1 files changed, 68 insertions, 1 deletions

diff --git a/src/core/hle/kernel/svc/svc_light_ipc.cpp b/src/core/hle/kernel/svc/svc_light_ipc.cpp
index 299e22ae6..b76ce984c 100644
--- a/src/core/hle/kernel/svc/svc_light_ipc.cpp
+++ b/src/core/hle/kernel/svc/svc_light_ipc.cpp
@@ -1,6 +1,73 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "core/arm/arm_interface.h"
+#include "core/core.h"
 #include "core/hle/kernel/svc.h"
+#include "core/hle/kernel/svc_results.h"
 
-namespace Kernel::Svc {} // namespace Kernel::Svc
+namespace Kernel::Svc {
+
+Result SendSyncRequestLight(Core::System& system, Handle session_handle, u32* args) {
+    UNIMPLEMENTED();
+    R_THROW(ResultNotImplemented);
+}
+
+Result ReplyAndReceiveLight(Core::System& system, Handle session_handle, u32* args) {
+    UNIMPLEMENTED();
+    R_THROW(ResultNotImplemented);
+}
+
+Result SendSyncRequestLight64(Core::System& system, Handle session_handle, u32* args) {
+    R_RETURN(SendSyncRequestLight(system, session_handle, args));
+}
+
+Result ReplyAndReceiveLight64(Core::System& system, Handle session_handle, u32* args) {
+    R_RETURN(ReplyAndReceiveLight(system, session_handle, args));
+}
+
+Result SendSyncRequestLight64From32(Core::System& system, Handle session_handle, u32* args) {
+    R_RETURN(SendSyncRequestLight(system, session_handle, args));
+}
+
+Result ReplyAndReceiveLight64From32(Core::System& system, Handle session_handle, u32* args) {
+    R_RETURN(ReplyAndReceiveLight(system, session_handle, args));
+}
+
+// Custom ABI implementation for light IPC.
+
+template <typename F>
+static void SvcWrap_LightIpc(Core::System& system, F&& cb) {
+    auto& core = system.CurrentArmInterface();
+    std::array<u32, 7> arguments{};
+
+    Handle session_handle = static_cast<Handle>(core.GetReg(0));
+    for (int i = 0; i < 7; i++) {
+        arguments[i] = static_cast<u32>(core.GetReg(i + 1));
+    }
+
+    Result ret = cb(system, session_handle, arguments.data());
+
+    core.SetReg(0, ret.raw);
+    for (int i = 0; i < 7; i++) {
+        core.SetReg(i + 1, arguments[i]);
+    }
+}
+
+void SvcWrap_SendSyncRequestLight64(Core::System& system) {
+    SvcWrap_LightIpc(system, SendSyncRequestLight64);
+}
+
+void SvcWrap_ReplyAndReceiveLight64(Core::System& system) {
+    SvcWrap_LightIpc(system, ReplyAndReceiveLight64);
+}
+
+void SvcWrap_SendSyncRequestLight64From32(Core::System& system) {
+    SvcWrap_LightIpc(system, SendSyncRequestLight64From32);
+}
+
+void SvcWrap_ReplyAndReceiveLight64From32(Core::System& system) {
+    SvcWrap_LightIpc(system, ReplyAndReceiveLight64From32);
+}
+
+} // namespace Kernel::Svc