diff --git a/core/libs/prx/libSceSaveData.native/CMakeLists.txt b/core/libs/prx/libSceSaveData.native/CMakeLists.txt
index acc721a9ea..4b92482441 100644
--- a/core/libs/prx/libSceSaveData.native/CMakeLists.txt
+++ b/core/libs/prx/libSceSaveData.native/CMakeLists.txt
@@ -32,6 +32,16 @@ if(BUILD_TESTING)
             "PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceSaveData.native>")
     endif()
 
+    add_test_executable(guest_savedata_constant_calls_tests ${LIBS_INCLUDE_DIR}/tests/GuestSaveDataConstantCalls.cpp)
+    target_include_directories(guest_savedata_constant_calls_tests PRIVATE ${LIBS_INCLUDE_DIR})
+    target_link_libraries(guest_savedata_constant_calls_tests PRIVATE libSceSaveData.native libc)
+    add_test(NAME guest_savedata_constant_calls COMMAND guest_savedata_constant_calls_tests)
+    set_tests_properties(guest_savedata_constant_calls PROPERTIES TIMEOUT 20)
+    if(WIN32)
+        set_tests_properties(guest_savedata_constant_calls PROPERTIES ENVIRONMENT_MODIFICATION
+            "PATH=path_list_prepend:$<TARGET_FILE_DIR:libSceSaveData.native>")
+    endif()
+
     add_test_executable(guest_savedata_mount_status_tests ${LIBS_INCLUDE_DIR}/tests/GuestSaveDataMountStatus.cpp)
     target_include_directories(guest_savedata_mount_status_tests PRIVATE ${LIBS_INCLUDE_DIR})
     target_link_libraries(guest_savedata_mount_status_tests PRIVATE libSceSaveData.native libc)
diff --git a/core/libs/prx/libSceSaveData.native/Export.cpp b/core/libs/prx/libSceSaveData.native/Export.cpp
index 145349110d..9abe30ba5b 100644
--- a/core/libs/prx/libSceSaveData.native/Export.cpp
+++ b/core/libs/prx/libSceSaveData.native/Export.cpp
@@ -1704,7 +1704,6 @@ int APS5_VABI sceSaveDataCreateUploadData(void) {
 }
 
 int APS5_VABI sceSaveDataDebugGetThreadId(void) {
-    NotImplemented_nid_no_patch(__func__);
     return 0;
 }
 
@@ -1779,7 +1778,6 @@ int APS5_VABI sceSaveDataGetBoundPsnAccountCount(void) {
 }
 
 int APS5_VABI sceSaveDataGetClientThreadPriority(void) {
-    NotImplemented_nid_no_patch(__func__);
     return 0;
 }
 
@@ -1826,8 +1824,7 @@ int APS5_VABI sceSaveDataGetSaveDataRootUsbPath(void) {
 }
 
 int APS5_VABI sceSaveDataGetSavePoint(void) {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+    return 2;
 }
 
 int APS5_VABI sceSaveDataGetUpdatedDataCount(void) {
diff --git a/core/libs/tests/GuestSaveDataConstantCalls.cpp b/core/libs/tests/GuestSaveDataConstantCalls.cpp
new file mode 100644
index 0000000000..0ee0204ee0
--- /dev/null
+++ b/core/libs/tests/GuestSaveDataConstantCalls.cpp
@@ -0,0 +1,18 @@
+#include "SceTypes.hpp"
+#include "prx/libSceSaveData/include/Api.hpp"
+#include <cstdlib>
+
+namespace {
+
+void Require(bool value) { if (!value) std::abort(); }
+
+}
+
+int main() {
+    for (int call = 0; call < 3; ++call) {
+        Require(sceSaveDataGetSavePoint() == 2);
+        Require(sceSaveDataGetClientThreadPriority() == 0);
+        Require(sceSaveDataDebugGetThreadId() == 0);
+    }
+    return 0;
+}
diff --git a/docs/dev/debt/libSceSaveData.native.md b/docs/dev/debt/libSceSaveData.native.md
index f3ab87b7cc..5266580505 100644
--- a/docs/dev/debt/libSceSaveData.native.md
+++ b/docs/dev/debt/libSceSaveData.native.md
@@ -23,7 +23,8 @@
 - [sceSaveDataInitialize2](../../../core/libs/prx/libSceSaveData.native/Export.cpp) (libSceSaveData.native) - is `sceSaveDataInitialize3` with the same parameter, as `sceSaveDataInitialize` already is: [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/0614ce324be092791b758d79f93d9f1ca5b10a81/src/core/libraries/save_data/savedata.cpp#L1228-L1238) runs the same initialization for both, and [fpPS4](https://github.com/red-prig/fpPS4/blob/04cefd43e6fddd1ab033e7980cd356d14c964905/src/ps4_libscesavedata.pas#L291-L304) takes one pointer for all three. Not measured on a console
 - [sceSaveDataCheckIpmiIfSize, sceSaveDataDebug, sceSaveDataDebugCheckBackupData, sceSaveDataDebugCleanMount, sceSaveDataDebugCompiledSdkVersion, sceSaveDataDebugCreateSaveDataRoot, sceSaveDataDebugProspero, sceSaveDataDebugRemoveSaveDataRoot and sceSaveDataDebugTarget](../../../core/libs/prx/libSceSaveData.native/Export.cpp) (libSceSaveData.native) - names and NIDs are present in the [PS5 3.20 export inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceSaveData.native.c). The seven no-argument prototypes follow the PS4 stubs in [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/f68923fe807f657348e6719ce658bcbd0a2b1c72/src/core/libraries/save_data/savedata.cpp#L653-L725), not measured on a console; no credible prototypes were found for the other two. All declarations have no parameters solely to resolve known imports and make no ABI claim.
 - [sceSaveDataGetProgress](../../../core/libs/prx/libSceSaveData.native/Export.cpp) - throws through `NotImplemented_nid_no_patch`. Firmware 13.42's libSceSaveData.sprx (sha256 `1d214285f188f1c0821a611a08345833dd379cee547d5834e64228cde906a567`, export at 0x39af0), read from disassembly and not measured on a console, takes a `float*`. It returns 0x809F0001 without a library context and 0x809F0000 outside its ready state, then passes the pointer to an internal helper that first checks its own status and connection fields (untraced results) and then returns 0x809F8004 for a null pointer; past those checks it sends request 5 to the save-data service, and a successful reply supplies the stored float. The value comes from the service, not from the library's own backup copy, so taking it from `sceSaveDataBackup`, as shadPS4 does, would be a host model; what the service reports while no backup runs is unknown.
-- The following pending declarations have unverified signatures and behavior; they are parameterless import-resolution declarations and throw through `NotImplemented_nid_no_patch`: [`sceSaveDataBindPsnAccount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataBindPsnAccountForSystemBackup`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataChangeDatabase`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataChangeInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataLight`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckCloudData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataBroken`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataVersion`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataVersionLatest`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCreateUploadData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDebugGetThreadId`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteAllUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteBackupData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteCloudData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteProspero`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteTitle`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDirNameSearchInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDownload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAllSize`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAppLaunchedUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadConditions`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadRequestInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadSetting`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetBoundPsnAccountCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetClientThreadPriority`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetCloudQuotaInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetEventInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootDir`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootPath`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootUsbPath`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSavePoint`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetUpdatedDataCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataInitializeForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataIsDeletingUsbDb`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataIsMounted`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualDelete`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualDownload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualUpload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMount5`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMountInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMountSys`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRebuildDatabase`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRestoreBackupDataForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRestoreLoadSaveDataMemory`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetAutoUploadSetting`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetEventInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetSaveDataLibraryUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataShutdownStart`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSupportedFakeBrokenStatus`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSyncCloudList`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataUmountSys`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataUpload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp).
+- The following pending declarations have unverified signatures and behavior; they are parameterless import-resolution declarations and throw through `NotImplemented_nid_no_patch`: [`sceSaveDataBindPsnAccount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataBindPsnAccountForSystemBackup`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataChangeDatabase`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataChangeInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckBackupDataLight`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckCloudData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataBroken`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataVersion`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCheckSaveDataVersionLatest`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataCreateUploadData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteAllUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteBackupData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteCloudData`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteProspero`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteTitle`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDeleteUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDirNameSearchInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataDownload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAllSize`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAppLaunchedUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadConditions`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadRequestInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetAutoUploadSetting`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetBoundPsnAccountCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetCloudQuotaInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetEventInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootDir`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootPath`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetSaveDataRootUsbPath`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataGetUpdatedDataCount`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataInitializeForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataIsDeletingUsbDb`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataIsMounted`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualDelete`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualDownload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataManualUpload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMount5`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMountInternal`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataMountSys`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRebuildDatabase`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRestoreBackupDataForCdlg`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataRestoreLoadSaveDataMemory`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetAutoUploadSetting`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetEventInfo`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSetSaveDataLibraryUser`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataShutdownStart`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSupportedFakeBrokenStatus`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataSyncCloudList`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataUmountSys`](../../../core/libs/prx/libSceSaveData.native/Export.cpp), [`sceSaveDataUpload`](../../../core/libs/prx/libSceSaveData.native/Export.cpp).
+- [`sceSaveDataGetSavePoint`, `sceSaveDataGetClientThreadPriority` and `sceSaveDataDebugGetThreadId`](../../../core/libs/prx/libSceSaveData.native/Export.cpp) - what the values mean and which arguments callers pass are unknown. They follow firmware 13.42's libSceSaveData.sprx, read from its disassembly to the return and run natively on x86-64 (not a console): each reads no argument and no memory, and returns a constant: 2, 0 and 0
 
 ### Functional