archive.worldofdragon.org

I did some quick code size/speed optimization. Sound is a little bit cleaner now.

EDIT: Attachment (Zephyr-modified_v6.zip) removed.

I made a few more changes. Replaced the fake data idea with a proper music length counter. Rearranged the code a bit. Cleaned-up the source code to make it easier to read.

Thanks to Simon, there is a new file (jarre5) added to the .zip archive.

EDIT: Attachment (Zephyr-modified_v5.zip) removed.

I made a few more quick changes. Added fake pattern data to indicate end of music. Moved sound enable/disable routines above main code to keep $3F Direct Page addresses within range.

EDIT: Attachment (Zephyr-modified_v4.zip) removed.

I made the same changes to 1bitv4.asm and astroforce.asm. All three of the originals had the same problem of continuing after the end of the music. This resulted in random sounds, and not returning to basic when the music finished.

EDIT: Attachment (Zephyr-modified_v3.zip) removed.

I made a few more quick changes to the formx code. DAC is now always selected as the sound source.

EDIT: Attachment (formx3.zip)removed.

I made some quick changes to the formx code. The program now disables audio, and returns safely to basic when the music patterns end. Both source and compiled demo are attached.

I was quite surprised when I checked the source code.

EDIT: Attachment (formx2.zip) removed.

Thanks, Simon. Full source code, executable demo, and Beepola are now in the Uploads section.

A single bit PWM music engine from Simon Jonassen. Z80 to 6809 conversion by John Kowalski (Sock Master) . 1 bit revisited...... I hooked up with the LEGENDARY SOCKMASTER to work out this 1 bit routine.... I provided him with some z80 sourcecode which he quickly converted to 6809.... we tried it and...

Rink wrote: Really? Ack.

Maybe drop him a line and say that the lovely folks over at World of Dragon want to enjoy his engine.

Done.

I would like to see this converted for use on the Dragon 32/64. But, AFAIK there is no source or executable code available for download.