some fixes
[picodrive.git] / platform / base_readme.txt
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7eed09b3 1#ifdef GP2X\r
01bc6b19 2For help / comments / questions visit GP32X boards at:\r
3http://www.gp32x.com/board/\r
4\r
7eed09b3 5#endif\r
cc68a136 6\r
7About\r
8-----\r
9\r
81fda4e8 10#ifdef PSP\r
11This is yet another Megadrive / Genesis emulator for PSP, but with\r
12Sega CD / Mega CD support. Although it has been originally written having\r
13ARM CPU based devices in mind, it has now been ported to PSP too, by\r
14replacing ARM specific parts with portable C code.\r
15The base code originates from Dave's (fdave, finalburn) PicoDrive 0.30 for\r
16Pocket PC. The Sega/Mega CD code is roughly based on Stephane Dallongeville's\r
17Gens.\r
18#else\r
01bc6b19 19This is yet another Megadrive / Genesis / Sega CD / Mega CD emulator, which\r
20was written having ARM-based handheld devices in mind (such as PDAs,\r
7eed09b3 21smartphones and handheld consoles like GP2X and Gizmondo of course).\r
22The critical parts (renderer, 68K and Z80 cpu interpreters) and some other\r
23random code is written in ARM asm, other code is C. The base code originates\r
24from Dave's (fdave, finalburn) PicoDrive 0.30 for Pocket PC. The Sega/Mega CD\r
25code is roughly based on Stephane Dallongeville's Gens.\r
81fda4e8 26#endif\r
cc68a136 27\r
28\r
29How to make it run\r
30------------------\r
31\r
7eed09b3 32#ifdef GP2X\r
0ce6e5ee 33Copy PicoDrive.gpe, pico940_v2.bin and mmuhack.o to any place in your filesystem\r
cc68a136 34(all 3 files must be in the same directory) and run PicoDrive.gpe.\r
0a051f55 35Then load a ROM and enjoy! ROMs can be in .smd or .bin format and can be zipped.\r
cc68a136 36\r
7eed09b3 37#endif\r
38#ifdef GIZ\r
39First make sure you have homebrew-enabled Service Pack installed. Then copy\r
40PicoDrive.exe and KGSDK.dll to any place in your filesystem (both files must\r
41be in the same directory) and run PicoDrive.exe using the launcher of your choice\r
42(some of them might require renaming PicoDrive.exe to Autorun.exe, placing it in\r
43the root of SD, etc). Then load a ROM and enjoy! ROMs can be placed anywhere, can\r
44be in .smd or .bin format and can be zipped (one ROM per zip).\r
45\r
46#endif\r
81fda4e8 47#ifdef PSP\r
48If you are running a custom firmware, just copy the whole PicoDrive directory to\r
49/PSP/GAME or /PSP/GAMEXXX directory in your memory stick (it shouldn't matter\r
50which one GAME* directory to use).\r
51\r
c6196c0f 52If you are on 1.5, there is a separate KXploited version for it.\r
81fda4e8 53\r
54#endif\r
55Note that this emulator may require some tweaking of configuration settings to run\r
56some games well. For Genesis/MegaDrive, if you have any problems (game does not\r
57boot, sound is glitchy, broken graphics), try to:\r
58 * enable "Accurate timing" (options menu)\r
59#ifdef PSP\r
60 * enable "accurate renderer"\r
61#else\r
62 * enable "16bit accurate renderer"\r
63#endif\r
64 * make sure Z80 is not disabled (in "advanced options" submenu in options).\r
65Some games may need to be reset after adjusting settings.\r
66\r
8ab3e3c1 67For possible Sega/Mega CD problems, see "Other important stuff" section below.\r
cc68a136 68\r
69\r
0a051f55 70How to run Sega/Mega CD games\r
71-----------------------------\r
72\r
73To play any game, you need BIOS files. These files must be copied to the same\r
0ffa8947 74directory as mentioned PicoDrive files. Files can be named as follows:\r
7eed09b3 75\r
0a051f55 76US: us_scd1_9210.bin us_scd2_9306.bin SegaCDBIOS9303.bin\r
77EU: eu_mcd1_9210.bin eu_mcd2_9303.bin eu_mcd2_9306.bin\r
78JP: jp_mcd1_9112.bin jp_mcd1_9111.bin\r
79these files can also be zipped.\r
80\r
81The game must be dumped to ISO format, but BIN can be used too. If you want\r
82CD music, you must use ISO+mp3 files. Audio from BIN files won't be read at\r
7eed09b3 83all. Also BIN files are usually larger, so it's better to use ISO. ISO+mp3\r
84files can be named similarly as for other emus.\r
0a051f55 85Here are some examples:\r
86\r
87SonicCD.iso data track\r
88SonicCD_02.mp3 audio track 1 (CD track 2)\r
89SonicCD_03.mp3\r
90...\r
91\r
92Sonic the Hedgehog CD (US) - Track 01.iso\r
93Sonic the Hedgehog CD (US) - Track 02.mp3\r
94Sonic the Hedgehog CD (US) - Track 03.mp3\r
95...\r
96\r
81fda4e8 97It is very important to have the MP3s encoded at 44kHz sample rate and they\r
98must be stereo, or else they will play too fast/slow or won't play at all.\r
99Be sure NOT to use anything but classic mp3 format (don't use things like\r
100mp3pro).\r
101\r
71de3cd9 102ISO files can also be .cso compressed or zipped (but not mp3 files, as they\r
103are already compressed). CSO will cause slightly longer loading times, and\r
104is not very good for FMV games. Zipping ISOs is not recommened, as it will\r
105cause very long (several minute) loading times, and make some games\r
106unplayable. File naming is similar as with uncompressed ISOs.\r
0a051f55 107Example:\r
108\r
71de3cd9 109SonicCD.cso data track\r
0a051f55 110SonicCD_02.mp3 audio track 1 (CD track 2)\r
111SonicCD_03.mp3\r
112...\r
113\r
cc68a136 114\r
0a051f55 115Other important stuff\r
116---------------------\r
117\r
7eed09b3 118* If your Genesis/MD game hangs or has glitches, this is most likely because\r
81fda4e8 119 "Accurate timing" option is not enabled, or fast renderer is used\r
120 (try the accurate one), or Z80 is disabled in "advanced options".\r
7eed09b3 121* Sega/Mega CD: If the game hangs after Sega logo, you may need to enable\r
122 "better sync" and/or "Scale/Rot. fx" options, found in "Sega/Mega CD options"\r
123 submenu, and then reset the game. Some other games may also require\r
81fda4e8 124 "CDDA audio" and "PCM audio" to be enabled to work (enabled by default).\r
125 Incorrectly named/missing mp3s may also be the cause.\r
126* Sega/Mega CD: If the background music is missing, you might have named your\r
127 MP3s incorrectly. Read "How to run Sega/Mega CD games" section again.\r
71de3cd9 128* Sega/Mega CD: If the game music plays too fast/too slow/out of sync, you have\r
129 encoded your MP3s incorrectly. You will have to re-encode and/or resample them.\r
81fda4e8 130 PicoDrive is not a mp3 player, so all mp3s MUST be encoded at 44.1kHz stereo.\r
131 Badly encoded mp3s can cause various kind of problems, like noises, incorrect\r
132 playback speeds, not repeating music or even prevent game from starting.\r
71de3cd9 133 Some games (like Snatcher) may hang in certain scenes because of this.\r
134 Some mp3 rippers/encoders remove silence and beginning/end of audio tracks,\r
135 what causes audio desyncs and/or mentioned problems.\r
81fda4e8 136* Sega/Mega CD: If your games hangs at the BIOS screen (with planets shown),\r
137 you may be using a bad BIOS dump. Try another from a different source.\r
138* Some Sega/Mega CD games don't use Z80 for anything, but they leave it active,\r
139 so disabling Z80 manually (in advanced options) improves performance.\r
7eed09b3 140#ifdef GP2X\r
141* Sega/Mega CD: if FMV game performance is poor, try adjusting\r
142 "ReadAhead buffer" to something like 2048K.\r
0a051f55 143* When you use both GP2X CPUs, keep in mind that you can't overclock as high as\r
144 when using ARM920 only. For example my GP2X when run singlecore can reach\r
145 280MHz, but with both cores it's about 250MHz. When overclocked too much,\r
6cadc2da 146 it may start hanging and producing random noise, or causing ARM940 crashes\r
147 ("940 crashed" message displayed).\r
7eed09b3 148#endif\r
6cadc2da 149* Use lower bitrate for better performance (96 or 128kbps CBRs recommended).\r
7eed09b3 150#ifdef GP2X\r
e362c573 151* Due to internal implementation mp3s must not be larger that 12MB\r
152 (12582912 bytes). Larger mp3s will not be fully loaded.\r
0a051f55 153* RAM timings option is good for dualcore operation (it is disabled by\r
154 default because it doesn't work on every GP2X, so enable it in advanced\r
155 options).\r
7eed09b3 156#endif\r
157\r
158\r
159Configuration\r
160-------------\r
161\r
162@@0. "Renderer"\r
163#ifdef GP2X\r
1648bit fast:\r
165This enables alternative heavily optimized tile-based renderer, which renders\r
166pixels not line-by-line (this is what accurate renderers do), but in 8x8 tiles,\r
167which is much faster. But because of the way it works it can't render any\r
168mid-frame image changes (raster effects), so it is useful only with some games.\r
169\r
170Other two are accurate line-based renderers. The 8bit is faster but does not\r
171run well with some games like Street Racer.\r
aefb65bc 172\r
7eed09b3 173#endif\r
174#ifdef GIZ\r
175This option allows to switch between 16bit and 8bit renderers. The 8bit one is\r
176a bit faster for some games, but not much, because colors still need to be\r
177converted to 16bit, as this is what Gizmondo requires. It also introduces\r
178graphics problems for some games, so it's best to use 16bit one.\r
aefb65bc 179\r
7eed09b3 180#endif\r
81fda4e8 181#ifdef PSP\r
182This option allows to switch between fast and accurate renderers. The fast one\r
183is much faster, because it draws the whole frame at a time, instead of doing it\r
184line by line, like the accurate one does. But because of the way it works it\r
185can't render any mid-frame image changes (raster effects), so it is useful only\r
186for some games.\r
7eed09b3 187\r
aefb65bc 188#endif\r
7eed09b3 189#ifdef GIZ\r
c77ca79e 190@@0. "Scanline mode"\r
7eed09b3 191This option was designed to work around slow framebuffer access (the Gizmondo's\r
81fda4e8 192main bottleneck) by drawing every other line (even numbered lines only).\r
c77ca79e 193This improves performance greatly, but looses detail.\r
7eed09b3 194\r
195#endif\r
196#ifdef GP2X\r
197@@0. "Scaling"\r
198"hw" means GP2X hardware scaler, which causes no performance loss, but scaled\r
199image looks a bit blocky. "sw" means software scaling, which uses pixel\r
200averaging and may look a bit nicer, but blurry. Horizontal scaling is only for\r
201games which use so called "32 column mode" (256x224 or 256x240), and scales\r
202image width to 320 pixels. Vertical scales height to 240 for games which use\r
203height 224 (most of them).\r
aefb65bc 204\r
7eed09b3 205#endif\r
206#ifdef GIZ\r
207@@0. "Scale low res mode"\r
208The Genesis/Megadrive had several graphics modes, some of which were only 256\r
209pixels wide. This option scales their width to 320 by using simple\r
210pixel averaging scaling. Works only when 16bit renderer is enabled.\r
7eed09b3 211\r
aefb65bc 212#endif\r
7eed09b3 213@@0. "Accurate timing"\r
214This adds some more emulation precision, but slows the emulation down. Without\r
215this option some games do not boot (Red Zone for example), others have sound\r
216problems. This options has no effect for Sega/Mega CD emulation.\r
217\r
218@@0. "Accurate sprites"\r
219This option improves emulation of sprite priorities, it also enables emulation\r
220of sprite collision bit. If you see one sprite being drawn incorrectly above\r
221the other (often seen in Sonic 3D Blast), you can enable this to fix the problem.\r
222This only works with the accurate renderers (see first option).\r
223\r
224@@0. "Show FPS"\r
225Self-explanatory. Format is XX/YY, where XX is the number of rendered frames and\r
226YY is the number of emulated frames per second.\r
227\r
228@@0. "Frameskip"\r
229How many frames to skip rendering before displaying another.\r
230"Auto" is recommended.\r
231\r
232@@0. "Enable sound"\r
233Does what it says. You must enable at least YM2612 or SN76496 (in advanced options,\r
234see below) for this to make sense (already done by default).\r
235\r
236@@0. "Sound Quality"\r
81fda4e8 237#ifdef PSP\r
238Sound sample rate, affects sound quality and emulation performance.\r
23922050Hz setting is the recommended one.\r
240#else\r
241Sound sample rate and stereo mode. Mono is not available in Sega/Mega CD mode.\r
242#endif\r
7eed09b3 243#ifdef GP2X\r
244If you want 44100Hz sound, it is recommended to enable the second core (next option).\r
245\r
246@@0. "Use ARM940 core for sound"\r
247This option causes PicoDrive to use ARM940T core (GP2X's second CPU) for sound \r
248(i.e. to generate YM2612 samples) to improve performance noticeably.\r
249#endif\r
250\r
251@@0. "6 button pad"\r
252If you enable this, games will think that 6 button gamepad is connected. If you\r
253go and reconfigure your keys, you will be able to bind X,Y,Z and mode actions.\r
254\r
255@@0. "Region"\r
256This option lets you force the game to think it is running on machine from the\r
257specified region, or just to set autodetection order. Also affects Sega/Mega CD.\r
258\r
259@@0. "Use SRAM/BRAM savestates"\r
260This will automatically read/write SRAM (or BRAM for Sega/Mega CD) savestates for\r
81fda4e8 261games which are using them. SRAM is saved whenever you enter the menu or exit the\r
7eed09b3 262emulator.\r
263\r
264@@0. "Confirm savestate"\r
265Allows to enable confirmation on savestate saving (to prevent savestate overwrites),\r
266on loading (to prevent destroying current game progress), and on both or none, when\r
267using shortcut buttons (not menu) for saving/loading.\r
268\r
269@@0. "Save slot"\r
270This is a slot number to use for savestates. This can also be configured to be\r
271changed with a button (see "key configuration").\r
272\r
273#ifdef GP2X\r
274@@0. "GP2X CPU clocks"\r
275Here you can change clocks of both GP2X's CPUs. Larger values increase performance.\r
276There is no separate option for the second CPU because both CPUs use the same clock\r
277source. Setting this option to 200 will cause PicoDrive NOT to change GP2X's clocks\r
278at all (this is if you use external program to set clock).\r
279\r
81fda4e8 280#endif\r
281#ifdef PSP\r
282@@0. "CPU/bus clock"\r
283This allows to change CPU and bus clocks for PSP. 333MHz is recommended.\r
284\r
285@@0. "[Display options]"\r
286Enters Display options menu (see below).\r
287\r
7eed09b3 288#endif\r
289@@0. "[Sega/Mega CD options]"\r
290Enters Sega/Mega CD options menu (see below).\r
291\r
292@@0. "[advanced options]"\r
293Enters advanced options menu (see below).\r
294\r
295@@0. "Save cfg as default"\r
296If you save your config here it will be loaded on next ROM load, but only if there\r
297is no game specific config saved (which will be loaded in that case).\r
298You can press left/right to switch to a different config profile.\r
299\r
300@@0. "Save cfg for current game only"\r
301Whenever you load current ROM again these settings will be loaded\r
302#ifdef GP2X\r
303(squidgehack and RAM settings will not take effect until emulator is restarted).\r
304#endif\r
305\r
306\r
307Advanced configuration\r
308----------------------\r
309\r
310Enter [advanced options] in config menu to see these options.\r
311\r
312#ifdef GP2X\r
313@@1. "Gamma correction"\r
314Alters image gamma through GP2X hardware. Larger values make image to look brighter,\r
315lower - darker (default is 1.0).\r
316\r
317@@1. "A_SN's gamma curve"\r
318If this is enabled, different gamma adjustment method will be used (suggested by A_SN\r
319from gp32x boards). Basically it makes difference for dark and bright colors.\r
320\r
321@@1. "Perfect vsync"\r
322This one adjusts the LCD refresh rate to better match game's refresh rate and starts\r
323synchronizing rendering with it. Should make scrolling smoother and eliminate tearing.\r
324\r
325#endif\r
326@@1. "Emulate Z80"\r
327Enables emulation of Z80 chip, which was mostly used to drive the other sound chips.\r
328Some games do complex sync with it, so you must enable it even if you don't use\r
329sound to be able to play them.\r
330\r
331@@1. "Emulate YM2612 (FM)"\r
332This enables emulation of six-channel FM sound synthesizer chip, which was used to\r
333produce sound effects and music.\r
334\r
335@@1. "Emulate SN76496 (PSG)"\r
336This enables emulation of additional sound chip for additional effects.\r
337\r
338Note: if you change sound settings AFTER loading a ROM, you may need to reset\r
339game to get sound. This is because most games initialize sound chips on\r
340startup, and this data is lost when sound chips are being enabled/disabled.\r
341\r
342#ifdef GIZ\r
c77ca79e 343@@1. "Double buffering"\r
344Draws the display to offscreen buffer, and flips it with visible one when done.\r
345Unfortunately this causes serious tearing, unless v-sync is used (next option).\r
346\r
7eed09b3 347@@1. "Wait for V-sync"\r
c77ca79e 348Waits for vertical sync before drawing (or flipping buffers, if previous option\r
349is enabled). Emulation is stopped while waiting, so this causes large performance\r
350hit.\r
7eed09b3 351\r
352#endif\r
353@@1. "gzip savestates"\r
354This will always apply gzip compression on your savestates, allowing you to\r
355save some space and load/save time.\r
356\r
357@@1. "Don't save last used ROM"\r
358This will disable writing last used ROM to config on exit (what might cause SD\r
359card corruption according to DaveC).\r
360\r
361#ifdef GP2X\r
362@@1. "craigix's RAM timings"\r
363This overclocks the GP2X RAM chips, but may cause instability. Recommended if you\r
364use the second core for sound. Needs emulator restart to take effect.\r
365See this thread:\r
366http://www.gp32x.com/board/index.php?showtopic=32319\r
367\r
368@@1. "squidgehack"\r
369Well known way to improve the GP2X performance. You must restart the emulator\r
370for the change of this option to take effect.\r
371\r
372#endif\r
373\r
374Sega/Mega CD options \r
375--------------------\r
376\r
377@@2,@@2,@@2. "USA/EUR/JAP BIOS"\r
378These options just show if your BIOS files were correctly detected by the\r
379emulator (it shows the filename it is using). If so, you can press Start to\r
380test your BIOS.\r
381\r
382@@2. "CD LEDs"\r
383The Sega/Mega CD unit had two blinking LEDs (red and green) on it. This option\r
384will display them on top-left corner of the screen.\r
385\r
386@@2. "CDDA audio (using mp3s)"\r
387This option enables CD audio playback.\r
388\r
389@@2. "PCM audio"\r
390This enables 8 channel PCM sound source. It is required for some games to run,\r
391because they monitor state of this audio chip.\r
392\r
393@@2. "ReadAhead buffer"\r
394#ifdef GP2X\r
395This option is for dealing with slow SD card access in GP2X, which makes FMV\r
396games unplayable. It will allow emulator not to access SD card for longer periods\r
397of time, but it will take more time to fill the buffer.\r
398#endif\r
399#ifdef GIZ\r
400This option can prefetch more data from the CD then read by the game - not really\r
401useful for Gizmondo (this is a workaround for SD access problems on GP2X port).\r
402#endif\r
403\r
404@@2. "Save RAM cart"\r
405Here you can enable 64K RAM cart. Format it in BIOS if you do.\r
406\r
407@@2. "Scale/Rot. fx"\r
408The Sega/Mega CD had scaling/rotation chip, which allows effects similar to\r
409"Mode 7" effects in SNES. Unfortunately emulating it is slow, and very few games\r
410used it, so it's better to disable this option, unless game really needs it.\r
411\r
412@@2. "Better sync"\r
413This option is similar to "Perfect synchro" in Gens. Some games require it to run,\r
414for example most (all?) Wolfteam games, and some other ones. Don't use it for\r
415games which don't need it, it will just slow them down.\r
416\r
417\r
81fda4e8 418#ifdef PSP\r
419Display options\r
420---------------\r
421\r
422@@3. "Scale factor"\r
423This allows to resize the displayed image by using the PSP's hardware. The number is\r
424used to multiply width and height of the game image to get the size of image to be\r
425displayed. If you just want to make it fullscreen, just use "Set to fullscreen"\r
426setting below.\r
427\r
428@@3. "Hor. scale (for low res. games)"\r
429This one works similarly as the previous setting, but can be used to apply additional\r
430scaling horizontally, and is used for games which use lower (256 pixel wide) Gen/MD\r
431resolution.\r
432\r
433@@3. "Hor. scale (for hi res. games)"\r
434Same as above, only for higher (320 pixel wide) resolution using games.\r
435\r
436@@3. "Bilinear filtering"\r
437If this is enabled, PSP hardware will apply bilinear filtering on the resulting image,\r
438making it smoother, but blurry.\r
439\r
440@@3. "Wait for vsync"\r
441Wait for the screen to finish updating before switching to next frame, to avoid tearing.\r
442There are 3 options:\r
443* never: don't wait for vsync.\r
444* sometimes: wait only if emulator is running fast enough.\r
445* always: always wait (causes emulation slowdown).\r
446\r
447@@3. "Set to unscaled centered"\r
448Adjust the resizing options to set game image to it's original size.\r
449\r
450@@3. "Set to fullscreen"\r
451Adjust the resizing options to make the game image fullscreen.\r
452\r
453\r
454#endif\r
7eed09b3 455Key configuration\r
456-----------------\r
457\r
458Select "Configure controls" from the main menu. Then select "Player 1" and you will\r
459see two columns. The left column lists names of Genesis/MD controller buttons, and\r
0ffa8947 460#ifdef GP2X\r
7eed09b3 461the right GP2X ones, which are assigned to them. If you bind 2 different GP2X buttons\r
0ffa8947 462#endif\r
463#ifdef GIZ\r
464the right Giz ones, which are assigned to them. If you bind 2 different Giz buttons\r
465#endif\r
81fda4e8 466#ifdef PSP\r
467the right PSP ones, which are assigned to them. If you bind 2 different PSP buttons\r
468#endif\r
7eed09b3 469to the same action, you will get a combo (which means that you will have to press\r
470both buttons for that action to happen.\r
0a051f55 471\r
472\r
473Cheat support\r
474-------------\r
475\r
476To use GG/patch codes, you must type them into your favorite text editor, one\r
477per line. Comments may follow code after a whitespace. Only GameGenie and\r
478Genecyst patch formats are supported.\r
479Examples:\r
480\r
481Genecyst patch (this example is for Sonic):\r
482\r
48300334A:0005 Start with five lives\r
484012D24:0001 Keep invincibility until end of stage\r
485009C76:5478 each ring worth 2\r
486009C76:5678 each ring worth 3\r
487...\r
488\r
489Game Genie patch (for Sonic 2):\r
490\r
491ACLA-ATD4 Hidden palace instead of death egg in level select\r
492...\r
493\r
494Both GG and patch codes can be mixed in one file.\r
495\r
496When the file is ready, name it just like your ROM file, but with additional\r
497.pat extension, making sure that case matches.\r
498\r
499Examples:\r
500\r
501ROM: Sonic.zip\r
502PATCH FILE: Sonic.zip.pat\r
503\r
504ROM: Sonic 2.bin\r
505PATCH FILE: Sonic 2.bin.pat\r
506\r
507Put the file into your ROMs directory. Then load the .pat file as you would\r
508a ROM. Then Cheat Menu Option should appear in main menu.\r
509\r
510\r
511What is emulated?\r
512-----------------\r
513\r
514Genesis/MegaDrive:\r
81fda4e8 515#ifdef PSP\r
516main 68k @ 7.6MHz: yes, FAME/C core\r
517z80 @ 3.6MHz: yes, CZ80 core\r
518#else\r
0a051f55 519main 68k @ 7.6MHz: yes, Cyclone core\r
520z80 @ 3.6MHz: yes, DrZ80 core\r
81fda4e8 521#endif\r
0a051f55 522VDP: yes, except some quirks not used by games\r
523YM2612 FM: yes, optimized MAME core\r
524SN76489 PSG: yes, MAME core\r
525\r
526Sega/Mega CD:\r
81fda4e8 527#ifdef PSP\r
528another 68k @ 12.5MHz: yes, FAME/C too\r
529#else\r
0a051f55 530another 68k @ 12.5MHz: yes, Cyclone too\r
81fda4e8 531#endif\r
6cadc2da 532gfx scaling/rotation chip (custom ASIC): yes\r
0a051f55 533PCM sound source: yes\r
534CD-ROM controller: yes (mostly)\r
535bram (internal backup RAM): yes\r
536\r
537\r
cc68a136 538Problems / limitations\r
539----------------------\r
540\r
bdec53c9 541* 32x is not emulated.\r
542#ifdef PSP\r
543* SVP is not emulated.\r
544#endif\r
cc68a136 545* Various VDP quirks (window bug, scroll size 2, etc.) are not emulated,\r
0a051f55 546 as very few games use this (if any at all).\r
bdec53c9 547* The emulator is not 100% accurate, so some things may not work as expected.\r
cc68a136 548\r
549\r
550Credits\r
551-------\r
552\r
110df09c 553This emulator is made of the code from following people/projects:\r
cc68a136 554\r
7eed09b3 555notaz\r
81fda4e8 556GP2X, UIQ, PSP, Gizmondo ports, CPU core hacks,\r
7eed09b3 557lots of additional coding (see changelog).\r
558Homepage: http://notaz.gp2x.de/\r
559\r
cc68a136 560Dave\r
561Cyclone 68000 core, Pico emulation library\r
562Homepage: http://www.finalburn.com/\r
563\r
81fda4e8 564#ifdef PSP\r
565Chui\r
566FAME/C 68k interpreter core\r
567(based on C68K by Stephane Dallongeville)\r
568\r
569Stephane Dallongeville (written), NJ (optimized)\r
570CZ80 Z80 interpreter core\r
571\r
572#else\r
cc68a136 573Reesy & FluBBa\r
81fda4e8 574DrZ80, the Z80 interpreter written in ARM assembly.\r
cc68a136 575Homepage: http://reesy.gp32x.de/\r
576\r
81fda4e8 577#endif\r
578Tatsuyuki Satoh, Jarek Burczynski, MAME development\r
cc68a136 579software implementation of Yamaha FM sound generator\r
580\r
81fda4e8 581MAME development\r
582Texas Instruments SN76489 / SN76496 programmable tone/noise generator\r
cc68a136 583Homepage: http://www.mame.net/\r
584\r
0a051f55 585Stephane Dallongeville\r
586Gens, MD/Mega CD/32X emulator. Most Sega CD code is based on this emu.\r
81fda4e8 587#ifdef PSP\r
588\r
589people @ ps2dev.org forums / PSPSDK crew\r
590libaudiocodec code (by cooleyes)\r
591other sample code\r
592#else\r
0a051f55 593\r
594Helix community\r
595Helix mp3 decoder\r
81fda4e8 596#endif\r
0a051f55 597\r
cc68a136 598\r
599Additional thanks\r
600-----------------\r
601\r
602* Charles MacDonald (http://cgfm2.emuviews.com/) for old but still very useful\r
603 info about genesis hardware.\r
cc68a136 604* Steve Snake for all that he has done for Genesis emulation scene.\r
bdec53c9 605* Tasco Deluxe for his reverse engineering work on SVP and some mappers.\r
cc68a136 606* Bart Trzynadlowski for his SSFII and 68000 docs.\r
607* Haze for his research (http://haze.mameworld.info).\r
608* Mark and Jean-loup for zlib library.\r
7eed09b3 609* ketchupgun for the skin.\r
610#ifdef GP2X\r
cc68a136 611* rlyeh and all the other people behind the minimal library.\r
612* Squidge for his famous squidgehack(tm).\r
613* Dzz for his ARM940 sample code.\r
614* GnoStiC & Puck2099 for USB joystick support.\r
615* Hermes PS2R, god_at_hell for the CpuCtrl library.\r
a4f0cc86 616* A_SN for his gamma code.\r
cc68a136 617* craigix for supplying the GP2X hardware and making this port possible.\r
6cadc2da 618* Alex for the icon.\r
a4f0cc86 619* All the people from gp32x boards for their support.\r
7eed09b3 620#endif\r
621#ifdef GIZ\r
622* Kingcdr's for the SDK and Reesy for the DLL and sound code.\r
623* jens.l for supplying the Gizmondo hardware and making this port possible.\r
624#endif\r
625#ifdef UIQ\r
cc68a136 626* Peter van Sebille for his various open-source Symbian projects to learn from.\r
627* Steve Fischer for his open-source Motorola projects.\r
628* The development team behind "Symbian GCC Improvement Project"\r
629 (http://www.inf.u-szeged.hu/symbian-gcc/) for their updated pre-SymbianOS9\r
630 compile tools.\r
631* AnotherGuest for all his Symbian stuff and support.\r
632* Inder for the icons.\r
7eed09b3 633#endif\r
634* Anyone else I forgot. You know who you are.\r
cc68a136 635\r
636\r
637Changelog\r
638---------\r
bdec53c9 6391.40\r
640 + Added support for SVP (Sega Virtua Processor) to emulate Virtua Racing,\r
641 wrote ARM recompiler and some HLE code for VR.\r
642 * Changed config file format, files are now human-readable. Game specific\r
643 configs are now held in single file (but old game config files are still\r
644 read).\r
d6114368 645 * Fixed a bug where some key combos didn't work as expected.\r
646 * Fixed a regression in renderer (some graphic glitches in rare cases).\r
da310283 647 * Adjusted fast rernderer to work with more games, including VR.\r
d6114368 648 * Fixed a problem where SegaCD RAM cart data was getting lost on reset.\r
bdec53c9 649\r
2445b7cb 6501.35b\r
651 * PSP: mp3 code should no longer fail on 1.5 firmware.\r
652 + PSP: added gamma adjustment option.\r
7d0143a2 653 + Added .cso ISO format support. Useful for non-FMV games.\r
654 * It is now possile to force a region after the ROM is loaded.\r
2445b7cb 655 * Fixed a sram bug in memhandlers (fixes Shining in the Darkness saves).\r
656 * PSP: fixed another bug in memhanlers, which crashed the emu for some games\r
7d0143a2 657 (like NBA Jam and NHL 9x).\r
4a32f01f 658 + PSP: added suspend/resume handling for Sega CD games.\r
659 + GP2X: added additional low volume levels for my late-night gaming sessions\r
660 (in stereo mode only).\r
661 + GP2X: added "fast forward" action in key config. Not recommended to use for\r
662 Sega CD, may case problems there.\r
7d0143a2 663 * Some other small tweaks I forgot about.\r
2445b7cb 664\r
c6196c0f 6651.35a\r
666 * PSP: fixed a bug which prevented to load any ROMs after testing the BIOS.\r
667 * PSP: fixed incorrect CZ80 memory map setup, which caused Z80 crashes and\r
668 graphics corruption in EU Mega CD model1 BIOS menus.\r
669 + PSP: added additional "set to 4:3 scaled" display option for convenience.\r
4a32f01f 670 + PSP: Added an option to disable frame limitter (works only with non-auto frameskip).\r
c6196c0f 671\r
81fda4e8 6721.35\r
673 + PSP port added. Lots of new code for it. Integrated modified FAME/C, CZ80 cores.\r
674 + Some minor generic optimizations.\r
675 * Patched some code which was crashing under PSP, but was working in GP2X/Giz\r
676 (although it should have crashed there too).\r
677 * Readme updated.\r
678\r
1dceadae 6791.34\r
7eed09b3 680 + Gizmondo port added.\r
e849512f 681 + Some new optimizations in memory handlers, and for shadow/hilight mode.\r
682 + Added some hacks to make more games work without enabling "accurate timing".\r
e849512f 683 * Adjusted timing for "accurate timing" mode and added preliminary VDP FIFO\r
684 emulation. Fixes Double Dragon 2, tearing in Chaos Engine and some other games.\r
5f8c85be 685 * Fixed a few games not having sound at startup.\r
1dceadae 686 * Updated serial EEPROM code to support more games. Thanks to EkeEke for\r
687 providing info about additional EEPROM types and game mappers.\r
688 * The above change fixed hang of NBA Jam.\r
45499284 689 * Minor adjustments to control configurator.\r
e849512f 690\r
4e8a534c 6911.33\r
692 * Updated Cyclone core to 0.0088.\r
693 + Added A r k's usbjoy fix.\r
694 + Added "perfect vsync" option, which adjusts GP2X LCD refresh rate and syncs\r
695 emulation to it to eliminate tearing and ensure smoothest scrolling possible.\r
696 + Added an option to use A_SN's camma curve for gamma correction (improves dark\r
697 and bright color display for mk2s).\r
e362c573 698 * Sometimes stray sounds were played after loading a savestate. Fixed.\r
699 * Fixed a problem where >6MB mp3s were corrupted in memory (sound glitches in\r
700 Snatcher).\r
701 * PD no longer overwrites video player code in memory, video player now can be\r
767bf1ad 702 used after exiting PicoDrive.\r
4e8a534c 703 * Fixed a bug which was causing Sonic 3 code to deadlock in some rare conditions\r
704 if "accurate timing" was not enabled.\r
705 * Fixed support for large hacked ROMs like "Ultimate Mortal Kombat Trilogy".\r
706 Upto 10MB hacked ROMs are supported now.\r
d524c827 707 + Config profiles added (press left/right when saving config).\r
767bf1ad 708 * Changed key configuration behavior to the one from gpfce (should be more\r
d524c827 709 intuitive).\r
a12e0116 710 + Added some skinning capabilities to the menu system with default skin by\r
a4f0cc86 711 ketchupgun. Delete skin directory if you want old behaviour.\r
767bf1ad 712 * Some other little tweaks I forgot about.\r
e362c573 713\r
2433f409 7141.32\r
715 + Added some new scaling options.\r
6cadc2da 716 + Added ability to reload CD images while game is running (needed for games\r
721cd396 717 with multiple CDs, like Night Trap).\r
6cadc2da 718 + Added RAM cart emulation.\r
2433f409 719 * Fixed DMA timing emulation (caused lock-ups for some genesis games).\r
720 * Idle loop detection was picking up wrong code and causing glitches, fixed.\r
721 * The ym2612 code on 940 now can handle multiple updates per frame\r
722 (fixes Thunger Force III "seiren" level drums for example).\r
723 * Memory handlers were ignoring some writes to PSG chip, fixed (missing sounds in\r
724 Popful Mail, Silpheed).\r
721cd396 725 * Improved z80 timing, should fix some sound problems.\r
726 * Fixed a bug with sram register (fixes Phantasy Star 4).\r
6cadc2da 727 * ROM loader was incorrectly identifying some ROMs as invalid. Fixed.\r
721cd396 728 * Added code for PRG ram write protection register (Dungeon Explorer).\r
46969540 729 * The memory mode register change in 1.31 was unsafe and caused some glitches in\r
730 AH-3 Thunderstrike. Fixed.\r
731 * Fixed a file descriptor leak.\r
6cadc2da 732 * Updated documentation, added Gmenu2x manual.\r
2433f409 733\r
c008977e 7341.31\r
735 * Changed the way memory mode register is read (fixes Lunar 2, broken in 1.30).\r
736 * Fixed TAS opcode on sub-68k side (fixes Batman games).\r
737 * File browser now filters out mp3s, saves and some other files, which are not ROMS.\r
738\r
782f8f22 7391.30\r
0a051f55 740 + ISO files now can be zipped. Note that this causes VERY long loading times.\r
741 + Added data pre-buffering support, this allows to reduce frequency of short pauses\r
4ff2d527 742 in FMV games (caused by SD access), but makes those pauses longer.\r
0a051f55 743 * Fixed PCM DMA transfers (intro FMV in Popful Mail).\r
7336a99a 744 + Properly implemented "decode" data transformation (Jaguar XJ220).\r
745 * Integrated "better sync" code into cyclone code, what made this mode much faster.\r
746 * Fixed a bug related to game specific config saving.\r
4ff2d527 747 * Frameskipper was skipping sound processing, what caused some audio desyncs. Fixed.\r
48e8482f 748 * Fixed reset not working for some games.\r
a4030801 749 + New assembly optimized memory handlers for CD (gives at least a few fps).\r
782f8f22 750 Also re-enabled all optimizations from 0.964 release.\r
751 + New idle-loop detection code for sub-68k. Speeds up at least a few games.\r
0a051f55 752\r
7531.201\r
754 + Added basic cheat support (GameGenie and Genecyst patches).\r
755\r
7561.20\r
757 * Fixed a long-standing problem in audio mixing code which caused slight distortions\r
758 at lower sample rates.\r
759 * Changed the way 920 and 940 communicates (again), should be more reliable and give\r
760 slight performance increase.\r
761 * Some optimizations in audio mixing code.\r
762 * Some menu changes (background added, smaller font in ROM browser, savestate loader\r
763 now can select slots).\r
764 + 1M mode DMA transfers implemented (used by FMV games like Night Trap and Sewer Shark).\r
765 + Games now can run code from WORD RAM in 1M mode (fixes Adventures of Willy Beamish).\r
766 + "Cell arrange" address mapping is now emulated (Heart of the alien).\r
767 + "Color numeric operation" is now emulated (text in Lunar 2, Silpheed intro graphics).\r
768 + "Better sync" option added (prevents some games from hanging).\r
769\r
7701.14\r
771 + Region autodetection now can be customized.\r
772 * When CDDA music tracks changed, old buffer contents were incorrectly played. Fixed.\r
773 * BRAM is now automatically formatted (no need to enter BIOS menu and format any more).\r
774 * Games now can be reset, CDDA music no longer breaks after loading another ISO.\r
775 * Fixed a race condition between 920 and 940 which sometimes caused CDDA music not to play.\r
776 + Savestates implemented for Sega/Mega CD.\r
777 + PCM sound added.\r
778 * Some mixer code rewritten in asm. 22kHz and 11kHz sound rates are now supported in\r
779 Mega CD mode (but mp3s must still be 44kHz stereo).\r
780 + Timer emulation added.\r
781 * CDC DMA tansfers fixed. Snatcher and probably some more games now boot.\r
782 * 2M word RAM -> VDP transfers fixed, no more corruption in Ecco and some other games.\r
783\r
7841.10\r
785 + GP2X: Added experimental Sega CD support.\r
786 + GP2X: Added partial gmv movie playback support.\r
787\r
cc68a136 7880.964\r
789 * GP2X: Fixed a sound buffer underflow issue on lower sample rate modes, which was\r
790 happening for NTSC games and causing sound clicks.\r
791 * GP2X: Redone key config to better support USB joysticks (now multiple joysticks\r
792 should be useable and configurable).\r
793 + GP2X: Added save confirmation option.\r
794 + GP2X: Added 940 CPU crash detection.\r
795 + ALL: UIQ3 port added.\r
796\r
7970.963\r
798 * GP2X: Gamma-reset-on-entering-menu bug fixed.\r
799 * GP2X: Recompiled PicoDrive with gcc profiling option set as described here:\r
800 http://www.gp32x.com/board/index.php?showtopic=28490\r
801\r
8020.962\r
803 * GP2X: Fixed an issue with incorrect sounds in some games when dualcore operation\r
804 was enabled (for example punch sound in SOR).\r
805 * GP2X: Limited max volume to 90, because higher values often cause distortions.\r
806 * GP2X: Fixed a bug with lower res scaling.\r
807 * GP2X: Gamma is now reset on exit.\r
808\r
8090.96\r
810 * ALL: Severely optimized MAME's YM2612 core, part of it is now rewritten in asm.\r
811 + GP2X: The YM2612's code now can be run in GP2X's ARM940T CPU, what causes large\r
812 performance increase.\r
813 * ALL: Accurate renderers are slightly faster now.\r
814 + GP2X: Using quadruple buffering instead of doublebuffer now, also updated\r
815 framelimitter, this should eliminate some scrolling and tearing problems.\r
816 * GP2X: Fixed some flickering issues of 8bit accurate renderer.\r
817 + GP2X: craigix's RAM timings now can be enabled in the menu (see advanced options).\r
818 + GP2X: Added ability to save config for specific games only.\r
819 + GP2X: Gamma control added (using GP2X's hardware capabilities for this).\r
820 * GP2X: Volume keys are now configurable.\r
821 + GP2X: GnoStiC added USB joystick support, I made it possible to use it for\r
822 player 2 control (currently untested).\r
823 * GP2X: squidgehack is now applied through kernel module (cleaner way).\r
824\r
8250.95\r
826 * ALL: Fixed a bug in sprite renderer which was causing slowdowns for some games.\r
827 + GP2X: Added command line support\r
828 + GP2X: Added optional hardware scaling for lower-res games like Shining Force.\r
829 * ALL: Sound chips are now sampled 2 times per frame. This fixed some games which\r
830 had missing sounds (Vectorman 2 1st level, Thunder Force 3 water level,\r
831 etc.).\r
832 + ALL: Added another accurate 8-bit renderer which is slightly faster and made it\r
833 default.\r
834\r
8350.945\r
836 + GP2X: Added frame limiter for frameskipped modes.\r
837 * GP2X: Increased brightness a bit (unused pixel bits now also contain data).\r
838 * GP2X: Suidgehack was not applied correctly (was applied before allocating some\r
839 high memory and had no effect).\r
840\r
8410.94\r
842 + Added GP2X port.\r
843 * Improved interrupt timing, Mazin Saga and Burning Force now works.\r
844 * Rewritten renderer code to better suit GP2X, should be faster on other\r
845 ports too.\r
846 + Added support for banking used by 12-in-1 and 4-in-1 ROMs (thanks Haze).\r
847 + Added some protection device faking, used by some unlicensed games like\r
848 Super Bubble Bobble, King of Fighters, Elf Wor, ... (thanks to Haze again)\r
849 + Added primitive Virtua Racing SVP faking, so menus can be seen now.\r
850\r
8510.93\r
852 * Fixed a problem with P900/P910 key configuration in FC mode.\r
853 * Improved shadow/hilight mode emulation. Still not perfect, but should be\r
854 enough for most games.\r
855 + Save state slots added.\r
856 + Region selector added.\r
857\r
8580.92\r
859 VDP changes:\r
860 * VDP emulation is now more accurate (fixes flickering in Chase HQ II,\r
861 Super Hang-On and some other problems in other games).\r
862 * HV counter emulation is now much more accurate. Fixes the Asterix games,\r
863 line in Road Rash 3, etc.\r
864 * Minor sprite and layer scroll masking bugs fixed.\r
865 + Added partial interlace mode renderer (Sonic 2 vs mode)\r
866 * Fixed a crash in both renderers when certain size window layers were used.\r
867 + Added emulation of shadow/hilight operator sprites. Other shadow/hilight\r
868 effects are still unemulated.\r
869 + Sprite emulation is more accurate, sprite limit is emulated.\r
870 + Added "accurate sprites" option, which always draws sprites in correct\r
871 order and emulates sprite collision bit, but is significantly slower.\r
872\r
873 Emulation changes:\r
874 * Improved interrupt handling, added deferred interrupt emulation\r
875 (Lemmings, etc).\r
876 + Added serial EEPROM SRAM support (Wonder Boy in Monster World,\r
877 Megaman - The Wily Wars and many EA sports games like NBA Jam).\r
878 + Implemented ROM banking for Super Street Fighter II - The New Challengers\r
879 * Updated to the latest version of DrZ80 core, integrated memory handlers\r
880 in it for better performance. A noticeable performance increase, but save\r
881 states may not work from the previous version (you can only use them with\r
882 sound disabled in that case).\r
883 + SRAM word read handler was using incorrect byte order, fixed.\r
884\r
885 Changes in Cyclone 0.0086:\r
886 + Added missing CHK opcode handler (used by SeaQuest DSV).\r
887 + Added missing TAS opcode handler (Gargoyles,Bubba N Stix,...). As in real genesis,\r
888 memory write-back phase is ignored (but can be enabled in config.h if needed).\r
889 + Added missing NBCD and TRAPV opcode handlers.\r
890 + Added missing addressing mode for CMP/EOR.\r
891 + Added some minor optimizations.\r
892 - Removed 216 handlers for 2927 opcodes which were generated for invalid addressing modes.\r
893 + Fixed flags for ASL, NEG, NEGX, DIVU, ADDX, SUBX, ROXR.\r
894 + Bugs fixed in MOVEP, LINK, ADDQ, DIVS handlers.\r
895 * Undocumented flags for CHK, ABCD, SBCD and NBCD are now emulated the same way as in Musashi.\r
896 + Added Uninitialized Interrupt emulation.\r
897 + Altered timing for about half of opcodes to match Musashi's.\r
898\r
8990.80\r
900 * Nearly all VDP code was rewritten in ARM asm. Gives ~10-25% performance\r
901 increase (depends on game).\r
902 * Optimized 32-column renderer not to render tiles offscreen, games which\r
903 use 32-column display (like Shining Force) run ~50% faster.\r
904 + Added new "Alternative renderer", which gives another ~30-45% performance\r
905 increase (in addition to mentioned above), but works only with some games,\r
906 because it is missing some features (it uses tile-based renderering\r
907 instead of default line-based and disables H-ints).\r
908 + Added "fit2" display mode for all FC gamers. It always uses 208x146 for\r
909 P800 and 208x208 for all other phones.\r
910 + Added volume control for Motorolas (experimental).\r
911\r
912 VDP changes:\r
913 + Added support for vertical window (used by Vapor Trail, Mercs, GRIND\r
914 Stormer and others).\r
915 + Added sprite masking (hiding), adds some speed.\r
916 + Added preliminary H counter emulation. Comix Zone and Sonic 3D Blast\r
917 special stage are now playable.\r
918 + Added column based vertical scrolling (Gunstar Heroes battleship level,\r
919 Sonic and Knuckles lava boss, etc).\r
920\r
921 Emulation changes:\r
922 + Re-added and improved Z80 faking when Z80 is disabled. Many games now can\r
923 be played without enabling Z80 (Lost Vikings, Syndicate, etc), but some\r
924 still need it (International Superstar Soccer Deluxe).\r
925 * Improved ym2612 timers, Outrun music plays at correct speed, voices in\r
926 Earthworm Jim play better, more games play sound.\r
927 * I/O registers now remember their values (needed for Pirates! Gold)\r
928 + Added support for 6 button pad.\r
929\r
930 Changes in Cyclone 0.0083wip:\r
931 + Added missing CHK opcode (used by SeaQuest DSV).\r
932 + Added missing TAS opcode (Gargoyles). As in real genesis, write-back phase\r
933 is ignored (but is enabled for other systems).\r
934\r
935 Backported stuff from Snes9x:\r
936 * Fixed Pxxx jog up/down which were not working in game.\r
937 + Added an option to gzip save states to save space.\r
938 + The emulator now pauses whenever it is loosing focus, so it will now pause\r
939 when alarm/ponecall/battery low/... windows come up.\r
940 - Removed 'pause on phonecall' feature, as it is no longer needed.\r
941 + Video fix for asian A1000s.\r
942\r
9430.70\r
944 * Started using tools from "Symbian GCC Improvement Project", which give\r
945 considerable speed increase (~4fps in "center 90" mode).\r
946 * Rewrote some drawing routines in ARM assembly (gives ~6 more fps in\r
947 "center 90" mode).\r
948 * Minor improvement to 0 and 180 "fit" modes. Now they look slightly better\r
949 and are faster.\r
950 * Minor stability improvements (emulator is less likely to crash).\r
951 + Added some background for OSD text for better readability.\r
952 + Added Pal/NTSC detection. This is needed for proper sound speed.\r
953 + Implemented Reesy's DrZ80 Z80 emu. Made some changes to it with hope to make\r
954 it faster.\r
955 + Implemented ym2612 emu from the MAME project. Runs well but sometimes sounds\r
956 a bit weird. Could be a little faster, so made some changes too.\r
957 + Implemented SN76489 emu from the MAME project.\r
958 + Added two separate sound output methods (mediaserver and cmaudiofb) with\r
959 autodetection (needs testing).\r
960 * Fixed VDP DMA fill emulation (as described in Charles MacDonald's docs),\r
961 fixes Contra and some other games.\r
962\r
9630.301\r
964 Launcher:\r
965 * Launcher now starts emulation process from current directory,\r
966 not from hardcoded paths.\r
967 * Improved 'pause on call' feature, should hopefully work with Motorola phones.\r
968\r
9690.30\r
970 Initial release.\r
971\r
972\r
973Disclaimer\r
974----------\r
975\r
976THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" \r
977AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE \r
978IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE \r
979ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE \r
980LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR \r
981CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF \r
982SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS \r
983INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN \r
984CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) \r
985ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE \r
986POSSIBILITY OF SUCH DAMAGE. \r
0a051f55 987\r
988SEGA/Genesis/MegaDrive/SEGA-CD/Mega-CD/32X are trademarks of\r
989Sega Enterprises Ltd.\r
990\r