5 PicodriveN is another port of PicoDrive, Dave's Megadrive / Genesis
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6 emulator for Pocket PC. This version is based on PicoDrive 0.030 and is
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7 made for Symbian UIQ devices. It is alternative version to another port by
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8 AnotherGuest / Someone and is not based on it (so it has a little
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9 different name). It also has full sound support (starting
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10 from version 0.70) .
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16 * Good compatibility (> 90%)
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17 * Improved Cyclone 68000 core.
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18 * Zipped ROMs and savestates.
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19 * SRAM support, including serial SRAM.
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20 * Game screen rotation with many render modes (like 'centered' and 'fit').
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21 * Selectable frameskip.
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22 * Configurable keys and touchpad.
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23 * Flip-closed mode for SE phones.
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24 * Full sound support.
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27 Problems / limitations
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28 ----------------------
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30 * 32x, Sega CD, SVP are not emulated.
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31 * Various VDP quirks (window bug, scroll size 2, etc.) are not emulated,
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32 as very few games use this.
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33 * Some games don't work or have glitches because of inaccurate sync.
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41 If it looks confusing to you, check this tutorial first:
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42 http://notaz.atspace.com/pico_tut/
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44 There are no default settings.
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45 When you start key configuration mode, black screen with dark-red squares will
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46 appear. Also there will be little 'control' on the right with the function
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47 name in it, and arrows on the corners of it. You can tap on these corners to
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48 select a function. You can also tap on these squares to bind that function to
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49 them. This way you can associate touchpad areas with game-controls or functions.
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50 I also made a small square in every corner of the screen to be used as a virtual
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51 button for some function, like save state. You can bind it as you like. To
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52 bind phone buttons, simply select the function you need, and press a button
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53 you want. To unbind any key or touchpad area, simply push or tap it again.
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54 To configure flip-closed mode, enter configuration mode and close flip.
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56 When finished, select 'done' and press any key. You can also hold 'Power'
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57 button for a while to exit (seems to work on PXXX only).
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59 You need to bind 'pause emu' function to be able exit game when ROM is loaded.
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60 You can also exit game by holding 'power' button (possibly 'end' for motorola
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65 Here you can set the orientation of screen and the drawing mode. The "fit"
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66 option will scale the image so it fully fits in the screen, but some detail
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67 will be lost. "center" displays the game at the center of the screen, but
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68 non-fitting parts are not visible then (better for RPG games with lots of
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69 text, which becomes unreadable in 'fit' mode). "fit2" was meant for Pxxx FC
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70 gaming and will always use 208x146 for P800 and 208x208 for all other phones.
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72 "Fast renderer" enables faster rendering method, but it works only with some
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73 games (some other have serious glitches or even hang).
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75 "Accurate timing" is needed for some games to run (like Red Zone). It should
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76 be kept off for all other games, because it slows emulation down. Some games
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77 also need this option for proper sound, so enable this if game has any
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80 "Accurate sprites" fixes sprite priority problems, for example if game
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81 character is in front of or behind some object it should not be, this option
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82 should fix it. This option does not work in "Fast renderer" mode.
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84 "Show FPS" shows game frames per second in format XX/YY, where XX is the
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85 number of frames shown per previous second, and YY is the number of frames
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86 emulated, but not necessarily shown. By calculating YY-XX you get the number
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87 of skipped frames per second.
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91 Sound emulation is very picky on CPU power (in most cases sound alone uses
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92 more CPU power than everything else altogether), but it is still possible to
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93 play some games. When using sound, the recommended display modes are "fit 0"
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94 and "fit 180", because these are the fastest ones. Also try "Alternative
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95 renderer", but it might cause graphical glitches. You must use auto frameskip
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96 when using sound, or else you will get stuttering sound. Also, it is
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97 recommended to exit all other non-vital apps (you can use SMan for this),
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98 disable bluetooth and any other devices your phone may have. I also noticed
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99 that simply connecting the phone battery charger strangely slows everything
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102 "Enable sound" tries to enable sound output on your device, but that alone is
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103 not enough to get sound. You need to enable the sound chips below:
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104 "Z80" is secondary CPU in genesis and is mostly used to control the other 2
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105 sound chips. So if you disable Z80, sound will be lost in most games, with
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106 some exceptions like Sonic1. It is possible to use Z80 for other things,
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107 some games do that and Z80 must be enabled to run them at all.
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108 "YM2612" is a fairly complex Frequency Modulation (FM) sound synthesis chip.
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109 It was the main sound output device in genesis and is horrible CPU hog when
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110 is tried to be emulated in software. Disabling it gives large speed
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111 improvement, but most of the sound is lost.
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112 "SN76496" is programmable sound generator (PSG) chip, used for various sound
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113 effects and music elements.
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114 The lowest setting is audio quality setting, which should be left set to
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115 "8000Hz mono", because other choces slow everything down terribly and
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116 are left for testing and possibly for use in other ports to faster future
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117 devices with faster CPUs.
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119 Note: if you change sound settings AFTER loading a ROM, you may need to reset
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120 game to get sound. This is because most games initialize sound chips on
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121 startup, and this data is lost when sound chips are being enabled/disabled.
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125 "6 button pad" will enable 6 button gamepad emulation and will add additional
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126 X, Y, Z and MODE actions to key configuration.
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127 Note: if you enable this, games may detect that and use different button
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128 configuration, for example A ("high punch") will change to "low punch" in
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129 Mortal Kombat and you will need to bind X for "high punch".
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131 "gzip save states" enables gzip (similar to ordinary zip, but a little
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132 different) compression on your save states to save space. The compression
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133 ratio is 50-90%, so it's worth to enable this.
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135 "Use SRAM saves" option enables emulation of batery-backed save RAM some game
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136 cartridges had. RPG games used it alot, but there were some others too, like
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137 Sonic 3. If this is enabled, <ROMname>.srm files are generated when you exit
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138 the emulator or load another ROM. Format is compatible with other popular
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139 emulators (like Gens and Fusion).
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144 "Auto" option tries to run the game in it's original speed by skipping next
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145 frame if the previous was rendered too slow.
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146 "0" displays every frame, thus game runs very slow.
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147 "1" skips every other frame. Use this for a game which is smoother, but a bit
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148 too slow (actually depends on display mode you use).
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149 "2" also makes the game smoother, but it will be too fast in most areas.
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150 "4","8" is way too fast and is useful for skiping intros, etc.
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157 This emulator uses code from these people/projects:
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160 Cyclone 68000 core, Pico emulation library
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161 Homepage: http://www.finalburn.com/
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162 E-mail: david(atsymbol)finalburn.com
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165 UIQ port, Cyclone 68000 hacks, some additional coding (see changelog).
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166 Homepage: http://notaz.atspace.com/
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167 E-mail: notasas(atsymbol)gmail.com
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170 DrZ80, the Z80 emulator written in ARM assembly.
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171 Homepage: http://reesy.gp32x.de/
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172 E-mail: drsms_reesy(atsymbol)yahoo.co.uk
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174 Tatsuyuki Satoh, Jarek Burczynski, MultiArcadeMachineEmulator development
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175 software implementation of Yamaha FM sound generator
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177 MultiArcadeMachineEmulator (MAME) development
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178 Texas Instruments SN76489 / SN76496 programmable tone /noise generator
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179 Homepage: http://www.mame.net/
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185 * Peter van Sebille for ECompXL and his various open-source Symbian projects
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187 * Steve Fischer for his open-source Motorola projects.
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188 * Charles MacDonald (http://cgfm2.emuviews.com/) for old but still very useful
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189 info about genesis hardware.
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190 * Stéphane Dallongeville for creating Gens and making it open-source.
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191 * Steve Snake for all that he has done for Genesis emulation scene.
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192 * Bart Trzynadlowski for his SSFII and 68000 docs.
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193 * Haze for his research (http://haze.mameworld.info).
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194 * The development team behind "Symbian GCC Improvement Project"
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195 (http://www.inf.u-szeged.hu/symbian-gcc/) for their updated compile tools.
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196 * Mark and Jean-loup for zlib library.
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197 * Reesy for also finding some Cyclone bugs.
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198 * Inder for the icons.
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204 * Improved interrupt timing, Mazin Saga and Burning Force now works.
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205 * Rewritten renderer code to better suit gp2x, should be faster on other
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207 + Added support for banking used by 12-in-1 and 4-in-1 ROMs (thanks Haze).
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208 + Added some protection device faking, used by some unlicensed games like
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209 Super Bubble Bobble, King of Fighters, Elf Wor, ...
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210 + Added primitive Virtua Racing SVP faking, so menus can be seen now.
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213 * Fixed a problem with P900/P910 key configuration in FC mode.
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214 * Improved shadow/hilight mode emulation. Still not perfect, but should be
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215 enough for most games.
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216 + Save state slots added.
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217 + Region selector added.
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221 * VDP emulation is now more accurate (fixes flickering in Chase HQ II,
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222 Super Hang-On and some other problems in other games).
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223 * HV counter emulation is now much more accurate. Fixes the Asterix games,
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224 line in Road Rash 3, etc.
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225 * Minnor sprite and layer scroll masking bugs fixed.
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226 + Added partial interlace mode renderer (Sonic 2 vs mode)
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227 * Fixed a crash in both renderers when certain size window layers were used.
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228 + Added emulation of shadow/hilight operator sprites. Other shadow/hilight
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229 effects are still unemulated.
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230 + Sprite emulation is more accurate, sprite limit is emulated.
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231 + Added "accurate sprites" option, which always draws sprites in correct
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232 order and emulates sprite collision bit, but is significantly slower.
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235 * Improved interrupt handling, added deferred interrupt emulation
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237 + Added serial EEPROM SRAM support (Wonder Boy in Monster World,
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238 Megaman - The Wily Wars and many EA sports games like NBA Jam).
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239 + Implemented ROM banking for Super Street Fighter II - The New Challengers
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240 * Updated to the latest version of DrZ80 core, integrated memory handlers
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241 in it for better performance. A noticeable performance increase, but save
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242 states may not work from the previous version (you can only use them with
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243 sound disabled in that case).
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244 + SRAM word read handler was using incorrect byte order, fixed.
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246 Changes in Cyclone 0.0086:
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247 + Added missing CHK opcode handler (used by SeaQuest DSV).
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248 + Added missing TAS opcode handler (Gargoyles,Bubba N Stix,...). As in real genesis,
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249 memory write-back phase is ignored (but can be enabled in config.h if needed).
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250 + Added missing NBCD and TRAPV opcode handlers.
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251 + Added missing addressing mode for CMP/EOR.
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252 + Added some minor optimizations.
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253 - Removed 216 handlers for 2927 opcodes which were generated for invalid addressing modes.
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254 + Fixed flags for ASL, NEG, NEGX, DIVU, ADDX, SUBX, ROXR.
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255 + Bugs fixed in MOVEP, LINK, ADDQ, DIVS handlers.
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256 * Undocumented flags for CHK, ABCD, SBCD and NBCD are now emulated the same way as in Musashi.
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257 + Added Uninitialized Interrupt emulation.
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258 + Altered timing for about half of opcodes to match Musashi's.
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261 * Nearly all VDP code was rewritten in ARM asm. Gives ~10-25% performance
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262 increase (depends on game).
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263 * Optimized 32-column renderer not to render tiles offscreen, games which
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264 use 32-column display (like Shining Force) run ~50% faster.
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265 + Added new "Alternative renderer", which gives another ~30-45% performance
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266 increase (in addition to mentioned above), but works only with some games,
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267 because it is missing some features (it uses tile-based renderering
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268 instead of default line-based and disables H-ints).
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269 + Added "fit2" display mode for all FC gamers. It always uses 208x146 for
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270 P800 and 208x208 for all other phones.
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271 + Added volume control for Motorolas (experimental).
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274 + Added support for vertical window (used by Vapor Trail, Mercs, GRIND
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275 Stormer and others).
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276 + Added sprite masking (hiding), adds some speed.
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277 + Added preliminary H counter emulation. Comix Zone and Sonic 3D Blast
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278 special stage are now playable.
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279 + Added column based vertical scrolling (Gunstar Heroes battleship level,
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280 Sonic and Knuckles lava boss, etc).
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283 + Re-added and improved Z80 faking when Z80 is disabled. Many games now can
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284 be played without enabling Z80 (Lost Vikings, Syndicate, etc), but some
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285 still need it (International Superstar Soccer Deluxe).
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286 * Improved ym2612 timers, Outrun music plays at correct speed, voices in
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287 Earthworm Jim play better, more games play sound.
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288 * I/O registers now remember their values (needed for Pirates! Gold)
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289 + Added support for 6 button pad.
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291 Changes in Cyclone 0.0083wip:
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292 + Added missing CHK opcode (used by SeaQuest DSV).
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293 + Added missing TAS opcode (Gargoyles). As in real genesis, write-back phase
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294 is ignored (but is enabled for other systems).
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296 Backported stuff from Snes9x:
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297 * Fixed Pxxx jog up/down which were not working in game.
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298 + Added an option to gzip save states to save space.
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299 + The emulator now pauses whenever it is loosing focus, so it will now pause
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300 when alarm/ponecall/battery low/... windows come up.
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301 - Removed 'pause on phonecall' feature, as it is no longer needed.
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302 + Video fix for asian A1000s.
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305 * Started using tools from "Symbian GCC Improvement Project", which give
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306 considerable speed increase (~4fps in "center 90" mode).
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307 * Rewrote some drawing routines in ARM assembly (gives ~6 more fps in
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309 * Minor improvement to 0 and 180 "fit" modes. Now they look slightly better
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311 * Minor stability improvements (emulator is less likely to crash).
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312 + Added some background for OSD text for better readability.
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313 + Added Pal/NTSC detection. This is needed for proper sound speed.
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314 + Implemented Reesy's DrZ80 Z80 emu. Made some changes to it with hope to make
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316 + Implemented ym2612 emu from the MAME project. Runs well but sometimes sounds
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317 a bit weird. Could be a little faster, so made some changes too.
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318 + Implemented SN76489 emu from the MAME project.
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319 + Added two separate sound output methods (mediaserver and cmaudiofb) with
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320 autodetection (needs testing).
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321 * Fixed VDP DMA fill emulation (as described in Charles MacDonald's docs),
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322 fixes Contra and some other games.
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326 * Launcher now starts emulation process from current directory,
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327 not from hardcoded paths.
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328 * Improved 'pause on call' feature, should hopefully work with Motorola phones.
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337 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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338 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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339 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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340 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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341 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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342 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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343 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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344 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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345 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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346 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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347 POSSIBILITY OF SUCH DAMAGE.
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notaz.gp2x.de / picodrive.git / blob