Restore saved channel settings

00012ab0: 27bdffe0 addiu r29,r29,0xffe0
00012ab4: afb10014 sw r17,0x0014(r29)
00012ab8: 00808821 addu r17,r4,r0             current MUS
00012abc: 3c048003 lui r4,0x8003
00012ac0: 8c842a5c lw r4,0x2a5c(r4)           root counter 2 event
00012ac4: afb20018 sw r18,0x0018(r29)
00012ac8: 00c09021 addu r18,r6,r0             0x34 of all accumulated valid channels
00012acc: afb00010 sw r16,0x0010(r29)
00012ad0: afbf001c sw r31,0x001c(r29)
00012ad4: 0c0087f1 jal 0x00021fc4             DisableEvent
00012ad8: 00058027 nor r16,r0,r5              bitmask for every valid channel
00012adc: 00122827 nor r5,r0,r18              nor'd accumulator valid
00012ae0: 8e220058 lw r2,0x0058(r17)          header information channel flags?
00012ae4: 3c048003 lui r4,0x8003
00012ae8: 8c842a5c lw r4,0x2a5c(r4)           root counter 2 event
00012aec: 3c038003 lui r3,0x8003
00012af0: 8c632a20 lw r3,0x2a20(r3)           0x34 of channels turned off by sound effects?
00012af4: 02028024 and r16,r16,r2             check which channels belong to this MUS?
00012af8: 02439025 or r18,r18,r3              accumulate
00012afc: 8e220060 lw r2,0x0060(r17)          
00012b00: 8e230068 lw r3,0x0068(r17)
00012b04: ae300058 sw r16,0x0058(r17)         store leftover channel flags to header
00012b08: 3c018003 lui r1,0x8003
00012b0c: ac322a20 sw r18,0x2a20(r1)          accumulated value of input MUS's valid channel's 0x34 and 0x34 of channels turned off by sfx
00012b10: 00a21024 and r2,r5,r2               bitmask NOR'd accumulator flags?
00012b14: ae220060 sw r2,0x0060(r17)          restore
00012b18: 3c028003 lui r2,0x8003
00012b1c: 8c422a0c lw r2,0x2a0c(r2)
00012b20: 00a31824 and r3,r5,r3
00012b24: ae230068 sw r3,0x0068(r17)          store LFOVoiceBits
00012b28: 00a21024 and r2,r5,r2
00012b2c: 3c018003 lui r1,0x8003
00012b30: ac222a0c sw r2,0x2a0c(r1)
00012b34: 8e22006c lw r2,0x006c(r17)          store LNoiseVoiceBits
00012b38: 8e230070 lw r3,0x0070(r17)
00012b3c: 00a21024 and r2,r5,r2
00012b40: 00a32824 and r5,r5,r3
00012b44: ae22006c sw r2,0x006c(r17)
00012b48: 0c0087ed jal 0x00021fb4             EnableEvent
00012b4c: ae250070 sw r5,0x0070(r17)          store ReverbVoiceBits
00012b50: 8fbf001c lw r31,0x001c(r29)
00012b54: 8fb20018 lw r18,0x0018(r29)
00012b58: 8fb10014 lw r17,0x0014(r29)
00012b5c: 8fb00010 lw r16,0x0010(r29)
00012b60: 27bd0020 addiu r29,r29,0x0020
00012b64: 03e00008 jr r31
00012b68: 00000000 nop