diff options
Diffstat (limited to 'src/core/hle/kernel/svc/svc_tick.cpp')
-rw-r--r-- | src/core/hle/kernel/svc/svc_tick.cpp | 35 |
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 |