KIM Clone Corsham Technologies

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A new KIM CLone kit is coming!

Bob Applegate is filling in the gap left by Vince Briel, with his own design.

  • 6502 for now, but will probably ship with a 65C02 (extra instructions).
  • Fully KIM-1 software compatible.
  • 5K memory from 0000 to 13FF, then another 56K from 2000 to FFF7.
  • The top 8K of RAM can be turned off and 8K of EEPROM can be enabled (socket on board for the EEPROM).
  • Has an 8V power plug and on/off switch.
  • No cassette interface.
  • USB serial board.  Ie, plug a USB cable between your computer and the KIM clone to use the TTY port.
  • Has connector to plug in our SD System.  Store/retrieve programs from a micro SD card.

KIM Clone Progress

 

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Forum is no more

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For many years this site had a forum. It was PHPBB based, an older version.

Not much traffic, mostly news from me (which is now also here) and some posts already added to the pages of the site.

Thank you for the contributions and the Contact page is always available for your questions and contributions!

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6502 illegal opcodes list

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Groepaz from the VICE emulator team and the C64 demo group Hitmen just released an updated PDF of 6502 illegal or perhaps more accurately called unintentional opcodes.

I would say this document and the use of illegals are for advanced programmers but they can come in very handy for generating smaller or faster code at times.

Some illegal opcodes can be unstable on certain chips

NMOS 6510 Unintended Opcodes no more secrets (v0.91 – 24/12/16)

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