Xroar ist unter anderem ein Emulator für den Nintendo DS. Dieser kann den Dragon emulieren und Tandy Colour Computer (CoCo) models 1 & 2. Programmiert wurde das ganze von Ciaran Anscomb.
Changelog
Version 0.23, Mon Nov 30 2009
* Full CoCo RAM select emulation.
* Implemented SAM FAST mode.
* Fullscreen fixes.
* Better handling of -load and -run options.
* Include "dark orange" VDG text mode colour.
* Initial ALSA sound module (-ao alsa).
* Read a configuration file on startup.
* Sun audio fixes.
* Experimental curses user interface.
* Run first non-option argument.
* WD279x fix.
* Fixed segfault in SDL joystick code.
* Work around nasty hang bug in SDL's pulseaudio module.
* Add ROM search path to Windows build.
* Add -gl-filter option to select OpenGL texture filter.
* Support directly loading ASCII files (.bas, .asc) as gapped ASCII BASIC.
* Write-back support for VDK and JVC disk images.
* Request filename when creating a blank disk.
Version 0.22, Tue Dec 23 2008
* Feed audio output back to single bit sound input.
* Update GP32 build to use EABI libs and devkitARM crt0.
* Don't build DS stuff in thumb mode.
* Initialise RAM to pattern.
* Insert fake leader on tape change.
* Fix OpenGL texture "fringing".
* Sun audio fixes.
* Honour user-specified RAM size again.
* Fix WD2791/3 side compare plus other fixes to help CoCo NitrOS9.
* Find a machine the user has ROMs for if they don't specify.
* Add -load and -run options.
* Add simple joystick swap with Control+Shift+J.
* Disable fullscreen while showing a file requester.
* Replace README with a manual.
* Fake trailing leader byte for CAS files.
Version 0.21, Thu Apr 24 2008
* Fix border colour in RG6, CSS=0.
* Input abstraction layer.
* NDS: Render video as 4 x 3 grid of 4-bit colour sprites.
* NDS: Use NDS VCOUNT writability to lock display to 50Hz when appropriate.
* NDS: Major UI improvements.
* NDS: Sound support.
* GP32: Fix chatboard support with new state-machine based scanner.
* Trace mode fixes (SYNC, CWAI).
* Support changing of SAM RAM configuration.
* More accurate single-bit sound.
* Variable MPU rate support configurable.
Version 0.20, Wed Feb 27 2008
* Don't show artifacted colours for CSS=0.
* Better emulation of undocumented 6809 behaviour.
* New joystick axis and button mapping options.
* Add GTK+-2 file requester.
* Mid-instruction peripheral state sync.
* Restructure CPU core to more accurately reflect data sheet.
* PIA code not so intimately tied to emulator code.
* New 5-bit NTSC cross-colour renderer.
* NTSC cross-colour phase saved with snapshots.
Version 0.19, Tue Jun 26 2007
* WD279x Read Address command implemented.
* VDG fixes.
* Delta bugs in initialisation and drive select fixed.
* Better error reporting.
* Better compatibility with old snapshots.
* Performance improvements in OpenGL driver.
* DMK virtual disk reading bugfix.
* Virtual disk image file write support (DMK format only).
* Write protect toggles in SDL user interface.
* Attached virtual disk filenames written to snapshots.
Version 0.18, Fri Mar 9 2007
* New 'configure' script.
* New 'null' sound driver replaces 'rtc'.
* Initial support for Nintendo DS (NDS).
* Slight speed hacks for GP32/NDS.
* Correct amount of scanlines rendered.
* Added --version option.
* Fixed potential infinite loop in disk emulation.
* Single-density disk support.
* Ability to insert blank disks (Ctrl+Shift+[1-4]).
* DMK virtual disk format support.
* Premier Delta System DOS cartridge support.
* Added -dostype option.
Version 0.17, Tue Aug 15 2006
* Map '~' to Shift+'@' in translation mode.
* Hopefully fix windows32 build.
* Tape loading bugs fixed.
* Fix VDG accesses >32K.
* More accurately emulate Dragon 32 behaviour in map type 1.
* Added frameskip option (-fskip).
* Added rate limiter inhibit by holding F12.
Version 0.16, Tue Aug 8 2006
* Added -ram option.
* CRC16 fixes.
* RSDOS fixes.
* Video timing code updated.
* Added -pal and -ntsc options.
* Fixed 16-byte video modes.
* Fixed keyboard translation for Windows.
* Support an illegal indexed addressing mode accidentally used by the first
release of Glove.
* Support using audio files for cassette input.
* GP32 speed hacks (still not perfect).
Version 0.15, Sun Jun 25 2006
* All registers now local to 6809 core main loop.
* New indexed addressing code should be faster.
* Simplified module system.
* New cartridge code. Now usable on GP32.
* Semigraphics mode 6 implemented.
* Virtual cassette writing supported.
* While reading virtual cassettes, fake leader bytes are inserted when
cassette motor is turned on.
* Windows32 UI has separate save dialog.
* Timing issue with short branches fixed.
* WD2797 emulation now implements CRC16.
Version 0.14, Sat Oct 22 2005
* Implemented PAL timing for Dragon 32, Dragon 64.
* Added new machine, 'tano'.
* Implemented sub-scanline rendering (not GP32).
* Fixes to snapshot code.
* Fullscreen toggle added.
* AD CPU rate removed from GP32 build.
* New -snap option.
* Fix to Windows32 UI module (retains CWD).
* 6809 core optimisations.
Version 0.13, Fri Aug 26 2005
* Fixed OpenGL resize problem.
* Fixed OpenGL border alignment problem.
* Trace mode now disassembles instructions.
* Virtual floppy timings more accurate, 'formatting' supported.
* JVC virtual disk format supported.
* Preliminary CoCo disk support (some stuff works, NitrOS-9 doesn't).
* 6809-PIA interrupt interaction more accurate (fixes some games).
* Various command-line options added.
Version 0.12, Thu Jul 28 2005
* New OpenGL video driver. Allows architectures without Xv extension
but with fast 3D graphics card to do hardware scaling.
* Disk writing (in memory only).
* Address-dependent CPU rate implemented (GP32 clock rate upped to
80MHz to cope).
Version 0.11, Thu Jan 13 2005
* Modularised almost everything. Binary can contain multiple drivers
for video, sound and ui. User can pick one on startup and, hopefully,
switch between them on the fly.
* Added resizable SDL-YUV (Xv-accelerated where possible) video module.
* Added JACK sound module.
* Added NULL sound module (Linux-only: uses /dev/rtc to sync).
* Eliminated busy-wait from SDL sound module.
* Unified Unix and GP32 Makefiles.
* Added ability to simulate NTSC video artifacts for hi-res graphics.
* Sound fixes for unsigned audio interferes less with other audio.
* GP32 chatboard support (thanks to Mirko's SDK).
* Added 'translation' mode to SDL keyboard driver.
* Added French & German keyboard mappings for 'raw' mode to SDL driver.
* Ctrl+D (insert disk) replaced with Ctrl+[1-4] in SDL interface.
Version 0.10, Sun Jun 27 2004
* Fixed Sun audio code broken by v0.9.
* Fix SEX bug. Pretty much everything runs correctly now (including
Racer Ball, Rommel 3D, Android Attack).
* Stopped using GP32 SDK sound code, adapted some of Jouni 'Mr.Spiv'
Korhonen's code.
* Refactored code to something a little more logical.
* MacOS X 'Carbon' UI contributed by Stuart Teasdale.
* Use C99 types instead of SDL ones except in SDL-based drivers.
* Wrote faster GP32-specific VDG routines.
Version 0.9, Sat May 15 2004
* More timing fixes.
* Video rendering optimisations.
* s/LICENCE/COPYING/
* Basic GP32 menu system added.
* Ability to switch between Dragon and CoCo ROMs and keymaps.
* Can insert disks (but still only into drive 1).
Version 0.8, Mon May 3 2004
* Added GTK interface option (default) to Unix build.
* Timing fixes - most things play at a better speed now.
Version 0.7, Wed Apr 7 2004
* Added basic Unix joystick support (using SDL).
* PIA0 addressing more specific (D64-style), OS-9 boots!
* PIA implementation simplified.
* Debug level configurable at build time (defaults to "not too much").
* Keyboard handling changed; GP32 version will be easier to switch to
CoCo mode when the time comes.
Version 0.6, Thu Apr 17 2003
* Joystick support available in the GP32 version.
Version 0.23, Mon Nov 30 2009
* Full CoCo RAM select emulation.
* Implemented SAM FAST mode.
* Fullscreen fixes.
* Better handling of -load and -run options.
* Include "dark orange" VDG text mode colour.
* Initial ALSA sound module (-ao alsa).
* Read a configuration file on startup.
* Sun audio fixes.
* Experimental curses user interface.
* Run first non-option argument.
* WD279x fix.
* Fixed segfault in SDL joystick code.
* Work around nasty hang bug in SDL's pulseaudio module.
* Add ROM search path to Windows build.
* Add -gl-filter option to select OpenGL texture filter.
* Support directly loading ASCII files (.bas, .asc) as gapped ASCII BASIC.
* Write-back support for VDK and JVC disk images.
* Request filename when creating a blank disk.
Version 0.22, Tue Dec 23 2008
* Feed audio output back to single bit sound input.
* Update GP32 build to use EABI libs and devkitARM crt0.
* Don't build DS stuff in thumb mode.
* Initialise RAM to pattern.
* Insert fake leader on tape change.
* Fix OpenGL texture "fringing".
* Sun audio fixes.
* Honour user-specified RAM size again.
* Fix WD2791/3 side compare plus other fixes to help CoCo NitrOS9.
* Find a machine the user has ROMs for if they don't specify.
* Add -load and -run options.
* Add simple joystick swap with Control+Shift+J.
* Disable fullscreen while showing a file requester.
* Replace README with a manual.
* Fake trailing leader byte for CAS files.
Version 0.21, Thu Apr 24 2008
* Fix border colour in RG6, CSS=0.
* Input abstraction layer.
* NDS: Render video as 4 x 3 grid of 4-bit colour sprites.
* NDS: Use NDS VCOUNT writability to lock display to 50Hz when appropriate.
* NDS: Major UI improvements.
* NDS: Sound support.
* GP32: Fix chatboard support with new state-machine based scanner.
* Trace mode fixes (SYNC, CWAI).
* Support changing of SAM RAM configuration.
* More accurate single-bit sound.
* Variable MPU rate support configurable.
Version 0.20, Wed Feb 27 2008
* Don't show artifacted colours for CSS=0.
* Better emulation of undocumented 6809 behaviour.
* New joystick axis and button mapping options.
* Add GTK+-2 file requester.
* Mid-instruction peripheral state sync.
* Restructure CPU core to more accurately reflect data sheet.
* PIA code not so intimately tied to emulator code.
* New 5-bit NTSC cross-colour renderer.
* NTSC cross-colour phase saved with snapshots.
Version 0.19, Tue Jun 26 2007
* WD279x Read Address command implemented.
* VDG fixes.
* Delta bugs in initialisation and drive select fixed.
* Better error reporting.
* Better compatibility with old snapshots.
* Performance improvements in OpenGL driver.
* DMK virtual disk reading bugfix.
* Virtual disk image file write support (DMK format only).
* Write protect toggles in SDL user interface.
* Attached virtual disk filenames written to snapshots.
Version 0.18, Fri Mar 9 2007
* New 'configure' script.
* New 'null' sound driver replaces 'rtc'.
* Initial support for Nintendo DS (NDS).
* Slight speed hacks for GP32/NDS.
* Correct amount of scanlines rendered.
* Added --version option.
* Fixed potential infinite loop in disk emulation.
* Single-density disk support.
* Ability to insert blank disks (Ctrl+Shift+[1-4]).
* DMK virtual disk format support.
* Premier Delta System DOS cartridge support.
* Added -dostype option.
Version 0.17, Tue Aug 15 2006
* Map '~' to Shift+'@' in translation mode.
* Hopefully fix windows32 build.
* Tape loading bugs fixed.
* Fix VDG accesses >32K.
* More accurately emulate Dragon 32 behaviour in map type 1.
* Added frameskip option (-fskip).
* Added rate limiter inhibit by holding F12.
Version 0.16, Tue Aug 8 2006
* Added -ram option.
* CRC16 fixes.
* RSDOS fixes.
* Video timing code updated.
* Added -pal and -ntsc options.
* Fixed 16-byte video modes.
* Fixed keyboard translation for Windows.
* Support an illegal indexed addressing mode accidentally used by the first
release of Glove.
* Support using audio files for cassette input.
* GP32 speed hacks (still not perfect).
Version 0.15, Sun Jun 25 2006
* All registers now local to 6809 core main loop.
* New indexed addressing code should be faster.
* Simplified module system.
* New cartridge code. Now usable on GP32.
* Semigraphics mode 6 implemented.
* Virtual cassette writing supported.
* While reading virtual cassettes, fake leader bytes are inserted when
cassette motor is turned on.
* Windows32 UI has separate save dialog.
* Timing issue with short branches fixed.
* WD2797 emulation now implements CRC16.
Version 0.14, Sat Oct 22 2005
* Implemented PAL timing for Dragon 32, Dragon 64.
* Added new machine, 'tano'.
* Implemented sub-scanline rendering (not GP32).
* Fixes to snapshot code.
* Fullscreen toggle added.
* AD CPU rate removed from GP32 build.
* New -snap option.
* Fix to Windows32 UI module (retains CWD).
* 6809 core optimisations.
Version 0.13, Fri Aug 26 2005
* Fixed OpenGL resize problem.
* Fixed OpenGL border alignment problem.
* Trace mode now disassembles instructions.
* Virtual floppy timings more accurate, 'formatting' supported.
* JVC virtual disk format supported.
* Preliminary CoCo disk support (some stuff works, NitrOS-9 doesn't).
* 6809-PIA interrupt interaction more accurate (fixes some games).
* Various command-line options added.
Version 0.12, Thu Jul 28 2005
* New OpenGL video driver. Allows architectures without Xv extension
but with fast 3D graphics card to do hardware scaling.
* Disk writing (in memory only).
* Address-dependent CPU rate implemented (GP32 clock rate upped to
80MHz to cope).
Version 0.11, Thu Jan 13 2005
* Modularised almost everything. Binary can contain multiple drivers
for video, sound and ui. User can pick one on startup and, hopefully,
switch between them on the fly.
* Added resizable SDL-YUV (Xv-accelerated where possible) video module.
* Added JACK sound module.
* Added NULL sound module (Linux-only: uses /dev/rtc to sync).
* Eliminated busy-wait from SDL sound module.
* Unified Unix and GP32 Makefiles.
* Added ability to simulate NTSC video artifacts for hi-res graphics.
* Sound fixes for unsigned audio interferes less with other audio.
* GP32 chatboard support (thanks to Mirko's SDK).
* Added 'translation' mode to SDL keyboard driver.
* Added French & German keyboard mappings for 'raw' mode to SDL driver.
* Ctrl+D (insert disk) replaced with Ctrl+[1-4] in SDL interface.
Version 0.10, Sun Jun 27 2004
* Fixed Sun audio code broken by v0.9.
* Fix SEX bug. Pretty much everything runs correctly now (including
Racer Ball, Rommel 3D, Android Attack).
* Stopped using GP32 SDK sound code, adapted some of Jouni 'Mr.Spiv'
Korhonen's code.
* Refactored code to something a little more logical.
* MacOS X 'Carbon' UI contributed by Stuart Teasdale.
* Use C99 types instead of SDL ones except in SDL-based drivers.
* Wrote faster GP32-specific VDG routines.
Version 0.9, Sat May 15 2004
* More timing fixes.
* Video rendering optimisations.
* s/LICENCE/COPYING/
* Basic GP32 menu system added.
* Ability to switch between Dragon and CoCo ROMs and keymaps.
* Can insert disks (but still only into drive 1).
Version 0.8, Mon May 3 2004
* Added GTK interface option (default) to Unix build.
* Timing fixes - most things play at a better speed now.
Version 0.7, Wed Apr 7 2004
* Added basic Unix joystick support (using SDL).
* PIA0 addressing more specific (D64-style), OS-9 boots!
* PIA implementation simplified.
* Debug level configurable at build time (defaults to "not too much").
* Keyboard handling changed; GP32 version will be easier to switch to
CoCo mode when the time comes.
Version 0.6, Thu Apr 17 2003
* Joystick support available in the GP32 version.
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