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About danwinslow

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  1. Harry - Again, this is all probably too hard for you. Try something smaller and easier. TGB *just* explained exactly how it works. Read the code he wrote above. Look up each location in Mapping The Atari. Read as much as you can until you understand what the code is doing. Then you will know how any code in any language accesses the RAM under the ROM.
  2. Bob, I simply gave my opinion. I already know the line is blurred, if that's your point. Faster may not be all that simple, since we've only one accelerator in common usage and it has compatibility problems. Anything anybody wants to do is fine by me, I'm not judging. The point of the thread is that maybe this thing can be adapted to do something cool for the Atari 8 bit world.
  3. Well, true, and that's the point. I'm more on the conventional side of the argument. If you change too much then you might as well just use a modern machine. I would just like a compatible accelerator that would add some extra speed but not radically change the machine.
  4. So, this line of argument has been done to death. We all know where we stand. I would want to use this board as an accelerator plugin to enhance the machine, not render it unnecessary. No 100hz, no thousands of of softsprites....just a little faster of a machine but hopefully more compatible than Rapidus.
  5. Yeah, it's not going to be a 100MHZ atari. But, I think maybe with some work we could turn it into something that would allow extra processing capability during vblank or dli's, that could be very useful. Yes, it's got to live with the external bus speeds, and access to RAM will be as slow. Even just a system that doubled the 1.79 speed exactly would be an mprovement. I don't know if it makes sense to think about some kind of faster RAM local to the cpu, kind of like a cpu cache that it could use, off the bus and free to use at a faster rate while still being able to use the regular RAM. There's a lot I don't know, but we've seen some amazing things done and this just seems really promising.
  6. They said it was 6502C compatible...I thought that was what we used? Anyway, I bet you guys could do something cool with this.
  7. http://www.e-basteln.de/computing/65f02/65f02/ Seems like a neat idea.
  8. -lc C lib maybe? https://stackoverflow.com/questions/6240639/where-is-the-standard-c-library-on-mac-os-x
  9. Well, maybe you can get a 9th byte in there. Progress!
  10. Nice. That's a great bit of syntactic sugar. This is getting to be pretty amazing.
  11. The mystery is revealed in the first post. Anytime somebody posts "This is not a troll"...well, y'know. It is.
  12. You can use a few bits and pieces here and there, but it's generally not worth it as a utility library for general programming. You can use anything that isn't used by the DOS....and you can figure out where DOS stops by using some memory values. You need to READ mapping the atari and de re atari, not just peruse them. You don't need to write us a utility to use low memory, we all pretty much know what is there and can use it if we feel like it. There really is no magical piece of low memory that you can make useful to anybody in the general case, there are way too many failure cases.
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