Options for decreasing input latency related to vsync by eliminating buffering by the video driver, as well as using frame delay to delay polling of inputs until right before a vsync occurs on the display.
 
*Run-ahead to reduce latency. This setting allows cycle-accuracy emulators to run ahead of mandatory 1 or 2 frames of input lag. It allows emulators to [https://www.libretro.com/index.php/retroarch-1-7-2%E2%80%8A-%E2%80%8Aachieving-better-latency-than-original-hardware-through-new-runahead-method/ achieve better latency than original hardware] (Official debut in version 1.7.2).
 
  
=Building RetroArch==
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{| cellpadding="1"
{{Main|Building RetroArch}}
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|-
==Using RetroArch==
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|align=center|{{Icon|PSP}}
{{Main|Using RetroArch}}
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|'''[https://archive.org/details/nullDC-PSP 1.2.1]'''
==RetroArch for Dummies==
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|}
{{Main|Dummies Guide: RetroArch}}
 
  
==Netplay==
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==Compatibility==
Netplay is now usable from the menu in current builds, under Settings>Netplay Options. You can get it to work with the [https://github.com/libretro/RetroArch/wiki/Using-command-line command line] or the long-deprecated [http://www.mediafire.com/download/yrydc78bl6y82z4/retroarch-phoenix.7z RetroArch-Phoenix Launcher] as well in older builds.
 
  
You must specify whether you will be hosting (server) or joining (client) the game. If joining, you must also enter the host's IP address in the field below. Make sure your firewall is open on port 55435 (default; you can change it if you like) and that the port is forwarded in your router, if applicable. You can also specify 'spectator mode,' which will allow an arbitrary number of spectators to join and watch you play without being able to play themselves.
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* <b>[https://psp-archive.github.io/nulldce-psp/ Official Compatibility List]</b>
  
Delay frames denote the maximum number of frames RetroArch's libretro cores will need to emulate at once to maintain synchronization due to actual network latency. You can figure out an appropriate ballpark for this number by pinging the other player and dividing the time (in milliseconds) by 16 (roughly the number of milliseconds in a frame from a game running at 60 fps). If the gameplay is a bit choppy, try increasing the number of delay frames a bit.
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* <b>[[nullDC PSP Compatibility List]]</b>
  
Similar to the GGPO platform, RetroArch creates a constant stream of savestates which, along with button presses, are exchanged and compared between the server and client machines. If the savestates start to diverge, the game rolls back in time to a point where they both agree and then the libretro cores emulates the missing frames all at once to get back to the appropriate spot. This gives the illusion of completely lagless inputs, which is invaluable for twitchy, fine controls.
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*<b>[https://github.com/PSP-Archive/nulldce-psp/issues Open new game issues on Github]</b>
  
If you try to connect to a server and it immediately says client disconnected, open your log and make sure your ROMs match exactly (it will complain about a hash mismatch otherwise). If it gives you a weird time-out error, just close the window and try to connect again and it should work itself out (sometimes excessive spikes in network latency can cause the states to diverge catastrophically, resulting in this error).
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nullDC-PSP is only compatible with 'slim' models (PSP-2000 and above). It will not boot on the original PSP-1000.
  
==Alternative Launchers and Frontends==  
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==BIOS==
===skeletonKey===
 
[https://romjacket.github.io/index.html skeletonKey] is the successor to retroInvader.  In addition to a simple netplay interface, nearly every aspect of retroarch can be set using this GUI.
 
  
===retroInvader===
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[[Emulator_Files#Nintendo_DS_.2F_DSi|Required DreamCast BIOS]] files are needed in the <b><code>nullDC/data</code></b> folder :
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<B>
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*dc_boot.bin
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*dc_flash.bin
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</B>
  
[http://github.com/romjacket/retroInvader retroInvader] is designed to allow users to quickly install & configure the latest version of RetroArch, cores, and shaders.
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==Game Files==
In addition to the GUI-driven configuration & installation, retroInvader supports drag and drop for quickly launching ROMs, hosting netplay sessions as well as installing BIOS files.  retroInvader is for Windows only.
 
  
===RAEM===
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Only games in the <code><b>.gdi</code></b> format are supported for now. Place the files for each individual game within a separate folder, and move the folder to <b><code>nullDC-PSP\discs</code></b>. The list of available games will then appear when you boot the emulator.
  
RAEM (formerly RA-Player) is another launcher for RetroArch, for those that want to try something that looks more like a native Windows program. It hasn't been updated in a while, though.
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[[File:GUI.png|320px]]
  
===Phoenix===
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==Controls==
  
[https://github.com/team-phoenix/Phoenix Phoenix] is an alternative frontend for libretro that is independent of RetroArch, not to be confused with the discontinued RetroArch-Phoenix launcher. It is intended to mimic the style of [[OpenEmu]], except using libretro and being available on Windows and Linux. It is still in early development and requires that you build it yourself through Qt, though the main developer says an alpha release with prebuilt binaries is on the way.
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Idle time can be adjusted with the L / R buttons.
  
===Minir===
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To start the Dreamcast BIOS, press triangle as the emulator is booting.
 
 
[https://github.com/Alcaro/minir Minir] is another alternative libretro frontend that is independent of RetroArch and inspired by bsnes-Qt. It is stated to be a complement to RetroArch, focusing on things that RetroArch does not focus on, such as a system native GUI, cheat search, debugging, etc. This frontend is still in early development and no binary builds are provided yet, but you can build it yourself from the source code on Github.
 
  
 
==External links==
 
==External links==
*[http://wiki.libretro.com/ Libretro Wiki]
 
*[http://libretro.com/forums/index.php? Forums]
 
 
  
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* [https://discord.gg/HYE45sHtab PSP Homebrew Community Discord]<small> (#nullDC - Channel)</small>
  
[[Category:Netplay]]
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[[Category:Emulators]]
[[Category:Windows emulation software‏‎]]
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[[Category:Consoles' emulators]]
[[Category:Linux emulation software]]
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[[Category:Home consoles' emulators]]
[[Category:macOS emulation software]]
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[[Category:Sega Dreamcast emulators]]
[[Category:Android emulation software]]
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[[Category:PlayStation Portable emulation software]]
[[Category:RetroArch]]
 

Revision as of 11:40, 4 September 2021

nullDC
NullDC-PSP.png
Developer(s) drk//Raziel (skmp), xiro and hlide.
Latest version 1.2.1
Active Yes
Platform(s) PlayStation Portable
Emulates DreamCast
Accuracy Medium-Accurate
Website nulldce-psp
Programmed in C++, C
Source code GitHub
BIOS/Keys Required for DS

nullDC-PSP is a free and open-source DreamCast emulator for PlayStation Portable. It's written in C++. This is an experimental and Beta stage release and many games are playable but low fps. Sound is not yet emulated.

Overview

nullDC is a Dreamcast emulator for PSP, currently in an experimental stage. The emulator was originally developed in 2008. The source code was lost for many years; it was published on GitHub in the mid-2010s, It was compiled and restored by xiro and hlide in 2021.

Download

PSP 1.2.1

Compatibility

nullDC-PSP is only compatible with 'slim' models (PSP-2000 and above). It will not boot on the original PSP-1000.

BIOS

Required DreamCast BIOS files are needed in the nullDC/data folder :

  • dc_boot.bin
  • dc_flash.bin

Game Files

Only games in the .gdi format are supported for now. Place the files for each individual game within a separate folder, and move the folder to nullDC-PSP\discs. The list of available games will then appear when you boot the emulator.

GUI.png

Controls

Idle time can be adjusted with the L / R buttons.

To start the Dreamcast BIOS, press triangle as the emulator is booting.

External links