From 62936ddfac8627f5909ae7bd2abcdd6b0015a567 Mon Sep 17 00:00:00 2001
From: wheremyfoodat <gponiris2004@gmail.com>
Date: Wed, 17 May 2023 02:34:48 +0300
Subject: [PATCH] [DSP] Annotate pipe 2 addresses

---
 include/services/dsp.hpp | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/include/services/dsp.hpp b/include/services/dsp.hpp
index b9bc7d54..a63c4e3f 100644
--- a/include/services/dsp.hpp
+++ b/include/services/dsp.hpp
@@ -8,23 +8,25 @@
 // Stub for DSP audio pipe
 class DSPPipe {
 	// Hardcoded responses for now
+	// These are DSP DRAM offsets for various variables
+	// https://www.3dbrew.org/wiki/DSP_Memory_Region
 	static constexpr std::array<u16, 16> pipeData = {
-		0x000F, //Number of responses
-		0xBFFF,
-		0x9E8E,
-		0x8680,
-		0xA78E,
-		0x9430,
-		0x8400,
-		0x8540,
-		0x948E,
-		0x8710,
-		0x8410,
-		0xA90E,
-		0xAA0E,
-		0xAACE,
-		0xAC4E,
-		0xAC58
+		0x000F, // Number of responses
+		0xBFFF, // Frame counter
+		0x9E92, // Source configs
+		0x8680, // Source statuses
+		0xA792, // ADPCM coefficients
+		0x9430, // DSP configs
+		0x8400, // DSP status
+		0x8540, // Final samples
+		0x9492, // Intermediate mix samples
+		0x8710, // Compressor
+		0x8410, // Debug
+		0xA912, // ??
+		0xAA12, // ??
+		0xAAD2, // ??
+		0xAC52, // Surround sound biquad filter 1
+		0xAC5C  // Surround sound biquad filter 2
 	};
 	uint index = 0;