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Prototype #2 is aliiiive!
Posted: Sat Jan 02, 2021 5:48 am
by codewar65
Progress!! Huzzah to 2021!
Prototype #2 is aliiiive!
Posted: Sat Jan 02, 2021 9:55 pm
by TomXP411
This is fantastic. The fact that the hardware is running software that was designed on the emulator, and never run on real hardware, is super exciting.
Prototype #2 is aliiiive!
Posted: Sat Jan 02, 2021 10:20 pm
by Fnord42
That's kind of the point of an emulator, though. ?
PS: It is, of course, still exciting and very cool.
Prototype #2 is aliiiive!
Posted: Sun Jan 03, 2021 9:26 pm
by Jeff Pare
I'm subscribed to Adrian's channel partly because he's a superb troubleshooter - very glad he helped the project this way!
He also has the most 80s intro music, which is cool.
Prototype #2 is aliiiive!
Posted: Mon Jan 04, 2021 5:13 am
by m00dawg
Another update from Kevin! I looked around and didn't see that it was posted yet, but sorry if it was and I missed it:
Prototype #2 is aliiiive!
Posted: Mon Jan 04, 2021 5:27 am
by Perifractic
13 minutes ago, m00dawg said:
Another update from Kevin! I looked around and didn't see that it was posted yet, but sorry if it was and I missed it:
Was just coming here to post it but you beat me to it
?
Prototype #2 is aliiiive!
Posted: Mon Jan 04, 2021 5:33 am
by m00dawg
Quite an update too! I don't want to spoil it but some juicy tidbits and answers to at least one question that I know several folks will be happy to find the answer to!
Prototype #2 is aliiiive!
Posted: Mon Jan 04, 2021 5:18 pm
by troj
Awesome to see some of the details, and it's not surprising things are evolving a bit as prototypes are built and tested.
What's an amazing testament to the planning the team has done is that the code changes required look to be relatively minor.
Prototype #2 is aliiiive!
Posted: Tue Jan 05, 2021 8:18 am
by kktos
As a dev, I'm a tad displeased by the change for Bank Switching to ZP $00/$01.....
Not coherent with all the other system switches (mem location wise, I mean).
Taking 2 addresses on the tiny and already packed ZP.
Am I the only one ?
Prototype #2 is aliiiive!
Posted: Tue Jan 05, 2021 10:05 am
by StinkerB06
1 hour ago, kktos said:
As a dev, I'm a tad displeased by the change for Bank Switching to ZP $00/$01.....
Not coherent with all the other system switches (mem location wise, I mean).
Taking 2 addresses on the tiny and already packed ZP.
Am I the only one ?
2 out of 256 bytes? Doesn't sound like very much to me! Those are the same addresses as the 6510's I/O direction and data registers, itself is used in the C64.
Oh, if I remember, ZP locations $02 to $7F are allowed to be used by the user, locations $80 to $FF are used by the kernel. $02 to $21 supposedly are designed to be sixteen virtual 16-bit registers (or 32 8-bit registers, since changing values in memory must be done on a byte-by-byte basis). You can see these defined within
@SlithyMatt's assembly code.