Denial

I just found this: https://github.com/jdimeglio/6502-Simulator.git I'll have to see if that will assemble the code when I can find a Windows machine. UPDATE: No it won't assemble.. "Unrecognized data--space or label expected. ROW 1275" . That's at the *=$C000 line. I tried .ORG $C000 and ...

Mike wrote: ↑Thu May 08, 2025 1:17 am So much for the rumours, here are the facts: https://sleepingelephant.com/ipw-web/bu ... 1&start=22

Vielen Dank, Herr VC! -OGM

(mod: unnecessary full quote of linked-to posting removed)

I'm pretty sure the read of $9600 on an unexpanded Vic reads the same physical chip and location as $9400 does with 8K RAM expansion. In other words the address mapping changes when the 8K RAM is present, but the Vic chip is always accessing the same colour RAM chip locations in both cases. If we h...

AndyH wrote: ↑Wed May 07, 2025 5:40 pm Depending where your screen is set, either $9400 or $9600 will be free to use (the lower 4 bits).

So its only two low nybbles then, AndyH: the low nybble of $9400 (four bits) and the low nybble of $9600 (four bits)? -OGM

Hello, i have tested the 40 char screen a lot with the programms from the book "Compute´s Programming the VIC". Most of the programms are running well and there are only the limitationas as desribte by Tokra to POKE directly into the screen. I would like to have the ball demo from the VIC...

javierglez wrote: ↑Tue May 06, 2025 4:11 am I think the cartridge should have a label, being it a licensed product and not a homebrew one, in the style of other commercial cartridges.

No estoy en desacuerdo, especialmente por el precio de €60,00 y sin literatura ni embalaje. -OGM

Wilson wrote: ↑Mon May 05, 2025 4:39 pm The color RAM is only 4-bit. What you read on the upper 4 bits will just be garbage on the bus.
You need to AND your read value with $0f to get the actual contents of the memory between $9400-$9800.

So is the high nybble is always garbage on the bus between $9400-$9800 / 37888-38912? -OGM

tokra wrote: ↑Sun May 04, 2025 11:52 am Ulli just mentioned he put one of the cartridges for sale on Ebay:

https://www.ebay.de/itm/156955408571

Happy bidding. EU-shipping only as far as I see.

(too expensive for me right now) Best of luck to Ulli! -OGM

Nice work, Rick! KEEP GOING! -OGM

[...] How goes the saying: First you say it then you do it. [...] then slowly over about two minutes the snake left for the outside garden. I'm not a big fan of snakes, anyway thought I'd share. [...] Wow, H! That's why out here in the midwestern U.S., a lot of us significantly sharpen-up our garde...

A timeless classic, huffelduff; way better than 1997's Anaconda! -OGM

[...] One motivating idea for "inner devloop" with real hardware (apart from retro authenticity aesthetics) is to explore the use of machine learning in program synthesis. I'm wondering if it's possible to build an automated feedback loop with both emulators and real hardware executing th...

chysn (4/18/1971-2/20/2024 — may he rest in peace) was working on something called wAxfer -- a wAx plugin to allow Bluetooth® transfer to the VIC-20 -- before he was taken way too early from us. Maybe that can be adapted to Wifi, similar to a Strikelink ? - OGM wAxfer https://youtu.be/CX1q53AIUog

[...] I've started writing a completely new document to explain the FE3 architecture. It's unfinished but hopefully it contains the sort of information you were looking for https://eden.mose.org.uk/download/FE3%20Programmers%20Guide.pdf [...] I am looking at it right now, Simon. Thanks much! :D - O...

TheShortTimer wrote: ↑Thu Apr 17, 2025 3:12 pm Can this be used for practicing assembler on a real VIC 20?

I think your answer(s) lie(s) here: VIC-20 Software Releases of 2025. -OGM