Search found 358 matches

by JamesD
Wed Nov 15, 2006 7:50 pm
Forum: Games
Topic: Space99 - Development Forum
Replies: 401
Views: 529454

by JamesD
Wed Nov 15, 2006 2:47 am
Forum: Games
Topic: Space99 - Development Forum
Replies: 401
Views: 529454

The door animation looks good but your character halts briefly while it opens even if you aren't right by the door yet. The character shouldn't pause until right next to the door. Some other comments... It would be easier to control the character with 4 directional keys or a joystick but then you ha...
by JamesD
Mon Nov 13, 2006 7:00 pm
Forum: Games
Topic: Space99 - Development Forum
Replies: 401
Views: 529454

Still you will notice that program execution seems to halt for a few milliseconds from time to time. And I have no idea why . It only happens when I move some internal buffers to the text charset area. Interrupts are enabled. Does anyone have any idea why this is happening? I need help! I might che...
by JamesD
Mon Nov 13, 2006 5:54 pm
Forum: Audio tools
Topic: Your AY playroutine Mike :)
Replies: 13
Views: 31531

What did you use to edit the music?
by JamesD
Mon Nov 13, 2006 4:52 am
Forum: Technical questions
Topic: Bigger capacity disc idea
Replies: 7
Views: 15186

I you are going to go to a larger capacity device you might as well go with an compact flash interface. The circuit is actually smaller than the floppy interface plans I saw for the ORIC and you can probably borrow most of the firmware from the Apple II IDE controllers.
by JamesD
Sun Nov 12, 2006 11:05 pm
Forum: Audio tools
Topic: MYM Player
Replies: 7
Views: 24858

I'm working on a music player for another 8 bit and the best thing I've been able to come up with to reduce the size of these files and still have portability is a virtual machine of sorts. Kinda like what infocom's ZMachine did for adventures but for music. It would have a few registers for counter...
by JamesD
Fri Nov 10, 2006 1:21 am
Forum: Games
Topic: Space99 - Development Forum
Replies: 401
Views: 529454

Don't label the buttons with anything but numbers. That way you have to explore to figure out what is on each level.
by JamesD
Thu Nov 09, 2006 11:46 pm
Forum: Audio tools
Topic: Your AY playroutine Mike :)
Replies: 13
Views: 31531

Beginning? Funny, it looks like it's all over in the code.
by JamesD
Thu Nov 09, 2006 11:23 pm
Forum: Audio tools
Topic: Your AY playroutine Mike :)
Replies: 13
Views: 31531

I kinda figured that's what it was going to be.
Then the registers for the sound chip aren't directly memory mapped but mapped through the VIA chip. Isn't that kinda slow?
by JamesD
Thu Nov 09, 2006 5:34 pm
Forum: Audio tools
Topic: Your AY playroutine Mike :)
Replies: 13
Views: 31531

Pardon my lack of ORIC knowledge but what are the VIA references here?
by JamesD
Thu Nov 09, 2006 4:57 am
Forum: Audio tools
Topic: Skype
Replies: 4
Views: 17471

I don't know any network audio format for voice that will do this. Voice has a variable frequency and tape normally has a fixed frequency.
You would need to be a custom app designed to deal with the frequency used for the data on the tape.
by JamesD
Tue Nov 07, 2006 8:12 pm
Forum: C programming
Topic: CC65 vs OSDK ?
Replies: 12
Views: 30335

BTW, if lcc doesn't have a decent peephole optimizer you should take a look at SDCC's source. It has a pretty good peephole optimizer based on pattern matching and it would be easy to implement optimizations for lcc/rcc16 if you were to extract the optimizer code and make it standalone.
by JamesD
Tue Nov 07, 2006 8:09 pm
Forum: C programming
Topic: CC65 vs OSDK ?
Replies: 12
Views: 30335

int should be 16 bit, not 8 bit. If you want to use 8 bits use char. If you don't like calling it char, typedef byte and use that.
The 6809 port of GCC uses 8 bit int's and it kills portability. The author added a command line flag to let you select 8 or 16 bit int's after enough people complained.