From 94cbacc9980bf760e1825ed9dd02e1676f27af35 Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Thu, 16 Feb 2023 17:53:25 +0200
Subject: [PATCH] Kernel: PIT now has very barebones sleep

---
 kernel/include/kernel/PIT.h | 2 +-
 kernel/kernel/PIT.cpp       | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/kernel/include/kernel/PIT.h b/kernel/include/kernel/PIT.h
index 8999099f..0befacd9 100644
--- a/kernel/include/kernel/PIT.h
+++ b/kernel/include/kernel/PIT.h
@@ -8,7 +8,7 @@ namespace PIT
 {
 
 	uint64_t ms_since_boot();
-
 	void initialize();
+	void sleep(uint64_t);
 
 }
\ No newline at end of file
diff --git a/kernel/kernel/PIT.cpp b/kernel/kernel/PIT.cpp
index cc16b7d4..cf20b9df 100644
--- a/kernel/kernel/PIT.cpp
+++ b/kernel/kernel/PIT.cpp
@@ -50,4 +50,11 @@ namespace PIT
 		InterruptController::get().enable_irq(PIT_IRQ);
 	}
 
+	void sleep(uint64_t ms)
+	{
+		uint64_t end = s_system_time + ms;
+		while (s_system_time < end)
+			asm volatile("hlt");
+	}
+
 }