Allow 64-bit Mcause::from_bits on rv64

jsgf · jsgf · commit effb2dbef46b · 2025-07-24T14:30:16.000-07:00
Fixes #333
diff --git a/riscv/src/register/mcause.rs b/riscv/src/register/mcause.rs
@@ -2,12 +2,20 @@
 
 pub use crate::interrupt::Trap;
 
+#[cfg(target_arch = "riscv32")]
 read_only_csr! {
     /// `mcause` register
     Mcause: 0x342,
     mask: 0xffff_ffff,
 }
 
+#[cfg(target_arch = "riscv64")]
+read_only_csr! {
+    /// `mcause` register
+    Mcause: 0x342,
+    mask: 0xffff_ffff_ffff_ffff,
+}
+
 #[cfg(target_arch = "riscv32")]
 read_only_csr_field! {
     Mcause,
