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-rw-r--r--src/core/hle/kernel/svc/svc_tick.cpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/core/hle/kernel/svc/svc_tick.cpp b/src/core/hle/kernel/svc/svc_tick.cpp
new file mode 100644
index 000000000..561336482
--- /dev/null
+++ b/src/core/hle/kernel/svc/svc_tick.cpp
@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/svc.h"
+
+namespace Kernel::Svc {
+
+/// This returns the total CPU ticks elapsed since the CPU was powered-on
+int64_t GetSystemTick(Core::System& system) {
+ LOG_TRACE(Kernel_SVC, "called");
+
+ auto& core_timing = system.CoreTiming();
+
+ // Returns the value of cntpct_el0 (https://switchbrew.org/wiki/SVC#svcGetSystemTick)
+ const u64 result{core_timing.GetClockTicks()};
+
+ if (!system.Kernel().IsMulticore()) {
+ core_timing.AddTicks(400U);
+ }
+
+ return static_cast<int64_t>(result);
+}
+
+int64_t GetSystemTick64(Core::System& system) {
+ return GetSystemTick(system);
+}
+
+int64_t GetSystemTick64From32(Core::System& system) {
+ return GetSystemTick(system);
+}
+
+} // namespace Kernel::Svc