mirror of
https://github.com/irmen/prog8.git
synced 2024-07-05 22:29:04 +00:00
88 lines
2.8 KiB
Lua
88 lines
2.8 KiB
Lua
%import c64lib
|
|
|
|
main {
|
|
|
|
sub start() {
|
|
|
|
const ubyte waveform = %0001 ; triangle
|
|
|
|
c64.AD1 = %00011010
|
|
c64.SR1 = %00000000
|
|
c64.AD2 = %00011010
|
|
c64.SR2 = %00000000
|
|
c64.MVOL = 15
|
|
|
|
c64scr.print("will play the music from boulderdash,\nmade in 1984 by peter liepa.\npress enter to start: ")
|
|
c64.CHRIN()
|
|
c64.CLEARSCR()
|
|
|
|
while(true) {
|
|
for uword note in notes {
|
|
ubyte note1 = lsb(note)
|
|
ubyte note2 = msb(note)
|
|
c64.FREQ1 = music_freq_table[note1] ; set lo+hi freq of voice 1
|
|
c64.FREQ2 = music_freq_table[note2] ; set lo+hi freq of voice 2
|
|
|
|
; retrigger voice 1 and 2 ADSR
|
|
c64.CR1 = waveform <<4 | 0
|
|
c64.CR2 = waveform <<4 | 0
|
|
c64.CR1 = waveform <<4 | 1
|
|
c64.CR2 = waveform <<4 | 1
|
|
|
|
print_notes(note1, note2)
|
|
delay()
|
|
}
|
|
}
|
|
|
|
sub delay() {
|
|
for ubyte d in 0 to 12 {
|
|
while(c64.RASTER!=0) {
|
|
; tempo delay synced to screen refresh
|
|
}
|
|
}
|
|
}
|
|
|
|
sub print_notes(ubyte n1, ubyte n2) {
|
|
c64.CHROUT('\n')
|
|
c64scr.plot(n1/2, 24)
|
|
c64.COLOR=7
|
|
c64.CHROUT('Q')
|
|
c64scr.plot(n2/2, 24)
|
|
c64.COLOR=4
|
|
c64.CHROUT('Q')
|
|
}
|
|
}
|
|
|
|
; details about the boulderdash music can be found here:
|
|
; https://www.elmerproductions.com/sp/peterb/sounds.html#Theme%20tune
|
|
|
|
uword[] notes = [
|
|
$1622, $1d26, $2229, $252e, $1424, $1f27, $2029, $2730,
|
|
$122a, $122c, $1e2e, $1231, $202c, $3337, $212d, $3135,
|
|
$1622, $162e, $161d, $1624, $1420, $1430, $1424, $1420,
|
|
$1622, $162e, $161d, $1624, $1e2a, $1e3a, $1e2e, $1e2a,
|
|
$142c, $142c, $141b, $1422, $1c28, $1c38, $1c2c, $1c28,
|
|
$111d, $292d, $111f, $292e, $0f27, $0f27, $1633, $1627,
|
|
$162e, $162e, $162e, $162e, $222e, $222e, $162e, $162e,
|
|
$142e, $142e, $142e, $142e, $202e, $202e, $142e, $142e,
|
|
$162e, $322e, $162e, $332e, $222e, $322e, $162e, $332e,
|
|
$142e, $322e, $142e, $332e, $202c, $302c, $142c, $312c,
|
|
$162e, $163a, $162e, $3538, $222e, $2237, $162e, $3135,
|
|
$142c, $1438, $142c, $1438, $202c, $2033, $142c, $1438,
|
|
$162e, $322e, $162e, $332e, $222e, $322e, $162e, $332e,
|
|
$142e, $322e, $142e, $332e, $202c, $302c, $142c, $312c,
|
|
$2e32, $292e, $2629, $2226, $2c30, $272c, $2427, $1420,
|
|
$3532, $322e, $2e29, $2926, $2730, $242c, $2027, $1420
|
|
]
|
|
|
|
|
|
uword[] music_freq_table = [
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
732, 778, 826, 876, 928, 978, 1042, 1100, 1170, 1238, 1312, 1390, 1464, 1556,
|
|
1652, 1752, 1856, 1956, 2084, 2200, 2340, 2476, 2624, 2780, 2928, 3112, 3304,
|
|
3504, 3712, 3912, 4168, 4400, 4680, 4952, 5248, 5560, 5856, 6224, 6608, 7008,
|
|
7424, 7824, 8336, 8800, 9360, 9904, 10496, 11120, 11712
|
|
]
|
|
|
|
}
|