[ATARI] Atari800 6.1.0 21/06/2026

Atari800 6.1.0 21/06/2026

New features:

• Alt+J opens Joysticks/Controller Configuration directly
• Save Configuration moved to root F1 menu
• Screenshot entries consolidated (Shift+F10 hint in label)

Platform specific:

• SDL: Alt+J hotkey added back

Atari800 6.0.0 19/06/2026

New features:

• SDL2 support — SDL2 is now the primary SDL target. Selected automatically
  when both SDL1 and SDL2 are available. Includes:
  • OpenGL shader support and improved rendering
  • SDL2 controller button configuration (map buttons to actions, D-pad UI)
  • Correct keyboard handling (CAPS-Lock, control letters, HELP with modifiers)
• NetSIO / FujiNet support — network SIO over UDP, enabling connectivity with
  FujiNet devices. Supports high-speed divisors, PROCEED signal, port sharing
  (SO_REUSEADDR), and Windows (Winsock2). Configurable port via -netsio_port.
• Paddle controller support (SDL2-only):
  • New JOY_MODE_PADDLE mode on any Atari port
  • Per-port configurable pot axes and fire buttons
  • Config keys: JOY_PORT_{0-3}PADDLE_AXES, JOY_PORT{0-3}_PADDLE_BUTTONS
• Joystick configuration reorganised by Atari port (SDL2):
  • Each of the four Atari ports can be independently assigned an input source
    (None, Keyboard 1/2, host joystick, paddle, parallel port)
  • New config keys: JOY_PORT_{0-3}_{MODE,PARAM,NAME}
  • Host joysticks opened into a flat pool, assigned by name for persistence
  • Automatic smart defaults: if host joysticks are detected they are assigned
    to ports; otherwise port 0 defaults to keyboard
• Support for J(atar)Carts & DCart cartridge types
• Alternative key mapping for Atari 5200 Bounty Bob Strikes Back!
• Turbo speed selection and quick save/load state
• libatari800 API extensions: mount_disk(), unmount_disk(), disable_drive(),
  disk activity callbacks, SIO patch control
• Monitor command enhancements: summaries and error codes added

Changes:

• Sound system refactored:
  • VOL_ONLY_SOUND code removed (was unused and poor quality)
  • SYNCHRONIZED_SOUND and SOUND_THIN_API now forced on
  • SERIO_SOUND code removed
• CPU emulation refactored for readability
• Delayed NMI handling implemented per Altirra Hardware Reference Manual
• SDL2: Removed -joy-distinct option (no longer needed with per-port assignment)
• SDL2: Removed -joyswap / Alt+J swap joysticks shortcut
• SDL: window stays open while using the monitor
• SDL: joystick subsystem initialized only when needed
• Falcon: -interlace parameter removed (use -refresh instead)
• Falcon/FireBee: switched to m68k-atari-mintelf-gcc, usound routines
• CAS/XFD detection order corrected
• Host device letter input validation

Bug fixes:

• Fix ATX handling on command line (bug since 2009, fixes #218)
• Fix XF551 Get Status command (SuperDOS 5.1 timeout, fixes #190)
• Fix Corina and other size-based BIN file loading (fixes #258)
• Fix harmful typo in gtia.c (fixes #163)
• Fix zero-length Fuji chunk read in img_tape.c
• Fix Falcon/FireBee build
• Fix compilation with --without-opengl and --with-sound=no
• Fix make clean
• Various compiler warning fixes

Platform specific:

• Android: Complete overhaul — renamed to cz.pstehlik.colleen,
  SAF-based storage (no more FileSelector), Material Design icons,
  high-DPI console key scaling, auto-rotation, notch/cutout support,
  state save/load reworked, CMake/Gradle build system,
  BT and USB joysticks supported (up to four).
• win32: DirectX/DirectDraw/GDI backend removed (use SDL on Windows).
• Windows: NetSIO support via Winsock2 (netsiowin.c).
• Falcon/FireBee: keyboard fixes, sound improvements, compiler update.
• Dreamcast: redundant sound flag removed.
• CI: Windows, macOS 14 arm64, and Ubuntu 20.04 build workflows added.

Atari800 7.0.0 27/06/2026

the first Atari800 with built-in Internet downloads

New features:

• Auto-download missing OS/BASIC ROMs from the Internet
• Mount zipped disk images directly from the Internet
• Portable mode — config file and data storage next to the executable

Platform specific:

• Windows: 32/64-bit builds, installer executable, portable zip archive
• Windows: app icon, MP3 recording support
• Windows: win32-no-network build for XP compatibility
• macOS: ready-to-run .dmg archive
• Linux: AppImage builds (x86_64 + i386)
• Android: auto-download ROMs, upgrade dialog

Changes to config file search order:

1. --config argument — exact path given on command line
2. Portable exe dir — exe_dir/.atari800.cfg if exe dir is writable
3. $HOME default — ~/.atari800.cfg (if neither of the above applies)
   plus $HOME now respects MS Windows specifics (USERPROFILE etc.)
   If the resolved path (1, 2, or 3) doesn't exist:
4. HOME fallback — try ~/.atari800.cfg (only in portable mode)
5. System-wide — /etc/atari800.cfg (only if steps 1-4 all failed)
6. Fresh defaults — create new config at the path from step 1/2/3

Atari800 6.1.0 21/06/2026

New features:

• Alt+J opens Joysticks/Controller Configuration directly
• Save Configuration moved to root F1 menu
• Screenshot entries consolidated (Shift+F10 hint in label)

Platform specific:

• SDL: Alt+J hotkey added back

Atari800 6.0.0 19/06/2026

New features:

• SDL2 support — SDL2 is now the primary SDL target. Selected automatically
  when both SDL1 and SDL2 are available. Includes:
  • OpenGL shader support and improved rendering
  • SDL2 controller button configuration (map buttons to actions, D-pad UI)
  • Correct keyboard handling (CAPS-Lock, control letters, HELP with modifiers)
• NetSIO / FujiNet support — network SIO over UDP, enabling connectivity with
  FujiNet devices. Supports high-speed divisors, PROCEED signal, port sharing
  (SO_REUSEADDR), and Windows (Winsock2). Configurable port via -netsio_port.
• Paddle controller support (SDL2-only):
  • New JOY_MODE_PADDLE mode on any Atari port
  • Per-port configurable pot axes and fire buttons
  • Config keys: JOY_PORT_{0-3}PADDLE_AXES, JOY_PORT{0-3}_PADDLE_BUTTONS
• Joystick configuration reorganised by Atari port (SDL2):
  • Each of the four Atari ports can be independently assigned an input source
    (None, Keyboard 1/2, host joystick, paddle, parallel port)
  • New config keys: JOY_PORT_{0-3}_{MODE,PARAM,NAME}
  • Host joysticks opened into a flat pool, assigned by name for persistence
  • Automatic smart defaults: if host joysticks are detected they are assigned
    to ports; otherwise port 0 defaults to keyboard
• Support for J(atar)Carts & DCart cartridge types
• Alternative key mapping for Atari 5200 Bounty Bob Strikes Back!
• Turbo speed selection and quick save/load state
• libatari800 API extensions: mount_disk(), unmount_disk(), disable_drive(),
  disk activity callbacks, SIO patch control
• Monitor command enhancements: summaries and error codes added

Changes:

• Sound system refactored:
  • VOL_ONLY_SOUND code removed (was unused and poor quality)
  • SYNCHRONIZED_SOUND and SOUND_THIN_API now forced on
  • SERIO_SOUND code removed
• CPU emulation refactored for readability
• Delayed NMI handling implemented per Altirra Hardware Reference Manual
• SDL2: Removed -joy-distinct option (no longer needed with per-port assignment)
• SDL2: Removed -joyswap / Alt+J swap joysticks shortcut
• SDL: window stays open while using the monitor
• SDL: joystick subsystem initialized only when needed
• Falcon: -interlace parameter removed (use -refresh instead)
• Falcon/FireBee: switched to m68k-atari-mintelf-gcc, usound routines
• CAS/XFD detection order corrected
• Host device letter input validation

Bug fixes:

• Fix ATX handling on command line (bug since 2009, fixes #218)
• Fix XF551 Get Status command (SuperDOS 5.1 timeout, fixes #190)
• Fix Corina and other size-based BIN file loading (fixes #258)
• Fix harmful typo in gtia.c (fixes #163)
• Fix zero-length Fuji chunk read in img_tape.c
• Fix Falcon/FireBee build
• Fix compilation with --without-opengl and --with-sound=no
• Fix make clean
• Various compiler warning fixes

Platform specific:

• Android: Complete overhaul — renamed to cz.pstehlik.colleen,
  SAF-based storage (no more FileSelector), Material Design icons,
  high-DPI console key scaling, auto-rotation, notch/cutout support,
  state save/load reworked, CMake/Gradle build system,
  BT and USB joysticks supported (up to four).
• win32: DirectX/DirectDraw/GDI backend removed (use SDL on Windows).
• Windows: NetSIO support via Winsock2 (netsiowin.c).
• Falcon/FireBee: keyboard fixes, sound improvements, compiler update.
• Dreamcast: redundant sound flag removed.
• CI: Windows, macOS 14 arm64, and Ubuntu 20.04 build workflows added.

GUI A800 ma swoje lata ale... robi robotę, czasami wydaje mi się, że jest nawet bardziej intuicyjne niż w Altirra.

Atari800 Version 5.2.0 (2023/12/29)

New features:

• possibility of renaming the host device "letter" from previously hardcoded
  H: to any letter but C: (cassette), E:, K: and S:
  So if you have e.g. a program with hardcoded "D:" (as for diskette) you
  can now use it on a host device as well by renaming the host device to D:
  either via the Emulation configuration -> Host device settings menu
  or using command line option

  -Hdevicename <X>

• little thing but useful (for me at least): tooltip in the settings
  menu that reminds users there are virtual host devices with
  automatic ATASCII<->ASCII conversion (mainly end-of-line character).

  Extremely useful for all text files including ATARI BASIC source code
  that can be stored using LIST "H6:PROGRAM.LST" and read back using
  ENTER "H6:PROGRAM.LST" (H6 = H1 with ASCII conversion, etc.).

Atari800 Version 5.1.0 (2023/12/28) - released at SILK

Thanks to all the contributors (see git log for each commit author)

New features:

• New command line options:
  -playbacknoexit => don't exit the emulator after playback finishes

  -joy-distinct => allows larger number of joysticks by not combining multiple physical
  devices into a single emulated joystick. For example this allows using
  keyboard to emulate one or two joysticks, and to use these in conjunction
  with physical SDL joysticks / controllers in order to play with more people
  than there are SDL joysticks. The same logic gets applied to LPT joysticks,
  these come after joysticks from keyboard emulation.

  Furthermore, the logic also gets applied to put SDL joysticks after LPT
  joystics even when the command line flag isn't set. Since LPT joysticks
  take precedence over SDL joysticks on the same emulated device, this takes
  a device that was completely ignored before and makes it useful now.

  The assignments are fixed at program start-up, after config file and command
  line flags have been taken into account. If the UI is used to enable or
  disable a keyboard-emulated joystick, this can cause an emulated joystick
  to be controlled by multiple physical devices, or by none.

• Swap also SDL joysticks on AltL+J

  This swaps all physical devices connected to the first two emulated
  joysticks: the keyboard keys, the SDL devices, and the LPT devices.

  After the swap the real joystick / hat setting in the UI will appear swapped
  as well, but the keyboard setting won't (fixes #156).

• Show all input events on a single line during recording

  This way the recording file alternates between two forms of lines: input
  lines which contain all keyboard and joystick events in one line, and output
  lines with the screen content digest. By filtering out the former, the
  latter can be aggregated nicely, e.g. using a command like this:

  zcat ${file:?} | grep -vE '^[0-9A-F]{8} *$' | uniq -c

  Consecutive frames of equal input state will be represented as a single row,
  with a repeat count giving an idea for how long the state was maintained.

• RAM cartridges implementation (#184)

  • Many RAMCART and one SiDiCar cartridges
  • Support for writeable cartridges
  • CART monitor command
  • Make blank cartridge UI option
  • Reserved CART file ids for additional cartridge types currently unemulated by Atari800,
    added also the description of the types

• added XEX reading in monitor (useful for patches)

• Added H: device rename; save it in setup file (#204)

Changes:

• Altirra OS updated to v3.41
• Altirra BASIC updated to v1.58
• Fix buffer over-read in generate_partial_pmpl_colls (#165)
• Atari ST/TT/Falcon optimizations
• Fixed keystrokes for inserting/deleting of line/character (#179)
• SIO now resets BRKKEY (fixes Arsantica 3 demo)
• Fix for issue #199 (BBSB warp doesn't work)
• Fixes CTRL and CAPS keys when using SDL12-compat library.
• DOC/README.RPI explains clearly support for various RaspberryPis

Rush'n Attack (a.k.a. Green Beret) (Imagine Software, 1986)

Version 4.0.0 (2018/04/21) - release cooked at Atariada.cz

This release brings four years of hard work of fellow Atari800 developers on improvements and bugfixes of our favorite Atari emulator.

Ports to Atari ST/TT/Falcon, Android, Raspberry Pi and Sega Dreamcast have been improved (some of them greatly).

CPU, SIO, ANTIC, GTIA, POKEY and PIA emulation has been corrected.

Atari800 now includes Altirra BIOS so it is now possible to run *some* programs even without installing the original ROM files.

The total number of changes is so huge that major version bump was necessary.

Contrary to usual NEWS entries here follows a very incomplete list. It might be updated in later releases. In the meantime please read DOC/ChangeLog and the commit history in git for complete list of changes.

This release contains breaking changes in color handling. Users updating from an earlier version should reset their color settings, or else the display might be unreadable. To reset the color settings, do one of these:

• Select one of the presets available in the menu option "Display settings"-> "Color preset";
• or Run atari800 with the -color-preset command-line option, e.g.: atari800 -colors-preset standard;
• or Delete the emulator's config file (.atari800.cfg). Caution: you'll lose all Atari800 settings!

New features:

• Support for loading of CAS images with "fsk" chunks - images of copy-protected tapes can now be loaded, with SIO patch being disabled.
• Bit3 Full View 80 Column card emulation.
• New cartridge type 68: "Atrax 128 KB cartridge". Previously existing cartridge type 17: "Atrax 128 KB cartridge" was based on a misconception - real Atrax cartridges have their address and data lines intermixed, so type 17 could not be used with actual ROM dumps. So, type 17 has been renamed to "Decoded Atrax 128 KB cartridge", and new type 68 has been added, whcih now can be used for Atrax ROM chip dumps.
• New cartridge types supported:
  • aDawliah 32 KB cartridge
  • aDawliah 64 KB cartridge
• new command line switch "-volume" (for 16bit sound output) that can set the output volume of the Atari 800 emulator with value from 0 to 100.

Changes:

• The Sound Settings option "Fragment size" has been renamed to less cryptic "Hardware buffer size".
• Total emulator volume is lower now because the output has been shifted in order to fix a possible annoying humming sound in silence on some receivers (TV sets).

Fixes:

• Fixed computation of gamma adjustment - now it is applied to each of the three RGB channels separately.
• On systems that support synchronized sound: Fixed the emulator crashing when Dual POKEY was enabled while High Fidelity POKEY was turned off.
• Improve screen update routines in the Dreamcast port. They don't use DIRTYRECT anymore but are faster than the old routines when the whole screen is dirty.