M.CU.M.E = Multi CompUter Machine Emulator

News

Mai 2025: Few more updates

Fix sound issues in most emulators for the PICO2ZX
add Apple2 emulation (based on AIIE emulator)
add PSRAM support to Castaway (Atari ST) for the hyperpetpico HDMI (slow but better compatibility)
fix USB_PIO issue on the hyperpetpico HDMI (thanks to the PIO_USB author for the RP2350 fix when overclocked)

Mars 2025: Finally some updates! Add pico2 support for hyperpetpico HDMI and PICO2ZX (Bobricus)

HDMI now supported next to TFT (pico2 only)
Add USB HOST (pico2 only)
Port of new emulators to pico2: pcengine, sega master system, sega genesis (exp), gameboy, msx, pc8086, Atari 260ST(exp)
(thanks to the original authors of the code, I only did the port)
Instructions when using PICO2ZX:
- use binaries in /bin ("pico2zx/tft_hdmi" if you have a TFT+HDMI or "pico2zx/hdmi_only" if only have HDMI)
- USR1 = KEMPSTON(>>>>) key, USR2 = MENU(QSAVE) key, USR3 = CURSOR(<<<<) key, DELETE and FIRE have same effect
- arrow up + reset => use HDMI default (TFT+HDMI binaries)
- arrow left/right + reset => use TFT default (TFT+HDMI binaries)
- FIRE: launch game to TFT (TFT+HDMI binaries)
- USR1: launch game to HDMI (TFT+HDMI binaries)
- USR3: select + launch rom/game in AUTORUN
- arrow down + reset => delete autorun mode
About USB:
- most used keys are mapped
- computer emulators starts in keyboard mode, F12 to toggle to joystick mode
- console emulators start in joystick mode
- joystick mode: FIRE=TAB, arrors for directions, USR3=SPACE, USR1=1 and USR2=2 usually

Mai 2023: add multi display support to T-COMPUTER and PICOZX platforms

You can now configure at boot the display to use for each emulator (Teensy41 or PICO)
No need for different binaries depending on the display (VGA,ILI and ST displays are all suported)
Config is stored on the SDCARD
Press Up while booting to force VGA output at startup (will erase display config => default VGA)
Press Left while booting to force ST7789 output at startup (will write config)
Press Right while booting to force ILI9341 output at startup (will write config)
When configured for non VGA display, you can always push to VGA by pressing ALT iso TAB key to start (on T-COMPUTER)
Add FMSX and SNES emulators to T-COMPUTER.
Port of all PICO emulators to the new PICOZX platform of BOBRICIUS

February 2022: introducing T(TEE)-COMPUTER platform based on Teensy41 MCU:

T-COMPUTER has VGA and TFT video out, Audio out, USB input, embedded 42 keys keyboard and a DB9 joystick input!
now supported on T-COMPUTER: Apple2, Vic20, C64, Atari800, ZX81, ZXSpectrum, Atari ST, Amiga, Colecovision, Odyssey, NES, SMS, Genesis and Doom.
new emus for Teensy41: Vic20 and Apple2 based on aiie!
add AUTORUN feature to Teensy and PICO platforms
add Floppy write support to Castaway ST emulator
improved USB keyboard support for existing Teensy41 emus

December 2021:

Add vic20 emulation to the PICO

October 2021: yet more PICO platforms improvements

MCUME_REV2 has now dual screen support (TFT+VGA binaries where TFT can be used for keyboard control, or VGA only binaries wo keyboard control)
Fix keyboard scan for PICOMPUTERMAX (C64,ZX81,ZX Spectrum and Atari800 have now usable keyboard for basic program typing)

September 2021: More PICO platforms improvements

MCUME_REV2 has now digital inputs for UP/DOWN/LEFT/RIGHT so external C64 joystick can be connected (VGA & TFT binaries)
PICOMPUTERMAX now supporting ALT and FN(long press on ALT) so more C64 keys can be mapped (FN for Function keys for e.g.)

<details> <summary>Click for more news</summary> August 2021: Add support for PICOMPUTERMAX on PICO - TFT 7789 320x240

July 2021: Add support for TFT dispays on PICO

MCUME_REV2 supports VGA and TFT (ST or ILI) on same layout
Add specific support for PICOMPUTER (TFT and full keyboard microswitch) https://www.youtube.com/watch?v=4tL9K5tXZtY

May 13th 2021: C64 emulator improvement for PICO

Overclocked to 250MHz for better speed
Add on screen keyboard for text input

May 2021: few improvements for raspberry pi PICO

VGA driver stripped down for 8bits RRRGGGBB (red lines bug fixed)...
Improved PWM audio...
Add sound to C64 emulator but still running far too slow
Add SID player application (picosnd)

April 2021: Add initial support for raspberry PICO

adapted pico scanline library for VGA 8 bits mode (RRRGGGBB), sorry adapted code is embedded...
SD support from https://github.com/carlk3/no-OS-FatFS-SD-SPI-RPi-Pico (fixed IRQ to 1)
rudimentary PWM IRQ based audio (https://gregchadwick.co.uk/blog/playing-with-the-pico-pt3/)

Far from perfect, lot of bugs, and ... unfortunately C64 emulator has no sound for performance reason! All what you need is in MCUME_pico. Precompiled binaries in MCUME_pico/bin. To recompile, look at MCUME_pico/readme.txt

https://www.youtube.com/watch?v=MUpwlZXheb8 https://www.youtube.com/watch?v=_WL_KGkxZ88

November 2020 UPDATE: Atari ST emulation now supporting MIDI output! https://www.youtube.com/watch?v=H-TlCDBwdak https://www.youtube.com/watch?v=fzoTYUpEOKs

November 2020: move to latest VGA_t4 library for stable HIRES support

USB mouse added to Amiga/Atari ST emulation
Amiga sound improved (freq drifting less audible)
Atari ST now support 640x200 and 640x400 (B/W) modes with double buffering!!!
Amiga now support 640x240 mode for cleaner workbench!!! https://www.youtube.com/watch?v=vex335vHc68 https://www.youtube.com/watch?v=LKdcduVwwGQ

Mid October 2020: Most emulators are now supporing VGA with sound on the Teensy4.1 Experimental I2S sound driver has been added to the VGA_t4 library with minimal DMA disturbances. If you are experimenting issues (e.g. image flashing out, crash after few minutes):

try compiling for smallest code iso faster

e.g.:

ST emu: compile for "smallest code"
Amiga emu: compile for "smallest code"
Doom: compile for "faster"

Atari ST emu has now better sound support!

October 2020: DOOM ported to the Teensy4.1 (for VGA and LCD displays) No sound yet but with USB keyboard support (see VGA prototype PCB below). https://www.youtube.com/watch?v=adYwnctiKsg

June 2020: Update of UAE (Amiga emulator) on Teensy4.1 Now with HDD support, better sound and 68020 emulation. All for better compatibility... https://youtu.be/Ho8qZSCKdLg https://youtu.be/vuMYwylYqYs

May 2020: Amiga emulation on Teensy4.1 (with PSRAM) !!! Here is a video of the emulator running on my prototype board. https://youtu.be/LE4IWPG5z6g

March 2020: MSX1/2 emulation on Teensy4.0 (no SDRAM required) Mini-console prototype with 40 keys keyboard, keypad and 320x240 ST7789 display. The prototype supports of course all systems below where keyboard is supported! https://youtu.be/YZGbGKmeb6I

Nov 2019: Gameboy, Sega Master System/ GameGear and Megadrive/Genesis emulator running with extra 8MB SPI RAM (PSRAM) https://youtu.be/j2sKw7KYpEo

Oct 2019: PC-Engine 'tiny' emulator running on Teensy 4.0 using an extra 8MB SPI RAM (PSRAM) https://youtu.be/Ot9RgDMqdF4 GFX bug due to objs cache limitation is now fixed!

<img src="/images/t4piggy.png" width="240" /> <img src="/images/pcbT4.png" width="480" /> T4 with PSRAM piggy back and latest T4 pcb!

Sep 2019: Teensy 4.0 now running Atari 520ST emulator (68k core based)!!! https://youtu.be/UCOaOGmYYso https://youtu.be/6rr2hMqprO0

</details> <img src="/images/teensy4SD.png" width="200" /> <img src="/images/stdesktop.png" width="200" /> <img src="/images/strobocop.png" width="200" /> <img src="/images/teensybread.jpg" width="200" /> <img src="/images/teensy362.jpg" width="200" /> <img src="/images/esp321.jpg" width="200" /> <img src="/images/esp322.jpg" width="200" /> A collection of 80th game Console and Computer emulators ported to Teensy, raspberry PICO and ESP32 MCUs. Have a look at the video: https://youtu.be/jlqoWH2X6gk This project is a spin-off of the TeensyCEC project https://github.com/Jean-MarcHarvengt/TeensyCEC Now ported to much more MCUs!

Featuring

Computer systems supported and status on various MCU platforms

| System | Teensy3.6 | Teensy 4.0 | Teensy4.0 +PSRAM | Teensy4.1 +PSRAM | ESP32 | ESP32-Wrover | Pico | Pico2 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Zx81 | X | X | X | X | X | X | X | X | | Zx spectrum | X | X | X | X | X | X | X | X | | Atari 800 | X | X | X | X | X | X | X | X | | C64 | X | X | X | X | X | X | X | X | | VIC20 | | | | X | | | X | X | | Apple2 | | | | X | | | | X | | Atari 520ST | - | full speed! | X | X (640x400!) | - | slow | - | - | | Atari 260ST | - | - | - | - | - | - | - | X | | 8086 XT PC | - | full speed! | X | X | - | slow | - | X | | MSX1/2 | - | full speed! | X | X | - | - | - | X | | Amiga | - | - | exp only! | X (640x240!) | - | - | - | - | | Doom | - | - | - | x | - | - | - | - |

Please compile for smallest code on the Teensy4.0 else you will run out of memory For Teensy 4.1 with PSRAM try compiling for smallest code (unless it complains at compilation). Doom for example only works if compiled for smallest code!

Game console systems supported and status on various MCU platforms

MCUME

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README

M.CU.M.E = Multi CompUter Machine Emulator

News

Featuring