dayto2pe Daytona USA 2 Power Edition


Immagine gioco: Daytona USA 2 Power Edition
   
Immagini disponibili::




 Descrizione 
Nome romset dayto2pe.zip
Anno di produzione: 1998
Produttore: Sega

Genere del gioco: Guida
Categoria: Guida / Corsa (Soggettiva)

 Emulazione 
Questo gioco NON funziona in MAME Questo gioco funziona correttamente in MAME
In MAME dalla versione: .101u5
Salvataggio state: Non supportato
Stato dell'emulazione: Preliminare
Emulazione colore: Buono
Emulazione sonoro: Imperfetto
Emulazione grafica: Imperfetto
Dimensione palette: 32768
Il driver di questo gioco in MAME č: model3.c - Leggi il codice

  Dati tecnici 
Questo gioco usa un solo schermo:
  Tipo di grafica: Raster
  Orientamento schermo: Orizzontale
  Risoluzione del gioco 496 x 384 @ 60.000000
Numero di giocatori: 1P
Controllato con:
 
 
Numero di pulsanti: 8
La scheda di questo gioco usa 6 CHIP
NomeTipoClock
PowerPC 603Rcpu166000000
M68000cpu12000000
Speakeraudio
Speakeraudio
SCSPaudio
SCSPaudio


 Dati Scheda 
Il ROMset si compone di 47 ROM
Riferito alla versione MAME: 0.152

NomeDimensioniCRC32SHA1FunzionamentoNel romset
epr-21178.172097152230bf8ac bc64c4f8a794ca59b5c488a34d1b5a2b67af8fec good dayto2pe
epr-21179.182097152d5ffb4d6 e1160bfcc180667463815b64e1815be38b6ef49d good dayto2pe
epr-21180.1920971526e7b98ed 67b0153dbc67c5df9231a968fd8a9714a1bb3f67 good dayto2pe
epr-21181.202097152bf0007ed 4e044313e7abbd4d68c1c78ad9464688d7614590 good dayto2pe
mpr-21182.14194304ba8e667f 649f273cc612b014d9b04d301da018d248a73839 good dayto2pe
mpr-21183.24194304b4b44805 8db3700207ec530ee3a83431fc891d7ab3d3bfec good dayto2pe
mpr-21184.3419430425616403 6607734479806a8812bff4d6a697f6a024156142 good dayto2pe
mpr-21185.44194304b6d5d2a1 8e6548d65d926934c5ee3ee3669d1ce2a880bc82 good dayto2pe
mpr-21186.54194304a6128662 52514e8ad978688e812a2a7d0fb54817814f2729 good dayto2pe
mpr-21187.641943043bd14ee6 55d403c38439d9d489ce94bc34017ea43df27e91 good dayto2pe
mpr-21188.74194304753fc2a5 1d4bd2b971fb0b7897109f078e260eaae437a78c good dayto2pe
mpr-21189.84194304cb439c45 a6326ae9cbbaa7235d7c9e45fa4dbc7267b681c9 good dayto2pe
mpr-21190.94194304984d56eb a04beeeadc8a11730b41ae66607777be3a7b1b5e good dayto2pe
mpr-21191.104194304a2bdcfe0 c72896d0338a98efe83e70284c49b966d679e7ea good dayto2pe
mpr-21192.11419430460cbb1fa 3b1d2da551a287efdc97e46ffeed56cf7e967bd5 good dayto2pe
mpr-21193.1241943044638fef4 0c880119c642c96b5f88eb024575f320d099d988 good dayto2pe
mpr-21194.13419430412c7a414 3069ce4e50a82e243fa0c794faeafd735625df5c good dayto2pe
mpr-21195.1441943047f39761c e861e3c622bdc44510bd0ca7e2ef1284e4550d2e good dayto2pe
mpr-21196.1541943040ab46db5 8c7ab959c677e6b8f1d1bc79cd8e04299aab56aa good dayto2pe
mpr-21197.16419430404015247 a8b3d1f9572367e1c84475035ae0c6bb7726f01d good dayto2pe
mpr-21198.26419430442ec9ed4 bdc73050a5e51032478df77a02f7cd4b4ed9d337 good dayto2pe
mpr-21199.274194304fa28088c 851f4fc5baa596f78bed21b0fe0e756865c19a9b good dayto2pe
mpr-21200.284194304fbb5aa1d 04b25e8fb8783e785fd471ffcf8330ca9f2e3ae7 good dayto2pe
mpr-21201.294194304e6b13469 4968ab49aba86d6adcfb6200a5a02a410bbbd98c good dayto2pe
mpr-21202.304194304e6b4c2be d3209101793f44d4ece327f24cd3a8a52bfc8298 good dayto2pe
mpr-21203.31419430432d08d33 dd9a3ac5a8306b861e32bbbfad2d4c5a7790c45d good dayto2pe
mpr-21204.324194304ef18fe0a 81c8c87537eef6266b5ab464ba84cd12594e64bd good dayto2pe
mpr-21205.3341943044687bea6 6633ad8ea96f8b3a89f49dbe52f92906be504ba1 good dayto2pe
mpr-21206.344194304ec2d6884 8ec53005830902ebeb4f0ee36c5b2b73c2df5ebd good dayto2pe
mpr-21207.354194304eeaa510b 5f1b9e1d09f4866289ac4ad718cb90329a93353f good dayto2pe
mpr-21208.364194304b222fef0 88cf7ce17feef2da34a86217cced98a32051b22b good dayto2pe
mpr-21209.374194304170a28ce ca0043d42e02f5913e4eb92686586704724a3e5e good dayto2pe
mpr-21210.384194304460cefe0 820f3780e89173134792c62cc43f7c629bd555dd good dayto2pe
mpr-21211.394194304c84759ce 9b2de7fa26684457a61a2eeb0a69bd28125dd118 good dayto2pe
mpr-21212.4041943046f8a75e0 3b6cb238c29a6778be354882cd27b371ce96d332 good dayto2pe
mpr-21213.414194304de75bec6 f0d6f143ad227b221bf7f7c3d1b2edaa28ad4813 good dayto2pe
epr-21325.21131072004ad6ad 3cedc58aaf40539325870c99ecedf51f161f4f4c good dayto2pe
mpr-21285.2241943047cdca6ac fda23365d5c40f4f9e810def914cd70418e5662e good dayto2pe
mpr-21287.24419430406b66f17 a7ce8f49d2db804429cedb5db53de8762b05845a good dayto2pe
mpr-21286.234194304749dfef0 43032b465f426188a6d718f22a11c6d9a79f7577 good dayto2pe
mpr-21288.25419430414bee38e 68300bf663ec3f597c73e7a39ca7057cf51a7a47 good dayto2pe
epr-20886.ic213107265b05f98 b83a2a6e7ec3d2fcd34ce701ffa66d99f6feb86d good dayto2pe
mpr-20887.ic184194304a0757684 9222527d90b3f462846a4fff95af83011871c277 good dayto2pe
mpr-20888.ic204194304b495fe65 1573ced683534bb279a6dd69f6460745b728eac0 good dayto2pe
mpr-20889.ic22419430418eec79e 341982d89952ed85c921c627c294609bf83ec44b good dayto2pe
mpr-20890.ic244194304aac96fa2 bc68cd48eae50d3558d3c5a0302a3930639e3019 good dayto2pe
epr-20985.bin65536b139481d 05fca7db7c8b084c53bd157ba3e8296f1a961a99 good dayto2pe


:  Gioco Parent
:  Gioco Clone
:  BIOS

Le dimensioni del file dayto2pe.zip sono 85.6 Mbytes (compresso)

 Informazioni 
HISTORY

Daytona USA 2 - Power Edition (c) 1998 Sega.


Daytona USA2 si aggiorna! Prova la forza e l'eccitazione delle auto a disposizione. Questa volta, il giocatore può usare la Hornet Classic, l'auto di "Daytona Usa". Ci sono nuove funzioni come la Mix Course, combinazione di Medium, Expert e Beginners, ed il giocatore può guidare nei circuiti al contrario.


- DATI TECNICI -


Sega Model 3 Step 2.1 hardware


Processore Principale : PPC603 (@ 166 Mhz)

Sound hardware : DSB2 (@ 68khz)

Sound Chip : NEC uD65654GF102


Giocatori : 1

Controllo : Volante

Pulsanti : 4


- CURIOSITA' -


Pubblicato nel Dicembre 1998 in Giappone.


La Power Edition include i percorsi dell'originale "Daytona USA".



- CONSIGLI E TRUCCHI -

*Telecamera paraurti: Per accedere a questa visuale premere i bottoni di cambio visuale 1 e 2 durante il gioco.


*Telecamera elicottero: Per accede a questa visuale dall'alto, premere contemporaneamente tutti i bottoni di cambio visuale durante il gioco.

Modalità Time Lap: Durante la schermata di selezione del tipo di trasmissione, tener premuto START e premere
l'acceleratore per scegliere la trasmissione. Se lo hai fatto correttamente appariranno le parole 'Time Lap Mode' e potrai correre in pista senza interferenze da parte di altre vetture.

*Modalità Specchio (circuiti al contrario): nella schermata di selezione del circuito tener premuto START e scegliere una pista. Scegliere normalmente una macchina e la trasmissione. Adesso dovresti percorrere i circuiti in senso inverso.


- SERIE -


1. Daytona USA (1993)

2. Daytona USA 2 - Battle On The Edge (1998)

3. Daytona USA 2 - Power Edition (1998)


- FONTI -


Rom del gioco.

Immagini del cabinato.


Giochi Simili

Attenzione: I dati di history.dat potrebbero essere diversi da quelli riportati nel resto della scheda (tratti da MAME), in quanto provenienti da fonti diverse.

 MAMEINFO.DAT 
Informazioni su dayto2pe

0.101u5 [Ville Linde]


WIP:

- 0.143u6: Added driveboard rom epr-20985.bin.

- 0.135u1: Phil Bennett allows 'Daytona USA 2 Power Edition' to boot again.

- 5th November 2005: Guru - I got hold of a dump of Daytona 2 Power Edition, thanks to "m-3h" for dumping it from his machine, which was then passed onto the team and plugged into MAME by Ville. As an added bonus, this set also fixes a bad dump in the regular Daytona 2 romset.

- 0.101u5: Ville Linde added Daytona USA 2 Power Edition (Sega 1998).

- 3rd November 2005: Ville Linde - Guru dumped Daytona USA 2 Power Edition and it's working.


Other Emulators:

* Demul

* Supermodel

Informazioni su model3.c (Driver MAME)


0.89u1 [Andrew Gardner, R. Belmont and Ville Linde]


NOTES:

- Hardware: Sega Model 3 with a PowerPC 603e + tilemaps + Real3D 1000 + 68000 + 2x SCSP

- Hardware info from Team Supermodel: Bart Trzynadlowski, Ville Linde and Stefano Teso


WIP:

- 0.149u1: Changed video\m3raster.c to video\m3raster.inc.

- 1st April 2013: Bart Trzynadlowski - Supermodel WIP: The past two years have gone by so fast... you might even say they snuck up behind us and "slingshotted" past. The last year has been especially busy for Nik and I both. Last month, I finally completed my PhD and next week, I'll be moving across the country to begin a challenging but very exciting job. Unfortunately, this will likely mean a few more months of neglect for Supermodel. Happily, the last year hasn't been entirely without progress. While I was busy with other matters, Nik quietly figured out most of the network board and added a rudimentary GUI. Daytona USA 2 and Scud Race both work quite well linked up in multiplayer play. The latter suffers from a peculiar bug that causes opponent cars to pitch rather than turn, which looks comical but otherwise has no discernable effect on gameplay. There are still other bugs and performance issues to work out but this is an incredible achievement. There are no plans for an imminent release of Version 0.3a and Nik's changes have yet to be incorporated into the public SVN repository. Network play is rather difficult to set up. The GUI is sometimes unstable and unresponsive because Supermodel was not originally designed with one in mind. I think releasing it in its current unpolished state would simply lead to more frustration than enjoyment, so I would rather wait a few more months until Nik and I have time to deliver a polished, official release of Version 0.3a. Neither of us has tested multiplayer performance playing against remote opponents yet. Please bear with us but in the meantime, I hope this reassures our fervent emulationistas that Supermodel hasn't retired yet and is still capable of turning heads on the runway!

- 0.147: Made LSI53c810 optional (includes\model3.h) [smf]. Fixed for palette issues in Model3 driver, have looped trough the SVN log to trace all similar [Miodrag Milanovic].

- 0.146u5: Brian Troha added Sega rom board ID# for Virtual On 2: Oratorio Tangram (ver 5.4g) and Scud Race Plus. Minor doc update, add the Sega rom board ID# to Get Bass.

- 0.146u4: Brian Troha added Sega game ID# for Get Bass.

- 0.146u1: SCSI devices are now proper MAME devices [Phill W.]. Documentation update. Added known Sega ID# for Game, rom board & security board for several games. Noted which Scud Racer sets were Twin or Deluxe and included information about the undumped Australian DX version. Minor doc update for Daytona 2 Power Edition ID #s [Brian Troha].

- 0.145u6: Brian Troha added ROM board ID# for Virtua Striker 2 '98 (Step 1.5). Added Sega game ID#, ROM board ID#, MAIN board ID# and Security module ID# for Emergency Call Ambulance. Added Security module ID# for Spikeout F/E.

- 0.145u5: Minor doc update. Corrected game ID# & ROM board numbers (were inverted) for scuda, Spikeout F/E, Virtua FIghter 3, vs298 and lostwsga [Brian Troha].

- 5th March 2012: Bart Trzynadlowski - Supermodel WIP: Work on Supermodel has slowed to a trickle due to real world business. Nevertheless, we have managed to make small amounts of progress here and there. Now that some web sites and forum members are distributing unofficial (and unsupported) builds of SVN snapshots, the latest changes have become well known: specular lighting, a wide-screen mode, improved rendering performance (thanks to Nik), and fewer garbled textures for those capable of running Nik's multi-texture shader (the default). I also fixed the grainy SCSP audio. It turns out that I was forgetting to byte-swap the sample ROMs -- an easy mistake because the samples are all 8 bit. The other day, I discovered why the moon of Endor isn't appearing on the final stage of Star Wars Trilogy: it's due to a Z-buffering problem. By scaling the coordinates and tweaking the near and far clipping planes, I can get it to show up. Unfortunately, this introduces severe Z-fighting problems in other games. It may be possible to linearize or otherwise improve the distribution of depth buffer values but I'm putting this on the back-burner for now. Today, I spent some time investigating the "missing" AI vehicle textures in Daytona USA 2. Making them appear turned out to be a simple matter. The texture enable bit (or what we were assumed was the texture enable bit) can be ignored when the texture format is not 0 (i.e., T1RGB5, the most commonly used Model 3 format). Flat shaded polygons seem to always have that field set to 0. I also confirmed something I had long suspected: these are really four different 4-bit textures packed together in an interleaved format. I still have a lot to figure out. I don't know how the textures are supposed to be colored, although I already have some theories, and haven't figured out how the Real3D determines which one to draw. My suspicion is that the 3-bit texture format field is actually four bits wide. Hopefully today's results lead to answers for the rest of the unknown but related texture formats.

- 0.145: R. Belmont fixed master SCSP detection.

- 30th January 2012: Bart Trzynadlowski - Supermodel WIP: The diffuse and ambient lighting model has been tweaked resulting in improved colors. Shadows in Daytona USA 2 that were previously barely visible are now very prominent. Taking inspiration from my friend Kim's shiny dress, I figured out how to implement very preliminary specular lighting, which makes vehicles and metallic background objects appear shinier (as on the real Model 3 hardware). Below are three Youtube videos demonstrating the new lighting effects. Specular highlights are particularly prominent in Scud Race and the Daytona USA 2 car selection screen. Also note that the 3D Sega Saturn logo on Scud Race's daytime beginner course now appears with a prominent specular highlight and glint as the sign rotates. The lighting is far from being correct but it's a positive start! Our devoted fan nuexzz.. discovered the missing selection screen graphics in Daytona 2 by disabling the 3D graphics. I've partly re-worked the 2D rendering engine to support layer priorities. Not all possible settings are known yet but I was able to get it working for most of the games I've looked at so far. The code currently in SVN needs to be optimized and cleaned up. Among other things, the HUD in Star Wars Trilogy no longer disappears behind 3D objects, the small Sega logo is now positioned correctly on Scud Race's attract mode sequence, and layers that are supposed to obscure the 3D graphics in Virtua Fighter 3 now correctly do so. Just today, I discovered the source of the missing AI vehicle textures in Daytona 2. It turns out that those polygons disable texturing. By forcing them to render with textures enabled -- and breaking flat-shaded polygons in the process -- the textures become visible. They are encoded using interleaved formats that are not fully understood yet. Multiple patterns occupy the same texture and additional bits in the polygon header determine which is to be displayed. Unfortunately, Supermodel's rendering engine presently cannot support accurate emulation of these features but we can at least hope to figure out the proper way to interpret these texture formats. When the engine eventually gets its much-needed rewrite, it will be designed with them in mind. Last but not least, Nik has managed to squeeze a little more performance out of the rendering engine (a 5-10% increase in the frame rate) when running in multi-threaded mode.

- 16th January 2012: Bart Trzynadlowski - Supermodel WIP: Over the holidays, Nik and I had a chance to do a little bit of work on Supermodel. I looked into the 3D graphics problems that plague many of the Step 2.x games (namely Harley Davidson, The Ocean Hunter, and Emergency Call Ambulance) but was unable to make any headway. I did manage to fix the missing geometry when playing mirrored tracks in Daytona 2 and Scud Race Plus. For those who were unaware of this neat Easter egg, holding down the Start button during the course select screen allows races to be run on horizontally-mirrored tracks. As it turns out, AM2's programmers cleverly reversed the X axis without needing to modify much else. Only a single transformation matrix is changed to flip the graphics. Because of the differences between how OpenGL and Model 3 perform back-face culling, flipping a single axis reverses the orientation of most polygons, causing them to be discarded by OpenGL. Now, Supermodel performs some extra calculations to determine which side of a polygon is the front side and the mirrored graphics seem to work fine. This also fixes the wheels in Dirt Devils but is not related to any of the other problems that occur in Step 2.x games, which are caused by their unusual scene graph layout. Nik optimized how model look-up tables are cleared in the 3D engine, which is one reason for the infamous slow-downs in Daytona 2. He also added the optional ability to run all rendering in a separate thread, further enhancing performance on multi-core systems and eliminating the slow-downs on fast systems. I have not yet tested the performance in Spikeout, which suffers from a related problem, but I would expect it to have an effect there as well. Nik committed these changes to SVN today. For those running their own up-to-date builds, multi-threaded graphics are enabled by default and can currently only be disabled by setting GPUMultiThreaded to 0 in Supermodel.ini (recommended on slower systems or for those with fewer cores).

- 18th December 2011: Bart Trzynadlowski - Supermodel WIP: Nik has been doing some profiling and experimenting with parallelizing the graphics renderer in the past couple of days. By putting the renderer in its own thread (in addition to some other small optimizations), has been able to realize a modest speed improvement. He reports that Daytona USA 2 no longer stutters as severely on the advanced course. In other news, a very clever user going by the name of DaytonaFan has figured out how to get Virtua Fighter 3 Team Battle to start up!

- 24th September 2011: Bart Trzynadlowski - Supermodel WIP: Supermodel Version 0.2a is out! The big new features are: Audio, both SCSP sound and MPEG board music. New input system supporting any combination of keyboards, mice and game controllers. Force feedback for a few games (requires new drive board ROMs that first appear in MAME 0.143u6). This is a substantial update. Be sure to read the bundled README.txt in its entirety. The Help pages also provide a basic overview of various features and functions. We encourage you to visit the new forum to discuss and receive support. A hearty "thank you" is owed to Nik Henson, now an official co-author, for his incredible work developing the new input system and reverse engineering the drive board, and to world-famous emulation supermodels R. Belmont and ElSemi, for giving me access to their Digital Sound Board and SCSP code, respectively. Last but not least, I'd like to thank our new host, Jeremy Rhoten for generously donating this web space and helping me get settled in.

- 0.143u6: Andy Geezer added Model3 drive board ROMs for Scud Race, Scud Race Plus, Sega Rally 2 and Daytona USA 2.

- 31st August 2011: Bart Trzynadlowski - Supermodel WIP: The next release is coming along. Presently, we're trying to debug a tricky (and unexpected) audio buffering problem that occasionally causes audio to crash when the frame rate hiccups. In the meantime, enjoy these videos taken by Mr. Thunderwing. There is some noticeable jitter in the music now and then, most likely caused by temporary drops in the frame rate.

- 28th August 2011: Bart Trzynadlowski - Thanks to the efforts of the Dumping Union, Brian Troha has re-dumped Spikeout Final Edition! It's working in Supermodel. Version 0.2a is nearing completion. My testers are reporting random sound glitches and crashes, which may delay the release. Hopefully, the source of most of the problems can be pinpointed soon.

- 1st August 2011: Bart Trzynadlowski - Supermodel WIP: I got Ski Champ to boot today. Unfortunately, it suffers from the same issues that plague Harley Davidson and The Ocean Hunter, so it's not really playable and I haven't hooked up controls. Nevertheless, it's a small step forward for compatibility!

- 0.143u2: Model 3 working sound communications [Bart Trzynadlowski, R. Belmont].

- 21st July 2011: Bart Trzynadlowski - Supermodel WIP: Spikeout is playable now. I haven't tested it extensively but it seems to be running quite well apart from some lock-ups in attract mode and nasty texture glitches (similar to Virtua Fighter 3 and Star Wars Trilogy) caused by Supermodel's imperfect texture caching. Because Spikeout relies so heavily on texture offsets, I figured out a way to make them work with model caching. The problem was similar to that of hash table collisions. Each look-up table entry in the model cache, which corresponds to a unique model address, now contains a linked list of model vertices decoded with different texture offsets. This fixes a number of bad textures in different games. Pictured below is Fighting Vipers 2, which previously did not look quite correct.

- 13th July 2011: Bart Trzynadlowski - Supermodel WIP: For a couple weeks, I was getting very frustrated with my inability to get the Model 3's sound board to produce audio, even when feeding it MIDI commands directly. Then, the other day, while searching for the code that instructs the sound processor to play a loaded sample, I stumbled across a bug in my old 68K emulator that I had never caught before. It turns out that logical shifts behave differently on the 68K and X86 architectures when the shift count exceeds the register width. On the 68K, the result will be 0, but on X86, it is undefined and can leave the register unmodified! This was causing an important code path in Scud Race's sound driver to fail. Fast forward a few days, Nik and I have not only got the Model 3 sound board generating audio for many games, we've figured out how the PowerPC and 68K communicate. We've even got a build with sound output up and running, although it's still a bit jittery now and then due to the overhead introduced by the sound board emulation. We're also now using Karl Stenerud's excellent Musashi 68K emulator, which although slower than Turbo68K, works in both 64- and 32-bit builds. There are still some bugs and performance issues to work out, and the MPEG board is not yet emulated, but stay tuned! Slowly but surely, we're on it.

- 5th July 2011: Bart Trzynadlowski - Supermodel WIP: [krom] submitted a patch adding a few ROM sets. Dirt Devils appears to be playable, albeit with encrypted 2D graphics and also some unusual 3D glitches, namely inverted polygon normals on the left wheels of the vehicles. Spikeout was also easy to get up and running but something is preventing it from entering the game. I finally got around to hooking up a feature I had worked out months ago in my standalone prototype renderer: texture offsets. Virtual On: Oratorio Tangram makes extensive use of them, which is why the bots never looked quite right. They are also cleverly employed by Scud Race and Daytona USA 2 during the vehicle selection screens to apply different texture maps without updating polygon vertices. Unfortunately, texture offsets are not yet ready for prime time and likely will remain disabled in the next release. They are not compatible with Supermodel's texture and model caching systems, and actually cause more problems than they solve. Eventually, I intend to rewrite the entire 3D engine but before embarking on such a time-consuming overhaul, I need to uncover more of the Real3D's secrets.

- 11th June 2011: Bart Trzynadlowski - Supermodel WIP: Nik Henson contributing some fantastic work! Below is a video of one of our play testers, Abelardo, coming in first place in Scud Race with his XBox 360 controller. Nik has been working on reverse engineering the Z80-based drive board that controls the force feedback servo motors. He already has basic force feedback working but due to a lack of information on the servo boards, some details are still eluding him. If anyone has access to an actual Model 3 cabinet with the motor boards, please contact me and I will put you in touch with Nik, who could really use your help.

- 19th April 2011: Bart Trzynadlowski - Supermodel WIP: Nik Henson submitted a fantastic rewrite of Supermodel's input system for the next version. The new system is extremely robust - just about anything (keyboard, mouse, gamepad, etc.) can be assigned to any Model 3 control. Yes, this means racing games are finally playable with steering wheels! Multiple mice are also supported, meaning Lost World can be played with dual lightguns. Unfortunately, progress on sound has been slow. I've incorporated an earlier version of ElSemi's SCSP core (muchas gracias!) but haven't yet worked out the details of the PowerPC/68K serial link.

- 2nd April 2011: Bart Trzynadlowski - Supermodel WIP: I've posted a small source code update. R. Belmont fixed the UNIX Makefile and added a Mac OS X Makefile. He also made some other minor changes to the source code. Thanks to Nik Henson, a bug that was causing crashes on some 64-bit builds has been squashed. The Render3D object pointer was not being initialized properly in the CReal3D class. None of these changes seem to affect the 32-bit Windows executable, so it has not been updated. Some users have reported shader linkage errors and severely crippled 3D graphics (particularly on older ATI GPUs). There is a solution for this that ought to work in most cases.

- 1st April 2011: Bart Trzynadlowski - Supermodel WIP: Supermodel is here! Although very prelimary and far from where I ultimately want it to be, I feel that I've teased everyone for long enough. Version 0.1a can be grabbed from the Download page. Make sure to read through the Help section for installation and basic usage information. So what's new in Supermodel that hasn't made it to MAME yet? The graphics should look substantially better. Lighting and shading are generally more accurate, although still imperfect. Fog has been implemented and so has the spotlight effect. The 2D graphics emulation still has some issues, namely with regards to priorities, but is otherwise much more accurate. Layer masking and scrolling are mostly working. Several games are playable -- check out the About page for a compatibility list. So where to from now? Besides boosting compatibility, the really big things left to do are sound, a dynamic recompiler for the PowerPC, and a proper user interface. I'm not yet sure how I'm going to prioritize these things, but I'm leaning toward tackling sound first. I anticipate having much less time to devote to Supermodel in the coming months but whatever progress is made will be reported here first. So keep your eyes on this spot.

- 6th March 2011: Ville Linde - Daytona USA 2 Supermodel WIP: The 64MBit roms of this game were finally dumped a couple months ago. I hooked it up in Supermodel, and yes, it does work. It does some interesting things, like feeding texture DMA from specially mapped CROMs (0xc3000000).

- 1st March 2011: Bart Trzynadlowski - Small Supermodel WIP: I did manage to figure out a few small things since the last update. I got a few new games up and running: Daytona 2, Virtua Fighter 3, and LA Machineguns. Based on my understanding of the Model 3's SCSI controller (a well-documented part), VF3 (and Scud Race, it turns out) is either using it incorrectly, in which case it only works on the real hardware by fortuitous coincidence, or simply abusing it. It appears the programmers may have implemented single-stepping incorrectly and accidentally trigger automatic execution the very first time the SCSI controller is used. This would explain why they include an explicit interrupt (equivalent to a 'halt') command at the end of their SCSI command sequences despite single stepping. My theory is that on the actual hardware, the SCSI controller frequently hits invalid instructions, but the programmers may have never realized it. We may never know for sure but I submit that it is plausible, especially given that the SCSI controller easily recovers from such errors. If I'm correct, these findings should be directly transferable to MAME's 53C810 emulation. VF3 is still pretty buggy. I think it largely has to do with the rather large (in magnitude) coordinates it passes to the GPU, which may be causing a loss of precision in the Z-buffer, particularly if reciprocal values are used. This is probably fixable in the shaders. LA Machineguns is a mess right now and it uses the much-hated 2D tile encryption, rendering the HUD as a series of solid black tiles. The game is still playable, however. I have not looked at it in much detail yet, although it is one of my favorite Model 3 games, but it suffers from some unusual graphics problems, namely missing road textures (appearing magenta in the screen shots) and a lack of lighting. I'm pretty frustrated with LA Machineguns for sending me on a wild goose chase, hence the relative lack of progress this time. The game had me convinced that Model 3's tile generator supports extended layer sizes (128x64, for example, instead of just 64x64). After a few days of banging my head against the desk, I realized it was because I was returning all 1's for an un-emulated register. Everything works great now. On the plus side, this minor fiasco forced me to sit down and figure out the remaining mysteries of the tile generator once and for all. I now understand how scrolling works and, thanks to Charles MacDonald's fantastic work on System 24, understand that there are only two tile layers, not four as previously thought. It turns out that Model 3's tile generator is not the same as the System 24 IC (also used in Model 1 and 2) but is clearly derived from it. Next, I plan on rewriting the 2D code and returning to figuring out remaining problems with the 3D graphics. Sadly, my fast "dirty rectangles" implementation will have to be chucked out the window in situations where hardware scrolling is used. Lastly, I think I've got the spotlight finally working. It has intrigued me for a while and it was nice to finally sit down and work it out. I have to thank our Spanish friend Abelardo for taking the time to record videos of Scud Race for me, which were instrumental in getting this to work properly. This Youtube video also proved to be very helpful. Just goes to show you how one person's completely pointless Youtube clip can be another's most valuable.

- 27th February 2011: Ville Linde - Magical Truck Adventure Supermodel WIP: This was one of the Model 3 games that I really wanted to see running in Supermodel or MAME. Seeing that it was dumped a while ago, I decided to have a look. While it does rely on some tilemap interrupts and stuff that isn't properly emulated yet, I managed to get it to run the attract mode. There are also major issues with the 3D graphics, and I had to disable lighting to get even parts of the background objects visible. Also, as further bad news, the game seems to employ the tilemap encryption/compression used in Virtual-On 2 and Dirt Devils.

- 14th February 2011: Bart Trzynadlowski - Supermodel WIP: LeMans 24, Fighting Vipers 2 and Star Wars Trilogy. Since the last update, I've been spending a lot of time looking at lighting and texture modulation in Scud Race. I've figured out some important things but there are still more questions than answers. Overall, various shading effects look better than they did before, and the changes have also generally benefited Sega Rally 2 and Virtual On 2. Elsewhere, they may be causing problems. I've also discovered the source of some of the missing geometry in Scud Race. The tiki head and staircases on the mountain course, the ship on the beginner course, and the circular tower on the night course are all visible now. I have a better understanding of the source of some annoying graphical glitches in Sega Rally 2 relating to polygon RAM. I'm not yet sure how to fix them but similar problems are also showing up in some other games I added over the weekend, so now that I have more data to compare against, I'm hoping that a precise solution will become apparent. I added Le Mans 24 and got it up and running. It is very playable but suffers from some graphical problems that I suspect are related to polygon color and fog modulation. So far, Le Mans 24 holds the dubious distinction of being the ugliest Model 3 game. It appears to have been released after Scud Race and features many of the same vehicles, making its sub-par quality all the more noticeable. It would have made an average-looking Model 2 game. Today, I hooked up Fighting Vipers 2. It runs pretty well on the whole but it appears to be referencing objects in VROM that are not actually models. The result is that very large polygons are sent to my renderer, dramatically slowing the game down. This is loosely related to some issues I've encountered in Virtual On 2 during boot-up and Sega Rally 2. Star Wars Trilogy mostly looks nice but I haven't spent very much time playing with it. I'll return to it later down the road. And last, but certainly not least: about those lighting effects I mentioned at the beginning... Look closely at where the vehicle is hitting the wall. See the pale yellow circle? My top priority right now is to figure out the Model 3's spotlight effect. The devil's in the details.

- 0.141u1: Improved TLB mismatch handling in PPC DRC, so that if we fill from an empty entry, we re-dispatch to previously compiled code instead of always recompiling the target. This greatly reduces the DRC overhead on 603-based games [Aaron Giles].

- 30th January 2011: Bart Trzynadlowski - I added Virtual On and Lost World to Supermodel. Both boot up and run just fine but for some reason, many textures are missing. I don't recall having encountered this problem when we were working on the original Supermodel... It's got me quite stumped so I think I'll move on to other games and 2D graphics next. Maybe something will eventually click. For now, here are some videos of Virtual On, which runs quite well, except for the un-textured robots. Also, the last time I posted Scud Race videos, someone was kind enough to volunteer recording some high quality videos of an actual Scud Race machine for comparison. This is extremely useful to me. If anyone is able to provide reasonable quality videos or even screenshots of Model 3 games, please let me know. At the moment, I'm particularly interested in understanding a certain effect in Lost World. If you think you can help, send me a private message or an email.

- 20th January 2011: Wind - Virtua Striker 2 Version 98. A bit slow but looking good (http://www.youtube.com/watch?v=t25a66ZIUiM) and Scud Race (http://www.youtube.com/watch?v=Jf_4izU_1UM).

- 23rd January 2011: Bart Trzynadlowski - Small Supermodel WIP: Scud Race Attract Mode 1/2 video. Astute observers may notice something interesting in these videos. The relevant information has been passed along to Naibo.

- 6th January 2011: Naibo - Model-3 Step2 WIP: Daytona USA 2 Power Edition, running on Model-3 Step2 hardware, uses more hardware features for some visual effects than Scud Race does. Daytona 2pe: Smoke, dust and water spray.

- 26th December 2010: CaH4e3 - Advances in Model3 emulation: Demul with GPU plugin gpuDXv3 running Scud Race (Australia).

- 10th November 2010: CaH4e3 - Demul Model3 WIP: Virtua Striker 2 '98.

- 6th November 2010: CaH4e3 - Demul Model3 WIP: Virtual On 2, Dirt Devils, Ski Champ, Harley-Davidson, LeMans 24 and Get Bass.

- 5th November 2010: CaH4e3 - Demul Model3 WIP Start: Virtua Fighter 3, Scud Race and Scud Race Plus.

- 0.135u1: Phil Bennett replaced Model 3 fatalerror() calls with development-friendly logerror() calls. Also allows 'Daytona USA 2 Power Edition' to boot again.

- 0.135: Phil Bennett added missing dependencies for video\model3.c.

- 0.134u4: Naibo Zhang added two-sided polygon flag and back-face culling to Model 3 video emulation.

- 0.133: Aaron Giles added FP registers to PPC debugger interface. Fixed bugs in the x64 back-end that prevented proper 3D rendering for Model 3 games. This fixed LSI53C810 error in Scud Race and pci_device_get_reg error in Virtual On 2.

- 0.132u4: R. Belmont masked CROM bank, fixes missing gfx in several Model 3 games.

- 0.132u3: Phil Bennett fixed Model 3 Real3D DMA source addressing. Model 3 driver updates [R. Belmont]: Interrupt controller improved. Fixed chip IDs for magtruck and von254g. Various notes for working out additional issues.

- 0.132u2: Phil Bennett and R Belmont fixed PPCDRC incorrect instruction checksum order. This fixed hanging in the Sega Model3 sets with GAME_NOT_WORKING flag: bass, getbass,vs215, srally2, sraly2dx, swtrilgy and swtrilga.

- 0.131u3: Guru added Sega Model3 and I/O board README.

- 0.126: Added Revision numbers to Daytona USA 2, Dirt Devils, Fighting Vipers 2, Harley-Davidson, Scud Race Plus, Spikeout, Star Wars Trilogy, Virtua Fighter 3, Virtua Striker 2 '99.1 and Virtual On 2.

- 0.125u5: Added includes\model3.h. Aaron Giles identified and fixed VBLANK bit in Real3D status which was causing the system to hang at startup. Designated fast RAM accesses for work RAM. Changed the 53C810 SCSI controller read/write handles to proper READ8/WRITE8_HANDLER callbacks so they can eventually be used directly.

- 0.125u4: Sega Model 3 changes [Aaron Giles]: Updated to new PowerPC configurations. Reimplemented/centralized interrupt handling. These games are broken for the moment. R. Belmont updated the 53c810 SCSI adapter to pass IRQ state with the IRQ callback.

- 0.124u1: Changed palettesize to 32768 colors.

- 0.123u6: Aaron Giles fixed winwork.c memory leak.

- 0.122u4: Oliver Stöneberg fixed memory leak in the Model 3 driver.

- 0.120u3: Aaron Giles updated model3.c to use the new poly code, and changed much of the low-level implementation to make things easier.

- 0.119u2: R. Belmont added sound hardware and fixed sound ROM loading in Model 3 games. Added 68000 (12MHz) CPU2 and 2x SCSP stereo sound. Fixed cpu2 rom address to $80000.

- 0.114u1: Replaced MPC8240 CPU1 with PPC603.

- 0.113u4: Replaced PPC603 CPU1 with MPC8240.

- 0.112u1: Ville Linde added support for the Motorola MPC8240 to the PowerPC core.

- 0.111u5: Aaron Giles fixed 'Invalid bitmap format' error in Model 3 driver.

- 0.106: Ville Linde fixed crash in the Model3 games introduced by cleaning up empty ROM regions.

- 0.105u3: Added flags dispose to region user3/4.

- 0.103u1: Nathan Woods added PowerPC MMU code, but enabled only for MESS due to breakage of the Model 3 games.

- 0.102u2: Fixed rom names.

- 0.102: Began adding support for SCRIPTS programs to the 53C810 emulation [Nathan Woods, R. Belmont].

- 0.101u5: Added vidhrdw\m3raster.c. Model 3 update [Ville Linde]: Huge update to the video hardware, including: Transparency support (polygons and textures). Nearly perfect rendering order (something we never got right in Supermodel). Parallel lighting. Texture coordinate mirroring.

- 0.101u1: Tomas Karlsson integrated 53C810 into the SCSI framework.

- 0.99u3: Ville Linde fixed recent LSI53C810 update which caused the Model 3 games to crash.

- 0.97u5: Nathan Woods abstracted memory interfaces and improved 53C810 SCSI emulation.

- 0.97u3: Improvements to Sega Model 3 [Ville Linde]: Fixed a bug in the MPC106 emulation (Star Wars Trilogy and Sega Rally 2 are working now).

- 0.96u1: Brad Oliver fixed big endian issues in the Model 3 driver.

- 0.94u5: Model 3 video emulation update [Ville Linde]: Improved rendering on all the games that currently run.

- 12th March 2005: Ville Linde - I finally implemented proper 3D clipping in Model3 using a simple Sutherland-Hodgman type algorithm. I also added perspective correction to the texture-mapping.

- 0.91: Improvements to PPC core / Model 3 driver [Ville Linde]. Some step 2.0 games now show something.

- 19th January 2005: Ville Linde - Fixed a bug in the Real3D DMA emulation. This fixes the 3D graphics in Virtual On 2 and Harley Davidson & L.A. Riders. Virtual On 2 still doesn't have working controls and Harley Davidson has lots of glitches and crashes before getting ingame.

- 0.90u2: Model 3 Update [Ville Linde]. Preliminary polygon emulation and sound emulation (not working yet). Added Epson RTC-72421 emulation. Too much to list. Most Step 1.x games show something now, up to and including full 3D. Fixed 53c810 SCSI single-stepping mode DMA and added memory moves and DMA callback. Better PowerPC interrupt handling. Nested interrupts work properly. Some support for PPC602. Major bugfixes. Added some unimplemented opcodes. Fixed PPC603 CPU1 clock speed and user1/3/4 rom loading in all games.

- 9th January 2005: Ville Linde - Added bilinear filtering and ARGB4444 textures. Bilinear filtering makes the games look much less like crappy PSX games. Virtual On 2 is the first Step 2.x game to start working. The controls and the 3D graphics are not working though. Also the game passes some of its 2D graphics through the security board (hence the broken title screen).

- 3rd January 2005: Ville Linde - Fixed some bugs in the SCSI emulation, and now 3D graphics is also working in Virtua Fighter 3, Sega Bass Fishing, Scud Race and the Step 1.5 versions of Virtua Striker 2 and VS2 '98. There are still a lot of glitches and crashing though.

- 1st January 2005: Ville Linde - Let's start this year with something special... Wireframe for Lost World. Update: Added Z-buffering and texturing (no perspective correction or bilinear filtering yet).

- 20th December 2004: Ville Linde - Fixed a stupid bug in the ROM loading. This fixes both Virtua Fighter 3 and Virtua Striker 2 '98 (Step 1.5). The 2D graphics in VF3 is actually working better than it has ever worked in Supermodel.

- 12th December 2004: Ville Linde - Fixed a ton of bugs in the PPC603 core and fixed the EEPROM among other things. Scud Race now runs normally through the attract mode (without 3D graphics of course).

- 0.89u4: Additional 64-bit integer related cleanups in Model3 / PPC [Lawrence Gold].

- 0.89u3: Model 3 cleanups [R. Belmont]: Added init for mpc105 bridge. Synchronized VS2 CROMs. Fixed missing VROMs in Sega Rally 2 and Virtual On 2. Added VS2 '99 set, fixed incorrect ROMs in vs2v991. Added Virtual On 2 v5.4g, Daytona USA 2 and Dirt Devils sets. Model 3 / PPC updates [Ville Linde]: Major bugfixes to the PPC603 emulation, especially the FPU. Improved MPC105 emulation. Preliminary 53c810 SCSI emulation. Lost World now tries to download everything necessary to the Real3D stuff. Added export version of Scud Race. Lawrence Gold fixed some compiler related issues with >32-bit integers in PPC / Model 3.

- 5th December 2004: R. Belmont - Sorted out all the ROM sets in the Model 3 skeleton driver. Ville Linde added some muscles to the skeleton.

- 0.89u1: Added model3.c driver, machine\model3.c and vidhrdw\model3.c. PPC Core improvements (603 support) for Sega Model 3 [Ville Linde].

- 25th November 2004: R. Belmont - Added with Andrew Gardiner and Ville Linde the 64-bit PowerPC 603 core and a skeleton Sega Model 3 driver (no video emulation, most games barely boot).



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