Multi-system emulator

August 21, 2006 - Mednafen 0.6.4 Released

0.6.4:

 

* Added somewhat experimental Neo Geo Pocket(Color) emulation based off code from NeoPop, heavily modified.

* GB: Fixed frame rate when sound is disabled.

* Added →, ←, ↑, and ↓ characters to the Lynx, GB, GBA, and PC Engine directional button names used for button configuration, to match the NES button names.

* PCE: Added setting "pce.adpcmlp", default value 0, that when enabled, will cause Mednafen to apply a lowpass filter to ADPCM sound output with a rolloff frequency dependent on the current ADPCM playback frequency. This makes ADPCM voices sound less "harsh", however, the downside is that it will cause many ADPCM sound effects to sound a bit muffled.

* PCE: Moved the OpenGL screen clearing code into the FlipOpenGL() function to fix a problem with some PCE games that use multiple resolutions per frame having a partially corrupted screen when the OSD was up.

* PCE: Fixed save state loading with save states created during a CDROM data transfer.

* Fixed a bug that was causing flickering OSD remnants to remain onscreen in fullscreen mode if the OSD was drawn outside of the game screen area.

* Fixed a bug in the resizing code for save state previews that was causing save state previews for the NES, GB, GBA, and Lynx to look absolutely horrible.

* Assigned the two keys "-"(not the numpad instance) and "=" to functions "decrement selected save state slot" and "increment selected save state slot", respectively.

* Removed the checks preventing save state usage when playing NSFs, since save states may be useful with NSFs in some circumstances.

* Added a new setting "ckdelay", which controls the length of time, in milliseconds, that a button/key corresponding to a "dangerous" command like power, reset, exit, load state, etc. must be pressed before the command is executed. The default value is 0.

* Input mapping configuration is now saved after argument parsing if there is no game to be loaded, allowing a command like "mednafen -inputcfg pcegamepad1" to work properly.

* The message "Configuration finished." will now be displayed when button mapping for the selected input device is complete when using the in-game configuration process.

* PCE: Fixed a bug in the debugger involving disassembling block memory transfer instructions(effectively, the length was being fetched 1 byte too early).

>> Get it HERE.

Emerson Arcadia emulators

Changes since 1.51:

 

* Pixel-accurate collision detection.

* Improved noise emulation (Amiga version).

* Improved timing (Amiga version).

* Improved RETE instruction emulation.

* Bug Fixes.

>> Get it HERE (about halfway down the page)

Sega emulator

HazeMD 0.04a

 

Haze Megadrive Emu 0.04a

————————

 

Added a callback to the 68k TAS instruction, this allows Gargoyles and Ex-Mutants to work again and is cleaner than the previous solution of simply hacking out the TAS writeback in all cases.

 

Also added a couple more parent-clone relationships.

>> Get it HERE.

Saturn emulator

0.6.0 -> 0.7.0

cart:

- Added Action Replay flash emulation.

cd block:

- Fixed Read Directory/Change Directory commands. This fixes Duke Nukem 3D

and a few others that have Netlink support.

- Audio data is no longer stored when read by the cd block. This fixes

Guardian Heroes.

- other bug fixes.

scsp:

- Added function that allows developers to get easy to read information on

the requested scsp sound slot.

- Fixed a bug where the phase wasn't getting updated if DISDL was set to 0.

This fixes Falcom Classics, Nadesico, and many other games using ADX.

- Fixed a bug that was causing OCT with a setting of 0x8 to play at the

wrong octave.

- Fixed a bug that was causing King of Fighters 95(and possibly others) to

go into an endless loop.

scu:

- Improved SCU interrupt handling.

sh2:

- Fixed a bug in exts.b opcode.

- Corrected some bugs in sh2idle

- SCI emulation improvements

smpc:

- Added proper DOTSEL reporting.

- Region settings are now properly preserved.

- Changed region autodetection so it defaults to the japanese region if

it can't autodetect.

68k:

- Fixed a few bugs.

vdp2:

- Debug info bug fixes

- Implemented one mode of external HV latching. This fixes King of Fighters

95.

- External latch and sync flags are now cleared on TVSTAT reading.

- Added speed throttle(basically skips 6 frame draws).

- Added long writes for VCSTA, LSTA0, and LSTA1 registers.

software video core:

- Rewrote it so it's no longer dependent on SDL.

- Added NBG2/NBG3 support.

- Added tile mode rendering.

- Added frame buffer emulation.

- Added normal sprite drawing.

- Changed Normal Sprite drawing so that Scaled Sprite and Distorted Sprite

functions can use it too.

- Added some support for Scaled/Distorted Sprites.

- Added VDP1 Polyline and Line drawing to Software renderer.

- Fixed a bunch of bugs.

opengl video core:

- Fixed a few issues with OpenGL initialization.

- Fixed a window/fullscreen bug.

- Added a smart Line Scroll/Vertical Cell Scroll interpreter.

- Changed Color Offset so it uses the same method as the Software renderer.

- Fixed Rotation Table reading.

- Fixed a bug in VIDOGLVdp1PolylineDraw where coordinate reads were writing

to invalid areas.

linux port:

- Removed some useless debug messages and fixed the "quit" menu entry.

- Added vdp1 debug dialog in new gtk interface.

- Added dialog for sh2, video core switching.

- Added reset menu entry.

- Added about dialog.

- Added MSH2 and SSH2 debug dialogs to the GTK interface.

- Added transfer dialog to the new gtk ui.

- Added empty Memory Dump dialog.

- Added the dialog box for scsp

- Added shortcut F7 for command Step

- Added support for memory breakpoints in sh2 debug dialog

- Sound is now muted when emulation is paused (in gtk interface).

- The window data is now saved while emulation is paused.

- Screenshot function added.

macos port:

- Added carbon interface

- Can now build .dmg image from .app directory

- Other improvements

windows port:

- Added SCSP Debug Dialog.

- Added Reset option to menu.

- Now uses DirectInput and DirectSound instead of SDL.

- Added dialog for video, sound and input core switching.

- Fixed window/fullscreen switching.

- Added support for memory breakpoints in sh2 debug dialog.

- Sound volume can now be adjusted in the settings dialog.

- Sound is now muted when dialog window has focus.

- Auto frameskip can be be enabled via video settings menu.

- Other bug fixes.

general:

- Better handling of NULL string when opening a file

- Fixed a few memory leaks

- ISO support fixes

- PAL support added

- Fixed v-blank timing

- Added auto frameskipping(still not working correctly)

- Improved sound buffering

- Fixed handling of invalid SH2 opcodes

- Dummy sound core bug fixes

- Fixed some warnings

- Added experimental bios emulation

- Added memory breakpoints

- Added a function to the sound cores for setting the volume.

>> Get it HERE.