+For help / comments / questions visit GP32X boards at:\r
+http://www.gp32x.com/board/\r
+\r
\r
About\r
-----\r
\r
-This version of PicoDrive is another enhanced version of Dave's\r
-Megadrive / Genesis emulator for Pocket PC, which now can also emulate\r
-Sega/Mega CD. The original Dave's code was heavily modified (including\r
-Cyclone core), parts of it were rewritten in asm, many features added,\r
-accuracy increased. Sega/Mega CD emulation is mostly based on Gens code.\r
-This version is aimed at ARM-based handheld devices, so ports exist for\r
-GP2X handheld console, Symbian smartphones and other devices.\r
+This is yet another Megadrive / Genesis / Sega CD / Mega CD emulator, which\r
+was written having ARM-based handheld devices in mind (such as PDAs,\r
+smartphones and handheld consoles like GP2X of course). The critical parts\r
+(renderer, 68K and Z80 cpu interpreters) and some other random code is\r
+written in ARM asm, other code is C. The base code originates from Dave's\r
+(fdave, finalburn) PicoDrive 0.30 for Pocket PC. The Sega/Mega CD code is\r
+roughly based on Stephane Dallongeville's Gens.\r
\r
\r
How to make it run\r
\r
Changelog\r
---------\r
-1.2x\r
+1.32\r
+ + Added some new scaling options.\r
+ + Added ability to reaload CD images while game is running (needed for games\r
+ with multiple CDs, like Night Trap).\r
+ * Fixed DMA timing emulation (caused lock-ups for some genesis games).\r
+ * Idle loop detection was picking up wrong code and causing glitches, fixed.\r
+ * The ym2612 code on 940 now can handle multiple updates per frame\r
+ (fixes Thunger Force III "seiren" level drums for example).\r
+ * Memory handlers were ignoring some writes to PSG chip, fixed (missing sounds in\r
+ Popful Mail, Silpheed).\r
+ * Improved z80 timing, should fix some sound problems.\r
+ * Fixed a bug with sram register (fixes Phantasy Star 4).\r
+ * Added code for PRG ram write protection register (Dungeon Explorer).\r
+ * The memory mode register change in 1.31 was unsafe and caused some glitches in\r
+ AH-3 Thunderstrike. Fixed.\r
+ * Fixed a file descriptor leak.\r
+\r
+1.31\r
+ * Changed the way memory mode register is read (fixes Lunar 2, broken in 1.30).\r
+ * Fixed TAS opcode on sub-68k side (fixes Batman games).\r
+ * File browser now filters out mp3s, saves and some other files, which are not ROMS.\r
+\r
+1.30\r
+ ISO files now can be zipped. Note that this causes VERY long loading times.\r
+ Added data pre-buffering support, this allows to reduce frequency of short pauses\r
in FMV games (caused by SD access), but makes those pauses longer.\r
* Frameskipper was skipping sound processing, what caused some audio desyncs. Fixed.\r
* Fixed reset not working for some games.\r
+ New assembly optimized memory handlers for CD (gives at least a few fps).\r
+ Also re-enabled all optimizations from 0.964 release.\r
+ + New idle-loop detection code for sub-68k. Speeds up at least a few games.\r
\r
1.201\r
+ Added basic cheat support (GameGenie and Genecyst patches).\r
notaz.gp2x.de / picodrive.git / blobdiff