Denial

Hi We have made a bugfix working for the PAL board from @Bigby The CPLD has two free IO (Pin 40 and Pin 5). So it possible to wire the missing signal V R/W to the CPLD. With a new JEDEC file for the CPLD the V R/W signal will used to improve timing for SRAM writing. Fix : Take a wire and connect &qu...

cool, thank you!

It is available again as rev. 10:

http://retro-donald.de/sinchai-shop/ind ... ucts_id=77

I have checked your website but find no news about the FE3. Is it on a specific page perhaps? This is a link to FE3 at donalds shop: click Also, is it coming with a plastic cartridge, label, etc. as previous models You can choose different options: kit (55 €), with or without case (+12,50 €) , with...

Yes Donald produces EF3 himself. I already got my EF3 and it works wonderfully!


Especially the kernel replacement is very useful. There is no need to add a wire inside the C64 like other cartridges.

Does it support JiffyDOS like the uIEC/SD of Jim Brain? Yes, it supports Jiffy and Jiffy+. It is nearly the same as µIEC. FE3 has a built in SD2IEC. SD2IEC is very popular in europe retro scene. From sight of C64 or VIC-20 it makes no difference, it's exactly the same. Jim has made µIEC using same ...

The solution is already finished:

Zoomfloppy and Tape extension cartridge.

Wow! Very cool.


Bit by bit we have a real DOS for the RAM disk.

D64 would be great! But this would take much code. Much code would be no problem, we have 512KB Flash memory ... ... but this much code must be written by anyone. This D64 code would be very complex, nearly as complex as a 1541 DOS. It should be possible within 8 to 12 KB. It could be DOS compatible...

Very nice work. I would like to see this inside the FE3 firmware integrated. Maybe inside the FE3WEDGE. If it would be reset resistant, it would be nice for developing on the VC-20. And another nice idea would be a backup/restore to SD card as a big file. This RAM disk would be very useful for scene...

It would be nice to have it integrated in FE3FIRMWARE. It wouldn't be nessecary to hold SJLOAD and RAMDRIVE code at $0400, it could stay in ROM also. Only a small code part for fetching bytes from RAM would be nessecary to execute in non banked area. But since VC-20 has a small RAM area, speed is ne...

Yes, Jiffy is very fast for a serial stream. But normally a RAM Disk should be much faster. Even if a memory management is nessecary.


It is a very good idea. I can't await the result of your project ...

Seems to be similar to PET-SD.

But PET-SD is based on µIEC (SD2IEC) firmware and supports all image formats like D64, D71, D80, D82

Yes, you are right. But EF3 is not available currently and so it is no successor currently.

Alienflash is vailable and it works really great. I'm happy with this cartridge.

Maybe I'm happy with Easyflash 3 when it will be available ...

A megacart is simply a + ROM repository for games and utiliies + a configurable memory expansion Memory expansion is not nessecary on a C-64 for most games and utils. So a normal cartridge is near to a "MegaCard for C64". I found EasyFlash useful for my C64 to start many games directly fro...