#openMSX

Thomas Cherryhomestschak@oldbytes.space
2025-10-26

Work continues on the #FujiNet WiFi adapter for #MSX bring-up. Low level communications are stabilizing,
and the configuration program starts to work. #OpenMSX is being used as the initial emulator.

#retrocomputing

Dr. Juande Santander-Velajuandesant@mathstodon.xyz
2025-07-24

Bueno, lo conseguí: primera vez que consigo ganarle a la máquina en el justo de futbol de KONAMI… y tuvo que ser en un emulador, en este caso openMSX, que es ideal cuando uno tiene una ROM que ejecutar.

openmsx.org/

ps. @runjaj, mandaste mi productividad a la porra 😉

#MSX #openMSX #Konami #KonamiSoccer
#コナミ #サッカー #RetroComputing #RetroGaming #emulation

Snapshot of a macOS window titled openMSX 20.0 - C-BIOS MSX2+

The image has a black background, and the top 3/5ths of the screen are dominated by a square (done by characters that might resemble a bold bullet point, •) titled Score Record.

Inside, you can find the following centered text:

LEVEL 1
STONES 01-03 EAGLES
WINNER EAGLES

The Winner Eagles text is accompanied by a cheerleader.
2025-07-13

@janbeta and from an 'enjoying games' perspective emulation can also offer features the real thing can't. I'm all for genuine achievements and non-TAS-speedruns, but sometimes I just want to be able to finally get through a game from my childhood without having to struggle through obstacles that were introduced to pad game time, or lack of easy save options because the hardware/software just didn't offer it.
Being able to use #openMSX's reverse functionality and savestates has made many a game more enjoyable, and the save replay function has meant I've been able to easily share recordings of end demos or hidden things others might not have seen before.
@iThreepwood

The animated "power-up pill" (with an "OR-colour" palette) is made of two sprites. #msx #8bit #msx2 #arkanoid #gamedev #retrogames #openMSX

An OpenMSX debug window displays two combined sprites (in a 3-colour result using OR-colour combinations) for an animated "Slow" energy pill.

Following up on the last improvement, I created some context menus that copy sprite pattern and colours too. Yet another nail to the old debugger coffin, I hope. #openMSX #msx #debugger #gamedev #dev #emu github.com/openMSX/openMSX/pul

PR#1899
Context menu that copies pattern and colour to clipboard
github.com/openMSX/openMSX/pul #openMSX #debugger #tileset

Context menu visible in Tile Viewer widget.

Improving breakpoint management in openMSX. #openmsx #debug #msx #gamedev #emulation

New openMSX Breakpoint GUI interface options to save and load all breakpoints from the menu. Automatic saving and loading are there as well.

Fixing ugly palette widget in OpenMSX. #openMSX #msx #debugging #widget #dearImgui

Above image shows that the coloured buttons in the palette widget had no borders and the selected button was cropped. Below image show these two problems fixed.

Basic session management is almost ready. github.com/openMSX/openMSX/pul

Commands: save_breakpoints, save_watchpoints, save_conditions, load_breakpoints, load_watchpoints and load_conditions all available on openMSX console. #openmsx #z80 #debug #msx #gamedev #programming #debugging

I wrote a Tcl script that allows C developers to create C-aware breakpoints on OpenMSX console. You just need to compile your code with -debug to create a file with symbols and their respective addresses. It works just like gdb. More information: github.com/openMSX/openMSX/pul #msx #gamedev #msx2 #openmsx #debugger

Yet another tool that performs SDCC/OpenMSX integration. github.com/openMSX/openMSX/pul #openMSX #sdcc #retrodev #msx

2024-12-01

openMSX TSX, the fork of openMSX by nataliapc and company, which supports the TSX tape format (tsx.eslamejor.com/) has been updated to 0.20 version 🙂

This fork is available for Windows, Linux and macOS.

github.com/nataliapc/openMSX_T

As you can see in the screens I've tested Laserdisc games (yes, it's possible 😄), floppy, catridge and tape (TSX, it supports CAS also) and all of them have worked flawlessly 🙂

#MSX #OpenMSX #Emulation #Videogames

Astron Belt, a LaserDisc game by Sega for MSX. Title screen.Bubble Rain, a floppy game for MSX 2, running on OpenMSX emulator. Title screen.Ark-a-Noah for MSX 2, catridge version. Running on openMSX. Title screen.Arkanoid for MSX, tape version, running from a TSX tape image. At the right side, virtual tape deck of openMSX is shown.
2024-12-01

openMSX TSX, la versión derivada "fork" de openMSX realizada por nataliapc y compañía, que también soporta el formato TSX (tsx.eslamejor.com/) ha sido actualizada a la versión 0.20 🙂

Está disponible para Windows, Linux y macOS.

github.com/nataliapc/openMSX_T

Como veréis en las pantallas, he probado juegos en Laserdisc (sí, se puede 😄), disquete, cartucho y cinta (TSX, también permite CAS) y han funcionado perfectamente 🙂

#MSX #OpenMSX #Emulation #Videogames

Pantalla de título de Astron Belt de Sega, un juego LaserDisc para MSX.Pantalla de título de Bubble Rain para MSX 2, en disquete.Pantalla de título del cartucho para MSX 2 Ark-A-Noah de Matra.Pantalla de título de Arkanoid de MSX, leído desde una imagen de cinta TSX. Aparece el reproductor de cintas de OpenMSX en la parte derecha.

Here is an idea that I think is useful: ability to disassemble any Tcl string that you want, not only the stuff from main memory. #openmsx #openmsxDebugger #msx #z80

Pull request feature in action

Along with PR #1709, I guess the basic features of the debugger are close to complete. github.com/openMSX/openMSX/pul #openMSX #openmsxDebugger #msx #debugger

Another week, another pull request. Thanks go to Giovanni Nunes (plainspooky on github) for the test code that made this PR possible. github.com/openMSX/openMSX/pul #openMSX #openmsxDebugger #msx #debug #debugger #emulator

My next idea improving OpenMSX is a simple code analyser widget: github.com/openMSX/openMSX/pul
#debug #openmsxDebugger #gamedev #openmsx #msx #emulation

Improved debugging on OpenMSX by allowing programmers to create breakpoints from symbols in the symbol manager. github.com/openMSX/openMSX/pul #openMSX #msx #gamedev #openmsxDebugger #debug #emulation

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