diff --git a/include/JSystem/JAudio2/JAISound.h b/include/JSystem/JAudio2/JAISound.h
index 5e414ade24..0d38f39ce7 100644
--- a/include/JSystem/JAudio2/JAISound.h
+++ b/include/JSystem/JAudio2/JAISound.h
@@ -134,7 +134,7 @@ struct JAISoundStatus_ {
             u8 flag8 : 1;
         } flags;
     } state;
-    /* 0x4 */ u32 userdata_;
+    /* 0x4 */ uintptr_t userdata_;
 };  // Size: 0x8
 
 /**
@@ -294,8 +294,8 @@ public:
     void setAnimationState(u32 state) {
         status_.state.flags.animationState = state;
     }
-    u32 getUserData() const { return status_.userdata_; }
-    void setUserData(u32 userData) { status_.userdata_ = userData; }
+    uintptr_t getUserData() const { return status_.userdata_; }
+    void setUserData(uintptr_t userData) { status_.userdata_ = userData; }
     JAIAudible* getAudible() { return audible_; }
     bool isHandleAttached() const { return handle_ != NULL; }
     bool hasLifeTime() const { return status_.field_0x1.flags.flag2; }
diff --git a/include/JSystem/JAudio2/JASDSPInterface.h b/include/JSystem/JAudio2/JASDSPInterface.h
index d68727c9ea..0642fdc018 100644
--- a/include/JSystem/JAudio2/JASDSPInterface.h
+++ b/include/JSystem/JAudio2/JASDSPInterface.h
@@ -112,7 +112,7 @@ namespace JASDsp {
     void invalChannelAll();
     void initBuffer();
     int setFXLine(u8, s16*, JASDsp::FxlineConfig_*);
-    BOOL changeFXLineParam(u8, u8, u32);
+    BOOL changeFXLineParam(u8, u8, uintptr_t);
 
     extern u8 const DSPADPCM_FILTER[64];
     extern u32 const DSPRES_FILTER[320];
diff --git a/include/JSystem/JAudio2/JASHeapCtrl.h b/include/JSystem/JAudio2/JASHeapCtrl.h
index 05a97838b9..196c79edd5 100644
--- a/include/JSystem/JAudio2/JASHeapCtrl.h
+++ b/include/JSystem/JAudio2/JASHeapCtrl.h
@@ -265,13 +265,13 @@ namespace JASKernel {
     void setupRootHeap(JKRSolidHeap*, u32);
     JKRHeap* getSystemHeap();
     JASMemChunkPool<1024, JASThreadingModel::ObjectLevelLockable>* getCommandHeap();
-    void setupAramHeap(u32, u32);
+    void setupAramHeap(uintptr_t, u32);
     JASHeap* getAramHeap();
     u32 getAramFreeSize();
     u32 getAramSize();
 
     extern JASHeap audioAramHeap;
-    extern u32 sAramBase;
+    extern uintptr_t sAramBase;
     extern JKRHeap* sSystemHeap;
     extern JASMemChunkPool<1024, JASThreadingModel::ObjectLevelLockable>* sCommandHeap;
 };
diff --git a/include/JSystem/JAudio2/JASResArcLoader.h b/include/JSystem/JAudio2/JASResArcLoader.h
index 1b375e798e..bcaf1fb06f 100644
--- a/include/JSystem/JAudio2/JASResArcLoader.h
+++ b/include/JSystem/JAudio2/JASResArcLoader.h
@@ -8,10 +8,10 @@ namespace JASResArcLoader {
     size_t getResSize(JKRArchive const*, u16);
     size_t getResMaxSize(JKRArchive const*);
     static void loadResourceCallback(void*);
-    int loadResourceAsync(JKRArchive*, u16, u8*, u32, void (*)(u32, u32), u32);
+    int loadResourceAsync(JKRArchive*, u16, u8*, u32, void (*)(u32, uintptr_t), uintptr_t);
 
     // from pikmin2
-    typedef void (*LoadCallback)(u32, u32);
+    typedef void (*LoadCallback)(u32, uintptr_t);
 
     struct TLoadResInfo {
         inline TLoadResInfo(JKRArchive* archive, u16 id, void* buf, u32 size)
@@ -30,7 +30,7 @@ namespace JASResArcLoader {
         void* mBuffer;          // _08
         u32 mBufferSize;        // _0C
         LoadCallback mCallback; // _10
-        u32 mCallbackArg;       // _14, arg to pass to mCallback along with readResource result
+        uintptr_t mCallbackArg; // _14, arg to pass to mCallback along with readResource result
         OSMessageQueue* mQueue; // _18
     };
 };
diff --git a/include/JSystem/JKernel/JKRHeap.h b/include/JSystem/JKernel/JKRHeap.h
index 17b3059314..b6a0367bd0 100644
--- a/include/JSystem/JKernel/JKRHeap.h
+++ b/include/JSystem/JKernel/JKRHeap.h
@@ -72,7 +72,7 @@ public:
     JKRHeap* find(void* ptr) const;
     JKRHeap* findAllHeap(void* ptr) const;
 
-    void dispose_subroutine(u32 start, u32 end);
+    void dispose_subroutine(uintptr_t start, uintptr_t end);
     bool dispose(void* ptr, u32 size);
     void dispose(void* begin, void* end);
     void dispose();
diff --git a/include/f_op/f_op_scene_mng.h b/include/f_op/f_op_scene_mng.h
index 996a3b6d6e..20b847259a 100644
--- a/include/f_op/f_op_scene_mng.h
+++ b/include/f_op/f_op_scene_mng.h
@@ -4,14 +4,15 @@
 #include "f_op/f_op_scene_pause.h"
 #include "f_pc/f_pc_manager.h"
 #include "f_op/f_op_scene.h"
+#include <cstdint>
 
 typedef struct base_process_class base_process_class;
 
 scene_class* fopScnM_SearchByID(fpc_ProcID id);
 int fopScnM_ChangeReq(scene_class* i_scene, s16 i_procName, s16 param_3, u16 param_4);
 fpc_ProcID fopScnM_DeleteReq(scene_class* i_scene);
-int fopScnM_CreateReq(s16 i_procName, s16 param_2, u16 param_3, u32 i_data);
-u32 fopScnM_ReRequest(s16 i_procName, u32 i_data);
+int fopScnM_CreateReq(s16 i_procName, s16 param_2, u16 param_3, uintptr_t i_data);
+u32 fopScnM_ReRequest(s16 i_procName, uintptr_t i_data);
 void fopScnM_Management();
 void fopScnM_Init();
 
diff --git a/src/JSystem/JAudio2/JASAramStream.cpp b/src/JSystem/JAudio2/JASAramStream.cpp
index 61b00f2163..3c813af5f2 100644
--- a/src/JSystem/JAudio2/JASAramStream.cpp
+++ b/src/JSystem/JAudio2/JASAramStream.cpp
@@ -143,7 +143,7 @@ bool JASAramStream::start() {
 }
 
 bool JASAramStream::stop(u16 param_0) {
-    if (!OSSendMessage(&field_0x000, (OSMessage)(param_0 << 0x10 | 1), OS_MESSAGE_NOBLOCK)) {
+    if (!OSSendMessage(&field_0x000, (OSMessage)(uintptr_t)(param_0 << 0x10 | 1), OS_MESSAGE_NOBLOCK)) {
         JUT_WARN(290, "%s", "OSSendMessage Failed");
         return false;
     }
diff --git a/src/JSystem/JAudio2/JASDSPInterface.cpp b/src/JSystem/JAudio2/JASDSPInterface.cpp
index f777865186..9b6bbc069f 100644
--- a/src/JSystem/JAudio2/JASDSPInterface.cpp
+++ b/src/JSystem/JAudio2/JASDSPInterface.cpp
@@ -472,7 +472,7 @@ int JASDsp::setFXLine(u8 param_0, s16* buffer, JASDsp::FxlineConfig_* param_2) {
     return 1;
 }
 
-BOOL JASDsp::changeFXLineParam(u8 param_0, u8 param_1, u32 param_2) {
+BOOL JASDsp::changeFXLineParam(u8 param_0, u8 param_1, uintptr_t param_2) {
     JUT_ASSERT(450, dspMutex);
     FxBuf* buf = &FX_BUF[param_0];
     switch (param_1) {
diff --git a/src/JSystem/JAudio2/JASHeapCtrl.cpp b/src/JSystem/JAudio2/JASHeapCtrl.cpp
index e23ae3909f..f53676185e 100644
--- a/src/JSystem/JAudio2/JASHeapCtrl.cpp
+++ b/src/JSystem/JAudio2/JASHeapCtrl.cpp
@@ -285,7 +285,7 @@ void JASGenericMemPool::free(void* ptr, u32 param_1) {
     freeMemCount++;
 }
 
-u32 JASKernel::sAramBase;
+uintptr_t JASKernel::sAramBase;
 
 JKRHeap* JASKernel::sSystemHeap;
 
@@ -310,7 +310,7 @@ JASMemChunkPool<1024, JASThreadingModel::ObjectLevelLockable>* JASKernel::getCom
 
 JASHeap JASKernel::audioAramHeap;
 
-void JASKernel::setupAramHeap(u32 param_0, u32 param_1) {
+void JASKernel::setupAramHeap(uintptr_t param_0, u32 param_1) {
 #if !PLATFORM_GCN
     OSReport("setupAramHeap %x, %x, %x\n", param_0, ARGetBaseAddress(), param_1);
     param_0 = ARGetBaseAddress();
diff --git a/src/JSystem/JAudio2/JASResArcLoader.cpp b/src/JSystem/JAudio2/JASResArcLoader.cpp
index 7fb2aff736..a55c73469c 100644
--- a/src/JSystem/JAudio2/JASResArcLoader.cpp
+++ b/src/JSystem/JAudio2/JASResArcLoader.cpp
@@ -55,7 +55,7 @@ static void JASResArcLoader::loadResourceCallback(void* args) {
 }
 
 
-int JASResArcLoader::loadResourceAsync(JKRArchive* archive, u16 id, u8* buffer, u32 size, LoadCallback callback, u32 cbArg)
+int JASResArcLoader::loadResourceAsync(JKRArchive* archive, u16 id, u8* buffer, u32 size, LoadCallback callback, uintptr_t cbArg)
 {
 	TLoadResInfo args(archive, id, buffer, size);
 	args.mCallback    = callback;
diff --git a/src/JSystem/JAudio2/JAUSeqDataBlockMgr.cpp b/src/JSystem/JAudio2/JAUSeqDataBlockMgr.cpp
index 039137ff5d..6b31c78a29 100644
--- a/src/JSystem/JAudio2/JAUSeqDataBlockMgr.cpp
+++ b/src/JSystem/JAudio2/JAUSeqDataBlockMgr.cpp
@@ -111,7 +111,7 @@ bool JAUDynamicSeqDataBlocks::appendDynamicSeqDataBlock(JAUSeqDataBlock* seqData
     return 1;
 }
 
-static void JAUDynamicSeqDataBlocks_receiveLoaded_(u32 param_0, u32 param_1) {
+static void JAUDynamicSeqDataBlocks_receiveLoaded_(u32 param_0, uintptr_t param_1) {
     JSULink<JAUSeqDataBlock>* link = (JSULink<JAUSeqDataBlock>*)param_1;
     JAUSeqDataBlock* seqDataBlock = link->getObject();
     if (param_0 != 0) {
diff --git a/src/JSystem/JKernel/JKRDvdFile.cpp b/src/JSystem/JKernel/JKRDvdFile.cpp
index 41eec5809d..face6c824b 100644
--- a/src/JSystem/JKernel/JKRDvdFile.cpp
+++ b/src/JSystem/JKernel/JKRDvdFile.cpp
@@ -125,7 +125,7 @@ s32 JKRDvdFile::sync(void) {
 void JKRDvdFile::doneProcess(s32 id, DVDFileInfo* fileInfo) {
     // fileInfo->field_0x3c looks like some kind of user pointer?
     JKRDvdFile* dvdFile = *(JKRDvdFile**)((u8*)fileInfo + (offsetof(JKRDvdFile, mDvdFile) - offsetof(JKRDvdFile, mFileInfo)));
-    OSSendMessage(&dvdFile->mMessageQueue2, (OSMessage)id, OS_MESSAGE_NOBLOCK);
+    OSSendMessage(&dvdFile->mMessageQueue2, (OSMessage)(intptr_t)id, OS_MESSAGE_NOBLOCK);
 }
 
 s32 JKRDvdFile::getFileSize(void) const {
diff --git a/src/JSystem/JKernel/JKRHeap.cpp b/src/JSystem/JKernel/JKRHeap.cpp
index 0778122787..3364bfc492 100644
--- a/src/JSystem/JKernel/JKRHeap.cpp
+++ b/src/JSystem/JKernel/JKRHeap.cpp
@@ -386,7 +386,7 @@ JKRHeap* JKRHeap::findAllHeap(void* ptr) const {
     return NULL;
 }
 
-void JKRHeap::dispose_subroutine(u32 begin, u32 end) {
+void JKRHeap::dispose_subroutine(uintptr_t begin, uintptr_t end) {
     JSUListIterator<JKRDisposer> next_iterator((JSULink<JKRDisposer>*)NULL);
     JSUListIterator<JKRDisposer> it = mDisposerList.getFirst();
     while (it != mDisposerList.getEnd()) {
diff --git a/src/JSystem/JUtility/JUTVideo.cpp b/src/JSystem/JUtility/JUTVideo.cpp
index 823402eff4..77d9be31b1 100644
--- a/src/JSystem/JUtility/JUTVideo.cpp
+++ b/src/JSystem/JUtility/JUTVideo.cpp
@@ -178,7 +178,7 @@ void JUTVideo::postRetraceProc(u32 retrace_count) {
         sManager->mPostCallback(retrace_count);
     }
 
-    OSSendMessage(&sManager->mMessageQueue, (OSMessage)VIGetRetraceCount(), OS_MESSAGE_NOBLOCK);
+    OSSendMessage(&sManager->mMessageQueue, (OSMessage)(uintptr_t)VIGetRetraceCount(), OS_MESSAGE_NOBLOCK);
 }
 
 void JUTVideo::setRenderMode(GXRenderModeObj const* pObj) {
diff --git a/src/d/actor/d_a_movie_player.cpp b/src/d/actor/d_a_movie_player.cpp
index 37093569ef..0a548f74d5 100644
--- a/src/d/actor/d_a_movie_player.cpp
+++ b/src/d/actor/d_a_movie_player.cpp
@@ -3719,7 +3719,7 @@ BOOL daMP_WaitUntilPrepare() {
 }
 
 void daMP_PrepareReady(BOOL msg) {
-    OSSendMessage(&daMP_PrepareReadyQueue, (OSMessage)msg, 1);
+    OSSendMessage(&daMP_PrepareReadyQueue, (OSMessage)(uintptr_t)msg, 1);
 }
 
 static BOOL daMP_THPPlayerPrepare(s32 frame, s32 flag, s32 audioTrack) {
diff --git a/src/d/d_menu_fmap.cpp b/src/d/d_menu_fmap.cpp
index a9e88c8696..2cb5987613 100644
--- a/src/d/d_menu_fmap.cpp
+++ b/src/d/d_menu_fmap.cpp
@@ -2270,7 +2270,7 @@ bool dMenu_Fmap_c::readFieldMapData(void** o_data, char const* i_path, bool para
 }
 
 void dMenu_Fmap_c::decodeFieldMapData() {
-    int field_data = (intptr_t)mpFieldDat;
+    intptr_t field_data = (intptr_t)mpFieldDat;
     dMenu_Fmap_field_region_data_c* region_data
         = (dMenu_Fmap_field_region_data_c*)(field_data + mpFieldDat->mRegionDataOffset);
     dMenuMapCommon_c::Stage_c* stage_data
diff --git a/src/f_op/f_op_scene_mng.cpp b/src/f_op/f_op_scene_mng.cpp
index 7f40ccd845..5d516e8adf 100644
--- a/src/f_op/f_op_scene_mng.cpp
+++ b/src/f_op/f_op_scene_mng.cpp
@@ -29,14 +29,14 @@ fpc_ProcID fopScnM_DeleteReq(scene_class* i_scene) {
     return fopScnRq_Request(1, i_scene, 0x7FFF, NULL, 0x7FFF, 0) != fpcM_ERROR_PROCESS_ID_e;
 }
 
-int fopScnM_CreateReq(s16 i_procName, s16 param_2, u16 param_3, u32 i_data) {
+int fopScnM_CreateReq(s16 i_procName, s16 param_2, u16 param_3, uintptr_t i_data) {
     printf("[DIAG] fopScnM_CreateReq: procName=%d fade=%d\n", i_procName, param_2); fflush(stdout);
     fpc_ProcID result = fopScnRq_Request(0, 0, i_procName, (void*)i_data, param_2, param_3);
     printf("[DIAG] fopScnM_CreateReq: result=%d (error=%d)\n", result, fpcM_ERROR_PROCESS_ID_e); fflush(stdout);
     return result != fpcM_ERROR_PROCESS_ID_e;
 }
 
-u32 fopScnM_ReRequest(s16 i_procName, u32 i_data) {
+u32 fopScnM_ReRequest(s16 i_procName, uintptr_t i_data) {
     if (l_scnRqID == fpcM_ERROR_PROCESS_ID_e) {
         return 0;
     }
diff --git a/src/f_pc/f_pc_pause.cpp b/src/f_pc/f_pc_pause.cpp
index a3484d1c7c..60515726b0 100644
--- a/src/f_pc/f_pc_pause.cpp
+++ b/src/f_pc/f_pc_pause.cpp
@@ -6,6 +6,7 @@
 #include "f_pc/f_pc_pause.h"
 #include "f_pc/f_pc_node.h"
 #include "f_pc/f_pc_layer_iter.h"
+#include <cstdint>
 
 int fpcPause_IsEnable(void* i_proc, u8 i_flag) {
     if ((((base_process_class*)i_proc)->pause_flag & i_flag) == i_flag) {
@@ -20,7 +21,7 @@ int fpcPause_Enable(void* i_proc, u8 i_flag) {
 
     if (fpcBs_Is_JustOfType(g_fpcNd_type, ((base_process_class*)i_proc)->subtype)) {
         fpcLyIt_OnlyHere(&((process_node_class*)i_proc)->layer, (fpcLyIt_OnlyHereFunc)fpcPause_Enable,
-                         (void*)i_flag);
+                         (void*)(uintptr_t)i_flag);
     }
     return 1;
 }
@@ -30,7 +31,7 @@ int fpcPause_Disable(void* i_proc, u8 i_flag) {
     ((base_process_class*)i_proc)->pause_flag &= var_r31;
 
     if (fpcBs_Is_JustOfType(g_fpcNd_type, ((base_process_class*)i_proc)->subtype)) {
-        fpcLyIt_OnlyHere(&((process_node_class*)i_proc)->layer, (fpcLyIt_OnlyHereFunc)fpcPause_Disable, (void*)i_flag);
+        fpcLyIt_OnlyHere(&((process_node_class*)i_proc)->layer, (fpcLyIt_OnlyHereFunc)fpcPause_Disable, (void*)(uintptr_t)i_flag);
     }
 
     return 1;
diff --git a/src/m_Do/m_Do_Reset.cpp b/src/m_Do/m_Do_Reset.cpp
index fd478e51a1..e2a062d204 100644
--- a/src/m_Do/m_Do_Reset.cpp
+++ b/src/m_Do/m_Do_Reset.cpp
@@ -99,7 +99,7 @@ void mDoRst_reset(int reset, u32 resetCode, int forceMenu) {
 }
 
 void checkDiskCallback(s32 result, DVDCommandBlock* block) {
-    block->userData = (void*)result;
+    block->userData = (void*)(intptr_t)result;
 }
 
 void mDoRst_resetCallBack(int port, void*) {
diff --git a/src/m_Do/m_Do_machine.cpp b/src/m_Do/m_Do_machine.cpp
index 2811cff7b1..9fbf2ae305 100644
--- a/src/m_Do/m_Do_machine.cpp
+++ b/src/m_Do/m_Do_machine.cpp
@@ -586,7 +586,7 @@ static void fault_callback_scroll(u16, OSContext* p_context, u32, u32) {
     JUTException* manager = JUTException::getManager();
     JUTConsole* exConsole = manager->getConsole();
 
-    u32 srr0 = p_context->srr0 & -4;
+    uintptr_t srr0 = p_context->srr0 & -4;
     if (srr0 >= 0x8000000C && srr0 < 0x82FFFFFF) {
         exConsole->print_f("(SRR0-3):%08X %08X %08X %08X\n", *(u32*)(srr0 - 0xC),
                            *(u32*)(srr0 - 0x8), *(u32*)(srr0 - 0x4), *(u32*)srr0);