ref: 92275f3b95309a13c8e1aa136bb62e7f6ea71458
dir: /ay/piper/
#!/bin/rc
rfork ne
awk '
BEGIN {
eb[1] = "Hold"
eb[2] = "Alternate"
eb[4] = "Attack"
eb[8] = "Continue"
es["d"] = 0 # \_________
es["D"] = 8 # \|\|\|\|\|
es["a"] = 4 # /|________
es["A"] = 12 # /|/|/|/|/|
es["r"] = 14 # /\/\/\/\/\
es["R"] = 10 # \/\/\/\/\/
es["h"] = 13 # /¯¯¯¯¯¯¯¯¯
es["H"] = 11 # \|¯¯¯¯¯¯¯¯
period["0"] = 2000
period["1"] = 1000
period["2"] = 500
period["3"] = 333.3333
period["4"] = 250
period["5"] = 200
period["6"] = 166.6666
period["7"] = 142.8571
period["8"] = 125
period["9"] = 111.1111
period["a"] = 100
period["b"] = 50
chan["0"] = "A"
chan["1"] = "B"
chan["2"] = "C"
note["D","5"] = 587.3295
note["C","5"] = 523.2511
note["B","4"] = 493.8833
note["A","4"] = 440
note["G","4"] = 391.9954
note["F","4"] = 349.2282
note["E","4"] = 329.6276
note["D","4"] = 293.6648
note["C","4"] = 261.6256
note["B","3"] = 246.9417
note["A","3"] = 220
note["G","3"] = 195.9977
note["F","3"] = 174.6141
note["E","3"] = 164.8138
note["D","3"] = 146.8324
note["C","3"] = 130.8128
note["B","2"] = 123.4708
note["A","2"] = 110
note["G","2"] = 97.99886
note["F","2"] = 87.30706
note["E","2"] = 82.40689
note["D","2"] = 73.41619
note["C","2"] = 65.40639
note["B","1"] = 61.73541
note["A","1"] = 55
note["G","1"] = 48.99943
note["F","1"] = 43.65353
note["E","1"] = 41.20344
note["D","1"] = 36.70810
note["C","1"] = 32.70320
}
{
split($1, a, ",")
split(a[1], c, "")
}
# key
# kXCONVL
# 1234567
# X = ay number
# C = channel (0, 1, 2)
# O = octave
# N = note
# V = velocity
# L = length
/^k[0-9]/ {
path = "/n/ay/" c[2] "/AY-3-8910/"
ch = path chan[c[3]]
freq = note[c[5],c[4]]
if(freq != ""){
print freq >> (ch "/Tone/Frequency/ctl")
if(c[6] != "")
print c[6]/10 >> (ch "/Volume/ctl")
print (c[7] != "") >> (ch "/Envelope/ctl")
if(c[7] != "")
print period[c[7]] >> (path "/Envelope/Period/ctl")
print 1 >> (path "/Envelope/Hit/ctl")
}else{
c[6] = "" # stop playing if invalid note/octave
}
print (c[6] != "") >> (ch "/Tone/Enable/ctl")
fflush()
next
}
# envelope
# eXSP
# 1234
# X = ay number
# S = shape (see "es_" var)
# P = period (see "period" var)
/^e[0-9]/ {
# FIXME lol
next
}
'