context: add run context

Author: tcoratger

crates/leanVm/src/context/mod.rs

@@ -0,0 +1 @@
+pub mod run_context;

crates/leanVm/src/context/run_context.rs

@@ -0,0 +1,28 @@
+use crate::memory::address::MemoryAddress;
+
+#[derive(Debug)]
+pub struct RunContext {
+    /// The address in memory of the current instruction to be executed.
+    pub(crate) pc: MemoryAddress,
+    /// Points to the beginning of the stack frame of the current function.
+    ///
+    /// The value of `fp` stays the same fopr all the instructions in the same invocation of a function.
+    pub(crate) fp: MemoryAddress,
+}
+
+impl RunContext {
+    #[must_use]
+    pub const fn new(pc: MemoryAddress, fp: MemoryAddress) -> Self {
+        Self { pc, fp }
+    }
+
+    #[must_use]
+    pub const fn pc(&self) -> &MemoryAddress {
+        &self.pc
+    }
+
+    #[must_use]
+    pub const fn fp(&self) -> &MemoryAddress {
+        &self.fp
+    }
+}

crates/leanVm/src/lib.rs

@@ -1 +1,2 @@
+pub mod context;
 pub mod memory;