[savedata-improvements-2] added sceSaveDataCreateTransactionResource

src/SharpEmu.Libs/CommonDialog/MsgDialogExports.cs

@@ -1,27 +0,0 @@
-// Copyright (C) 2026 SharpEmu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-using SharpEmu.HLE;
-using System.Threading;
-
-namespace SharpEmu.Libs.CommonDialog;
-
-public static class MsgDialogExports
-{
-    private const int AlreadyInitialized = unchecked((int)0x80B80002);
-    private static int _initialized;
-
-    [SysAbiExport(
-        Nid = "lDqxaY1UbEo",
-        ExportName = "sceMsgDialogInitialize",
-        Target = Generation.Gen4 | Generation.Gen5,
-        LibraryName = "libSceMsgDialog")]
-    public static int MsgDialogInitialize(CpuContext ctx)
-    {
-        var result = Interlocked.Exchange(ref _initialized, 1) == 0
-            ? 0
-            : AlreadyInitialized;
-        ctx[CpuRegister.Rax] = unchecked((ulong)result);
-        return result;
-    }
-}

src/SharpEmu.Libs/SaveData/SaveDataExports.cs

@@ -244,6 +244,36 @@ public static class SaveDataExports
         }
     }
 
+    private static int _nextTransactionResource;
+    [SysAbiExport(
+        Nid = "gjRZNnw0JPE",
+        ExportName = "sceSaveDataCreateTransactionResource",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceSaveData")]
+    public static int SaveDataCreateTransactionResource(CpuContext ctx)
+    {
+        var userId = unchecked((int)ctx[CpuRegister.Rdi]);
+        var reserved = ctx[CpuRegister.Rsi];
+        var resourceAddress = ctx[CpuRegister.Rdx];
+
+        if (resourceAddress == 0)
+        {
+            return SetReturn(ctx, OrbisSaveDataErrorParameter);
+        }
+
+        var id = (uint)Interlocked.Increment(ref _nextTransactionResource);
+
+        if (!TryWriteUInt32(ctx, resourceAddress, id))
+        {
+            return SetReturn(ctx, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT);
+        }
+
+        TraceSaveData(
+            $"create_transaction_resource user={userId} reserved=0x{reserved:X} resource_addr=0x{resourceAddress:X} id={id}");
+
+        return SetReturn(ctx, 0);
+    }
+
     private static bool TryReadSearchCond(CpuContext ctx, ulong address, out SearchCond cond)
     {
         cond = default;