Apple-2gs-SW/libsoundGS
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Christopher Shepherd 2012-12-29 14:02:02 -05:00
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@ -6,3 +6,5 @@ Apple IIGS sound library
Streams a long-playing song from disk, also supports playing of other one-shot sounds while this is happening.
Written in ORCA/M assembler, but presents a C stack-based calling interface (was written with the intent of linking to ORCA/C modules).
Noteworthy as a demonstration of most aspects of controlling the Ensoniq 5503 DOC sound chip, including the Apple IIGS technique of moving Direct Page to $C000 and using the 65816 stack instructions to move data into the sound chip's 1-byte data register as quickly as possible.