Search found 6 matches

by Zibri
Thu Nov 05, 2020 12:25 pm
Forum: Hardware
Topic: WDC's W65C22N - the VIA are still made!
Replies: 5
Views: 2221

Re: WDC's W65C22N - the VIA are still made!

So the right one for a 1541 should be W65C22N6TPG-14 right?
by Zibri
Wed Sep 09, 2020 3:58 am
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 101
Views: 14185

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

Mine was just curiosity. I have no doubts whatsoever that the Plankton is the best solution available. It just seems strange that there is no other eprom with the "right" timings and voltages except those. Oh and please, don't get too "close" to the original!!! They burned like m...
by Zibri
Mon Sep 07, 2020 1:04 am
Forum: Software
Topic: 1541 Speed Test (and more) released.
Replies: 4
Views: 607

Re: 1541 Speed Test (and more) released.

Track 36 is outside the normal BAM so I guess it's nothing to worry about if you only have a normally formatted floppy with just the test program on it. I find it rather surprising that a reference disk isn't required. Could you tell us what your program does with track 36 to know the speed ? Many ...
by Zibri
Sat Aug 29, 2020 5:41 pm
Forum: Hardware
Topic: The Dos and Don'ts of using an EPROM as PLA in a C64.
Replies: 101
Views: 14185

Re: The Dos and Don'ts of using an EPROM as PLA in a C64.

Question: is the M27C512 the only cheap eprom suitable for this?
I am sure there must be some new ones usable or adaptable (voltage translation) for this purpose.
by Zibri
Fri Aug 28, 2020 8:10 pm
Forum: Software
Topic: 1541 Speed Test (and more) released.
Replies: 4
Views: 607

1541 Speed Test (and more) released.

Hello! A few days ago I released 1541 Speed Test to help a few friends of mine to repair drives. The program important features are: 1) it's the most accurate ever made and correctly shows speed with cent of rpm accuracy. 2) it has the fastest updates (more than 2 per second) allowing real time chec...
by Zibri
Fri Aug 28, 2020 8:01 pm
Forum: Emulation
Topic: What's your favourite Emulator?
Replies: 23
Views: 10100

Re: What's your favourite Emulator?

I would say VICE, unfortunately it is now infested by the presence of Groepaz. A character that just talks, destroys and rarely builds something on his own. An example: https://sourceforge.net/p/vice-emu/feature-requests/371/ He didn't even take the time to read or study the problem. As usual accuse...