From 6eaf7ab55f9ca6df9439d3e382d49faeb1dffe00 Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Fri, 22 Nov 2019 15:55:42 -0500
Subject: [PATCH] svc: GetSystemTick should return cntpct_el0, not core ticks.

---
 src/core/hle/kernel/svc.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 8c67ada435..04ca094823 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -1777,7 +1777,9 @@ static u64 GetSystemTick(Core::System& system) {
     LOG_TRACE(Kernel_SVC, "called");
 
     auto& core_timing = system.CoreTiming();
-    const u64 result{core_timing.GetTicks()};
+
+    // Returns the value of cntpct_el0 (https://switchbrew.org/wiki/SVC#svcGetSystemTick)
+    const u64 result{Core::Timing::CpuCyclesToClockCycles(system.CoreTiming().GetTicks())};
 
     // Advance time to defeat dumb games that busy-wait for the frame to end.
     core_timing.AddTicks(400);