Stella v3.0 - 模擬器

http://stella.sourceforge.net/

Stella v3.0 is released.Stella is a multi-platform Atari 2600 VCS
emulator.The Atari 2600 Video Computer System (VCS), introduced in 1977, was
the most popular home video game system of the early 1980's. Now you can
enjoy all of your favorite Atari 2600 games on your PC thanks to Stella!

Stella v3.0 changelog:
* Huge updates to the TIA emulation system. Illegal HMOVEs are now handled
correctly, resulting in improvements to many ROMs (thanks to Wilbert Pol for
many ideas and code for these improvements). All HMOVE emulation ′cheats′
were removed; the emulation is now cycle-exact in this area.
* Improved emulation of the Cosmic Ark ′starfield effect′, also used in
Stay Frosty; the emulation now looks very accurate.
* Many improvements to the normal TIA rendering code, fixing problems when
disabling certain graphical objects (certain objects were being misdrawn when
others were enabled/disabled).
* Improved TIA collision handling in the non-displayable area of the screen;
this fixes problems in RAMRacer ROM.
* Improved TIA redraw problems/graphical garbage when ROMs generate many more
scanlines than a real TV would allow; this fixes problems in Q-Bert and the
recent Playaround demo.
* Added ′Fixed Debug Colors′ option similar to the no$26k emulator. This
allows each graphical object to be drawn in a fixed color, more clearly
showing how the objects interact. HMOVE blanks are also shown in a different
color. The TIA now emulates a 7-color register model, allowing even shared
objects to show different colors. This is toggled with the ′Alt Comma′ key.
* Related to ′Fixed Debug Colors′, HMOVE blanks can now toggled during TIA
display with the ′Alt-m′ key.
* Added rewind functionality to the debugger, where states are saved after
each step/trace/scanline/frame advance. Pressing ′Alt-r′ or clicking the
new rewind button will undo up to 100 previous operations.
* Added ′electron beam indicator′ to the debugger TIA output. Basically,
this is a visual pointer indicating the position of the electron gun when
scanning the display.
* Added ability to completely disable fullscreen mode, which fixes problems
for some people where fullscreen mode was being entered even if it wasn′t
enabled.
* Added ′-joyallow4′ commandline argument and associated UI item to allow
all 4 directions to be pressed simultaneously on a joystick.
* Improvements made to the ROM launcher: the backspace key now goes to the
parent directory (this key can be remapped), and previously selected
directories are now automatically selected.
* Added support for 2IN1 bankswitching scheme, where two ROMs are present in
one binary. Currently supported are 2, 4, 8, and 16K ROMs.
* Added bankswitch support for the 6K version of Starpath/Supercharger ROMS.
This allows the 6K version of Cubis to run.
* Updated bankswitching schemes FASC and MB; they are now known as FA and F0,
respectively. This naming brings Stella in line with other emulators and
programming utilities.
* Fixed editing of cheats in the Cheat Dialog; the old cheat wasn′t being
removed.

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