descriptionA replay routine for the Atari ST, using the YM2149 chip.
homepage URLhttp://cipht.net/#ymamoto
ownerjulian@cipht.net
last changeSat, 17 Sep 2005 20:58:14 +0000 (17 21:58 +0100)
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                          YMamoto Alpha Zero
                 Julian Squires <tek@wiw.org> / 2004

                            ABOUT YMAMOTO

YMamoto is my first attempt at a reasonable music playroutine for the
Atari ST.  The design goal is to allow the production of interesting
music; I considered adding efficiency of {memory usage, song size,
cycles per frame} to the set of goals, but I decided that aiming at
any of these things directly would just cripple the main goal, until I
am more familiar with the ST and the YM.

So, YMamoto, when finished, should be suitable at least for music
disks and parts of demos where cycles aren't too scarce.
shortlog
2005-09-17 Julian SquiresCleaned up a little.master
2005-07-16 Julian SquiresFew bug fixes -- primarily, fixed really stupid playtes...
2005-07-15 Julian SquiresThanks to m68k-asm, playroutine and demo updated to...
2005-01-13 Julian SquiresSome attempts to fix broken playroutine, some demo...
2005-01-11 Julian SquiresMoved to use MiNT tools.
2004-12-30 Julian SquiresAlternate approach to writing registers.
2004-12-29 Julian SquiresBasic vibrato support.
2004-12-28 Julian SquiresPrimitive env-follow experiments.
2004-12-28 Julian SquiresAdded simple software volume envelopes.
2004-12-28 Julian SquiresBasic volume support.
2004-12-27 Julian SquiresCleaned up a few things; implemented channel loop.
2004-12-27 Julian SquiresMinor adjustment to pitch-setting code.
2004-12-10 Julian Squireschanged to fixed frame durations, added arpeggios.
2004-11-18 Julian Squiresinitial import.
heads
18 years ago master