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Decompile __n_vsVol

This commit is contained in:
Ryan Dwyer 2021-10-14 23:57:24 +10:00
parent 3bdfd02c81
commit 37fd63d7d4
1 changed files with 18 additions and 79 deletions
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97
src/lib/naudio/n_seqplayer.c
View File

@ -337,85 +337,24 @@ glabel func0003d72c
/* 3d8a0: 27bd0018 */ addiu $sp,$sp,0x18
);
GLOBAL_ASM(
glabel __n_vsVol
/* 3d8a4: 27bdfff8 */ addiu $sp,$sp,-8
/* 3d8a8: 908e0036 */ lbu $t6,0x36($a0)
/* 3d8ac: 908f0033 */ lbu $t7,0x33($a0)
/* 3d8b0: 90990030 */ lbu $t9,0x30($a0)
/* 3d8b4: 01cf0019 */ multu $t6,$t7
/* 3d8b8: 0000c012 */ mflo $t8
/* 3d8bc: 00000000 */ nop
/* 3d8c0: 00000000 */ nop
/* 3d8c4: 03190019 */ multu $t8,$t9
/* 3d8c8: 00004012 */ mflo $t0
/* 3d8cc: 00084983 */ sra $t1,$t0,0x6
/* 3d8d0: afa90004 */ sw $t1,0x4($sp)
/* 3d8d4: 8c8f0020 */ lw $t7,0x20($a0)
/* 3d8d8: 84b90032 */ lh $t9,0x32($a1)
/* 3d8dc: 908b0031 */ lbu $t3,0x31($a0)
/* 3d8e0: 91f8000d */ lbu $t8,0xd($t7)
/* 3d8e4: 8caa0060 */ lw $t2,0x60($a1)
/* 3d8e8: 000b6080 */ sll $t4,$t3,0x2
/* 3d8ec: 03190019 */ multu $t8,$t9
/* 3d8f0: 018b6023 */ subu $t4,$t4,$t3
/* 3d8f4: 000c6080 */ sll $t4,$t4,0x2
/* 3d8f8: 018b6021 */ addu $t4,$t4,$t3
/* 3d8fc: 000c6080 */ sll $t4,$t4,0x2
/* 3d900: 014c6821 */ addu $t5,$t2,$t4
/* 3d904: 91ae0009 */ lbu $t6,0x9($t5)
/* 3d908: 00004012 */ mflo $t0
/* 3d90c: 00000000 */ nop
/* 3d910: 00000000 */ nop
/* 3d914: 01c80019 */ multu $t6,$t0
/* 3d918: 00004812 */ mflo $t1
/* 3d91c: 00095b83 */ sra $t3,$t1,0xe
/* 3d920: afab0000 */ sw $t3,0x0($sp)
/* 3d924: 908c0031 */ lbu $t4,0x31($a0)
/* 3d928: 8caa0060 */ lw $t2,0x60($a1)
/* 3d92c: 240100ff */ addiu $at,$zero,0xff
/* 3d930: 000c6880 */ sll $t5,$t4,0x2
/* 3d934: 01ac6823 */ subu $t5,$t5,$t4
/* 3d938: 000d6880 */ sll $t5,$t5,0x2
/* 3d93c: 01ac6821 */ addu $t5,$t5,$t4
/* 3d940: 000d6880 */ sll $t5,$t5,0x2
/* 3d944: 014d7821 */ addu $t7,$t2,$t5
/* 3d948: 91f8000d */ lbu $t8,0xd($t7)
/* 3d94c: 13010010 */ beq $t8,$at,.L0003d990
/* 3d950: 00000000 */ nop
/* 3d954: 908e0031 */ lbu $t6,0x31($a0)
/* 3d958: 8cb90060 */ lw $t9,0x60($a1)
/* 3d95c: 8fac0000 */ lw $t4,0x0($sp)
/* 3d960: 000e4080 */ sll $t0,$t6,0x2
/* 3d964: 010e4023 */ subu $t0,$t0,$t6
/* 3d968: 00084080 */ sll $t0,$t0,0x2
/* 3d96c: 010e4021 */ addu $t0,$t0,$t6
/* 3d970: 00084080 */ sll $t0,$t0,0x2
/* 3d974: 03284821 */ addu $t1,$t9,$t0
/* 3d978: 912b000d */ lbu $t3,0xd($t1)
/* 3d97c: 016c0019 */ multu $t3,$t4
/* 3d980: 00005012 */ mflo $t2
/* 3d984: 254d0001 */ addiu $t5,$t2,0x1
/* 3d988: 000d7a02 */ srl $t7,$t5,0x8
/* 3d98c: afaf0000 */ sw $t7,0x0($sp)
.L0003d990:
/* 3d990: 8fb80004 */ lw $t8,0x4($sp)
/* 3d994: 8fae0000 */ lw $t6,0x0($sp)
/* 3d998: 030e0019 */ multu $t8,$t6
/* 3d99c: 0000c812 */ mflo $t9
/* 3d9a0: afb90004 */ sw $t9,0x4($sp)
/* 3d9a4: 00000000 */ nop
/* 3d9a8: 8fa80004 */ lw $t0,0x4($sp)
/* 3d9ac: 00084bc2 */ srl $t1,$t0,0xf
/* 3d9b0: afa90004 */ sw $t1,0x4($sp)
/* 3d9b4: 10000003 */ b .L0003d9c4
/* 3d9b8: 87a20006 */ lh $v0,0x6($sp)
/* 3d9bc: 10000001 */ b .L0003d9c4
/* 3d9c0: 00000000 */ nop
.L0003d9c4:
/* 3d9c4: 03e00008 */ jr $ra
/* 3d9c8: 27bd0008 */ addiu $sp,$sp,0x8
);
/**
* __n_vsVol calculates the target volume for the voice based on the
* note on velocity, envelope, sampleVolume and controller.
*/
s16 __n_vsVol(N_ALVoiceState *vs, N_ALSeqPlayer *seqp)
{
u32 t1 = (vs->tremelo * vs->velocity * vs->envGain) >> 6;
u32 t2 = (vs->sound->sampleVolume * seqp->vol * seqp->chanState[vs->channel].vol) >> 14;
if (seqp->chanState[vs->channel].unk0d != 0xff) {
t2 = (seqp->chanState[vs->channel].unk0d * t2 + 1) >> 8;
}
t1 *= t2;
t1 >>= 15;
return t1;
}
GLOBAL_ASM(
glabel func0003d9cc