From 16ec45b97c07a1ebc3ef2a33345bf15ddeca4c81 Mon Sep 17 00:00:00 2001
From: Berkus Decker <berkus+github@metta.systems>
Date: Fri, 17 Dec 2021 23:18:51 +0200
Subject: [PATCH] =?UTF-8?q?feat:=20=E2=9C=A8=20Add=20loop=5Fwhile()=20fn?=
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---
 machine/src/arch/aarch64/mod.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/machine/src/arch/aarch64/mod.rs b/machine/src/arch/aarch64/mod.rs
index c0fb793..b4b5928 100644
--- a/machine/src/arch/aarch64/mod.rs
+++ b/machine/src/arch/aarch64/mod.rs
@@ -39,3 +39,14 @@ pub fn loop_until<F: Fn() -> bool>(f: F) {
         asm::nop();
     }
 }
+
+/// Loop while a passed function returns `true`.
+#[inline]
+pub fn loop_while<F: Fn() -> bool>(f: F) {
+    loop {
+        if !f() {
+            break;
+        }
+        asm::nop();
+    }
+}