From e5bf002e951b62d917b34f39ede5185b2a6202e4 Mon Sep 17 00:00:00 2001
From: Jesse Hines <jesse.r.s.hines@gmail.com>
Date: Sat, 30 Nov 2024 20:24:50 -0500
Subject: [PATCH] Add isBreak method

---
 src/simulator/simulator.ts | 4 ++++
 tests/simulator.test.ts    | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/src/simulator/simulator.ts b/src/simulator/simulator.ts
index 4d1f59f..f353785 100644
--- a/src/simulator/simulator.ts
+++ b/src/simulator/simulator.ts
@@ -190,6 +190,10 @@ export class Simulator {
         return !!this.control.ecall.toNumber()
     }
 
+    isBreak(): boolean {
+        return this.control.ecall.toNumber() == 2
+    }
+
     /** Runs the simulator until the end of the code. */
     run() {
         while (!this.isDone()) this.tick()
diff --git a/tests/simulator.test.ts b/tests/simulator.test.ts
index 5d13011..c3344ad 100644
--- a/tests/simulator.test.ts
+++ b/tests/simulator.test.ts
@@ -401,6 +401,8 @@ describe("Syscalls", () => {
         `
         let sim = testCode(code)
         expect(sim.control.ecall.toNumber()).to.equal(0)
+        expect(sim.isSyscall()).to.equal(false)
+        expect(sim.isBreak()).to.equal(false)
     })
 
     it('ecall', () => {
@@ -410,6 +412,8 @@ describe("Syscalls", () => {
         `
         let sim = testCode(code)
         expect(sim.control.ecall.toNumber()).to.equal(1)
+        expect(sim.isSyscall()).to.equal(true)
+        expect(sim.isBreak()).to.equal(false)
     })
 
     it('ebreak', () => {
@@ -419,5 +423,7 @@ describe("Syscalls", () => {
         `
         let sim = testCode(code)
         expect(sim.control.ecall.toNumber()).to.equal(2)
+        expect(sim.isSyscall()).to.equal(true)
+        expect(sim.isBreak()).to.equal(true)
     })
 })