OpenMSX v22.0 is released. OpenMSX is an open source MSX emulator which is free according to the Debian Free Software Guidelines, available under the GNU General Public License.For copyright reasons the emulator cannot be distributed with original BIOS ROM images. OpenMSX includes C-BIOS a minimal implementation of the MSX BIOS, allowing to play quite some games without the need to have an original MSX BIOS ROM image. You can also use your own BIOS ROM image if you please.

OpenMSX Changelog:
Thanks to many contributors (who make good use of modern AI tools), we
have a very long list of changes again. Major features are found in the
debugger GUI, with a new Raster Beam Viewer and Tracer functionality. We also
have the Quick Setup Editor, for one-window access to all major setup
settings.
Then AI hit us with dozens of Pull Requests with new and improved
functionality... Not all purely AI-generated, but also using AI to analyse
bulk measurements. This led to many VDP accuracy improvements and emulation of
new devices like plotters, Panasonic FS-JH1 Joy Handle steering wheel (that
came with Konami's A1 Spirit), light guns, Franky, Makoto, SD Mapper V1 and
SM-X WiFi. There's even a synthetic TCP/IP UNAPI device to be able to try out
network programs in openMSX.
And many, many more things...
Special thanks to all the contributors of this release who are not in the core
team! Keep those pull requests coming!
Here's the list with all highlights and details:
MSX device support:
fixed Yamanooto SCC register visibility
added emulation of the Sony PRN-C41 (like) plotters, including a viewer in the
GUI
fixed details on the turboR's FDC emulation, so that now FastCopy 3.0
properly detects it, including the correct number of drives
added MSX Light Gun emulation, controlled with the mouse on the host:
MHT GUN-STICK
ASCII Plus-X Terminator Laser
added Korean 128-in-1 mapper type
added Namco mapper type (A13-not-connected 16kB cartridges)
added ASCII8-R (reversed) mapper type
fixed details of MSX kanji ROM emulation, adding specific behaviour in many
machines and devices
added Panasonic FS-JH1 Joy Handle (belongs with Konami's A1 Spirit),
including configuration window
added SuperSoniqs Franky emulation (allows playing Sega Master System games
on MSX)
added SuperSoniqs Makoto emulation (OPNA sound cartridge)
added SD Mapper V1 emulation
added SM-X WiFi emulation (UNAPI compatible ESP WiFi module), connecting
either to a real ESP32 on a host serial port or to an emulated one that uses
the host network
updated Neo mapper support to specification version 1.2, now using 14 bits
of the segment register (up to 16384 segments)
VDP:
fixed VDP I/O delay to 1 cycle for machines with a T9769 MSX-ENGINE (all
subtypes)
added implementation of the TEXT2-mode per line blink (bit 2 in VDP R#2)
improved timing correctness of the YMMM and LMMM commands
several other VDP command timing improvements (including start delays)
improved VDP-VRAM timing even further
fixed display line counter latch (fixes Sex Bomb Bunny shaking screen)
fixed border color changes at the wrong position (last part of Utopia)
fixed wrong location for sprite collision flag raising, causing distorted
MSX2+ logo animation
fixed 5th/9th sprite flag raise location, obsoleting the special openMSX
workaround in the IO demo
fixed wrong location of application of R#23 changes (8-pixel boundary)
fixed: ignore the TP bit in text, multicolor and YAE modes
PSG:
assume that no PSG implementation mirrors its registers (no evidence found
they do so far...)
fixed interpretation of envelope period of 0 (same as 1)
fixed: do not reset the envelope index when writing the envelope shape
register
added new machines/extensions, thanks to:
bsittler: Yamaha YIS-805/256
updated machine/extension configurations of:
Yamaha YIS-503
Yamaha FD-03, Sony HB-701FD: added missing singlesided tag
New or improved emulator features:
GUI:
added Quick Setup Editor window, that allows you to quickly create or
change your setup
added a "color blind" theme
added a pitch estimate column to the audio viewer (hidden by default)
sort mapper types in the GUI alphabetically
added "recent machines" to the Machine menu
added slot map viewer
added I/O ports viewer
in the Cartridge Slot window: added a link to Generation MSX where known
fixed history (recent items) for dir-as-disk
added ColecoVision controller configuration window
debugger (including its GUI):
allow to double-click a symbol in the Symbol Manager to jump to it in the
disassembly view
allow to double-click an instruction with address to jump to that address
in the disassembly view
fixed unstable layout of bitmap viewer when screenmodes change (split)
allow to specify a segment number for symbol files
tile viewer: allow override of the color table
added Raster Beam Viewer, which shows the currently in-progress raster
based screen, with coordinates, CRT fade, and position of the beam
with command engine busy overlay
added debug Tracer (console and GUI), with timeline plotting of events in
Trace Viewer
integration of Raster Beam Viewer and Tracer: show trace events on raster
rewrote vdpcmdtrace in Tcl, using the new VDP.command probe (output now
goes to stderr and its format changed)
rewrote cputrace in Tcl (output now goes to stderr, its format changed
and it is a lot slower)
added cpu_trace Tcl command which sets up traces that can be viewed in
the Trace Viewer
bitmap viewer: show y=[0..1023] again
sprite viewer: fixed sprite attributes section height when zoomed
added a profiler that uses the new Trace Viewer, see the symboltracer Tcl
command; tracing a function can also be toggled in the Symbol Manager
added option to export the ASCII view of the generic debuggable
editor/viewer
added visualization of line commands in the bitmap viewer
added 'romblock16' debuggable
fixed crash with I/O read watchpoints that remove themselves (e.g. with
-once)
added a generic bitmap viewer for any debuggable (from the Debugger menu or
the hex editor's context menu): configurable bits per pixel (1 to 32),
bit order and endianness, up to 2 levels of tiling with custom steps,
grayscale, palette and packed color formats, zoom, pixel/tile/group grids
(as lines or gaps) and a hover readout of address and value
added tile, sprite and register viewers for the Sega VDP of the Franky,
and debuggables for its registers, VRAM and CRAM (see doc/Franky.md)
instead of showing corrupted video, a problem with shaders will now be a
fatal error
fixed issues with non-ASCII paths by forcing UTF-8 paths on Windows
improved support for .ttc font files for the GUI
fixed bug where full-width characters could not be displayed correctly in the
console input line
added pop-up menus for tab completion, making it easier to complete items
like paths with non-ASCII characters
fixed bug with loading savestates with devices containing spaces in the name
fixed bug in CPU loadstate code (showed on Spectravideo SVI-328 for instance)
release cursor grab when openMSX is paused
fixed illegal slot specification as was in the CIEL Expert-Turbo machine for
years
fixed an out-of-bounds read in the HQ resampler
improved UI responsiveness when paused/breaked
fixed the pause_on_lost_focus setting which broke since openMSX 20.0
fixed crash when having built against sdl2-compat
fixed an out-of-bounds access when switching from SCREEN 8 to another mode
fixed crash when an 'after' command switches to another machine
fixed msxcode2unicode and other issues with Tcl 9
added 'tcl_bridge' command, which allows MSX software to execute Tcl commands
added 'openmsx_info software' to query the ROM database
added UnapiNet: an MSX-UNAPI TCP/IP bridge device. A synthetic device on I/O
ports 0x28/0x29 that implements the MSX-UNAPI TCP/IP UNAPI functions (DNS,
TCP, UDP, ICMP echo) by bridging to the host's BSD sockets. Needs a specific
UNAPINET.ROM driver on the MSX-side
keyboard fixes:
fixed the kbd_numkeypad_enter_key setting and added POSITIONAL mode support
fixed wrong auto-toggle CODE/KANA lock when the key is manually pressed
ignore the Grave key event for Japanese host keyboard layouts to avoid
hanging keys
added setting for Japanese Windows hosts to disable the IME interfering
with the keyboard emulation
fixed handling of MSX shift keys (2 identical MSX keys, 2 different host
keys), which caused problems on some systems
fixed mouse speed scaling, depending on the host display size (including
HighDPI) and MSX screen resolution
allow SD cards and SCSI disks also to be manipulated by disk manipulator
fixed several bugs in the cashandler script (to use CAS files directly)
added 'rs232-raw' pluggable that connects to host RS-232C port
added emulation of the MSXPi device
restored the possibility to query the names of the connected host joysticks
from Tcl ('openmsx_info joystick')
fixed saving a setup with a '/' in the (machine) name, like "Philips VG
8235/39" and similar issues with saving a screenshot/savestate/replay
added a Maze of Galious password extractor, to easily save passwords in text
files and type them in later with type_from_file
dir-as-disk:
added support for 40-track 180kB disk drives (e.g. Talent/AVT DPF-550)
fixed writing files back to host filesystem on no-op data-sector writes
stop using memory mapping of files on Windows, to avoid Windows preventing
developers from overwriting the files when openMSX still has them open
huge updates on the ROM database, including a simplified file format and
support for Sega SG-1000 and ColecoVision ROMs
Build system, packaging, documentation:
required GNU compiler is now at least g++-13
at least macOS 13.3 is required to run openMSX
the Android build is totally broken; getting it back up would require a lot
of effort and help, which we don't plan to do
3rd party updates of SDL (2.32.10), Dear ImGui (1.92.9 WIP)
added ccache support for faster compiling whilst developing on openMSX
macOS builds are now "notarized" and the installer DMG got a new look
the Windows installer is now built automatically, including Catapult
several fixes on the manual, e.g. debug subcommands and stale examples
...and of course the usual various bug fixes and performance improvements.
In "doc/manual/index.html" you can find a set of HTML manuals for openMSX.
Make sure to read this if you haven't used openMSX before, but also to learn
more about the new and changed features.
CPU and graphics performance varies a lot, depending on the openMSX settings
and the MSX hardware and software you're emulating. Some things run fine on a
200 MHz machine, others are slow on a 2 GHz machine. For performance tuning
tips, see the Setup Guide.
openMSX is confirmed to run on the following operating systems: Linux, Windows,
macOS, FreeBSD, OpenBSD and NetBSD; on x86, x86-64, PPC, ARM, MIPS and Sparc
CPUs. Running on other operating systems (wherever SDL and OpenGL 2.1 run) or
CPUs should be possible, but may require some modifications to the build
system. If you are compiling on a new platform, please share your experiences
(see below for contact info), so we can make openMSX more portable.
openMSX Home Page:
https://openmsx.org/
Project page on GitHub:
https://github.com/openMSX
Contact options:
File a ticket on https://github.com/openMSX/openMSX/issues
Use the forum on https://www.msx.org/forum/semi-msx-talk/openmsx
Talk to us on #openmsx on libera.chat or via Discord using the invite
https://discord.gg/JV56gzh2qG (the #openmsx-irc-bridge channel is the best
place to ask questions there)
Thanks to all contributors for their feedback, support, bug reports, testing,
coding and other help!
Have fun with your emulated MSX!
the openMSX developers

Download: OpenMSX v22.0
Source: Here