Nice from a theoretical standpoint, but in practice the human eye is least sensitive to changes in blue, and most sensitive to changes in green, so 3-3-3 RGB is probably not noticeably different from 3-3-2 RGB.



There are two. My first thought was "just make macros to emit the instructions and data you want until you're satisfied with the set, then hard-code a native version".

But then it occurred to me that, at least in HXA's case, it doesn't know anything about 18-bit "byte" sizes. It knows 8-, 16- and 32-bit "byte" sizes. Binary output is not a problem in any case, and it's not too difficult to create more-or-less familiar-looking Intel and Motorola output files.

So...generalizing to "byte" sizes that are not multiples of eight seems doable but not simple. Offhand, it would appear to involve packing the non-standard "bytes" into the least common multiple of eight and the non-standard size for output, since the creation tools "think" in terms of eight-bit bytes.

If a text output is desired (ie., non-binary), there'd have to be some way to indicate to a loader what the "byte" size is - as well as writing a loader that can handle non-standard sizes in the first place. Maybe not too difficult if only one non-standard size is involved - then it would "know" and not need any kind of flag - but there are a lot of different sizes being tossed around here, and a standard solution might be preferrable to multiple one-offs.

From 2 to 3 bits is still going to be very noticeable, even for blue.

Three if you count my easy6502 fork! (https://github.com/BigEd/6502js)
Cheers
Ed

That's great! Yes, I depend heavily on the timers and on the synchronous-serial port which uses Timer 2 in some of its modes. At the page linked above, its says,
but the link in it is dead and after a few minutes of looking around the site I did not find the 6522 VHDL project. Do you know where it got moved to? They say they have a new site under construction, but there doesn't seem to be anything there yet.

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http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

There's a link at the bottom of Mike's page in the "Downloads" section, pointing to this zip file: http://www.mikestirling.co.uk/files/bbc ... 110918.zip

Peter Wendrich has a 6526 CIA in VHDL also. Not sure if it is complete though. It's under older versions: /zips/fpga64_027.zip (20081009).

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65Org16:https://github.com/ElEctric-EyE/verilog-6502