d183a522 |
1 | #\r |
2 | PicoDrive 1.xx\r |
cc68a136 |
3 | \r |
4 | About\r |
5 | -----\r |
6 | \r |
39e5b215 |
7 | This is yet another Megadrive / Genesis / Sega CD / Mega CD / 32X / SMS\r |
8 | emulator, which was written having ARM-based handheld devices in mind\r |
92dfd9af |
9 | (such as smartphones and handheld consoles like GP2X and Pandora).\r |
10 | \r |
39e5b215 |
11 | The emulator is heavily optimized for ARM, features assembly cores for\r |
12 | 68k, Z80 and VDP chip emulation, also has dynamic recompilers for SH2 and\r |
13 | SSP16 (for 32X and SVP emulation). It was started by Dave (aka fdave,\r |
14 | finalburn author) as basic Genesis/Megadrive emulator for Pocket PC,\r |
92dfd9af |
15 | then taken over and expanded by notaz.\r |
cc68a136 |
16 | \r |
a39b7867 |
17 | PicoDrive is the first emulator ever to properly emulate Virtua Racing and\r |
18 | it's SVP chip.\r |
19 | \r |
cc68a136 |
20 | \r |
21 | How to make it run\r |
22 | ------------------\r |
23 | \r |
7eed09b3 |
24 | #ifdef GP2X\r |
d183a522 |
25 | Extract all files to some directory on your SD and run PicoDrive.gpe from your\r |
39e5b215 |
26 | GP2X/Wiz/Caanoo menu. The same .gpe supports GP2X F100/F200, Wiz and Caanoo,\r |
27 | there is no need to use separate versions.\r |
0a051f55 |
28 | Then load a ROM and enjoy! ROMs can be in .smd or .bin format and can be zipped.\r |
d183a522 |
29 | Sega/Mega CD images can be in ISO/CSO+MP3/WAV or CUE+BIN formats (read below\r |
30 | for more details).\r |
7eed09b3 |
31 | #endif\r |
32 | #ifdef GIZ\r |
33 | First make sure you have homebrew-enabled Service Pack installed. Then copy\r |
34 | PicoDrive.exe and KGSDK.dll to any place in your filesystem (both files must\r |
35 | be in the same directory) and run PicoDrive.exe using the launcher of your choice\r |
36 | (some of them might require renaming PicoDrive.exe to Autorun.exe, placing it in\r |
37 | the root of SD, etc). Then load a ROM and enjoy! ROMs can be placed anywhere, can\r |
38 | be in .smd or .bin format and can be zipped (one ROM per zip).\r |
7eed09b3 |
39 | #endif\r |
81fda4e8 |
40 | #ifdef PSP\r |
41 | If you are running a custom firmware, just copy the whole PicoDrive directory to\r |
42 | /PSP/GAME or /PSP/GAMEXXX directory in your memory stick (it shouldn't matter\r |
43 | which one GAME* directory to use).\r |
44 | \r |
c6196c0f |
45 | If you are on 1.5, there is a separate KXploited version for it.\r |
81fda4e8 |
46 | #endif\r |
e59af1c9 |
47 | #ifdef PANDORA\r |
48 | Just copy the .pnd to <sd card>/pandora/menu or <sd card>/pandora/desktop.\r |
49 | #endif\r |
02ba8788 |
50 | \r |
d183a522 |
51 | This emulator has lots of options with various tweaks (for improved speed mostly),\r |
92dfd9af |
52 | but it should have best compatibility in it's default config. If suddenly you\r |
d183a522 |
53 | start getting glitches or change something and forget what, use "Restore defaults"\r |
54 | option.\r |
cc68a136 |
55 | \r |
56 | \r |
0a051f55 |
57 | How to run Sega/Mega CD games\r |
58 | -----------------------------\r |
59 | \r |
92dfd9af |
60 | To play any CD game, you need BIOS files. These files must be copied to\r |
e59af1c9 |
61 | #ifdef PANDORA\r |
92dfd9af |
62 | <sd card>/pandora/appdata/picodrive/ directory\r |
e59af1c9 |
63 | (if you run PicoDrive once it will create that directory for you).\r |
64 | #else\r |
d183a522 |
65 | the same directory as PicoDrive files.\r |
02ba8788 |
66 | #endif\r |
67 | Files can be named as follows:\r |
7eed09b3 |
68 | \r |
0a051f55 |
69 | US: us_scd1_9210.bin us_scd2_9306.bin SegaCDBIOS9303.bin\r |
70 | EU: eu_mcd1_9210.bin eu_mcd2_9303.bin eu_mcd2_9306.bin\r |
71 | JP: jp_mcd1_9112.bin jp_mcd1_9111.bin\r |
72 | these files can also be zipped.\r |
73 | \r |
92dfd9af |
74 | The game must be dumped to CUE+BIN or CUE+ISO format.\r |
75 | ISO/CSO+MP3/WAV is also supported, but may cause problems.\r |
76 | When using CUE/BIN, you must load .cue file from the menu, or else\r |
77 | the emu will not find audio tracks.\r |
0a051f55 |
78 | \r |
cc68a136 |
79 | \r |
0a051f55 |
80 | Other important stuff\r |
81 | ---------------------\r |
82 | \r |
92dfd9af |
83 | * Sega/Mega CD: If the background music is missing, the CD image format may be\r |
84 | wrong. Currently .cue/bin is recommended. Be aware that there are lots of bad\r |
85 | dumps on the web, and some use mp3 format for audio, which often causes\r |
86 | problems (see below).\r |
87 | * While iso/mp3 format is supported, it's not recommended to use.\r |
88 | Some of many problems with mp3 are listed below:\r |
89 | * MP3s may be named incorrectly and will not play.\r |
90 | * The game music may play too fast/too slow/out of sync, which means they\r |
91 | are encoded incorrectly. PicoDrive is not a mp3 player, so all mp3s MUST\r |
92 | be encoded at 44.1kHz stereo.\r |
93 | * Sega/Mega CD: If your games hang at the BIOS screen (with planets shown),\r |
94 | you may be using a bad BIOS dump. Try another from a different source,\r |
95 | like dumping it from your own console.\r |
7eed09b3 |
96 | #ifdef GP2X\r |
92dfd9af |
97 | * What using mp3s, use lower bitrate for better performance (96 or 128kbps\r |
98 | CBRs recommended).\r |
d183a522 |
99 | * GP2X F100/F200: When you use both GP2X CPUs, keep in mind that you can't\r |
100 | overclock as high as when using ARM920 only. For example my GP2X when run\r |
101 | singlecore can reach 280MHz, but with both cores it's about 250MHz. When\r |
102 | overclocked too much, it may start hanging and producing random noise, or\r |
103 | causing ARM940 crashes ("940 crashed" message displayed).\r |
104 | * GP2X F100/F200: Due to internal implementation mp3s must not be larger that\r |
105 | 12MB (12582912 bytes). Larger mp3s will not be fully loaded.\r |
7eed09b3 |
106 | #endif\r |
107 | \r |
108 | \r |
109 | Configuration\r |
110 | -------------\r |
111 | \r |
d183a522 |
112 | @@0. "Save slot"\r |
113 | This is a slot number to use for savestates, when done by a button press outside\r |
114 | menu. This can also be configured to be changed with a button\r |
115 | (see "key configuration").\r |
7eed09b3 |
116 | \r |
d183a522 |
117 | @@0. "Frameskip"\r |
118 | How many frames to skip rendering before displaying another.\r |
119 | "Auto" is recommended.\r |
aefb65bc |
120 | \r |
d183a522 |
121 | @@0. "Region"\r |
122 | This option lets you force the game to think it is running on machine from the\r |
123 | specified region, or just to set autodetection order. Also affects Sega/Mega CD.\r |
7eed09b3 |
124 | \r |
7eed09b3 |
125 | @@0. "Show FPS"\r |
126 | Self-explanatory. Format is XX/YY, where XX is the number of rendered frames and\r |
127 | YY is the number of emulated frames per second.\r |
128 | \r |
7eed09b3 |
129 | @@0. "Enable sound"\r |
130 | Does what it says. You must enable at least YM2612 or SN76496 (in advanced options,\r |
131 | see below) for this to make sense (already done by default).\r |
132 | \r |
133 | @@0. "Sound Quality"\r |
81fda4e8 |
134 | #ifdef PSP\r |
135 | Sound sample rate, affects sound quality and emulation performance.\r |
136 | 22050Hz setting is the recommended one.\r |
137 | #else\r |
138 | Sound sample rate and stereo mode. Mono is not available in Sega/Mega CD mode.\r |
139 | #endif\r |
7eed09b3 |
140 | \r |
141 | @@0. "Confirm savestate"\r |
142 | Allows to enable confirmation on savestate saving (to prevent savestate overwrites),\r |
143 | on loading (to prevent destroying current game progress), and on both or none, when\r |
144 | using shortcut buttons (not menu) for saving/loading.\r |
145 | \r |
81fda4e8 |
146 | @@0. "[Display options]"\r |
147 | Enters Display options menu (see below).\r |
148 | \r |
7eed09b3 |
149 | @@0. "[Sega/Mega CD options]"\r |
150 | Enters Sega/Mega CD options menu (see below).\r |
151 | \r |
39e5b215 |
152 | @@0. "[32X options]"\r |
153 | Enters 32X options menu (see below).\r |
154 | \r |
d183a522 |
155 | @@0. "[Advanced options]"\r |
7eed09b3 |
156 | Enters advanced options menu (see below).\r |
157 | \r |
158 | @@0. "Save cfg as default"\r |
159 | If you save your config here it will be loaded on next ROM load, but only if there\r |
160 | is no game specific config saved (which will be loaded in that case).\r |
161 | You can press left/right to switch to a different config profile.\r |
162 | \r |
163 | @@0. "Save cfg for current game only"\r |
39e5b215 |
164 | Whenever you load current ROM again these settings will be loaded.\r |
7eed09b3 |
165 | \r |
d183a522 |
166 | @@0. "Restore defaults"\r |
167 | Restores all options (except controls) to defaults.\r |
7eed09b3 |
168 | \r |
7eed09b3 |
169 | \r |
d183a522 |
170 | Display options\r |
171 | ---------------\r |
7eed09b3 |
172 | \r |
ab61cff7 |
173 | #ifndef PANDORA\r |
d183a522 |
174 | @@1. "Renderer"\r |
7eed09b3 |
175 | #ifdef GP2X\r |
d183a522 |
176 | 8bit fast:\r |
177 | This enables alternative heavily optimized tile-based renderer, which renders\r |
178 | pixels not line-by-line (this is what accurate renderers do), but in 8x8 tiles,\r |
179 | which is much faster. But because of the way it works it can't render any\r |
180 | mid-frame image changes (raster effects), so it is useful only with some games.\r |
7eed09b3 |
181 | \r |
d183a522 |
182 | Other two are accurate line-based renderers. The 8bit is faster but does not\r |
183 | run well with some games like Street Racer.\r |
39e5b215 |
184 | \r |
d183a522 |
185 | #endif\r |
186 | #ifdef GIZ\r |
187 | This option allows to switch between 16bit and 8bit renderers. The 8bit one is\r |
188 | a bit faster for some games, but not much, because colors still need to be\r |
189 | converted to 16bit, as this is what Gizmondo requires. It also introduces\r |
190 | graphics problems for some games, so it's best to use 16bit one.\r |
39e5b215 |
191 | \r |
d183a522 |
192 | #endif\r |
193 | #ifdef PSP\r |
194 | This option allows to switch between fast and accurate renderers. The fast one\r |
195 | is much faster, because it draws the whole frame at a time, instead of doing it\r |
196 | line by line, like the accurate one does. But because of the way it works it\r |
197 | can't render any mid-frame image changes (raster effects), so it is useful only\r |
198 | for some games.\r |
39e5b215 |
199 | \r |
7eed09b3 |
200 | #endif\r |
ab61cff7 |
201 | #endif\r |
d183a522 |
202 | #ifdef GP2X\r |
d183a522 |
203 | @@1. "Tearing Fix"\r |
204 | Wiz only: works around the tearing problem by using portrait mode. Causes ~5-10%\r |
205 | performance hit, but eliminates the tearing effect.\r |
7eed09b3 |
206 | \r |
d183a522 |
207 | @@1. "Gamma correction"\r |
208 | F100/F200 only: Alters image gamma through GP2X hardware. Larger values make\r |
209 | image to look brighter, lower - darker (default is 1.0).\r |
7eed09b3 |
210 | \r |
39e5b215 |
211 | @@1. "Vsync"\r |
d183a522 |
212 | This one adjusts the LCD refresh rate to better match game's refresh rate and\r |
213 | starts synchronizing rendering with it. Should make scrolling smoother and\r |
214 | eliminate tearing on F100/F200.\r |
215 | #endif\r |
7eed09b3 |
216 | #ifdef GIZ\r |
d183a522 |
217 | @@1. "Scanline mode"\r |
218 | This option was designed to work around slow framebuffer access (the Gizmondo's\r |
219 | main bottleneck) by drawing every other line (even numbered lines only).\r |
220 | This improves performance greatly, but looses detail.\r |
221 | \r |
222 | @@1. "Scale low res mode"\r |
223 | The Genesis/Megadrive had several graphics modes, some of which were only 256\r |
224 | pixels wide. This option scales their width to 320 by using simple\r |
225 | pixel averaging scaling. Works only when 16bit renderer is enabled.\r |
226 | \r |
c77ca79e |
227 | @@1. "Double buffering"\r |
228 | Draws the display to offscreen buffer, and flips it with visible one when done.\r |
229 | Unfortunately this causes serious tearing, unless v-sync is used (next option).\r |
230 | \r |
7eed09b3 |
231 | @@1. "Wait for V-sync"\r |
c77ca79e |
232 | Waits for vertical sync before drawing (or flipping buffers, if previous option\r |
233 | is enabled). Emulation is stopped while waiting, so this causes large performance\r |
234 | hit.\r |
7eed09b3 |
235 | #endif\r |
d183a522 |
236 | #ifdef PSP\r |
237 | @@1. "Scale factor"\r |
238 | This allows to resize the displayed image by using the PSP's hardware. The number is\r |
239 | used to multiply width and height of the game image to get the size of image to be\r |
240 | displayed. If you just want to make it fullscreen, just use "Set to fullscreen"\r |
241 | setting below.\r |
7eed09b3 |
242 | \r |
d183a522 |
243 | @@1. "Hor. scale (for low res. games)"\r |
244 | This one works similarly as the previous setting, but can be used to apply additional\r |
245 | scaling horizontally, and is used for games which use lower (256 pixel wide) Gen/MD\r |
246 | resolution.\r |
7eed09b3 |
247 | \r |
d183a522 |
248 | @@1. "Hor. scale (for hi res. games)"\r |
249 | Same as above, only for higher (320 pixel wide) resolution using games.\r |
7eed09b3 |
250 | \r |
d183a522 |
251 | @@1. "Bilinear filtering"\r |
252 | If this is enabled, PSP hardware will apply bilinear filtering on the resulting image,\r |
253 | making it smoother, but blurry.\r |
254 | \r |
255 | @@1. "Gamma adjustment"\r |
256 | Color gamma can be adjusted with this.\r |
7eed09b3 |
257 | \r |
d183a522 |
258 | @@1. "Black level"\r |
259 | This can be used to reduce unwanted "ghosting" effect for dark games, by making\r |
260 | black pixels brighter. Use in conjunction with "gamma adjustment" for more effect.\r |
261 | \r |
ab61cff7 |
262 | @@1. "Wait for v-sync"\r |
d183a522 |
263 | Wait for the screen to finish updating before switching to next frame, to avoid tearing.\r |
264 | There are 3 options:\r |
265 | * never: don't wait for vsync.\r |
266 | * sometimes: wait only if emulator is running fast enough.\r |
267 | * always: always wait (causes emulation slowdown).\r |
268 | \r |
269 | @@1. "Set to unscaled centered"\r |
270 | Adjust the resizing options to set game image to it's original size.\r |
271 | \r |
272 | @@1. "Set to 4:3 scaled"\r |
273 | Scale the image up, but keep 4:3 aspect, by adding black borders.\r |
274 | \r |
275 | @@1. "Set to fullscreen"\r |
276 | Adjust the resizing options to make the game image fullscreen.\r |
7eed09b3 |
277 | #endif\r |
ab61cff7 |
278 | #ifdef PANDORA\r |
39e5b215 |
279 | Allows to set up scaling, filtering and vertical sync.\r |
ab61cff7 |
280 | #endif\r |
84100c0f |
281 | \r |
7eed09b3 |
282 | \r |
283 | Sega/Mega CD options \r |
284 | --------------------\r |
285 | \r |
7eed09b3 |
286 | @@2. "CD LEDs"\r |
287 | The Sega/Mega CD unit had two blinking LEDs (red and green) on it. This option\r |
288 | will display them on top-left corner of the screen.\r |
289 | \r |
f8af9634 |
290 | @@2. "CDDA audio"\r |
7eed09b3 |
291 | This option enables CD audio playback.\r |
292 | \r |
293 | @@2. "PCM audio"\r |
294 | This enables 8 channel PCM sound source. It is required for some games to run,\r |
295 | because they monitor state of this audio chip.\r |
296 | \r |
297 | @@2. "ReadAhead buffer"\r |
d183a522 |
298 | This option can prefetch more data from the CD image than requested by game\r |
2d2247c2 |
299 | (to avoid accessing card later), what can improve performance in some cases.\r |
300 | #ifndef PSP\r |
301 | "OFF" is the recommended setting.\r |
7eed09b3 |
302 | #endif\r |
303 | \r |
304 | @@2. "Save RAM cart"\r |
305 | Here you can enable 64K RAM cart. Format it in BIOS if you do.\r |
306 | \r |
307 | @@2. "Scale/Rot. fx"\r |
308 | The Sega/Mega CD had scaling/rotation chip, which allows effects similar to\r |
92dfd9af |
309 | "Mode 7" effects in SNES. On slow systems like GP2X, disabling may improve\r |
310 | performance but cause graphical glitches.\r |
7eed09b3 |
311 | \r |
312 | \r |
39e5b215 |
313 | 32X options\r |
314 | -----------\r |
315 | \r |
316 | @@3. "32X enabled"\r |
317 | Enables emulation of addon. Option only takes effect when ROM is reloaded.\r |
318 | \r |
319 | #ifdef GP2X\r |
320 | @@3. "32X renderer"\r |
321 | This currently only affects how the Genesis/MD layers are rendered, which is\r |
322 | same as "Renderer" in display options.\r |
323 | \r |
324 | #endif\r |
325 | @@3. "PWM sound"\r |
326 | Emulates PWM sound portion of 32X hardware. Disabling this may greatly improve\r |
327 | performance for games that dedicate one of SD2s for sound, but will cause\r |
328 | missing sound effects and instruments.\r |
329 | \r |
330 | @@3. "Master SH2 cycles" / "Slave SH2 cycles"\r |
331 | This allows underclocking the 32X CPUs for better emulation performance. The\r |
332 | number has the same meaning as cycles in DOSBox, which is cycles per millisecond.\r |
333 | Underclocking too much may cause various in-game glitches.\r |
334 | \r |
335 | \r |
d183a522 |
336 | Advanced configuration\r |
337 | ----------------------\r |
81fda4e8 |
338 | \r |
39e5b215 |
339 | @@4. "Use SRAM/BRAM savestates"\r |
d183a522 |
340 | This will automatically read/write SRAM (or BRAM for Sega/Mega CD) savestates for\r |
341 | games which are using them. SRAM is saved whenever you enter the menu or exit the\r |
342 | emulator.\r |
81fda4e8 |
343 | \r |
39e5b215 |
344 | @@4. "Disable sprite limit"\r |
d183a522 |
345 | The MegaDrive/Genesis had a limit on how many sprites (usually smaller moving\r |
346 | objects) can be displayed on single line. This option allows to disable that\r |
347 | limit. Note that some games used this to hide unwanted things, so it is not\r |
348 | always good to enable this option.\r |
81fda4e8 |
349 | \r |
39e5b215 |
350 | @@4. "Emulate Z80"\r |
d183a522 |
351 | Enables emulation of Z80 chip, which was mostly used to drive the other sound chips.\r |
352 | Some games do complex sync with it, so you must enable it even if you don't use\r |
353 | sound to be able to play them.\r |
81fda4e8 |
354 | \r |
39e5b215 |
355 | @@4. "Emulate YM2612 (FM)"\r |
d183a522 |
356 | This enables emulation of six-channel FM sound synthesizer chip, which was used to\r |
357 | produce sound effects and music.\r |
81fda4e8 |
358 | \r |
39e5b215 |
359 | @@4. "Emulate SN76496 (PSG)"\r |
d183a522 |
360 | This enables emulation of PSG (programmable sound generation) sound chip for\r |
361 | additional effects.\r |
651b1a25 |
362 | \r |
d183a522 |
363 | Note: if you change sound settings AFTER loading a ROM, you may need to reset\r |
364 | game to get sound. This is because most games initialize sound chips on\r |
365 | startup, and this data is lost when sound chips are being enabled/disabled.\r |
651b1a25 |
366 | \r |
39e5b215 |
367 | @@4. "gzip savestates"\r |
d183a522 |
368 | This will always apply gzip compression on your savestates, allowing you to\r |
369 | save some space and load/save time.\r |
81fda4e8 |
370 | \r |
39e5b215 |
371 | @@4. "Don't save last used ROM"\r |
d183a522 |
372 | This will disable writing last used ROM to config on exit (what might cause SD\r |
373 | card corruption according to DaveC).\r |
81fda4e8 |
374 | \r |
39e5b215 |
375 | @@4. "Disable idle loop patching"\r |
d183a522 |
376 | Idle loop patching is used to improve performance, but may cause compatibility\r |
377 | problems in some rare cases. Try disabling this if your game has problems.\r |
84100c0f |
378 | \r |
39e5b215 |
379 | @@4. "Disable frame limiter"\r |
d183a522 |
380 | This allows games to run faster then 50/60fps, useful for benchmarking.\r |
d183a522 |
381 | \r |
382 | #ifdef GP2X\r |
39e5b215 |
383 | @@4. "Use ARM940 core for sound"\r |
d183a522 |
384 | F100/F200: This option causes PicoDrive to use ARM940T core (GP2X's second CPU)\r |
385 | for sound (i.e. to generate YM2612 samples) to improve performance noticeably.\r |
386 | It also decodes MP3s in Sega/Mega CD mode.\r |
387 | \r |
92dfd9af |
388 | #endif\r |
39e5b215 |
389 | @@4. "SVP dynarec"\r |
d183a522 |
390 | This enables dynamic recompilation for SVP chip emulated for Virtua Racing game,\r |
391 | what improves it's emulation performance greatly.\r |
d183a522 |
392 | \r |
393 | \r |
7eed09b3 |
394 | Key configuration\r |
395 | -----------------\r |
396 | \r |
397 | Select "Configure controls" from the main menu. Then select "Player 1" and you will\r |
398 | see two columns. The left column lists names of Genesis/MD controller buttons, and\r |
ab61cff7 |
399 | the right column your handheld ones, which are assigned.\r |
f0f0d2df |
400 | \r |
401 | There is also option to enable 6 button pad (will allow you to configure XYZ\r |
d183a522 |
402 | buttons), and an option to set turbo rate (in Hz) for turbo buttons.\r |
0a051f55 |
403 | \r |
404 | \r |
405 | Cheat support\r |
406 | -------------\r |
407 | \r |
408 | To use GG/patch codes, you must type them into your favorite text editor, one\r |
409 | per line. Comments may follow code after a whitespace. Only GameGenie and\r |
410 | Genecyst patch formats are supported.\r |
411 | Examples:\r |
412 | \r |
413 | Genecyst patch (this example is for Sonic):\r |
414 | \r |
415 | 00334A:0005 Start with five lives\r |
416 | 012D24:0001 Keep invincibility until end of stage\r |
417 | 009C76:5478 each ring worth 2\r |
418 | 009C76:5678 each ring worth 3\r |
419 | ...\r |
420 | \r |
421 | Game Genie patch (for Sonic 2):\r |
422 | \r |
423 | ACLA-ATD4 Hidden palace instead of death egg in level select\r |
424 | ...\r |
425 | \r |
426 | Both GG and patch codes can be mixed in one file.\r |
427 | \r |
428 | When the file is ready, name it just like your ROM file, but with additional\r |
429 | .pat extension, making sure that case matches.\r |
430 | \r |
431 | Examples:\r |
432 | \r |
433 | ROM: Sonic.zip\r |
434 | PATCH FILE: Sonic.zip.pat\r |
435 | \r |
436 | ROM: Sonic 2.bin\r |
437 | PATCH FILE: Sonic 2.bin.pat\r |
438 | \r |
439 | Put the file into your ROMs directory. Then load the .pat file as you would\r |
440 | a ROM. Then Cheat Menu Option should appear in main menu.\r |
441 | \r |
442 | \r |
443 | What is emulated?\r |
444 | -----------------\r |
445 | \r |
446 | Genesis/MegaDrive:\r |
81fda4e8 |
447 | #ifdef PSP\r |
448 | main 68k @ 7.6MHz: yes, FAME/C core\r |
449 | z80 @ 3.6MHz: yes, CZ80 core\r |
450 | #else\r |
0a051f55 |
451 | main 68k @ 7.6MHz: yes, Cyclone core\r |
452 | z80 @ 3.6MHz: yes, DrZ80 core\r |
81fda4e8 |
453 | #endif\r |
d183a522 |
454 | VDP: yes, except some quirks and modes not used by games\r |
0a051f55 |
455 | YM2612 FM: yes, optimized MAME core\r |
456 | SN76489 PSG: yes, MAME core\r |
a39b7867 |
457 | SVP chip: yes! This is first emu to ever do this.\r |
39e5b215 |
458 | Some in-cart mappers are also supported.\r |
0a051f55 |
459 | \r |
460 | Sega/Mega CD:\r |
81fda4e8 |
461 | #ifdef PSP\r |
462 | another 68k @ 12.5MHz: yes, FAME/C too\r |
463 | #else\r |
0a051f55 |
464 | another 68k @ 12.5MHz: yes, Cyclone too\r |
81fda4e8 |
465 | #endif\r |
6cadc2da |
466 | gfx scaling/rotation chip (custom ASIC): yes\r |
0a051f55 |
467 | PCM sound source: yes\r |
468 | CD-ROM controller: yes (mostly)\r |
469 | bram (internal backup RAM): yes\r |
470 | \r |
39e5b215 |
471 | 32X:\r |
472 | 2x SH2 @ 23MHz: yes, custom recompiler\r |
473 | Super VDP: yes\r |
474 | PWM: yes\r |
475 | \r |
0a051f55 |
476 | \r |
cc68a136 |
477 | Problems / limitations\r |
478 | ----------------------\r |
479 | \r |
bdec53c9 |
480 | #ifdef PSP\r |
a39b7867 |
481 | * SVP emulation is terribly slow.\r |
bdec53c9 |
482 | #endif\r |
d183a522 |
483 | * Various VDP modes and quirks (window bug, scroll size 2, etc.) are not\r |
484 | emulated, as very few games use this (if any at all).\r |
bdec53c9 |
485 | * The emulator is not 100% accurate, so some things may not work as expected.\r |
d183a522 |
486 | * The FM sound core doesn't support all features and has some accuracy issues.\r |
cc68a136 |
487 | \r |
488 | \r |
489 | Credits\r |
490 | -------\r |
491 | \r |
110df09c |
492 | This emulator is made of the code from following people/projects:\r |
cc68a136 |
493 | \r |
7eed09b3 |
494 | notaz\r |
39e5b215 |
495 | GP2X, UIQ, PSP, Gizmondo ports, CPU core hacks, dynamic recompilers,\r |
7eed09b3 |
496 | lots of additional coding (see changelog).\r |
497 | Homepage: http://notaz.gp2x.de/\r |
498 | \r |
d183a522 |
499 | fDave\r |
500 | one who started it all:\r |
501 | Cyclone 68000 core and PicoDrive itself\r |
cc68a136 |
502 | \r |
81fda4e8 |
503 | Chui\r |
504 | FAME/C 68k interpreter core\r |
505 | (based on C68K by Stephane Dallongeville)\r |
506 | \r |
507 | Stephane Dallongeville (written), NJ (optimized)\r |
508 | CZ80 Z80 interpreter core\r |
509 | \r |
cc68a136 |
510 | Reesy & FluBBa\r |
81fda4e8 |
511 | DrZ80, the Z80 interpreter written in ARM assembly.\r |
cc68a136 |
512 | Homepage: http://reesy.gp32x.de/\r |
513 | \r |
81fda4e8 |
514 | Tatsuyuki Satoh, Jarek Burczynski, MAME development\r |
cc68a136 |
515 | software implementation of Yamaha FM sound generator\r |
516 | \r |
81fda4e8 |
517 | MAME development\r |
518 | Texas Instruments SN76489 / SN76496 programmable tone/noise generator\r |
cc68a136 |
519 | Homepage: http://www.mame.net/\r |
520 | \r |
0a051f55 |
521 | Stephane Dallongeville\r |
522 | Gens, MD/Mega CD/32X emulator. Most Sega CD code is based on this emu.\r |
81fda4e8 |
523 | #ifdef PSP\r |
524 | \r |
525 | people @ ps2dev.org forums / PSPSDK crew\r |
526 | libaudiocodec code (by cooleyes)\r |
527 | other sample code\r |
81fda4e8 |
528 | #endif\r |
0a051f55 |
529 | \r |
cc68a136 |
530 | \r |
531 | Additional thanks\r |
532 | -----------------\r |
533 | \r |
534 | * Charles MacDonald (http://cgfm2.emuviews.com/) for old but still very useful\r |
535 | info about genesis hardware.\r |
cc68a136 |
536 | * Steve Snake for all that he has done for Genesis emulation scene.\r |
bdec53c9 |
537 | * Tasco Deluxe for his reverse engineering work on SVP and some mappers.\r |
cc68a136 |
538 | * Bart Trzynadlowski for his SSFII and 68000 docs.\r |
539 | * Haze for his research (http://haze.mameworld.info).\r |
053fd9b4 |
540 | * Lordus, Exophase and Rokas for various ideas.\r |
541 | * Nemesis for his YM2612 research.\r |
92dfd9af |
542 | * Eke\r |
39e5b215 |
543 | * Many posters at spritesmind.net forums for valuable information.\r |
cc68a136 |
544 | * Mark and Jean-loup for zlib library.\r |
7eed09b3 |
545 | * ketchupgun for the skin.\r |
546 | #ifdef GP2X\r |
cc68a136 |
547 | * rlyeh and all the other people behind the minimal library.\r |
548 | * Squidge for his famous squidgehack(tm).\r |
549 | * Dzz for his ARM940 sample code.\r |
a4f0cc86 |
550 | * A_SN for his gamma code.\r |
cc68a136 |
551 | * craigix for supplying the GP2X hardware and making this port possible.\r |
6cadc2da |
552 | * Alex for the icon.\r |
a4f0cc86 |
553 | * All the people from gp32x boards for their support.\r |
7eed09b3 |
554 | #endif\r |
555 | #ifdef GIZ\r |
556 | * Kingcdr's for the SDK and Reesy for the DLL and sound code.\r |
557 | * jens.l for supplying the Gizmondo hardware and making this port possible.\r |
558 | #endif\r |
e59af1c9 |
559 | * Inder for some graphics.\r |
7eed09b3 |
560 | * Anyone else I forgot. You know who you are.\r |
cc68a136 |
561 | \r |
562 | \r |
563 | Changelog\r |
564 | ---------\r |
68af34fe |
565 | 1.85 (2013-08-31)\r |
566 | * Lots of 32X compatibility and accuracy improvements. All commercial games\r |
567 | are booting now, but some still have issues.\r |
568 | * Fixed some regressions in MegaCD code, like hang in jap BIOS.\r |
569 | * Implemented pause for SMS.\r |
570 | * Updated UI with improvements from PCSX ReARMed.\r |
571 | * Frontend timing has been rewritten, should no longer slowly desync from\r |
572 | LCD on pandora.\r |
573 | * Added libretro and SDL 32/64bit ports, fixed compatibility issues with\r |
574 | Android, iOS.\r |
575 | * Various other things I forgot (it has been a while since last release..)\r |
576 | \r |
577 | 1.80 (2010-09-19)\r |
39e5b215 |
578 | + Added Caanoo support. Now the GP2X binary supports GP2X F100/F200, Wiz\r |
579 | and Caanoo. Lots of internal refactoring to support this.\r |
580 | + Enabled 32X and SMS code. It's still unfinished but better release something\r |
581 | now than wait even more (it has been in development for more then a year now\r |
582 | due to various other projects or simply lack of time).\r |
583 | + Pandora: added hardware scaler support, including ability to resize the\r |
584 | layer and control filtering.\r |
585 | + GP2X: Added basic line-doubling vertical scaling option.\r |
586 | * Changed the way keys are bound, no need to unbind old one any more.\r |
587 | * Handle MP3s with ID3 tags better (some MP3s with ID3 did not play).\r |
588 | * Improved shadow/hilight color levels.\r |
589 | * Fixed broken cheat support.\r |
590 | \r |
ab61cff7 |
591 | 1.80beta2\r |
592 | * Pandora: updated documentation.\r |
593 | \r |
68af34fe |
594 | 1.80beta1 (2010-06-02)\r |
ab61cff7 |
595 | + Added pandora port.\r |
596 | * Internal refactoring for 32x/SMS support.\r |
597 | * Move mapper database to external file.\r |
598 | + Added preliminary SMS emulation.\r |
599 | + Added emulation of 32x peripherals including VDP. More work is needed here.\r |
600 | + ARM: Added new SH2 recompiler for 32x. Some unification with SVP one.\r |
601 | - Disabled most of the above bacause I'm not yet happy with the results.\r |
e59af1c9 |
602 | \r |
68af34fe |
603 | 1.56 (2009-09-19)\r |
b3158e98 |
604 | * Changed sync in Sega CD emulation again. Should fix games that\r |
605 | broke after changes in 1.51a.\r |
606 | * Fixed default keys rebinding when they shouldn't.\r |
607 | * Fixed sram being loaded from wrong game.\r |
608 | * Emu should no longer hang shortly after using fast-forward.\r |
609 | * Fixed save states sometimes no longer showing up in save state menu.\r |
610 | * ARM: some asm code refactoring for slight speed improvement.\r |
611 | \r |
d183a522 |
612 | 1.55\r |
613 | + Added Wiz support. Now the same GP2X binary supports F100/F200 and Wiz.\r |
614 | * Changed shadow/hilight handling a bit, fixes some effects in Pirates! Gold.\r |
615 | * Complete input code rewrite. This fixes some limitations like not allowing\r |
616 | to control both players using single input device. It also allows to use\r |
617 | more devices (like keyboards) on Linux based devices.\r |
618 | * Options menu has been reordered, "restore defaults" option added.\r |
619 | \r |
84100c0f |
620 | 1.51b\r |
621 | * Fixed a crash when uncompressed savestate is loaded.\r |
622 | * Fixed an idle loop detection related hanging problem.\r |
623 | * PSP: fixed another palette related regression.\r |
02ba8788 |
624 | * UIQ3: updated frontend for the latest emu core.\r |
84100c0f |
625 | \r |
f9f40f10 |
626 | 1.51a\r |
627 | * Fixed a sync problem between main and sub 68k. Should fix the hanging\r |
628 | problem for some games.\r |
58b75cc5 |
629 | * ARM: fixed a crash when CD savestate is loaded just after loading ROM.\r |
f9f40f10 |
630 | \r |
f0f0d2df |
631 | 1.51\r |
9c26fb5e |
632 | * Improved bin_to_cso_mp3 tool, it should no longer complain about\r |
633 | missing lame.exe even if it's in working dir.\r |
634 | * Fixed a regression from 1.50, which caused slowdowns in Final Fight.\r |
635 | * Fixed some regressions from 1.50 related to sprite limit and palette\r |
636 | handling (caused graphical glitches in some games).\r |
f0f0d2df |
637 | + Added ABC turbo actions to key config.\r |
9c26fb5e |
638 | * Some other minor adjustments.\r |
639 | \r |
1850d43f |
640 | 1.50\r |
641 | + Added some basic support for Sega Pico, a MegaDrive-based toy.\r |
0bccafeb |
642 | + Added proper support for cue/bin images, including cdda playback.\r |
1850d43f |
643 | .cue sheets with iso/cso/mp3/wav files listed in them are now\r |
644 | supported too (but 44kHz restriction still applies).\r |
645 | + Added bin_to_cso_mp3 tool, based on Exophase's bin_to_iso_ogg.\r |
646 | The tool can convert .cue/.bin Sega CD images to .cso/.mp3.\r |
75e77902 |
647 | * Greatly improved Sega CD load times.\r |
1850d43f |
648 | * Changed how scheduling between 68k and z80 is handled. Improves\r |
649 | performance for some games. Credits to Lordus for the idea.\r |
650 | * YM2612 state was not 100% saved, this should be better now.\r |
651 | * Improved renderer performance for shadow/hilight mode.\r |
652 | * Added a hack for YM2612 frequency overflow issue (bleep noises\r |
653 | in Shaq Fu, Spider-Man - The Animated Series (intro music), etc.)\r |
052c0f86 |
654 | Credits to Nemesis @ spritesmind forum. Works only if sound rate\r |
1850d43f |
655 | is set to 44kHz.\r |
656 | + Implemented some sprite rendering improvements, as suggested by\r |
657 | Exophase. Games with lots of sprites now perform better.\r |
658 | + Added better idle loop detection, based on Lordus' idea again.\r |
75e77902 |
659 | - "accurate timing" option removed, as disabling it no longer\r |
1850d43f |
660 | improves performance.\r |
75e77902 |
661 | - "accurate sprites" was removed too, the new sprite code can\r |
1850d43f |
662 | properly handle sprite priorities in all cases.\r |
663 | * Timers adjusted again.\r |
664 | * Improved .smd detection code.\r |
665 | * ARM: fixed a bug in DrZ80 core, which could cause problems in\r |
666 | some rare cases.\r |
667 | * ARM: fixed a problem of occasional clicks on MP3 music start.\r |
668 | * Minor general optimizations and menu improvements.\r |
669 | * Fixed a bug in Sega CD savestate loader, where the game would\r |
670 | sometimes crash after load.\r |
0bccafeb |
671 | * Fixed a crash of games using eeprom (introduced in 1.40b).\r |
052c0f86 |
672 | * PSP: fixed suspend/resume (hopefully for real).\r |
0bccafeb |
673 | \r |
e91e5120 |
674 | 1.40c\r |
675 | * Fixed a problem with sound in Marble Madness.\r |
676 | * GP2X: Fixed minor problem with key config.\r |
677 | \r |
6fc57144 |
678 | 1.40b\r |
679 | * Fixed sprite masking code. Thanks to Lordus for explaining how it works.\r |
680 | + Added "disable sprite limit" option.\r |
681 | + PSP: added black level adjustment to display options.\r |
682 | * Changed reset to act as 'soft' reset.\r |
683 | + Added detection for Puggsy (it doesn't really have sram).\r |
684 | * Some small timing adjustments.\r |
685 | \r |
a39b7867 |
686 | 1.40a\r |
6fc57144 |
687 | * GP2X: Fixed a binding problem with up and down keys.\r |
a39b7867 |
688 | * Default game config no longer overrides global user config.\r |
689 | \r |
bdec53c9 |
690 | 1.40\r |
691 | + Added support for SVP (Sega Virtua Processor) to emulate Virtua Racing,\r |
2d2247c2 |
692 | wrote ARM recompiler and some HLE code for VR. Credits to Exophase and\r |
693 | Rokas for various ideas.\r |
bdec53c9 |
694 | * Changed config file format, files are now human-readable. Game specific\r |
695 | configs are now held in single file (but old game config files are still\r |
2d2247c2 |
696 | read when new one is missing).\r |
d6114368 |
697 | * Fixed a bug where some key combos didn't work as expected.\r |
6fc57144 |
698 | * Fixed a regression in renderer (ARM ports only, some graphic glitches in\r |
699 | rare cases).\r |
2d2247c2 |
700 | * Adjusted fast renderer to work with more games, including VR.\r |
d6114368 |
701 | * Fixed a problem where SegaCD RAM cart data was getting lost on reset.\r |
6fc57144 |
702 | * GP2X: Greatly reduced SegaCD FMV game slowdowns by disabling read-ahead\r |
703 | in the Linux kernel and C library (thanks to Rokas and Exophase for ideas\r |
704 | again). Be sure to keep "ReadAhead buffer" OFF to avoid slowdowns.\r |
2d2247c2 |
705 | + PicoDrive now comes with a game config file for some games which need\r |
706 | special settings, so they should now work out-of-the-box. More games will\r |
707 | be added with later updates.\r |
6fc57144 |
708 | + GP2X: Files now can be deleted by pressing A+SELECT in the file browser.\r |
bdec53c9 |
709 | \r |
2445b7cb |
710 | 1.35b\r |
711 | * PSP: mp3 code should no longer fail on 1.5 firmware.\r |
712 | + PSP: added gamma adjustment option.\r |
7d0143a2 |
713 | + Added .cso ISO format support. Useful for non-FMV games.\r |
714 | * It is now possile to force a region after the ROM is loaded.\r |
2445b7cb |
715 | * Fixed a sram bug in memhandlers (fixes Shining in the Darkness saves).\r |
716 | * PSP: fixed another bug in memhanlers, which crashed the emu for some games\r |
7d0143a2 |
717 | (like NBA Jam and NHL 9x).\r |
4a32f01f |
718 | + PSP: added suspend/resume handling for Sega CD games.\r |
719 | + GP2X: added additional low volume levels for my late-night gaming sessions\r |
720 | (in stereo mode only).\r |
721 | + GP2X: added "fast forward" action in key config. Not recommended to use for\r |
722 | Sega CD, may case problems there.\r |
7d0143a2 |
723 | * Some other small tweaks I forgot about.\r |
2445b7cb |
724 | \r |
c6196c0f |
725 | 1.35a\r |
726 | * PSP: fixed a bug which prevented to load any ROMs after testing the BIOS.\r |
727 | * PSP: fixed incorrect CZ80 memory map setup, which caused Z80 crashes and\r |
728 | graphics corruption in EU Mega CD model1 BIOS menus.\r |
729 | + PSP: added additional "set to 4:3 scaled" display option for convenience.\r |
4a32f01f |
730 | + PSP: Added an option to disable frame limitter (works only with non-auto frameskip).\r |
c6196c0f |
731 | \r |
81fda4e8 |
732 | 1.35\r |
733 | + PSP port added. Lots of new code for it. Integrated modified FAME/C, CZ80 cores.\r |
734 | + Some minor generic optimizations.\r |
735 | * Patched some code which was crashing under PSP, but was working in GP2X/Giz\r |
736 | (although it should have crashed there too).\r |
737 | * Readme updated.\r |
738 | \r |
1dceadae |
739 | 1.34\r |
7eed09b3 |
740 | + Gizmondo port added.\r |
e849512f |
741 | + Some new optimizations in memory handlers, and for shadow/hilight mode.\r |
742 | + Added some hacks to make more games work without enabling "accurate timing".\r |
e849512f |
743 | * Adjusted timing for "accurate timing" mode and added preliminary VDP FIFO\r |
744 | emulation. Fixes Double Dragon 2, tearing in Chaos Engine and some other games.\r |
5f8c85be |
745 | * Fixed a few games not having sound at startup.\r |
1dceadae |
746 | * Updated serial EEPROM code to support more games. Thanks to EkeEke for\r |
747 | providing info about additional EEPROM types and game mappers.\r |
748 | * The above change fixed hang of NBA Jam.\r |
45499284 |
749 | * Minor adjustments to control configurator.\r |
e849512f |
750 | \r |
4e8a534c |
751 | 1.33\r |
752 | * Updated Cyclone core to 0.0088.\r |
753 | + Added A r k's usbjoy fix.\r |
754 | + Added "perfect vsync" option, which adjusts GP2X LCD refresh rate and syncs\r |
755 | emulation to it to eliminate tearing and ensure smoothest scrolling possible.\r |
d183a522 |
756 | + Added an option to use A_SN's gamma curve for gamma correction (improves dark\r |
4e8a534c |
757 | and bright color display for mk2s).\r |
e362c573 |
758 | * Sometimes stray sounds were played after loading a savestate. Fixed.\r |
759 | * Fixed a problem where >6MB mp3s were corrupted in memory (sound glitches in\r |
760 | Snatcher).\r |
761 | * PD no longer overwrites video player code in memory, video player now can be\r |
767bf1ad |
762 | used after exiting PicoDrive.\r |
4e8a534c |
763 | * Fixed a bug which was causing Sonic 3 code to deadlock in some rare conditions\r |
764 | if "accurate timing" was not enabled.\r |
765 | * Fixed support for large hacked ROMs like "Ultimate Mortal Kombat Trilogy".\r |
766 | Upto 10MB hacked ROMs are supported now.\r |
d524c827 |
767 | + Config profiles added (press left/right when saving config).\r |
767bf1ad |
768 | * Changed key configuration behavior to the one from gpfce (should be more\r |
d524c827 |
769 | intuitive).\r |
a12e0116 |
770 | + Added some skinning capabilities to the menu system with default skin by\r |
a4f0cc86 |
771 | ketchupgun. Delete skin directory if you want old behaviour.\r |
767bf1ad |
772 | * Some other little tweaks I forgot about.\r |
e362c573 |
773 | \r |
2433f409 |
774 | 1.32\r |
775 | + Added some new scaling options.\r |
6cadc2da |
776 | + Added ability to reload CD images while game is running (needed for games\r |
721cd396 |
777 | with multiple CDs, like Night Trap).\r |
6cadc2da |
778 | + Added RAM cart emulation.\r |
2433f409 |
779 | * Fixed DMA timing emulation (caused lock-ups for some genesis games).\r |
780 | * Idle loop detection was picking up wrong code and causing glitches, fixed.\r |
781 | * The ym2612 code on 940 now can handle multiple updates per frame\r |
782 | (fixes Thunger Force III "seiren" level drums for example).\r |
783 | * Memory handlers were ignoring some writes to PSG chip, fixed (missing sounds in\r |
784 | Popful Mail, Silpheed).\r |
721cd396 |
785 | * Improved z80 timing, should fix some sound problems.\r |
786 | * Fixed a bug with sram register (fixes Phantasy Star 4).\r |
6cadc2da |
787 | * ROM loader was incorrectly identifying some ROMs as invalid. Fixed.\r |
721cd396 |
788 | * Added code for PRG ram write protection register (Dungeon Explorer).\r |
46969540 |
789 | * The memory mode register change in 1.31 was unsafe and caused some glitches in\r |
790 | AH-3 Thunderstrike. Fixed.\r |
791 | * Fixed a file descriptor leak.\r |
6cadc2da |
792 | * Updated documentation, added Gmenu2x manual.\r |
2433f409 |
793 | \r |
c008977e |
794 | 1.31\r |
795 | * Changed the way memory mode register is read (fixes Lunar 2, broken in 1.30).\r |
796 | * Fixed TAS opcode on sub-68k side (fixes Batman games).\r |
797 | * File browser now filters out mp3s, saves and some other files, which are not ROMS.\r |
798 | \r |
782f8f22 |
799 | 1.30\r |
0a051f55 |
800 | + ISO files now can be zipped. Note that this causes VERY long loading times.\r |
801 | + Added data pre-buffering support, this allows to reduce frequency of short pauses\r |
4ff2d527 |
802 | in FMV games (caused by SD access), but makes those pauses longer.\r |
0a051f55 |
803 | * Fixed PCM DMA transfers (intro FMV in Popful Mail).\r |
7336a99a |
804 | + Properly implemented "decode" data transformation (Jaguar XJ220).\r |
805 | * Integrated "better sync" code into cyclone code, what made this mode much faster.\r |
806 | * Fixed a bug related to game specific config saving.\r |
4ff2d527 |
807 | * Frameskipper was skipping sound processing, what caused some audio desyncs. Fixed.\r |
48e8482f |
808 | * Fixed reset not working for some games.\r |
a4030801 |
809 | + New assembly optimized memory handlers for CD (gives at least a few fps).\r |
782f8f22 |
810 | Also re-enabled all optimizations from 0.964 release.\r |
811 | + New idle-loop detection code for sub-68k. Speeds up at least a few games.\r |
0a051f55 |
812 | \r |
813 | 1.201\r |
814 | + Added basic cheat support (GameGenie and Genecyst patches).\r |
815 | \r |
816 | 1.20\r |
817 | * Fixed a long-standing problem in audio mixing code which caused slight distortions\r |
818 | at lower sample rates.\r |
819 | * Changed the way 920 and 940 communicates (again), should be more reliable and give\r |
820 | slight performance increase.\r |
821 | * Some optimizations in audio mixing code.\r |
822 | * Some menu changes (background added, smaller font in ROM browser, savestate loader\r |
823 | now can select slots).\r |
824 | + 1M mode DMA transfers implemented (used by FMV games like Night Trap and Sewer Shark).\r |
825 | + Games now can run code from WORD RAM in 1M mode (fixes Adventures of Willy Beamish).\r |
826 | + "Cell arrange" address mapping is now emulated (Heart of the alien).\r |
827 | + "Color numeric operation" is now emulated (text in Lunar 2, Silpheed intro graphics).\r |
828 | + "Better sync" option added (prevents some games from hanging).\r |
829 | \r |
830 | 1.14\r |
831 | + Region autodetection now can be customized.\r |
832 | * When CDDA music tracks changed, old buffer contents were incorrectly played. Fixed.\r |
833 | * BRAM is now automatically formatted (no need to enter BIOS menu and format any more).\r |
834 | * Games now can be reset, CDDA music no longer breaks after loading another ISO.\r |
835 | * Fixed a race condition between 920 and 940 which sometimes caused CDDA music not to play.\r |
836 | + Savestates implemented for Sega/Mega CD.\r |
837 | + PCM sound added.\r |
838 | * Some mixer code rewritten in asm. 22kHz and 11kHz sound rates are now supported in\r |
839 | Mega CD mode (but mp3s must still be 44kHz stereo).\r |
840 | + Timer emulation added.\r |
841 | * CDC DMA tansfers fixed. Snatcher and probably some more games now boot.\r |
842 | * 2M word RAM -> VDP transfers fixed, no more corruption in Ecco and some other games.\r |
843 | \r |
844 | 1.10\r |
845 | + GP2X: Added experimental Sega CD support.\r |
846 | + GP2X: Added partial gmv movie playback support.\r |
847 | \r |
68af34fe |
848 | 0.964 (2006-12-03)\r |
cc68a136 |
849 | * GP2X: Fixed a sound buffer underflow issue on lower sample rate modes, which was\r |
850 | happening for NTSC games and causing sound clicks.\r |
851 | * GP2X: Redone key config to better support USB joysticks (now multiple joysticks\r |
852 | should be useable and configurable).\r |
853 | + GP2X: Added save confirmation option.\r |
854 | + GP2X: Added 940 CPU crash detection.\r |
855 | + ALL: UIQ3 port added.\r |
856 | \r |
857 | 0.963\r |
858 | * GP2X: Gamma-reset-on-entering-menu bug fixed.\r |
859 | * GP2X: Recompiled PicoDrive with gcc profiling option set as described here:\r |
860 | http://www.gp32x.com/board/index.php?showtopic=28490\r |
861 | \r |
862 | 0.962\r |
863 | * GP2X: Fixed an issue with incorrect sounds in some games when dualcore operation\r |
864 | was enabled (for example punch sound in SOR).\r |
865 | * GP2X: Limited max volume to 90, because higher values often cause distortions.\r |
866 | * GP2X: Fixed a bug with lower res scaling.\r |
867 | * GP2X: Gamma is now reset on exit.\r |
868 | \r |
869 | 0.96\r |
870 | * ALL: Severely optimized MAME's YM2612 core, part of it is now rewritten in asm.\r |
871 | + GP2X: The YM2612's code now can be run in GP2X's ARM940T CPU, what causes large\r |
872 | performance increase.\r |
873 | * ALL: Accurate renderers are slightly faster now.\r |
874 | + GP2X: Using quadruple buffering instead of doublebuffer now, also updated\r |
875 | framelimitter, this should eliminate some scrolling and tearing problems.\r |
876 | * GP2X: Fixed some flickering issues of 8bit accurate renderer.\r |
877 | + GP2X: craigix's RAM timings now can be enabled in the menu (see advanced options).\r |
878 | + GP2X: Added ability to save config for specific games only.\r |
879 | + GP2X: Gamma control added (using GP2X's hardware capabilities for this).\r |
880 | * GP2X: Volume keys are now configurable.\r |
881 | + GP2X: GnoStiC added USB joystick support, I made it possible to use it for\r |
882 | player 2 control (currently untested).\r |
883 | * GP2X: squidgehack is now applied through kernel module (cleaner way).\r |
884 | \r |
885 | 0.95\r |
886 | * ALL: Fixed a bug in sprite renderer which was causing slowdowns for some games.\r |
887 | + GP2X: Added command line support\r |
888 | + GP2X: Added optional hardware scaling for lower-res games like Shining Force.\r |
889 | * ALL: Sound chips are now sampled 2 times per frame. This fixed some games which\r |
890 | had missing sounds (Vectorman 2 1st level, Thunder Force 3 water level,\r |
891 | etc.).\r |
892 | + ALL: Added another accurate 8-bit renderer which is slightly faster and made it\r |
893 | default.\r |
894 | \r |
895 | 0.945\r |
896 | + GP2X: Added frame limiter for frameskipped modes.\r |
897 | * GP2X: Increased brightness a bit (unused pixel bits now also contain data).\r |
898 | * GP2X: Suidgehack was not applied correctly (was applied before allocating some\r |
899 | high memory and had no effect).\r |
900 | \r |
901 | 0.94\r |
902 | + Added GP2X port.\r |
903 | * Improved interrupt timing, Mazin Saga and Burning Force now works.\r |
904 | * Rewritten renderer code to better suit GP2X, should be faster on other\r |
905 | ports too.\r |
906 | + Added support for banking used by 12-in-1 and 4-in-1 ROMs (thanks Haze).\r |
907 | + Added some protection device faking, used by some unlicensed games like\r |
908 | Super Bubble Bobble, King of Fighters, Elf Wor, ... (thanks to Haze again)\r |
909 | + Added primitive Virtua Racing SVP faking, so menus can be seen now.\r |
910 | \r |
911 | 0.93\r |
912 | * Fixed a problem with P900/P910 key configuration in FC mode.\r |
913 | * Improved shadow/hilight mode emulation. Still not perfect, but should be\r |
914 | enough for most games.\r |
915 | + Save state slots added.\r |
916 | + Region selector added.\r |
917 | \r |
918 | 0.92\r |
919 | VDP changes:\r |
920 | * VDP emulation is now more accurate (fixes flickering in Chase HQ II,\r |
921 | Super Hang-On and some other problems in other games).\r |
922 | * HV counter emulation is now much more accurate. Fixes the Asterix games,\r |
923 | line in Road Rash 3, etc.\r |
924 | * Minor sprite and layer scroll masking bugs fixed.\r |
925 | + Added partial interlace mode renderer (Sonic 2 vs mode)\r |
926 | * Fixed a crash in both renderers when certain size window layers were used.\r |
927 | + Added emulation of shadow/hilight operator sprites. Other shadow/hilight\r |
928 | effects are still unemulated.\r |
929 | + Sprite emulation is more accurate, sprite limit is emulated.\r |
930 | + Added "accurate sprites" option, which always draws sprites in correct\r |
931 | order and emulates sprite collision bit, but is significantly slower.\r |
932 | \r |
933 | Emulation changes:\r |
934 | * Improved interrupt handling, added deferred interrupt emulation\r |
935 | (Lemmings, etc).\r |
936 | + Added serial EEPROM SRAM support (Wonder Boy in Monster World,\r |
937 | Megaman - The Wily Wars and many EA sports games like NBA Jam).\r |
938 | + Implemented ROM banking for Super Street Fighter II - The New Challengers\r |
939 | * Updated to the latest version of DrZ80 core, integrated memory handlers\r |
940 | in it for better performance. A noticeable performance increase, but save\r |
941 | states may not work from the previous version (you can only use them with\r |
942 | sound disabled in that case).\r |
943 | + SRAM word read handler was using incorrect byte order, fixed.\r |
944 | \r |
945 | Changes in Cyclone 0.0086:\r |
946 | + Added missing CHK opcode handler (used by SeaQuest DSV).\r |
947 | + Added missing TAS opcode handler (Gargoyles,Bubba N Stix,...). As in real genesis,\r |
948 | memory write-back phase is ignored (but can be enabled in config.h if needed).\r |
949 | + Added missing NBCD and TRAPV opcode handlers.\r |
950 | + Added missing addressing mode for CMP/EOR.\r |
951 | + Added some minor optimizations.\r |
952 | - Removed 216 handlers for 2927 opcodes which were generated for invalid addressing modes.\r |
953 | + Fixed flags for ASL, NEG, NEGX, DIVU, ADDX, SUBX, ROXR.\r |
954 | + Bugs fixed in MOVEP, LINK, ADDQ, DIVS handlers.\r |
955 | * Undocumented flags for CHK, ABCD, SBCD and NBCD are now emulated the same way as in Musashi.\r |
956 | + Added Uninitialized Interrupt emulation.\r |
957 | + Altered timing for about half of opcodes to match Musashi's.\r |
958 | \r |
959 | 0.80\r |
960 | * Nearly all VDP code was rewritten in ARM asm. Gives ~10-25% performance\r |
961 | increase (depends on game).\r |
962 | * Optimized 32-column renderer not to render tiles offscreen, games which\r |
963 | use 32-column display (like Shining Force) run ~50% faster.\r |
964 | + Added new "Alternative renderer", which gives another ~30-45% performance\r |
965 | increase (in addition to mentioned above), but works only with some games,\r |
d183a522 |
966 | because it is missing some features (it uses tile-based rendering\r |
cc68a136 |
967 | instead of default line-based and disables H-ints).\r |
968 | + Added "fit2" display mode for all FC gamers. It always uses 208x146 for\r |
969 | P800 and 208x208 for all other phones.\r |
970 | + Added volume control for Motorolas (experimental).\r |
971 | \r |
972 | VDP changes:\r |
973 | + Added support for vertical window (used by Vapor Trail, Mercs, GRIND\r |
974 | Stormer and others).\r |
975 | + Added sprite masking (hiding), adds some speed.\r |
976 | + Added preliminary H counter emulation. Comix Zone and Sonic 3D Blast\r |
977 | special stage are now playable.\r |
978 | + Added column based vertical scrolling (Gunstar Heroes battleship level,\r |
979 | Sonic and Knuckles lava boss, etc).\r |
980 | \r |
981 | Emulation changes:\r |
982 | + Re-added and improved Z80 faking when Z80 is disabled. Many games now can\r |
983 | be played without enabling Z80 (Lost Vikings, Syndicate, etc), but some\r |
984 | still need it (International Superstar Soccer Deluxe).\r |
985 | * Improved ym2612 timers, Outrun music plays at correct speed, voices in\r |
986 | Earthworm Jim play better, more games play sound.\r |
987 | * I/O registers now remember their values (needed for Pirates! Gold)\r |
988 | + Added support for 6 button pad.\r |
989 | \r |
990 | Changes in Cyclone 0.0083wip:\r |
991 | + Added missing CHK opcode (used by SeaQuest DSV).\r |
992 | + Added missing TAS opcode (Gargoyles). As in real genesis, write-back phase\r |
993 | is ignored (but is enabled for other systems).\r |
994 | \r |
995 | Backported stuff from Snes9x:\r |
996 | * Fixed Pxxx jog up/down which were not working in game.\r |
997 | + Added an option to gzip save states to save space.\r |
998 | + The emulator now pauses whenever it is loosing focus, so it will now pause\r |
999 | when alarm/ponecall/battery low/... windows come up.\r |
1000 | - Removed 'pause on phonecall' feature, as it is no longer needed.\r |
1001 | + Video fix for asian A1000s.\r |
1002 | \r |
1003 | 0.70\r |
1004 | * Started using tools from "Symbian GCC Improvement Project", which give\r |
1005 | considerable speed increase (~4fps in "center 90" mode).\r |
1006 | * Rewrote some drawing routines in ARM assembly (gives ~6 more fps in\r |
1007 | "center 90" mode).\r |
1008 | * Minor improvement to 0 and 180 "fit" modes. Now they look slightly better\r |
1009 | and are faster.\r |
1010 | * Minor stability improvements (emulator is less likely to crash).\r |
1011 | + Added some background for OSD text for better readability.\r |
1012 | + Added Pal/NTSC detection. This is needed for proper sound speed.\r |
1013 | + Implemented Reesy's DrZ80 Z80 emu. Made some changes to it with hope to make\r |
1014 | it faster.\r |
1015 | + Implemented ym2612 emu from the MAME project. Runs well but sometimes sounds\r |
1016 | a bit weird. Could be a little faster, so made some changes too.\r |
1017 | + Implemented SN76489 emu from the MAME project.\r |
1018 | + Added two separate sound output methods (mediaserver and cmaudiofb) with\r |
1019 | autodetection (needs testing).\r |
1020 | * Fixed VDP DMA fill emulation (as described in Charles MacDonald's docs),\r |
1021 | fixes Contra and some other games.\r |
1022 | \r |
1023 | 0.301\r |
1024 | Launcher:\r |
1025 | * Launcher now starts emulation process from current directory,\r |
1026 | not from hardcoded paths.\r |
1027 | * Improved 'pause on call' feature, should hopefully work with Motorola phones.\r |
1028 | \r |
68af34fe |
1029 | 0.30 (2006-01-07)\r |
cc68a136 |
1030 | Initial release.\r |
1031 | \r |
1032 | \r |
cff531af |
1033 | License\r |
1034 | -------\r |
1035 | \r |
1036 | This program and it's code is released under the terms of MAME license:\r |
1037 | \r |
1038 | Redistribution and use of this code or any derivative works are permitted\r |
1039 | provided that the following conditions are met:\r |
1040 | \r |
1041 | * Redistributions may not be sold, nor may they be used in a commercial\r |
1042 | product or activity.\r |
1043 | \r |
1044 | * Redistributions that are modified from the original source must include the\r |
1045 | complete source code, including the source code for all components used by a\r |
1046 | binary built from the modified sources. However, as a special exception, the\r |
1047 | source code distributed need not include anything that is normally distributed\r |
1048 | (in either source or binary form) with the major components (compiler, kernel,\r |
1049 | and so on) of the operating system on which the executable runs, unless that\r |
1050 | component itself accompanies the executable.\r |
1051 | \r |
1052 | * Redistributions must reproduce the above copyright notice, this list of\r |
1053 | conditions and the following disclaimer in the documentation and/or other\r |
1054 | materials provided with the distribution.\r |
1055 | \r |
1056 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"\r |
1057 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r |
1058 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r |
1059 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r |
1060 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r |
1061 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r |
1062 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r |
1063 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r |
1064 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r |
1065 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r |
1066 | POSSIBILITY OF SUCH DAMAGE.\r |
0a051f55 |
1067 | \r |
1068 | SEGA/Genesis/MegaDrive/SEGA-CD/Mega-CD/32X are trademarks of\r |
1069 | Sega Enterprises Ltd.\r |
1070 | \r |