10 ms·
Impressive piece of software building on the already impressive technique to play 8-bit that Mahoney invented. A good moment to remember https://github.com/mar
by ainiriand 9y ago
Impressive piece of software building on the already impressive technique to play 8-bit that Mahoney invented.
A good moment to remember https://github.com/marioballano/emudore https://github.com/marioballano/emudore so I can experiment with this thing on the weekend.
- vardump 9y agoCorrect me if I'm wrong, but this doesn't seem to use Mahoney technique, it's just doing the plain old technique of writing SID volume register at 0xd418: l: nop sample: ldx $8400 + i*$100 ldy $8000,x lda sidtable,y sta $d418 inc sample +1 bit $ea ldy $8100,x lda sidtable,y sta $d418 inc $d020 ...
- popmilo2 9y agoIt is based on Mahoney technique. Achievement is in added decompression routine that works in those 21 cycles per sample. Lot's of cool info in that article. Nicely done !
- vardump 9y agoYeah, you're right. Found a very good description here: https://livet.se/mahoney/c64-files/Musik_RunStop_Technical_Details_by_Pex_Mahoney_Tufvesson_v2.pdf https://livet.se/mahoney/c64-files/Musik_RunStop_Technical_D... Interesting story about accidental discoveries and using oscilloscope to get compensation tables for different types of SID chips.