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MEKA 0.73.
Version Emulateur
0.73
Date Mise a Jour
22/06/2010


Remarque
Meka emule les machines suivantes:
Sega Game 1000 (SG-1000)
Sega Computer 3000 (SC-3000)
Sega Super Control Station (SF-7000)
Sega Mark III (+ FM Unit)
Sega Master System (SMS)
Sega Game Gear (GG)
ColecoVision (COLECO)
Othello Multivision (OMV)


Note
90


 Périphériques pris en charge:

Graphisme/Multimédia:
 
Système:
          

Galerie
       

Derniers changements
MEKA 0.73
---------
- Updated MEKA license, data are now licensed under the same term as sources.
The license is now unrestrictive BSD-like. [Omar]
- Removed "k" and associated donation rambling from the documentation.
Donations are still welcome, at your own discretion.
- Emulation:
- Added support for "no bank switching" mapper. Used by Korean games such
as "FA Tetris" and "Flash Point" which write to $fffe-$ffff range for
its RAM usage but do not expect bank-switching. [Omar]
- Added support for Korean 8KB banks mapper. Used by Korean games ported
from MSX such as "Penguin Adventure", "Street Master" or "Won-Si-In". [Omar]
- SC-3000:
- Fixed the ;/+/RAD key not working on Sega Keyboard emulation under
certain host keyboard/OS configuration. Thanks Jacko. [Omar]
- Fixed crash in the X86 assembly implementation of the 32KB RAM mapper
writer when the upper 16 bits were not cleared by the Z80 emulator. [Omar]
- Debugger:
- Added "SYM @addr" command to search for symbols given an address. [Omar]
- Added "RMAP addr" command to reverse map of a Z80 address and display
the source of data based on machine state (mapper registers, etc).
eg:
RMAP $8001 ; eg: print 'ROM $14001 (Page 5 +0001)'
RMAP $E001 ; eg: print 'RAM $C001'
The feature doesn't work 100% in all mappers & bus mirroring cases,
but should be ok with the standard SMS/GG mapper. [Omar]
- Duplicate commands are automatically removed from history. [Omar]
- Increased default height of the debugger. [Omar]
- Changed watch point per-frame flood limit from 100 to 50. Will expose in
configuration file if requested. [Omar]
- Fixed crash when loading symbols with debugger disabled. [Djbass,Omar]
- Fixed labels showing one instruction early in "DASM" command. [Omar]
- Added breakpoint '!' mark in disassembly window. [Omar]
- GUI:
- Fixed Light Phaser and Terebi Oekaki cursor shape when switching from
32-bits GUI mode to 16-bits game only mode. [Omar]
- File browser: fixed positionning of BAD and HACK icons, which aren't
overlays anymore. [Omar]
- Added Canadian flag (for DB and File Browser). [Omar]
- Fixed crash when empty gradient range are specified in theme file. [Omar]
- File browser: country flag now displayed even on BIOS, Prototypes
or Homebrew images. [Omar]
- Inputs configuration: right-click on input source selection goes
backward, in addition to regular left-click to go forward. [Omar]
- Localization:
- Updated Dutch localization [Mark van Tilburg]
- Miscellaenous:
- Added "Capture" menu with screen capture menu access and options. [Maxim]
- Added "Capture All" mode, capturing all emulation frames to disk. [Maxim]
- Added "Include GUI" capture option. Disable to only capture game screen
when MEKA GUI is enabled. [Maxim]
- Renamed "Automatically crop and align screen captures" option to
more explicit "Crop and align screen captures to 8x8 boundaries".
Previous name was sounding too "cool" and was sometimes activated
by innocent users who then got their capture all cropped. [Omar]
- Added "screenshots_crop_scrolling_column" option in configuration
file (default to enabled), to disable cropping the empty left-most
column in horizontally scrolling games. [Omar]
- Project:
- (Win32) Fixed standard libraries used by debug builds (using unusual
combination led to various problems). Fixed various link warnings.
Fixed shared directories between DLL and No DLL builds. [Omar]
- Added and modified entries in the checksum and compatibility lists. [Omar]

MEKA 0.72
---------
- Updated k.
- Ports:
- Preliminary MacOSX port. [Proppy]
Compile and run under a x86-based MacOSX system. Missing sound (due
to Seal) and debugger (unknown problem to resolve).
Looking for someone who wish to improve and maintain this port.
- Video/Blitters:
- Upgraded everything to hi-color video modes and got rid of old,
8-bit indexed video modes. This is a major change in MEKA core.
Some of the benefits are:
- No more snow and/or color flickering on video card drivers
which disliked palette changes.
- Better integration with desktop (usually run faster).
- Getting possible to use various kind of graphics filters.
- No more hassle with color limitation for the programmer
(meaning more features implemented for the end-user).
- Finally possible to show all Game Gear colors at once,
and to implement LCD screen persistence (not yet done).
Some of the features above goes hand to hand with the blitter
system, which will be improved soon. [Omar]
- Fixed HQ2X stretched blitter when target output was not 16-bits. [Omar]
- Stretching works on all blitters. [Omar]
- Video depth, Vsync, Triple Buffering and Page flipping are now global
video settings, removed from each specific blitter. Greatly simplify
configuration and tweaking. [Omar]
- Triple buffering doesn't interfere with the refresh is not supported
by the current settings (eg: windowed mode), making it safe and more
simple to always leave it enabled. [Omar]
- Changed default fullscreen blitter configuration in the hope of getting
something more compatible (640x480 by default), as so many people have
problems with fullscreen modes.
- Removed obsolete "scanlines" blitter, in favor of "tvmode". [Omar]
- Removed "parallel" blitter that displayed both odd and even frame
next to each other. Seems useless now. Could be brought back if some
four-eyed person request it. [Omar]
- Sound:
- Added support for VGM 1.10 header type. [Omar]
- Emulation:
- Fixed data corruption/overflow in VDP emulation when seeking and
writing to an invalid palette address. Thanks Maxim. [Omar]
- VDP palette write do not mask out current VDP address, so performing
the (unprobable) set address/access palette/access VRAM sequence will
keep address in the full 16KB range. [Omar]
- Fixed VDP line interrupts not properly running in overscan area in
224 lines mode. Fixes bottom of the screen in Charles Mac Donald's
BB2K6 demo. [Omar]
- CPU:
- Z80: Fixed cases were address arithmetic would not wrap in the
16-bit address space, effectively crashing the emulator (those cases
were mostly happening on corrupted data, but it also legit Z80 code,
and in any case we don't want the emulator to crash). [Omar]
- Z80: Fixed RETI behavior (same as RETN, copying IFF2 to IFF1).
Fixes pausing in SMS Robocop 3 during legal screens/introduction,
probably other infrequent cases. [FluBBa, Omar]
- Z80: Accepting NMI doesn't copy IFF1 over IFF2, as suggested
by Sean Young's "The Undocumented Z80 Documented". [Omar]
- ColecoVision:
- Fixed emulation of pending NMI, pending flag is cleared when
reading VDP status. Fixes "Rock 'N Bolt" among other.
Thanks to the anonymous poster on SMS Power! forums. [Omar]
- Note that the compatibility list for ColecoVision titles is
severly outdated. At some point, James Carter worked on a new,
more accurate list, but I lost all contact with him.
- Removed detection of supposed 128-bytes headers and 512-bytes footers
(from some old soft/copiers?), due to many false detections,
particularly on homebrew ROM images (the code was introduced in 2001
when Dig Dug and Pac-Man prototypes were released with such header,
but ROM images now circulating are without the header). [Omar]
- GUI:
- Sorted default themes, removed non Sega 8-bit related themes.
Now embedding background pictures in regular binary distribution.
CALL FOR NEW OR IMPROVED THEMES SUBMISSION! Please contribute.
- KeyPad Enter key now works on input boxes. [Omar]
- Added shortcut CTRL-F4: closes current window. [Omar]
- Added shortcut CTRL-TAB: cycles thru windows taking inputs. [Omar]
- Reworked theme (skin) system from stratch: [Omar]
- Changed MEKA.THM file format.
- Using explicit names for variables.
- Added more variables, making the skin system a little more
complicated but also more configurable.
- Using de-facto standard of specifying colors in #RRGGBB format.
- Rewrote most code since it was all legacy from old MEKA 0.10.
- Added link to debugger documentation in HELP menu. [Omar]
- Removed closing fadeout since the current hi-color implementation
is way inefficient and cannot garantee proper speed. [Omar]
- Development:
- Debugger:
- Fixed various command-line parsing bugs. [Omar]
- Added line history. Navigate history by pressing Up/Down.
List or search in history using HISTORY (HI) command. [Omar]
- Added conditionnal breakpoints. [Omar]
eg:
BREAK r C000.. =01,02,03,04 1

*

Fixed CPSQ & CPS_Extra dat files.

#

GENERAL

*

Added some cheats, transparency tables and tracklists. V 2.6.186
- Correction du contrôle de la fréquence de SlimDX Audio.
- Amélioration du mode SlimDX Video pour être plus rapide.
- Ajout des mappers # 185, 187, 188, 189, 226, 228, 229, 230, 231, 232, 233, 240, 241, 242, 243, 244, 245, 246, 248, 249 et 251.
V 1.2 Final
- Edition finale pour la RetroEmu Summer Coding Competition.
- Proceshortcut to break on two successives NOP instructions.
This is basically equivalent to "B x =0,0". [Omar]
- REGS (R) command in debugger now display shadow registers as well. [Omar]
- Added cursor before current instruction in disassembly. [Omar]
- Added access to shadow registers in expression evaluator. [Omar]
eg:
PRINT AF',BC',DE',HL'
- Added SET command to modify Z80 registers. [Omar]
eg:
SET BC=$1234 ; set BC register to $1234
SET DE=HL,HL=0 ; set DE=HL, then zero HL
- Added MEMEDIT command to spawn a new memory editor. [Omar]
- Added CLOCK command, to display/reset a Z80 cycle counter.
Very simple but can be helpful to time Z80 routines. [Omar]
- (Win32) Forward debugging log to Windows debugging stream via
OutputDebugString(), so running MEKA from Microsoft Visual studio
will display log in the 'Output' window. [Omar]
- Memory Editor:
- Added viewing and editing of VDP registers (VREG). [Omar]
- Added configuration file directive for resizing window. [Omar]
- Fixed cursor position when inputing an address on last page. [Omar]
- Added NES PRAM support. [Omar]
- Tiles viewer:
- Added NES palette switching (8 palettes). [Omar]
- Tilemap viewer:
- Added tilemap viewer. [Omar]
Shows tilemap, hovering or clicking a tile shows specific info
about it, allows filtering BG/FG, disabling tile flipping, display
of scrolling box, with or without raster effects, manual selection
of tilemap address, etc.
- Made '$' default prefix for hexadecimal values in various places. [Omar]
- Datadump: [Ambil, Omar]
- Fixed "palette" dumping. Blue and green components were inverted.
Replaced dumping of target host RGB values by actual SMS/GG components.
- Added sprite pattern base address in "sprites" dumping.
- Cleaned Technical Information Viewer content, renamed a few fields
to their official names, removed redundant information. It's not
yet all clean. [Omar]
- Miscellaenous:
- Various fixes.
- Increased max length of directory/filenames. [Musuruan]
- Added "Automatically crop and align screen captures" option.
This option aligns screen captures on the nearest visible tile,
helping to simplify the process of creating game maps by pasting
captures next to each other. [Omar]
Note: May not work properly on game using scanline based effects.
- Updated various tidbits in the configuration file. [Omar]
- (Win32) Removed flickering from initialization message console. [Maxim]
- (UN*X) Renamed main executable to 'meka' (instead of 'meka.exe').
- Sources/Project
- (Win32) Added new targets supporting shared standard libraries. [Omar]
- (Win32) Updated Allegro library from WIP 4.1.18 to 4.2.0, including
various fixes/improvements:
http://www.talula.demon.co.uk/allegro/onlinedocs/en/changes.html
- (Win32) Now linking to zlib.lib instead of zlibs.lib (name for standard
static build of ZLIB). [Omar]
- Removed password encryption from MEKA datafile (became useless). [Omar]
- Fixed a bunch of warnings on higher warning levels. [Omar]
- Hacked a lot of old GUI code (box, widgets, menus among others), cleaned
and renamed various structures, replaced several usage of indexes by
pointers, added const qualifiers, rewrote parts of various applets,
got rid of some old obsolete code, etc. Hopefully broke nothing. [Omar]
- (Win32) Fixed MSVC project to reference LIBPNGDIR.
- (Win32) Including statically compiled libpng.lib in package. [Omar]
- (UN*X) No more need to manually edit .ASM files to compile. [Omar]
- Updated SOURCES.TXT documentation. [Omar]
- Added and modified entries in the checksum and compatibility lists. [Omar]


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