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woz64/hardware/sid.asm

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2020-01-20 07:32:37 +00:00
#importonce
.filenamespace Sid
https://www.c64-wiki.com/wiki/SID
// ========================================================
// ////// CONSTANTS ///////////////////////////////////////
// ========================================================
.label FV1L = $d400 // frequency voice 1 low byte
.label FV1H = $d401 // frequency voice 1 high byte
.label PCWV1L = $d402 // pulse wave duty cycle voice 1 low byte
// TODO: Add more
.label FMVC = $d418 // filter mode and main volume control
// Bit 7 mute voice 3
// Bit 6 high pass
// Bit 5 band pass
// Bit 4 low pass
// Bit 3-0 main volume