image uploader
I'm finally starting to make decent progress on the vectrex core. Even though there are a couple other vectrex emulators to reference, it still took several hours of trace logs to figure out exactly what the system is trying to do to actually draw stuff.
It doesn't help that the system uses the 6522 controller which has a lot of little tricks in it. Of course at the same time I also had to sort out the bugs of the new CPU core, so that slowed things down as well.
Overall though it's getting there. I think the CPU core is pretty strong now, but the Vectrex doesn't seem to use the interrupt capabilities of the 6809 so that is untested.
Incidentally the 6809 is also used in some arcade machines like Simpsons, so it's theoretically possible to have a native version of that built as well, but I doubt that would ever happen.
Anyway there are still quite a few bugs to work out and a lot of cleanup to do. But, now that I can see things on the screen, I'm hoping things will move a bit quicker.
The next main things are sorting out remaining graphics bugs and getting control stick input working. maybe after that I can do some stuff to improve the display, but I'm not sure how much I can do without slowing things way way down.
Vectrex is coming along. I fixed up numerous cpu and display bugs.
I also tried to add some brightness glow to make it look more authentic.
Only major thing left is analog stick controls. Maybe I'll try to add in overlays but not sure yet.The game Spike has some voice clips. Do those work correctly in this new core? I remember the vecx libretro core didn't play those voice clips correctly, or not at all, at least on BizHawk anyways.
I've made pretty good progress cleaning up the remaining Vectrex bugs. I've implemented interrupts now so Bedlam works, which is one of the only games that make extensive use of interrupts. This was a good exercise because it revealed several bugs in the MC6809 core. This core is heading towards a releasable state.Yes, standard runs are needed and very appreciated here too
Me and the boys starting over our games of choice for the infinityieth time in a row because of just-found optimizations
So will this core be in the next stable release of BizHawk? (2.3.3, 2.4, whatever number you guys decide on :P)
So will this core be in the next stable release of BizHawk? (2.3.3, 2.4, whatever number you guys decide on :P)
I'm not interested in overlays since that's basically postprocessing
