1 files changed, 43 insertions, 0 deletions
diff --git a/src/cpu/sync_cycle.rs b/src/cpu/sync_cycle.rs
new file mode 100644
index 0000000..b343c32
--- /dev/null
+++ b/src/cpu/sync_cycle.rs
@@ -0,0 +1,43 @@
+/*
+	Copyright 2021-2023 Gabriel Jensen.
+
+	This file is part of Luma.
+
+	Luma is free software: you can redistribute it
+	and/or modify it under the terms of the GNU
+	Affero General Public License as published by
+	the Free Software Foundation, either version 3
+	of the License, or (at your option) any later
+	version.
+
+	Luma is distributed in the hope that it will be
+	useful, but WITHOUT ANY WARRANTY; without even
+	the implied warranty of MERCHANTABILITY or
+	FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+	Affero General Public License for more details.
+
+	You should have received a copy of the GNU
+	Affero General Public License along with Luma.
+	If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::cpu::Cpu;
+
+use std::thread::sleep;
+use std::time::{Duration, Instant};
+
+impl Cpu {
+	pub fn sync_cycle(&self, cycle_start: Instant) {
+		// 16*1024*1024 Hz, 59.604644775 ns
+
+		const CYCLE_DURATION: f64 = 0.000000059604644775;
+		let cycle_duration        = Duration::from_secs_f64(CYCLE_DURATION);
+
+		let remaining = match cycle_duration.checked_sub(cycle_start.elapsed()) {
+			Some(value) => value,
+			None        => Duration::from_secs(0x0),
+		};
+
+		sleep(remaining);
+	}
+}