From 0491a3f6af9e318b9e3774c34fe4923a67376829 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Sun, 6 Oct 2024 16:20:14 -0400
Subject: better tick interface

---
 src/timer.zig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/timer.zig')

diff --git a/src/timer.zig b/src/timer.zig
index b30cfcf..00fd6ba 100644
--- a/src/timer.zig
+++ b/src/timer.zig
@@ -33,10 +33,15 @@ const driver = struct {
         self.lld.initialize(freq);
     }
 
-    pub fn ticks(self: driver) u32 {
+    pub fn count(self: driver) u32 {
         _ = self;
         return @atomicLoad(u32, &ticks_raw, .acquire);
     }
+
+    pub fn delay(self: driver, ticks: u32) void {
+        const now = self.count();
+        while (self.count() - now < ticks) {}
+    }
 };
 
 pub const systick = driver { .lld = @ptrFromInt(0xE000E010) };
-- 
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