X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Freadme.txt;h=a68fced0bef835665f248e1aaa730e3232ad079b;hb=4696954094ca11200b8b08e8a9bfb231cf21fb86;hp=2274642c55adcfbba80a6b6b4867041b4dbc40b9;hpb=a40308010482ca8674bb6ff8c7cf271098f2aebe;p=picodrive.git diff --git a/platform/readme.txt b/platform/readme.txt index 2274642..a68fced 100644 --- a/platform/readme.txt +++ b/platform/readme.txt @@ -1,14 +1,17 @@ +For help / comments / questions visit GP32X boards at: +http://www.gp32x.com/board/ + About ----- -This version of PicoDrive is another enhanced version of Dave's -Megadrive / Genesis emulator for Pocket PC, which now can also emulate -Sega/Mega CD. The original Dave's code was heavily modified (including -Cyclone core), parts of it were rewritten in asm, many features added, -accuracy increased. Sega/Mega CD emulation is mostly based on Gens code. -This version is aimed at ARM-based handheld devices, so ports exist for -GP2X handheld console, Symbian smartphones and other devices. +This is yet another Megadrive / Genesis / Sega CD / Mega CD emulator, which +was written having ARM-based handheld devices in mind (such as PDAs, +smartphones and handheld consoles like GP2X of course). The critical parts +(renderer, 68K and Z80 cpu interpreters) and some other random code is +written in ARM asm, other code is C. The base code originates from Dave's +(fdave, finalburn) PicoDrive 0.30 for Pocket PC. The Sega/Mega CD code is +roughly based on Stephane Dallongeville's Gens. How to make it run @@ -211,7 +214,29 @@ Symbian: Changelog --------- -1.2x +1.32 + + Added some new scaling options. + + Added ability to reaload CD images while game is running (needed for games + with multiple CDs, like Night Trap). + * Fixed DMA timing emulation (caused lock-ups for some genesis games). + * Idle loop detection was picking up wrong code and causing glitches, fixed. + * The ym2612 code on 940 now can handle multiple updates per frame + (fixes Thunger Force III "seiren" level drums for example). + * Memory handlers were ignoring some writes to PSG chip, fixed (missing sounds in + Popful Mail, Silpheed). + * Improved z80 timing, should fix some sound problems. + * Fixed a bug with sram register (fixes Phantasy Star 4). + * Added code for PRG ram write protection register (Dungeon Explorer). + * The memory mode register change in 1.31 was unsafe and caused some glitches in + AH-3 Thunderstrike. Fixed. + * Fixed a file descriptor leak. + +1.31 + * Changed the way memory mode register is read (fixes Lunar 2, broken in 1.30). + * Fixed TAS opcode on sub-68k side (fixes Batman games). + * File browser now filters out mp3s, saves and some other files, which are not ROMS. + +1.30 + ISO files now can be zipped. Note that this causes VERY long loading times. + Added data pre-buffering support, this allows to reduce frequency of short pauses in FMV games (caused by SD access), but makes those pauses longer. @@ -222,6 +247,8 @@ Changelog * Frameskipper was skipping sound processing, what caused some audio desyncs. Fixed. * Fixed reset not working for some games. + New assembly optimized memory handlers for CD (gives at least a few fps). + Also re-enabled all optimizations from 0.964 release. + + New idle-loop detection code for sub-68k. Speeds up at least a few games. 1.201 + Added basic cheat support (GameGenie and Genecyst patches).