Search found 1348 matches
- Fri Jan 19, 2024 9:51 am
- Forum: Dragon Hardware
- Topic: Would a PicoDragon be a good idea?
- Replies: 1
- Views: 3361
Re: Would a PicoDragon be a good idea?
Maybe if you didn't use any of the fanciness... XRoar's become a lot more resource-hungry over the years, as reasonable assumptions of available desktop power climb. It might mean reverting some of the stuff that happens cycle-by-cycle now but used to be bunched up inaccurately for speed. And the vi...
- Sun Dec 31, 2023 7:04 pm
- Forum: Dragon Hardware
- Topic: SAMx4 1.0
- Replies: 1
- Views: 12525
Re: SAMx4 1.0
And now 1.2 - lots of work on the build system means you now don't have to touch the ISE GUI. You still need it installed of course, but if you set up your environment as usual, you can just type 'make' in the cpld/ directory and out pops a set of JED (and SVF) variants. BIG ASTERISK: only tested un...
- Fri Dec 22, 2023 11:40 am
- Forum: Dragon Hardware
- Topic: SAMx4 1.0
- Replies: 1
- Views: 12525
SAMx4 1.0
So thanks to lots of testing by Pedro Peña across his CoCo collection, SAMx4 now supports 4K and 16K ram sizes (and the extra 16K ram size in the '785). https://www.6809.org.uk/dragon/samx4/ Pedro's also designed a smaller version of the board, which is in the "rockyhill" branch in the gitlab reposi...
- Tue Dec 12, 2023 8:16 pm
- Forum: Dragon General
- Topic: Getting XRoar (or anything else) to save as ASCII
- Replies: 3
- Views: 16521
Re: Getting XRoar (or anything else) to save as ASCII
I've got a .CAS file with a big BASIC program in. I'd love to edit it on my computer. So I thought, simple, I'll save as ASCII from within XRoar - but, actually, can I do that? I can do a CSAVEM"STUFF",A - but it's still padded with a bunch of CAS stuff. So what's a nice simple way to get a BASIC f...
- Fri Dec 01, 2023 2:15 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
Re: SAM replacement - nearly there
Right. This works for everything odd I can find to throw at it. So at the risk of triggering a really obvious realisation, here's the current state of play, with downloads and what-not:
http://www.6809.org.uk/dragon/samx4/
http://www.6809.org.uk/dragon/samx4/
- Wed Nov 29, 2023 9:29 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
- Wed Nov 29, 2023 5:42 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
Re: SAM replacement - nearly there
I'll just add that without a testbench that Stewart whipped up, fixing that would have taken a _lot_ longer, so thanks a lot, Stew!
- Wed Nov 29, 2023 4:56 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
Re: SAM replacement - nearly there
http://www.6809.org.uk/tmp/samx4-wip/silky.mp4 I'm not especially keen on what I had to do to make that work (delay video mode register setting by two full cycles!), but work it does. So bar it turning out that it's screwed something else up by doing that, I'll try and prep the source etc. by the w...
- Sun Nov 26, 2023 10:00 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
Re: SAM replacement - nearly there
After a note from Stewart, the refresh tester output seems to be fixed (and along with it the transition from slow to actually-fast mode).
- Fri Nov 24, 2023 5:34 pm
- Forum: Dragon Hardware
- Topic: SAM replacement - there!
- Replies: 16
- Views: 141702
Re: SAM replacement - nearly there
Still not managed to figure out the glitch glitch, but I figured I'd test it with Phill's diag cart.
At first it completely failed! But once I removed the special-casing of $FF3x:
At first it completely failed! But once I removed the special-casing of $FF3x: