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Z80 & 68k Assembly =>
z80 & ez80 Assembly
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thebetter1
Advanced Newbie
Joined: 09 Jul 2008
Posts: 86
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 Posted: 22 Oct 2008 10:58:03 am Post subject: |
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I've got a bunch of questions about assembly that are not related to each other at all, so I would appreciate it if you would make it clear which question you are answering.
1. How are group variables formatted?
2. Where can I find documentation on all the calc's ports?
3. What exactly does a B_CALL do?
4. Where can I find a good masked sprite display routine?
I think I had more, but I can't remember them right now. |
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benryves
Active Member
Joined: 23 Feb 2006
Posts: 564
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| Posted: 22 Oct 2008 01:30:33 pm Post subject: |
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| Rather rough-and-ready replies: thebetter1 wrote: 1. How are group variables formatted? See the TI Link Protocol & File Format Guide.
Quote: 2. Where can I find documentation on all the calc's ports? WikiTI.
Quote: 3. What exactly does a B_CALL do? How BCALLs work on WikiTI. The bcall handler uses the argument to look up information about the target routine, then swaps in the correct page and jumps to its address. This allows for off-page calls as well as changing the address of routines without needing to reassemble programs.
Quote: 4. Where can I find a good masked sprite display routine? This one claims to be good.  |
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JoostinOnline
Active Member
Joined: 22 Aug 2007
Posts: 559
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| Posted: 22 Oct 2008 09:13:59 pm Post subject: |
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benryves wrote: Quote: 4. Where can I find a good masked sprite display routine? This one claims to be good.
[post="128151"]<{POST_SNAPBACK}>[/post]
So we know it must be!  |
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thebetter1
Advanced Newbie
Joined: 09 Jul 2008
Posts: 86
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| Posted: 23 Oct 2008 08:51:00 pm Post subject: |
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| Well, the link protocol guide doesn't say the format for group variables. Of course, it lists every other possible kind of variable, just like Ti's application guide. |
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brandonw
Advanced Member
Joined: 12 Jan 2007
Posts: 455
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| Posted: 23 Oct 2008 09:57:31 pm Post subject: |
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The format for group variables is pretty self-explanatory, examine it in an emulator or the Flash debugger. I can't remember if it's a list of all the VAT entries and then the data, or a bunch of VAT entry/data pairs for each variable.
But either way, group a couple of very small programs and look at it in the archive. |
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