1 files changed, 63 insertions, 0 deletions
diff --git a/arm9/asm/NNS_SND_fader.s b/arm9/asm/NNS_SND_fader.s
new file mode 100644
index 00000000..938456a9
--- /dev/null
+++ b/arm9/asm/NNS_SND_fader.s
@@ -0,0 +1,63 @@
+	.include "asm/macros.inc"
+	.include "global.inc"
+
+	.section .text
+
+	arm_func_start NNSi_SndFaderIsFinished
+NNSi_SndFaderIsFinished: ; 0x020C3DDC
+	ldr r1, [r0, #0x8]
+	ldr r0, [r0, #0xc]
+	cmp r1, r0
+	movge r0, #0x1
+	movlt r0, #0x0
+	bx lr
+
+	arm_func_start NNSi_SndFaderUpdate
+NNSi_SndFaderUpdate: ; 0x020C3DF4
+	ldr r2, [r0, #0x8]
+	ldr r1, [r0, #0xc]
+	cmp r2, r1
+	addlt r1, r2, #0x1
+	strlt r1, [r0, #0x8]
+	bx lr
+
+	arm_func_start NNSi_SndFaderGet
+NNSi_SndFaderGet: ; 0x020C3E0C
+	stmdb sp!, {r4,lr}
+	ldr r1, [r0, #0xc]
+	ldr r2, [r0, #0x8]
+	cmp r2, r1
+	ldrge r0, [r0, #0x4]
+	ldmgeia sp!, {r4,pc}
+	ldr r4, [r0, #0x0]
+	ldr r0, [r0, #0x4]
+	sub r0, r0, r4
+	mul r0, r2, r0
+	bl _s32_div_f
+	add r0, r4, r0
+	ldmia sp!, {r4,pc}
+
+	arm_func_start NNSi_SndFaderSet
+NNSi_SndFaderSet: ; 0x020C3E40
+	stmdb sp!, {r4-r6,lr}
+	mov r6, r0
+	mov r5, r1
+	mov r4, r2
+	bl NNSi_SndFaderGet
+	str r0, [r6, #0x0]
+	str r5, [r6, #0x4]
+	str r4, [r6, #0xc]
+	mov r0, #0x0
+	str r0, [r6, #0x8]
+	ldmia sp!, {r4-r6,pc}
+
+	arm_func_start NNSi_SndFaderInit
+NNSi_SndFaderInit: ; 0x020C3E6C
+	mov r2, #0x0
+	str r2, [r0, #0x4]
+	ldr r1, [r0, #0x4]
+	str r1, [r0, #0x0]
+	str r2, [r0, #0xc]
+	ldr r1, [r0, #0xc]
+	str r1, [r0, #0x8]
+	bx lr