From a8cc2b7e22dab9bcf2418013eec53ad1ac88a6ce Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Fri, 29 Jul 2022 18:07:31 -0600
Subject: [PATCH] Add aarch64 EnvRegisters

---
 src/arch/aarch64.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/arch/aarch64.rs b/src/arch/aarch64.rs
index 63c64cf..1b2db5b 100644
--- a/src/arch/aarch64.rs
+++ b/src/arch/aarch64.rs
@@ -132,3 +132,25 @@ impl DerefMut for FloatRegisters {
         }
     }
 }
+
+#[derive(Clone, Copy, Debug, Default)]
+#[repr(packed)]
+pub struct EnvRegisters {
+    // TODO: do we need any of these?
+}
+impl Deref for EnvRegisters {
+    type Target = [u8];
+    fn deref(&self) -> &[u8] {
+        unsafe {
+            slice::from_raw_parts(self as *const EnvRegisters as *const u8, mem::size_of::<EnvRegisters>())
+        }
+    }
+}
+
+impl DerefMut for EnvRegisters {
+    fn deref_mut(&mut self) -> &mut [u8] {
+        unsafe {
+            slice::from_raw_parts_mut(self as *mut EnvRegisters as *mut u8, mem::size_of::<EnvRegisters>())
+        }
+    }
+}
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