The Commodore VIC 20 that did not like Cheese and Onion #VintageComputing #Gaming @tynemouthsw

The Future Was 8 bit gets occasional support messages along the lines of

My Penultimate Cartridge doesn’t work

From past experience, we know that is almost certainly not the case. What is actually means is

My VIC 20 is broken, and I didn’t realize until I tried to use it in a way I had not done before“.

It is understandable that when a user buys something new, plugs it into what they believe is a working machine and it doesn’t work, they blame the thing they have just bought.

TFW8b recently had a message that said that pretty much everything worked, apart from Cheese and Onion (an excellent platform game from Misfit).

This is odd because all the test games worked. To narrow things out, I tried the following tests:

  • My VIC20 + My Penultimate+ Cartridge ✔
  • My VIC20 + Users Penultimate+ Cartridge ✔
  • Users VIC20 + Users Penultimate+ Cartridge ✖
  • Users VIC20 + My Penultimate+ Cartridge ✖

Check out the debug methodology that ultimately found that one game didn’t load due to two faulty 74 series logic chips being a bit glitchy in the post here.

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