The price for having these built is reasonable (though the shipping is not reasonable).  I am tempted to buy!

Truly,
Robert Bernardo
Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan
April 26-27 Commodore Los Angeles Super Show 2025 - http://www.portcommodore.com/class

Quote from: RobertB on November 16, 2024, 10:29 AMOn this page, there is a method to hack a faster Z80 in order to run CP/M faster.  See

https://github.com/ytmytm/c128-z80-8mhz

Truly,
Robert Bernardo
Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan

Yes, the Z80 itself runs faster, but I/O is still limited to 1 MHz operation, since it is the 8502 that is doing the work.  Also, the disk-intensive nature of CP/M means performance is hobbled by the relative-slow 1571 or not-quite-as-slow as the 1581.

The CP/M implementation on the C-128 leaves much to be desired in terms of performance.  Early on when I acquired a Lt. Kernal disk subsystem, I gave CP/M a go with it.  It definitely was faster than with use of a floppy disk, but not at the level I had seen on the native Z80 machines that were available late in CP/M's useful life.  I deleted the CP/M LU on the Lt. Kernal and that was the end of CP/M for me.

Quote from: Blacklord on January 06, 2025, 07:09 AM40 years ago today the Commodore 128 was released at the 1985 CES show in Las Vegas, Nevada.

Seems like just the other day when I bought my first C-128.

Switchless 8x Multi-Speeder and 32KB KB RAM expansion with parallel port and Kernal switch for the internal 1571 floppy disk drive and C128DCR (DolphinDos3 compatible)

https://github.com/FraEgg/commodore-c128dcr-1571-switchless-floppydrive-8x-multi-floppy-speeder

A 256x256 Pixel graphic card for the Commodore PET computer from the small German computer engineering company ELTEC (1980)

1 print chr$(147)
10 for i =0 to 255
20 poke 646,i
25 print i;"hello world"
30 next i
i ran this in vice by mistake
this is what it should of been

1 print chr$(147)
10 for i =0 to 15
20 poke 646,i
25 print i;"hello world"
30 next i
c128 mode tried in c128 mode

1 print chr$(147)
10 for i =0 to 255
20 poke 241,i
25 print i;"hello world"
30 next i
correct code
1 print chr$(147)
10 for i =0 to 15
20 poke 241,i
25 print i;"hello world"
30 next i
how can this happens there are only 0 to 15 colours and I can poke up to 255 values

Ken

TeensyROM is a ROM Emulator, Fast Loader, MIDI and Internet cartridge for Commodore64/128, and now it has been updated to version 0.6.6. Demonstrated at last year's Pacific Commodore Expo NW, TeensyROM runs .CRT, .PRG, .D64 and other file formats stored in its flash memory or from a USB stick and/or microSD card.

For more information on TeensyROM, go to

https://github.com/SensoriumEmbedded/TeensyROM

Another TeensyROM presentation at CLASS 2025,
Robert Bernardo
Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan
April 26-27 Commodore Los Angeles Super Show 2025 - http://www.portcommodore.com/class

Try out this fast Mandelbrot generator for the C128 in VIC-IIe and VDC modes and for other platforms, too.  Go to

https://github.com/0x444454/mandelbr8

80x50 text mode being experimental,
Robert Bernardo
Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan
April 26-27 Commodore Los Angeles Super Show 2025 - http://www.portcommodore.com/class

We are about 2 months out from the April 26-27 Commodore Los Angeles Super Show in Burbank!  The Burbank VFW has been paid for the use of their room, and now all we have to do is fill the room full of computers.    Please let me know if you want to exhibit your Commodore and/or Amiga computers at CLASS.

          Celebrating the 40th anniversary of the Commodore 128
          and the Amiga 1000...
          Robert Bernardo
          http://www.portcommodore.com/class

    Version 1.07 of C64OS has been released!  This version has a new network stack, new Help Utility, and an improved PRG runner, among many other improvements and bugfixes.  Go to

https://c64os.com/c64os/softwareupdates/#v1_07

To purchase C64OS, go to

https://c64os.com/c64os/#order

          Truly,
          Robert Bernardo
          Fresno Commodore User Group – http://www.dickestel.com/fcug.htm
          Southern California Commodore & Amiga Network – http://www.portcommodore.com/sccan
          April 26-27 Commodore Los Angeles Super Show 2025 - http://www.portcommodore.com/class