A dozen changes; new HLEs, AV fixes, ELF loader fixes, new return codes, etc.

2026-07-16 07:56:12 +08:00 · 2026-03-14 20:38:25 +03:00
parent 028494a83b
commit 1f71c970d9
21 changed files with 2291 additions and 216 deletions
@@ -0,0 +1,119 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+using System.Buffers.Binary;
+
+namespace SharpEmu.Libs.Rtc;
+
+public static class RtcExports
+{
+    [SysAbiExport(
+        Nid = "ZPD1YOKI+Kw",
+        ExportName = "sceRtcGetCurrentClockLocalTime",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceRtc")]
+    public static int RtcGetCurrentClockLocalTime(CpuContext ctx)
+    {
+        var timeAddress = ctx[CpuRegister.Rdi];
+        if (timeAddress == 0)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        var now = DateTimeOffset.Now;
+        Span<byte> rtcDateTime = stackalloc byte[16];
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[0..2], checked((ushort)now.Year));
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[2..4], checked((ushort)now.Month));
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[4..6], checked((ushort)now.Day));
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[6..8], checked((ushort)now.Hour));
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[8..10], checked((ushort)now.Minute));
+        BinaryPrimitives.WriteUInt16LittleEndian(rtcDateTime[10..12], checked((ushort)now.Second));
+        BinaryPrimitives.WriteUInt32LittleEndian(
+            rtcDateTime[12..16],
+            checked((uint)((now.Ticks % TimeSpan.TicksPerSecond) / 10)));
+
+        if (!ctx.Memory.TryWrite(timeAddress, rtcDateTime))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
+    [SysAbiExport(
+        Nid = "8w-H19ip48I",
+        ExportName = "sceRtcGetTick",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "libSceRtc")]
+    public static int RtcGetTick(CpuContext ctx)
+    {
+        var dateTimeAddress = ctx[CpuRegister.Rdi];
+        var tickAddress = ctx[CpuRegister.Rsi];
+        if (dateTimeAddress == 0 || tickAddress == 0)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        if (!TryReadRtcDateTime(ctx, dateTimeAddress, out var rtcDateTime))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        ulong tickValue;
+        try
+        {
+            var baseDateTime = new DateTime(
+                rtcDateTime.Year,
+                rtcDateTime.Month,
+                rtcDateTime.Day,
+                rtcDateTime.Hour,
+                rtcDateTime.Minute,
+                rtcDateTime.Second,
+                DateTimeKind.Utc);
+            tickValue = checked((ulong)((baseDateTime.Ticks / 10) + rtcDateTime.Microsecond));
+        }
+        catch (ArgumentOutOfRangeException)
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        if (!ctx.TryWriteUInt64(tickAddress, tickValue))
+        {
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
+    private static bool TryReadRtcDateTime(CpuContext ctx, ulong address, out RtcDateTime rtcDateTime)
+    {
+        Span<byte> buffer = stackalloc byte[16];
+        if (!ctx.Memory.TryRead(address, buffer))
+        {
+            rtcDateTime = default;
+            return false;
+        }
+
+        rtcDateTime = new RtcDateTime(
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[0..2]),
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[2..4]),
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[4..6]),
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[6..8]),
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[8..10]),
+            BinaryPrimitives.ReadUInt16LittleEndian(buffer[10..12]),
+            BinaryPrimitives.ReadUInt32LittleEndian(buffer[12..16]));
+        return true;
+    }
+
+    private readonly record struct RtcDateTime(
+        ushort Year,
+        ushort Month,
+        ushort Day,
+        ushort Hour,
+        ushort Minute,
+        ushort Second,
+        uint Microsecond);
+}