8 files changed, 76 insertions, 4 deletions
diff --git a/README.md b/README.md
index 25ecc94..edee125 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ $\psi$ is a powerful quantum computing toolkit designed for simulating quantum c
     - **`libpsi-core:maths`**: A comprehensive mathematics library featuring 32/64-bit complex numbers, vectors (both row and column), matrices, and more.
     - **`libpsi-core:core`**: Contains all core quantum components, including quantum gates, classical/quantum bits, and quantum circuits.
 - **`libpsi-visualizer`**: An extension of `libpsi-core` that offers visual representations of quantum circuits. It supports both text-based (ASCII) output in the terminal and graphical output using APIs like OpenGL and Vulkan.
-- **`qasmc`**: An [OpenQASM](https://openqasm.com/) compiler that enables you to write quantum programs, which are then compiled into native executables for classical computers using an [LLVM](https://llvm.org/) backend.
+- **`libpsi-qasmc`**: An [OpenQASM](https://openqasm.com/) compiler that enables you to write quantum programs, which are then compiled into native executables for classical computers using an [LLVM](https://llvm.org/) backend.
 - **`psi`**: A C-like programming language that integrates quantum and classical computing, making it easier to build and simulate quantum systems alongside classical ones.
 - **`psi-gui`**: A graphical interface for designing quantum circuits, allowing you to create circuits visually rather than through code. It integrates `libpsi` and `psi`.
 
diff --git a/libpsi-core/src/core/circuit.rs b/libpsi-core/src/core/circuit.rs
index 65e359a..43f51d0 100644
--- a/libpsi-core/src/core/circuit.rs
+++ b/libpsi-core/src/core/circuit.rs
@@ -2,8 +2,8 @@ use super::{ClassicalRegister, QuantumBit, QuantumGate};
 
 #[allow(dead_code)]
 struct QuantumCircuitInstruction {
-    target_indices: Vec<i32>,
-    control_indices: Vec<i32>,
+    target_indices: Vec<usize>,
+    control_indices: Vec<usize>,
     gate: QuantumGate,
 }
 
@@ -22,4 +22,12 @@ impl QuantumCircuit {
             instructions: Vec::new(),
         }
     }
+
+    pub fn apply(&mut self, gate: &QuantumGate, control_bits: &[usize], target_bits: &[usize]) {
+        self.instructions.push(QuantumCircuitInstruction {
+            gate: gate.clone(),
+            target_indices: target_bits.to_vec(),
+            control_indices: control_bits.to_vec(),
+        });
+    }
 }
diff --git a/libpsi-core/src/core/mod.rs b/libpsi-core/src/core/mod.rs
index 2f42682..e8e2a4b 100644
--- a/libpsi-core/src/core/mod.rs
+++ b/libpsi-core/src/core/mod.rs
@@ -1,7 +1,9 @@
 pub mod circuit;
 pub mod component;
 pub mod gates;
+pub mod runtime;
 
 pub use circuit::*;
 pub use component::*;
 pub use gates::*;
+pub use runtime::*;
diff --git a/libpsi-core/src/core/runtime.rs b/libpsi-core/src/core/runtime.rs
new file mode 100644
index 0000000..f699d54
--- /dev/null
+++ b/libpsi-core/src/core/runtime.rs
@@ -0,0 +1,25 @@
+use super::{ClassicalRegister, QuantumBit, QuantumCircuit};
+
+#[allow(unused)]
+pub struct ExecutationData {
+    quantum_states: Vec<QuantumBit>,
+    classical_states: ClassicalRegister,
+}
+
+impl ExecutationData {
+    pub fn new(quantum_states: Vec<QuantumBit>, classical_states: ClassicalRegister) -> Self {
+        ExecutationData {
+            quantum_states,
+            classical_states,
+        }
+    }
+}
+
+pub trait RuntimeBase {
+    fn get_circuit(&self) -> &QuantumCircuit;
+}
+
+pub trait Runtime<T: RuntimeBase = Self> {
+    fn new(circuit: QuantumCircuit) -> Self;
+    fn execute(&self, repeat: usize) -> Vec<ExecutationData>;
+}
diff --git a/libpsi-core/src/lib.rs b/libpsi-core/src/lib.rs
index 45c2c3b..0be80cc 100644
--- a/libpsi-core/src/lib.rs
+++ b/libpsi-core/src/lib.rs
@@ -1,5 +1,6 @@
 pub mod core;
 pub mod maths;
+pub mod runtimes;
 
 pub use maths::complex::*;
 pub use maths::matrix::*;
@@ -9,3 +10,6 @@ pub use maths::vector::*;
 pub use core::circuit::*;
 pub use core::component::*;
 pub use core::gates;
+pub use core::runtime::*;
+
+pub use runtimes::*;
diff --git a/libpsi-core/src/runtimes/basic_rt.rs b/libpsi-core/src/runtimes/basic_rt.rs
new file mode 100644
index 0000000..78d6122
--- /dev/null
+++ b/libpsi-core/src/runtimes/basic_rt.rs
@@ -0,0 +1,26 @@
+use crate::{ClassicalRegister, ExecutationData, QuantumCircuit, Runtime, RuntimeBase};
+
+pub struct BasicRT {
+    circuit: QuantumCircuit,
+}
+
+impl RuntimeBase for BasicRT {
+    fn get_circuit(&self) -> &QuantumCircuit {
+        &self.circuit
+    }
+}
+
+impl Runtime for BasicRT {
+    fn new(circuit: QuantumCircuit) -> BasicRT {
+        BasicRT { circuit }
+    }
+
+    fn execute(&self, repeat: usize) -> Vec<ExecutationData> {
+        let mut result: Vec<ExecutationData> = Vec::with_capacity(repeat);
+        for _ in 0..repeat {
+            let executation_data = ExecutationData::new(Vec::new(), ClassicalRegister::new(1));
+            result.push(executation_data);
+        }
+        result
+    }
+}
diff --git a/libpsi-core/src/runtimes/mod.rs b/libpsi-core/src/runtimes/mod.rs
new file mode 100644
index 0000000..4c2030c
--- /dev/null
+++ b/libpsi-core/src/runtimes/mod.rs
@@ -0,0 +1,3 @@
+pub mod basic_rt;
+
+pub use basic_rt::*;
diff --git a/libpsi-tester/src/main.rs b/libpsi-tester/src/main.rs
index 3fd8de2..2de001b 100644
--- a/libpsi-tester/src/main.rs
+++ b/libpsi-tester/src/main.rs
@@ -1,5 +1,9 @@
 use libpsi_core::*;
 
 fn main() {
-    let _circuit = QuantumCircuit::new(2, 2);
+    let mut circuit = QuantumCircuit::new(2, 2);
+    circuit.apply(&gates::CNOT, &[0], &[1]);
+
+    let runtime = BasicRT::new(circuit);
+    runtime.execute(1024);
 }