Author Archive

Amiga 2000 already repaired in April 2016 now Black Screen

March 17th, 2019 No comments
Amiga 2000 already repaired in April 2016 now  Black Screen

This Amiga 2000 is arrived in my lab in very poor condition in April 2016, the computer has been repaired and stored in an antistatic envelope.

Tested after almost 3 years, the computer does not show signs of life.

Having no video output, i have used the Chucky DIAGROM which through a serial connection i was able to identify 2 different problems with the RAM’s.


  • Black Screen


  • Rebuilt track on the 68000 DX side near resistor pack RP900 (previously good)
  • Rebuilt track RAM U529 signal CAS (previously good)
  • Replaced RAM LM 33256 U501 with TMS 4256 (previously working)

Below some random photo of the repair.


AVG Cartridge for 8bit Atari + PDM Audio Player Video

March 12th, 2019 No comments
AVG Cartridge for 8bit Atari

First of all i have to thank Filippo Santellocco (Philsan) for this unexpected gift that i really appreciate.

AVGCART – SD multicart for 8bit Atari features:

  • Supports CAR files up to 1MB (most bankswitching types are implemented)
  • Supports XEX files.
  • Supports ATR files (read/write) – support is limited due to cartridge port constraints.
  • SIDE emulation (works with U1MB and SpartaDOS X)
  • Firmware is upgradeable via SD card.

Keyboard reference:

  • arrows to navigate the list, with CTRL jump to beginning/end of page/list
  • BACKSPACE for parent dir
  • ENTER and letters choose item
  • TAB to select multiple ATR files (right cart button to cycle them afterwards)
  • ESC disables cart and resets Atari
  • / for recursive search, use ESC to return to full navigation
  • SHIFT-S enables SIDE CCTL registers and resets

Use left cart button to return to file selector (after reset), right cart button resets current cart’s bank (also cycles ATR files)

Titles of the songs in the video:

  • AC/DC – Back in Black
  • Narada Michael Walden – Tonight I’m Alright
  • Kungs & Cookin’ On 3 Burners – This Girl
  • Sucker Punch (Dubstep Remix)

The songs are complete from beginning to end but for reasons of length of the video i have cut the songs.

The video can be only downloaded, because Youtube and Facebook have blocked the video streaming for copyrighted content, really ridiculous as the audio tracks are not complete and certainly not faithful to the original.

My personal note; the only two home computers that i follow with passion are Commodore & Atari.

…have a good listening

Download: AVG Cartridge PDM Player Atari Video (87)


C64 Big Game Pack: Bruce Lee – RoF / Scooby & S.Doo +6DGMI …

March 9th, 2019 No comments


Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.


  • Championship Wrestling +3D
  • Two Days to the Race Preview
  • Race Through Space +2HD
  • Hook [georam]
  • Rock ‘n Roll Trivia Volume 1 +D
  • Hook
  • Rock ‘n Roll Trivia Volume 5 +D
  • Rock ‘n Roll Trivia Volume 4 +D
  • Rock ‘n Roll Trivia Volume 2 +D
  • Rock ‘n Roll Trivia Volume 3 +D
  • Pool of Radiance [georam]
  • Two Days to the Race V1.6 +D
  • Monopoly Preview V2 +D
  • Space Hunter +
  • Secret Tunnel +4
  • Super Toboggan Challenge +1HD
  • Boulder Dash Junior II++ (The Final Dig!)
  • Super Toboggan Challenge
  • PSI 5 Trading Company +FMD
  • PSI 5 Trading Company +FD
  • Rock ‘n Wrestle +6DH
  • Bop ‘n Wrestle +6DH
  • Super Galax-I-Birds
  • Turrican II [1581]
  • Turrican [1581]
  • Super Galax-I-Birds +4MF
  • Beach Bar +4D
  • Starfysh Remix
  • Scooby & Scrappy Doo +6DGMI
  • Starfysh Remix +6HD
  • Multiplan V1.07 +F
  • Beezarro
  • B-Ball +F
  • Power Station +5
  • Championship Wrestling +3D
  • Yie Ar Kung Fu +4HD
  • Sidelines +2
  • Griddy Pixels Preview
  • PSI 5 Trading Company +DF
  • Tenebra Macabre [16kb cartridge]
  • Tenebra Macabre +4D
  • Griddy Pixels Preview 2 +1D
  • Flock +2
  • Bruce Lee – Return of Fury +
  • Bruce Lee – Return of Fury +2D
  • Bruce Lee – Return of Fury
  • Bruce Lee – Return of Fury +1D
  • Bruce Lee – Return of Fury +2D
  • Labyrinth [all drives]
  • Labyrinth
  • Parsec
  • Toyshop & Lollipops +D
  • Bruce Lee – Return of Fury +2HD
  • Spitting Image
  • The Original Tetris Game +2
  • Pacman II +4
  • Pacman +3
  • Zig-Zag +2DG
  • Griddy Pixels Preview 3 &FD
  • Knight Lore V1.10 +D
  • Knight Lore V1.10

Download: All Games in One Archive (1299)


USB Stick STM32 (Gotek) HxC Firmware v3.1.38.2a

March 9th, 2019 No comments

Jean-François DEL NERO (who’s behind the HxC SD Floppy Emulator) recently has released a version of the HxC emulator firmware that is compatible with the STM32 chip used in the Gotek floppy emulators.

This means that the great functionality of the HxC SD emulator is now available on cheaper and more widely available hardware.

The bootloader to convert the Gotek floppy drive in HxC compatible must be purchased on the website HXC 2001 by sending an email to Jean-François DEL NERO. The price of the bootloader is one-off 10 Euro per Gotek that you want to update. Future updates of the software are free and can be made from a USB stick

The HXC Usb (Gotek) firmware supports: + many more….

USB Stick STM32 (Gotek) HxC Floppy Emulator Firmware v3.1.32.1a -> v3.1.38.2a cumulative changelog:

  • More customization options:
    • Raw file image/disk format selection.
    • You can now define your raw file image/disk format !
    • Floppy Interface modes.
  • More customization options:
    • 16 different oled graphic fonts available.
    • New oled screen models supported (128×32,128×64, SSD1306, SH1106…).
    • Default raw system selection.
    • And many more new options: sound volume, auto select delay, …
  • New raw formats support: Coat-A-Matic 9400 / Robox RC9400 (*.IMG/*.DSK) (289KB)
  • Fix Track 00 issue (v3.1.34.1a regression).
  • AutoSwap support enhanced/completed (sub-folders in normal mode supported).
  • Internal optimizations.
  • Direct access mode : Some fixes for the auto disk swap (“AutoSwap”) support.
  • Direct access mode : New functions
  • Select mode (0×5):
    • Mode 0 – Flash sector access mode (Default)
    • Mode 1 – Plain text browser, Entries format : “IIII;T;SSSSSSSS;File name\r\n”
    • IIII = Object ID (ASCII HEX Number).
    • T = Type -> ‘F’=FILE, ‘D’=DIRECTORY
    • SSSSSSSS = File Size  (ASCII HEX Number).
    • Mode 2 – Slot list mode.
  • Change Objects list ID base (0×6) (Plain text browser).
  • Select/Enter Object (0×7) (Plain text browser – Image/Directory selection or File tranfert mode).
  • Set file base offset (0×8) (File transfer mode).
  • Get current selected image (0×9).
  • Select file with path (0xA) (Select image with a plain text file path).
  • MFM & FM support. (see the customization page :
  • With these new direct access API functions small file selector/browser/swapper/loader can be developed without the need of any FAT32 library on resource-limited machines. The protocol specification document will be updated soon at this address :
  • First online-customizable firmware available !
    • Fill up the form on the page to customize the firmware.
    • The firmware will be recompiled/rebuilt following your requests and sent to the provided email some minutes later.
    • This is a fully automated and free service so don’t hesitate to play with it ! :).
    • More and more options will be added on the customization page.
  • Fix v3.1.34.1a regression : Disk density selection issues with some raw formats. Please update.
  • Files & Folders names starting with ‘.’ are now hidden.
  • Firmware memory size reduced once again : More tables size optimizations.

This is only a little part of the changelog. The original one is very long and you can read it here. (instruction manual here)

Download: USB Stick STM32 (Gotek) HxC Firmware v3.1.38.2a (95)


Categories: Firmware, News & Rumors, Today

Fjälldata 2019: C64 – Official demo party results

March 4th, 2019 No comments

This is the official demo party results from Fjälldata 2019. See also the Fjälldata 2019 section for more informations and download.


  • 1. Space beer/Fossil
  • 2. Monomania/Offence
  • 3. Omg got balls!/OMG
  • 4. They say so much/Mahoney
  • 5. New faces/TRIAD
  • 6. Party scroller/Atlantis
  • 7. Purple planet yo/Proxima (VIC-20)
  • 8. Stolen properties/TRIAD
  • 9. Madademo/GP + HMF
  • 10. Jeroen tel/Brøst
  • 11. Crapman/Latex
  • 12. Fjällkingen/Esløv

Music covers:

  • 1. Coffee zone/Dane
  • 2. DeepaSIDo/Steel
  • 3. Nightcall/Fegol
  • 4. I want to love/TDM
  • 5. Doris/Qdor
  • 6. Dragonwars/Steel
  • 7. Jeff forfan/Musicman
  • 8. Slicka en flicka/TDM


  • 1. The unusual/Stinsen+Linus
  • 2. Tac2sintolerant/Fegol
  • 3. I love you son/Steel
  • 4. I can’t ESC/Spider J.
  • 5. Trippy trappy/Jammer
  • 6. Laserloop/Båtsman
  • 7. Compotune/5bot


  • 1. Random/Prowler
  • 2. Lapgods/Fabs
  • 3. Danny ja Armi/Twoflower
  • 4. Bernie/Redcrab
  • 5. Dragonhorse/Facet
  • 6. Geldiver/Railslave
  • 7. Junglism/Lunix
  • 8. Tottes kopp/Creep
  • 9. Grandino/5bot

Productions released outside compos:

  • Edu-Intro by Triad (Crack intro)
  • Toyshop & Lollipops +D by Triad (Crack)
  • TRIAD at Fjälldata Disk Cover by Triad (Disk Cover)

Download: Fjalldata 2019 Full Party Stuff (142)


U64/Ultimate-64 v1.10 – U2+/U2 v3.4 Firmware Update

March 3rd, 2019 No comments

A new version of the firmware for the Ultimate-64 / U2+ / U2 by Gideon is released.

U64 – Differences with previous official release V1.0B:

  • Based on Ultimate-II+ firmware Version 3.4
  • NTSC mode has been added. The switch can be found in the U64 Specific Settings menu
  • Added rudimentary support for USB Floppy disks (not completely done yet; as removal of floppy is not yet detected)
  • USB problems with low/full speed devices fixed; no more bus hang-ups in these cases. (No full HID support just yet..)
  • VIC collision problem fixed.
  • Improved 1541 compatibility; weak bit areas and floppy speed zones are now properly supported.
  • LED Strip support.
  • Various improvements ‘under the hood’

U2+ – Differences with previous official release V3.3a:

  • Added rudimentary support for USB Floppy disks (not completely done yet; as removal of floppy is not yet detected)
  • USB problems with low/full speed devices fixed; no more bus hang-ups in these cases. (No full HID support just yet..)
  • Improved 1541 compatibility; weak bit areas and floppy speed zones are now properly supported.
  • Various improvements ‘under the hood’

U2 – Differences with previous official release V3.2:

  • The USB2LAN problem is now fixed. This bug took me over 50 hours to find and fix.
  • Improved 1541 compatibility; weak bit areas and floppy speed zones are now properly supported.
  • All other under the hood fixes that were done for U2+ and U64 that apply for U2 are backported to the U2 as well.



Categories: Firmware, News & Rumors, Today

SD2Snes Firmware v1.10.0/v1.10.1 released (S-DD1 support)

March 3rd, 2019 No comments

Ikari has released a new firmware for the SD2Snes Flash Cartridge (Super Nintendo/Famicom). The upgrade instructions can be found here.

Cumulative Changelog:

  • S-DD1 support by Magno! Big thanks to Magno who implemented it and RedGuy who helped integrate the core with the main firmware :)
  • Support for sd2snes Mk.III (a.k.a. SD2SNES Pro). This works by adding a new set of support files for the new hardware so the firmware package actually contains two firmwares. This also makes it possible to swap the same card between old and new sd2sneses freely.
  • Fixes:
    • Fix memory corruption on BS-X loading. (Hopefully – I could not identify a cause and suspect bitstream file corruption. Please let me know if it works again – it does for me)
    • S-RTC register state is REALLY reset when the console is reset, and also when loading a game.
    • Actually boot on SD2SNES Pro.
  • Known issues:
    • Firmware seems to ignore Cx4 speed setting (at least since v1.9.0)
    • sd2snes Pro menu still has the old design
    • Mk.III specific source code changes currently aren’t contained in the GitHub repository. Please bear with me while I figure out a way to integrate them. ;)



Categories: Firmware, News & Rumors, Today

SNK Neo Geo MV1a Z80 Error Repair

February 27th, 2019 No comments
SNK Neo Geo MV1a Z80 Error Repair

SNK Neo Geo MV1a Z-80 Error Repair.


  • No Sound (Z-80 Error)


  • Replacement of the Z-80 CPU in PSOP40 format.


  • The error message “Z-80 Error” means everything and nothing, may be faulty the Z-80, SNK MASK-ROM SM1*, SNK NEO-D0 or also the YAMAHA YM2610.

With the Neo Diagnostics bios and with the M1 ROM burned and installed on the CHA Board of any NEO GEO cartridge, the problem can be better identified.

It is said that the error C3/00 that you see in the photos of NEO DIAGNOSTICS (write: C3 but reads: 00) is an almost assured a CPU problem, in fact, in this case it was.

The Z-80 CPU in PSOP40 format has been recovered from a failed SEGA GameGear.


source: neogeo diag

fpgaSID by andi6510 New Firmware ver. 0A

February 26th, 2019 No comments

A new firmware update for the fpgaSID has been released by andi6510.

Below the changelog taken directly from the website.

Main changes:

  • New 6581 bias setting range and curve. Per default the bias is now tuned to a brighter sound which is the most audible difference to revision 09.
  • Some further improvements on the 6581 filters.

New Features:

  • LEDs can be switched off now.
  • The outputs can be switched to a mix of both SIDs allowing mono setups with a single speaker.
  • The firmware flashing procedure has been improved to increase the success rate.
  • FPGASID is now compatible to the EasyFlash 3 module.


  • Important! Before updating the firmware, please read the documentation on flashing in the ConfiGuru manual.

Download: fpgaSID Firmware ver. 0A (79)


BCC #13: C64 – Official demo party results

February 25th, 2019 No comments

This is the official demo party results from BCC #13. See also the CSDB BCC #13 section for more informations and download.

C64 Demo:

  • 1 – Snakepit by Delysid
  • 2 – Beezarro by Atlantis
  • 3 – Week in Progress by Mayday!

C64 Music:

  • 1 – Nappy Go Lucky by Toggle
  • 2 – Cellar Door by Snabel
  • 3 – Mein Verlies by Spider Jerusalem
  • 4 – Trainride by Røly
  • 5 – Space Invaders Medley by Mibri
  • 5 – La chevre by Glafouk
  • 6 – Curlin’s Theme by Bordeaux
  • 7 – BCC 2019 by Sonki            

C64 Graphics:

  • 1 – White Rabbit by Awsm
  • 2 – Fairy King by Fabs
  • 3 – Championship Wrestling +3D DirArt    
  • 4 – Elostelija by XynnM    
  • 5 – Service Stop Guests by Viza
  • 6 – The Optimistic Skipper by Luisa/Oni    
  • 7 – A Small Riddle by Lobo    
  • 8 – Zilicious by XynnM
  • 9 – BCC #13
  • 10 – Chagizzz by XynnM

C64 Fast Intro:

  • 1 – Punk a chiens by Dentifrice
  • 2 – Antz by Delysid
  • 3 – Space Invaders by Hokuto Force
  • 4 – Ode to RRR by Excess
  • 5 – Zwartennerd by Excess

Productions released outside compos:

  • Championship Wrestling +3D by Excess (Crack)
  • Greetings to Delysid by Fake (Graphics)
  • Yie Ar Kung Fu + 4HD by Excess (Crack)

Download: BCC #13 Full Party Stuff (139)


ARMSiD by Nobomi New Firmware v2.8 & New PCB rev.

February 21st, 2019 No comments
ARMSid New PCB rev

Nobomi has made a new revision of the ARMSiD PCB which however has the same hardware features as the previous one.

A new firmware update for the ARMSiD has also been released by Nobomi.

Below is the changelog taken directly from the website.

Differences between FW 2.8 and previous version:

  • The start and the end of the bus data cycle (reading or writing) is now controlled by signal CS only (it was the same on the beginning of the cycle, but the end was controlled by 02 clock before), it can help with a bus stability in other systems than C64 a C128.
  • Internal frequency generators are updated with precision of one 02 clock – about 1us (no audio signal phase changes after frequency retuning) !
  • Correct polarity of the bandpass filter.
  • Added emulation of internal filter voltage offset.
  • Added the “Digi Boost” feature by software – an effect similar to adding 330kOhm resistor between EXTin and GND on the MOS8580.
  • Other speed optimization.


Download: ARMSiD v2.8 (17/2/2019) (85)


Atari Mega 1 – Atari Megafile 30 – Atari Monitor SM124

February 16th, 2019 No comments
Atari Mega 1 - Atari Megafile 30 - Atari Monitor SM124

Everything seems to work perfectly including Hard Disk and Floppy Drive.

I must thank my friend Ralf Schmitz for this gift.


Fidelity CM14 Colour Monitor (RGB/Composite)

February 16th, 2019 No comments
Fidelity CM14 Colour Monitor (RGB/Composite)

This Monitor was usually sold in combination with the ZX Spectrum 128 (models with RGB output) or Sinclair QL but it works with any RGB source.

I have already an identical model in my collection but is rebranded PRISM QL14 and without protection glass.

My friend Gerben wanted to give me this model in good condition with the protection glass intact. Thanks Gerben for the excellent packaging, as you can see the glass has not broken :D

The operation test was performed with a Ultimate-64 with a RGB cable. I have also performed a video image calibration and i share the trimmer positions on the motherboard.

Fidelity CM14 Colour Monitor (RGB/Composite)



Hoxs64 Commodore 64 Emulator Updated v1.0.18.0

February 13th, 2019 No comments

Hoxs64 written by David Horrocks is a Commodore 64 emulator for Microsoft Windows 2K/XP/Vista/Seven (DirectX 9+)

The emulator substantially reproduces this legacy machine in minute detail.

Changelog (v1.0.18.0):



sidSwitcher Enhanced v2.02

February 11th, 2019 No comments
SidSwitcher Enhanced v2.02

Project born in 2017 for my SX-64++

I wanted to improve the schematics and make a PCB (thank to CodingKoala Labs), the previous version was made on prototyping board pcb.

I have also added some features that i need when i will install the FPGASID in the SX-64++ and like the previous version the sidSwitcher integrates perfectly with the Overlay-64 & Keyman-64.

This circuit is not for sale. Schematics, Gerber and Atmel hex will be available soon for Download.

P.S: This project can also be used as a simple SPDT of analog audio signals. 2 INPUTS and 1 OUTPUT.


  • Output for Overlay-64 (
  • Input Push Button or Keyman-64 (
  • Bicolor LED (SID1 GREEN / SID2 RED / SID1 + SID2 ORANGE)
  • Possibility to use the mute function.
  • Jumper for configuration.

Schematics: (Prototype and Final):

The following photos are of the first version, second enhanced version, prototype breadboard and pcb.