Denial

I can just feel that we're finally going to make Jeff use memory expansion and code in machine language! :lol: Doubtful. If even inspiration by example :wink: doesn't work, much less would feature requests regarding a game which is essentially perfect in its simplicity. @Vic 2000: How about going t...

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I tested the PSU with my meter and it also seems to be producing the right voltage (about 5.2v DC and 9.6v AC) Check the ripple on the DC rail while the VIC-20 is on. The VIC chip is quite sensitive to AC components on the 5V and will refuse to display a picture if the ripple exceeds somewhat over ...

IMO, some people should better concentrate on putting out actual, *working* code before theorizing about alternative encoding schemes for their algorithms.

And, for most non-trivial programs, the size of the code is usually dwarfed against the size of the data being processed.

Mike wrote:If all goes well, I'll make a short video of pulse running on my VIC-20 by Friday.

pixel wrote:My desk will go vintage until then! *scratch!*

Here we go (warning, big: ~72 MB): pulse.avi

Cheers,

Michael

pixel wrote:Anyone who would make a video of it on the real thing?

If all goes well, I'll make a short video of pulse running on my VIC-20 by Friday.

My concern is about breaking even and to not get f***** over in the process. That's even worse. I hope we don't end up discussing politics here. :( No worries. For me, programming for the VIC-20 is a spare time activity. From time to time, I might publish some nice works, but neither do I accept 'o...

Also, I'd love to break out the source, but first, I have to convince somebody here that there's no money to be made out of it. That's what you get for all the flattering. ;) If you're really concerned about that , you shouldn't have published the game in downloadable form at all. In 2011 I reverse...

This doc is for a 1001 drive - the old 1541 has an entirely different mainboard. IIRC the positions for the trace cuts look very similar to those on the +3K RAM expander, two pairs of half-circular solder pads connected by a thin trace each, for 4 possible combinations in total, addresses 8..11. Tha...

When you got your stock VIC 20 boot-from-tape version in a place where you value, please consider the ROM cartridge space next; start with a 4kb version to see what that opens for you. [...] From what I've seen with a quick peek in the VICE monitor, the game already uses the full 4K of $1000 to $1F...

The classic game play has 8 rows, of which the longest one is 15 tiles at the start of the game, so one tile can have a max. of 11 pixels (max. X resolution of the VIC is 22*8=176px / 15 tiles = 11 px per tile) A tile size of 11 pixels width (including border) would also fit into a 160x192 bitmap (...

[...](and bear with me because I really am pretty new to writing games).[...] Really? http://sleepingelephant.com/ipw-web/bulletin/bb/viewtopic.php?t=2904 ... and to quote from this posting in 2008: I [...] am going to jump straight in at the deep end with machine language rather than BASIC. (Simpl...

:lol: There's already quite a big queue of WIPs for the VIC-20 on my HD, so Imperium Romanum would have to wait in line. :P Anyway, what makes the reaction to the presses of the fire buttons so slow are the lines 365 to 367, where the position of the hair cross is compared for equality with one of t...

One month ago, I had a short PM exchange with Richardc64 regarding an alternative approach to fill up BLK0. He also brought forward his concerns about the permanent character of the RAM expansion, to quote him, and my replies: First, there can never be external 3K. That is only a 'problem' if the ex...

No internal hacks then, I guess? An internal +3K RAM expansion with the additional benefit it can be accessed by the VIC video chip - this is not possible with an external expansion! +8K or +16K RAM expansion piggybacked on the BASIC and KERNAL ROM chips. Could be extended to +24K or +32K by adding...