psx_gpu: fix a blending issue
[pcsx_rearmed.git] / readme.txt
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2PCSX-ReARMed - yet another PCSX fork
c9dbba7f 4
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10PCSX ReARMed is yet another PCSX fork based on the PCSX-Reloaded project,
11which itself contains code from PCSX, PCSX-df and PCSX-Revolution. This
12version is ARM architecture oriented and features MIPS->ARM recompiler by
3938f69a 13Ari64, NEON GTE code and more performance improvements. It was created for
14Pandora handheld, but should be usable on other devices after some code
b0c8d18b 15adjustments (N900, GPH Wiz/Caanoo versions are also available).
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c069dc1b 17PCSX ReARMed features ARM NEON GPU by Exophase, that in many cases produces
18pixel perfect graphics at very high performance. There is also Una-i's GPU
19plugin from PCSX4ALL project, and traditional P.E.Op.S. one.
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25This version features a framebuffer driven menu that can be used to run
26games and configure the emulator.
33716956 28Supported CD image formats:
f932e54b 29- .bin/.cue
30- .bin/.toc
31- .img/.ccd/.sub
32- .mdf/.mds
303ee308 33- .Z/.Z.table
33716956 34- .bz/.bz.table
35- .ZNX/.ZNX.table (partial)
36- EBOOT.PBP (PSP, partial)
bab59f00 37- .cbn
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7ca0ce80 39CDDA (CD audio) only supported when .cue/.toc/.ccd/.mds files are present.
900acfae 40There is support for .sbi files, which can be used instead of
41.sub files to save space (name it the same as .cue/.bin, just use .sbi
42extension). This is required for Libcrypt copy protected game support.
303ee308 43
c9dbba7f 44The emulator can simulate BIOS, which means BIOS files are not required,
45however implementation is not complete and some games still need real BIOS
46to work. To use real BIOS, copy uncompressed BIOS files to
47[sd card]/pandora/appdata/pcsx_rearmed/bios/
48then select the BIOS you want to use in Options->BIOS/Plugins menu.
b0c8d18b 50On pandora, analog controllers are supported using nubs, but this is
51disabled by default and needs to be enabled in 'Controls' menu.
7ca0ce80 52There is also touchscreen based GunCon support, which also requires
53appropriate controller selected in controls configuration.
799b0b87 54
303ee308 55
ee78346e 56Plugins
59GPU (graphics) and SPU (sound) plugins can be selected in
60[BIOS/Plugins] menu:
c069dc1b 62builtin_gpu - this is either Exophase's ARM NEON GPU (accurate and fast,
63 available if platform supports NEON), else it's P.E.Op.S.
64 soft GPU (accurate but slow). - plugin from PCSX4ALL project. Faster than P.E.Op.S.
66 but has some glitches.
ee78346e - experimental port of P.E.Op.S. MesaGL plugin to OpenGL ES.
68 Occasionally faster but has lots of glitches and seems to
69 be rather unstable (may crash the system).
c069dc1b - P.E.Op.S. soft GPU (in case builtin one is NEON)
71builtin_spu - P.E.Op.S. SPU plugin, optimized for ARM.
ee78346e - NULL plugin, i.e. no sound emulation.
9af2e936 75Changelog
ea1f6f2f 78r14 (2012-03-04)
79* GLES GPU: implemented frameskip
80* GLES GPU: merged some changes from schtruck/FPSE
81* Caanoo: potential workaround for save corruption
82 (always exit emulator cleanly before turning off the console
83 to reduce chance of corruption)
84* Caanoo: fixed a bug in GTE code (graphic glitches in some games)
85* Caanoo: reworked vibration support, should support more games
86* various refactoring/minor tweaks
3ce7adeb 88r13 (2012-01-09)
89* yet more fixes for regressions from earlier versions
90* various fixes for NEON GPU (in collaboration with Exophase)
91+ NEON GPU supports interlace mode now, but it's not always
92 enabled due to frameskip glithes (can be changed in the menu)
93* cdda should resume on savestate load now
94* fixed date display in menus to honour locale
95+ pandora: added support for minimizing the emulator (while ingame only)
c069dc1b 97r12 (2011-12-24)
98+ new ARM NEON GPU rasterizer from Exophase (NEON hardware required)
99+ new GPU emulation code
100+ new analog controller configurator
101* changed frameskip handling (again..), higher values supported
102* fixed several more regressions from earlier versions
103* changed cdrom code with hope for better compatibility
104* sprite optimization for PCSX4ALL plugin
105+ Caanoo: added vibration support
b0c8d18b 107r11 (2011-10-31)
108+ added Wiz support
109* Caanoo: fixed tv-out
110+ Caanoo/Wiz: added scaling (16bpp only)
111+ Caanoo/Wiz: added touchscreen-as-buttons input (4 sections)
112+ added .cbin support
113+ added multidisk eboot support (use "next multidisk CD" in exras menu)
114* some GTE related optimizations
115* various other optimizations
116+ added some speed hack options for slower devices
117 (get more speed at stability and correctness loss)
118* fixed several compatibility issues
119* fixed a few crash situations
120* various minor adjustments
121* maemo: merged some code from Bonapart
122* maemo: fixed BIOS issue (hopefully)
cbd45cda 124r10 (2011-10-10)
125+ added Caanoo port
126+ completely rewrote memory handlers
aaac9c7e 127+ added fixed frameskip option
cbd45cda 128+ added ability to change PSX clock
129+ implemented GTE dead flag detection
130* switched to larger timeslices for better performance
131* fixed some cases of flickering
aaac9c7e 132* fixed a crash in PCSX4ALL GPU plugin
133* fixed several dynarec compatibility related issues (hopefully)
cbd45cda 134* fixed multiple SPU regressions from r9 and earlier
aaac9c7e 135* fixed frame limiter issue that sometimes caused stuttering
136* fixed some minor GUI issues
7ca0ce80 138r9 (2011-08-13)
139* fixed various dynarec integration issues that were causing instability
140* merged latest Ari64 dynarec code for some performance improvement
141* changed frameskip handling in builtin and PCSX4ALL plugins,
142 fixes some cases where it would not work
143* merged PCSX4ALL 2.2 GPU code to it's plugin
144* fixed PCSX4ALL GPU inline asm, was miscompiling for ARMv7.
145+ added CDDA handling for eboot format
146* improved CDDA handling for all image formats that support it
147* various compatibility/accuracy improvements
148* optimized PEOPS SPU core
149* various menu adjustments
150* changed scaling options a bit, there are now two 4:3 options:
151 integer and fractional
152+ added some basic memory card manager, which allows to change
153 or remove cards (remove needed for Tenka)
154+ added GunCon support
155+ added gpuPEOPS2 plugin (peops rendering + new emulation code)
3938f69a 157r8 (2011-03-22)
158* improved recompiler performance for some games
159* fixed a few recompiler related compatibility issues
160 (also fixes broken memcard support in some games)
161* fixed some graphics problems caused by frameskip.
162 Note that not all problems were fixed, so if you see graphics
163 glitches try turning off frameskip or using different GPU plugin.
164+ added screenshot function
165+ added some code to attempt to sync with pandora's LCD better
166* merged a few compatibility fixes from PCSX-Reloaded
167* fixed and issue with external controllers
168* added experimental ability to use nubs as buttons
900acfae 170r7 (2011-03-02)
171+ implemented most used GTE operations in NEON
172* merged latest Ari64's recompiler patches
173* removed some code from the recompiler that is unneeded for R3k
174* added some special handlers for constant reads
175* some moderate builtin GPU and SPU optimizations
176+ added SBI support
177* tuned frameskip code again
178* fixed one 'analog controller not working' issue
179* fixed a crash in builtin gpu code
180* fixed cdrom slowdown issue
181* fixed my stupid bug in the recompiler that slowed down
182 recompilation a lot
183* some other refactoring
acb57d8d 185r6 (2011-02-10)
186+ added analog controller support using nubs (disabled by default)
187+ added control config saving
188+ added support for ingame actions (eg. savestate load)
189+ added 'auto' region option and made it default
190+ added cd swap functionality
191+ added maemo frontend from Bonapart
192 (with some tuning, source code only)
193* reworked key configuration to be less confusing
194* fixed 'SPU IRQ wait' option sometimes causing noise
195 and turned it on by default
196* fixed mono xa masking (was causing noise)
197* fixed word access macros in dfxvideo (darkness problem)
198* changed GPU DMA timing back to 1.92 levels
199* backported more fixes from PCSX-Reloaded project
200 (mostly shalma's work, see GIT)
201* fixed a few more recompiler issues
202+ fixed frameskip in builtin plugin
5b09a334 204r5 (2011-01-31)
205+ added support for .bz format, also partial support for
206 .znx and eboot.pbp formats
207+ merged latest cdrom code from PCSX-Reloaded project
208* fixed remaining savestate incompatibilities between PCSX4ALL
209 and P.E.Op.S. GPU plugins
210* fixed channel disable preventing irqs in P.E.Op.S. SPU plugin
211* fixed some alignment issues
212+ added handling for branches in delay slots
213+ fixed some unexpected drops to menu
214* fixed lots of recompiler related issues (see GIT)
215+ added watchdog thread to detect emulator lockups
216* minor frontend adjustments
c9dbba7f 218r4 (2011-01-15)
219+ added real BIOS support (and various things for it to work)
220* fixed various recompiler issues
221+ added interpreter option (useful to overcome dynarec bugs)
222* fixed some memory card related issues with HLE bios
223* rewrote frame limiter (old was sometimes sleeping needlessly)
ee78346e 225r3 (2011-01-05):
226+ added Pickle's port of gpu-gles from psx4m project
227+ added PCSX4ALL gpu as a plugin
228* improved gpu plugin support
229+ added savestate preview
230* various frontend fixes
232r2 (2010-12-29):
9af2e936 233* fixed memcard paths
234* fixed a keybind copy-paste bug
235* properly implemented pad handling
ee78346e 236 (inputs no longer control both emulated pads at once)
9af2e936 237* fixed a crash caused by framebuffer out of range access
238* fixed SWL/SWR handling (usually resulted in graphic glitches)
239* fixed BxxZAL (Medal of Honor)
240* fixed alignment crash in color space conversion code (Lunar)
241* fixed SWC2 occasional use of wrong address register (Parasite Eve)
242* fixed firstfile() handling in HLE BIOS (broken memory cards in some games)
243+ added per-game configs (controls still not saved though)
244+ added simple plugin select interface to the menu
ee78346e 246r1 (2010-12-25):
9af2e936 247* initial release
303ee308 250Credits / License
f932e54b 253Emulator core:
303ee308 255(C) 1999-2003 PCSX Team
6b8a7b88 256 (c) 1998 Vision Thing
257 Linuzappz <>
258 Shadow <>
259 Pete Bernett <>
260 NoComp <>
261 Nik3d
262 Akumax <>
303ee308 264(C) 2005-2009 PCSX-df Team
6b8a7b88 265 (c) Ryan Schultz <>
266 (c) Andrew Burton <>
267 (c) Stephen Chao <>
268 (c) Marcus Comstedt <>
269 Stefan Sikora <>
900acfae 271(C) 2009-2011 PCSX-Reloaded Team
6b8a7b88 272 edgbla (Root counters, various core/plugin fixes)
900acfae 273 shalma (GTE Divider, many core improvements, sound plugin fixes)
6b8a7b88 274 Firnis (GTE code from PCSX-Revolution Project)
275 Gabriele Gorla (MDEC decoder)
6b8a7b88 276 Peter Collingbourne (Various core/psxbios fixes)
ee78346e 277 Dario, NeToU, siveritas (Various bugfixes)
6b8a7b88 278 Wei Mingzhi (Maintainer, input plugin, iso/cheat support, misc stuff)
c069dc1b 280NEON GPU plugin:
3ce7adeb 281 (C) 2011-2012 Exophase
282 (C) 2011-2012 notaz
c069dc1b 283
ee78346e 284PCSX4ALL GPU plugin:
285 (C) 2010 PCSX4ALL Team
286 (C) 2010 Unai
287 Franxis <>
288 Chui <>
290GLES plugin (psx4m project):
f932e54b 291 (C) 1999-2009 by Pete Bernert
292 EQ
293 Olli Hinkka
294 Proger
295 Pickle
c069dc1b 297P.E.Op.S. GPU plugin:
1775933a 298 (C) Pete Bernert and the P.E.Op.S. team
c069dc1b 300P.E.Op.S. SPU plugin:
1775933a 301 (C) Pete Bernert and the P.E.Op.S. team
302 (C) SPU2-X, gigaherz, Pcsx2 Development Team
303 shalma
c069dc1b 304 notaz
f932e54b 305
306MIPS->ARM recompiler:
1775933a 307 (C) 2009-2011 Ari64
6b8a7b88 308
f932e54b 309integration, optimization and frontend:
3ce7adeb 310 (C) 2010-2012 notaz
312Special thanks to Mednafen author, shalma/gretar and Rokas for
313various help while developing this emulator.
303ee308 314
3ce7adeb 315Some implementation ideas (and maybe code?) likely originated from
22d3b349 316MAME/smf/pSXauthor and were integrated by various people to PCSX.
303ee308 318Source code is released under GNU GPL license, version 2 or later.
3ce7adeb 319See COPYING included in the archive (pandora version's .pnd can be
320extracted using unsquashfs).
303ee308 322The source code is available in a GIT repository at: