This sums up my retro theme for June 2021 #commodore
Interesting, removing this resistor and adding a 220uF cap across these two lines DRAMATICALLY improved this PAL VIC-20’s picture. It’s hard to tell from a photo of a screen, but this looks excellent IRL. Not 100% sure why this works…
10 minute lunch break progress: I think I’ve found a VIC 20 Assembler that fits my brain. Flashing screen warning.
More than one person gave me a hard time about using Monte Carlo to test my PRNG without a visual. Okay, here’s a squished PAL VIC circle and point plot of it :)
Why are PAL VIC-20 (CR) video output circuits wired like the left and NTSC like on the right?
Before morning workout progress: This is the last of these before the refactor to do large sets on an unexpanded VIC-20. This one cheats and uses a 128 to do 30k DIMs. #commodore
SUPER happy with this so far. Generating 100 random mod 256 integers with a Lagged Fibonacci Sequence, then test the distribution for randomness-Monte Carlo value for pi (is it in the circle?) on an unexpanded VIC 20 #commodore #embracecontraints
Well, that random distribution count really sucks. Gonna have to work on this algorithm a lot more… In 10000 iterations, 1 came up 358 times and 2 came up 1669 times. Bleh.
