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-rw-r--r--src/isa/mod.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/isa/mod.rs b/src/isa/mod.rs
index dd803c5..086df74 100644
--- a/src/isa/mod.rs
+++ b/src/isa/mod.rs
@@ -3,6 +3,8 @@ pub mod funct3;
pub mod funct7;
pub type Word = u32;
+pub type SignedWord = i32;
+pub type Address = usize;
#[derive(Debug, PartialEq)]
pub enum Register {