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CasualPokePlayerCasualPokePlayer
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Add code for identifying the current DSP ucode
Doesn't do much here, at most it provides some debug info Lays a very shallow foundation for any potential DSP HLE
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5 files changed

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lines changed

5 files changed

+208
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lines changed

‎src/CMakeLists.txt

+1
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,7 @@ add_library(core STATIC
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DSi_AES.cpp
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DSi_Camera.cpp
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DSi_DSP.cpp
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DSi_DSP_UCodes.cpp
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DSi_I2C.cpp
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DSi_NAND.cpp
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DSi_NDMA.cpp

‎src/DSi_DSP.cpp

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@@ -20,6 +20,7 @@
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#include "DSi.h"
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#include "DSi_DSP.h"
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#include "DSi_DSP_UCodes.h"
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#include "FIFO.h"
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#include "NDS.h"
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#include "Platform.h"
@@ -113,6 +114,7 @@ DSi_DSP::DSi_DSP(melonDS::DSi& dsi) : DSi(dsi)
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TeakraCore = new Teakra::Teakra();
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SCFG_RST = false;
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CurrentUCodeID = UCodeID::UNKNOWN;
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// ????
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//if (!TeakraCore) return false;
@@ -188,6 +190,11 @@ bool DSi_DSP::IsRstReleased() const
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}
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void DSi_DSP::SetRstLine(bool release)
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{
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if (!SCFG_RST && release)
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{
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CurrentUCodeID = IdentifyUCode(DSi);
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}
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SCFG_RST = release;
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Reset();
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DSPTimestamp = DSi.ARM9Timestamp; // only start now!

‎src/DSi_DSP.h

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@@ -30,6 +30,7 @@ namespace Teakra { class Teakra; }
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namespace melonDS
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{
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class DSi;
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enum class UCodeID;
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class DSi_DSP
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{
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public:
@@ -74,6 +75,7 @@ class DSi_DSP
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u16 SNDExCnt;
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Teakra::Teakra* TeakraCore;
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UCodeID CurrentUCodeID;
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bool SCFG_RST;
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‎src/DSi_DSP_UCodes.cpp

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@@ -0,0 +1,95 @@
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/*
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Copyright 2016-2024 melonDS team
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#include "DSi.h"
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#include "DSi_DSP_UCodes.h"
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#include "CRC32.h"
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#include "Platform.h"
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namespace melonDS
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{
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using Platform::Log;
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using Platform::LogLevel;
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// static block of zero'd memory for unmapped DSP memory
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static const u8 DSPZeroPage[0x8000] = {};
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UCodeID IdentifyUCode(melonDS::DSi& dsi)
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{
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u32 crc = 0;
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// Hash NWRAM B, which contains the DSP program
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// The hash should be in the DSP's memory view
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for (u32 addr = 0; addr < 0x40000; addr += 0x8000)
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{
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const u8* ptr = dsi.NWRAMMap_B[2][(addr >> 15) & 0x7];
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if (!ptr) ptr = DSPZeroPage;
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crc = CRC32(ptr, 0x8000, crc);
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}
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switch (crc)
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{
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case 0x7867C94B:
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Log(LogLevel::Debug, "Identified AAC Sound App DSP UCode\n");
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return UCodeID::AAC_SOUND_APP;
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case 0x0CAFEF48:
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Log(LogLevel::Debug, "Identified AAC SDK v0 DSP UCode\n");
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return UCodeID::AAC_SDK_V0;
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case 0xCD2A8B1B:
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Log(LogLevel::Debug, "Identified Graphics SDK v0 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V0;
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case 0x7EEE19FE:
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Log(LogLevel::Debug, "Identified G711 SDK v1 DSP UCode\n");
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return UCodeID::G711_SDK_V1;
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case 0x7323B75B:
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Log(LogLevel::Debug, "Identified Graphics SDK v1 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V1;
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case 0xBD4B63B6:
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Log(LogLevel::Debug, "Identified Graphics SDK v1 Patch DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V1_PATCH;
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case 0x6056C6FF:
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Log(LogLevel::Debug, "Identified G711 SDK v2 DSP UCode\n");
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return UCodeID::G711_SDK_V2;
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case 0x448BB6A2:
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Log(LogLevel::Debug, "Identified Graphics SDK v2 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V2;
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case 0x2C281DAE:
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Log(LogLevel::Debug, "Identified G711 SDK v3 DSP UCode\n");
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return UCodeID::G711_SDK_V3;
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case 0x63CAEC33:
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Log(LogLevel::Debug, "Identified Graphics SDK v3 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V3;
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case 0x2A1D7F94:
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Log(LogLevel::Debug, "Identified G711 SDK v4 DSP UCode\n");
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return UCodeID::G711_SDK_V4;
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case 0x1451EB84:
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Log(LogLevel::Debug, "Identified Graphics SDK v4 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V4;
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case 0x4EBEB519:
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Log(LogLevel::Debug, "Identified G711 SDK v5 DSP UCode\n");
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return UCodeID::G711_SDK_V5;
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case 0x2C974FC8:
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Log(LogLevel::Debug, "Identified Graphics SDK v5 DSP UCode\n");
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return UCodeID::GRAPHICS_SDK_V5;
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default:
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Log(LogLevel::Debug, "Unknown DSP UCode (CRC = %08X)\n", crc);
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return UCodeID::UNKNOWN;
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}
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}
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}

‎src/DSi_DSP_UCodes.h

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@@ -0,0 +1,103 @@
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/*
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Copyright 2016-2024 melonDS team
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
9+
any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13+
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef DSI_DSP_UCODES_H
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#define DSI_DSP_UCODES_H
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namespace melonDS
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{
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class DSi;
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// DSP ucodes are COFF files embed into the DSi ROM in some fashion
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// DSP ucodes all appear to simply be from the DSi's SDK (as evidenced by the build paths in the COFF)
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// Presumingly, developers could not actually make their own ucodes, that was reserved for Nintendo
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enum class UCodeID
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{
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// AAC decoder in DSi Sound app
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// COFF build timestamp: 8/4/2008
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// This appears to be from an extremely early version of the DSi's SDK
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// This SDK was presumingly never available to 3rd party developers, as the build timestamp is before the DSi's release
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// As such, nothing else appears to use this ucode
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AAC_SOUND_APP,
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// AAC decoder present in v0 SDK
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// COFF build timestamp: 10/21/2008
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// At least 1 DSiWare app (Futo Sutando Tsuki - Banbura DX Rajio) is known to contain this
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AAC_SDK_V0,
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// Graphics ucode present in v0 SDK
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// COFF build timestamp: 10/21/2008
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// As least 1 DSiWare app (Hobonichi Rosenzu 2010, rev 0) is known to contain this
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GRAPHICS_SDK_V0,
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// G711 encoder/decoder present in v1 SDK
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// COFF build timestamp: 2/13/2009
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// Appears to be a replacement for the AAC decoder
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G711_SDK_V1,
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// Graphics ucode present in v1 SDK
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// COFF build timestamp: 2/13/2009
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GRAPHICS_SDK_V1,
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// Graphics ucode present in v1 SDK
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// COFF build timestamp: 4/3/2009
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// Appears to be a patch against the previous graphics ucode
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// Known to sometimes be present alongside the SDK v1 G711 ucode
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GRAPHICS_SDK_V1_PATCH,
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// G711 encoder/decoder present in v2 SDK
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// COFF build timestamp: 4/8/2009
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G711_SDK_V2,
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// Graphics ucode present in v2 SDK
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// COFF build timestamp: 4/8/2009
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GRAPHICS_SDK_V2,
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// G711 encoder/decoder present in v3 SDK
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// COFF build timestamp: 9/16/2009
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G711_SDK_V3,
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// Graphics ucode present in v3 SDK
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// COFF build timestamp: 9/16/2009
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GRAPHICS_SDK_V3,
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// G711 encoder/decoder present in v4 SDK
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// COFF build timestamp: 11/9/2009
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G711_SDK_V4,
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// Graphics ucode present in v4 SDK
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// COFF build timestamp: 11/9/2009
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GRAPHICS_SDK_V4,
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// G711 encoder/decoder present in v5 SDK
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// COFF build timestamp: 1/13/2010
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G711_SDK_V5,
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// Graphics ucode present in v5 SDK
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// COFF build timestamp: 1/13/2010
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GRAPHICS_SDK_V5,
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// Unknown ucode...
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UNKNOWN = -1,
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};
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UCodeID IdentifyUCode(melonDS::DSi& dsi);
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}
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#endif // DSI_DSP_UCODES_H

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