Add Frame Pointer

Author: andre-richter

src/registers.rs

@@ -24,6 +24,7 @@ mod esr_el1;
 mod esr_el2;
 mod far_el1;
 mod far_el2;
+mod fp;
 mod hcr_el2;
 mod id_aa64mmfr0_el1;
 mod lr;
@@ -70,6 +71,7 @@ pub use esr_el1::ESR_EL1;
 pub use esr_el2::ESR_EL2;
 pub use far_el1::FAR_EL1;
 pub use far_el2::FAR_EL2;
+pub use fp::FP;
 pub use hcr_el2::HCR_EL2;
 pub use id_aa64mmfr0_el1::ID_AA64MMFR0_EL1;
 pub use lr::LR;

src/registers/fp.rs

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+//
+// Copyright (c) 2022 by the author(s)
+//
+// Author(s):
+//   - Andre Richter <[email protected]>
+
+//! The frame pointer register
+
+use tock_registers::interfaces::{Readable, Writeable};
+
+pub struct Reg;
+
+impl Readable for Reg {
+    type T = u64;
+    type R = ();
+
+    read_raw!(u64, "x29", "x");
+}
+
+impl Writeable for Reg {
+    type T = u64;
+    type R = ();
+
+    write_raw!(u64, "x29", "x");
+}
+
+pub const FP: Reg = Reg {};