From f6104609f922aee5707e44ee5318818c96d3d40c Mon Sep 17 00:00:00 2001
From: Arisotura <thetotalworm@gmail.com>
Date: Wed, 9 Jul 2025 21:10:31 +0200
Subject: [PATCH] lay very basic base for HLE ucode stuff

---
 src/CMakeLists.txt         |   2 +
 src/DSP_HLE/Ucode_Base.cpp | 180 +++++++++++++++++++++++++++++++++++++
 src/DSP_HLE/Ucode_Base.h   |  73 +++++++++++++++
 3 files changed, 255 insertions(+)
 create mode 100644 src/DSP_HLE/Ucode_Base.cpp
 create mode 100644 src/DSP_HLE/Ucode_Base.h

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4fa4d514..fd83ddf3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -58,6 +58,8 @@ add_library(core STATIC
     Wifi.cpp
     WifiAP.cpp
 
+    DSP_HLE/Ucode_Base.cpp
+
     fatfs/ff.c
     fatfs/ffsystem.c
     fatfs/ffunicode.c
diff --git a/src/DSP_HLE/Ucode_Base.cpp b/src/DSP_HLE/Ucode_Base.cpp
new file mode 100644
index 00000000..e5e3a218
--- /dev/null
+++ b/src/DSP_HLE/Ucode_Base.cpp
@@ -0,0 +1,180 @@
+/*
+    Copyright 2016-2025 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS is free software: you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#include "../DSi.h"
+#include "../DSi_DSP.h"
+#include "Ucode_Base.h"
+#include "../Platform.h"
+
+
+namespace melonDS
+{
+using Platform::Log;
+using Platform::LogLevel;
+
+
+DSPHLE_UcodeBase::DSPHLE_UcodeBase()
+{
+    //
+}
+
+DSPHLE_UcodeBase::~DSPHLE_UcodeBase()
+{
+    //
+}
+
+void DSPHLE_UcodeBase::Reset()
+{
+    //
+}
+
+void DSPHLE_UcodeBase::DoSavestate(Savestate *file)
+{
+    //
+}
+
+bool DSPHLE_UcodeBase::SendDataIsEmpty(u8 index)
+{
+    //
+    return false;
+}
+
+bool DSPHLE_UcodeBase::RecvDataIsEmpty(u8 index)
+{
+    //
+    return false;
+}
+
+u16 DSPHLE_UcodeBase::DMAChan0GetDstHigh()
+{
+    //
+    return 0;
+}
+
+u16 DSPHLE_UcodeBase::AHBMGetDmaChannel(u16 index)
+{
+    //
+    return 0;
+}
+
+u16 DSPHLE_UcodeBase::AHBMGetDirection(u16 index)
+{
+    //
+    return 0;
+}
+
+u16 DSPHLE_UcodeBase::AHBMGetUnitSize(u16 index)
+{
+    //
+    return 0;
+}
+
+u16 DSPHLE_UcodeBase::DataReadA32(u32 addr)
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::DataWriteA32(u32 addr, u16 val)
+{
+    //
+}
+
+u16 DSPHLE_UcodeBase::MMIORead(u16 addr)
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::MMIOWrite(u16 addr, u16 val)
+{
+    //
+}
+
+u16 DSPHLE_UcodeBase::ProgramRead(u32 addr)
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::ProgramWrite(u32 addr, u16 val)
+{
+    //
+}
+
+u16 DSPHLE_UcodeBase::AHBMRead16(u32 addr)
+{
+    //
+    return 0;
+}
+
+u32 DSPHLE_UcodeBase::AHBMRead32(u32 addr)
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::AHBMWrite16(u32 addr, u16 val)
+{
+    //
+}
+
+void DSPHLE_UcodeBase::AHBMWrite32(u32 addr, u32 val)
+{
+    //
+}
+
+u16 DSPHLE_UcodeBase::GetSemaphore()
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::SetSemaphore(u16 val)
+{
+    //
+}
+
+void DSPHLE_UcodeBase::ClearSemaphore(u16 val)
+{
+    //
+}
+
+void DSPHLE_UcodeBase::MaskSemaphore(u16 val)
+{
+    //
+}
+
+u16 DSPHLE_UcodeBase::RecvData(u8 index)
+{
+    //
+    return 0;
+}
+
+void DSPHLE_UcodeBase::SendData(u8 index, u16 val)
+{
+    //
+}
+
+void DSPHLE_UcodeBase::Run(u32 cycles)
+{
+    //
+}
+
+
+}
\ No newline at end of file
diff --git a/src/DSP_HLE/Ucode_Base.h b/src/DSP_HLE/Ucode_Base.h
new file mode 100644
index 00000000..7e33e938
--- /dev/null
+++ b/src/DSP_HLE/Ucode_Base.h
@@ -0,0 +1,73 @@
+/*
+    Copyright 2016-2025 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS is free software: you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef UCODE_BASE_H
+#define UCODE_BASE_H
+
+#include <functional>
+
+#include "../types.h"
+#include "../Savestate.h"
+
+namespace melonDS
+{
+
+class DSPHLE_UcodeBase
+{
+public:
+    DSPHLE_UcodeBase();
+    ~DSPHLE_UcodeBase();
+    void Reset();
+    void DoSavestate(Savestate* file);
+
+    //void SetRecvDataHandler(u8 index, std::function<void()> func);
+    //void SetSemaphoreHandler(std::function<void()> func);
+
+    bool SendDataIsEmpty(u8 index);
+    bool RecvDataIsEmpty(u8 index);
+
+    u16 DMAChan0GetDstHigh();
+    u16 AHBMGetDmaChannel(u16 index);
+    u16 AHBMGetDirection(u16 index);
+    u16 AHBMGetUnitSize(u16 index);
+
+    u16 DataReadA32(u32 addr);
+    void DataWriteA32(u32 addr, u16 val);
+    u16 MMIORead(u16 addr);
+    void MMIOWrite(u16 addr, u16 val);
+    u16 ProgramRead(u32 addr);
+    void ProgramWrite(u32 addr, u16 val);
+    u16 AHBMRead16(u32 addr);
+    u32 AHBMRead32(u32 addr);
+    void AHBMWrite16(u32 addr, u16 val);
+    void AHBMWrite32(u32 addr, u32 val);
+
+    u16 GetSemaphore();
+    void SetSemaphore(u16 val);
+    void ClearSemaphore(u16 val);
+    void MaskSemaphore(u16 val);
+
+    u16 RecvData(u8 index);
+    void SendData(u8 index, u16 val);
+
+    void Run(u32 cycles);
+};
+
+}
+
+#endif // UCODE_BASE_H