Finish the extraction that I was supposed to do in dbad7a.

Previous commit left the pc variable being used in Run method. This commit fixes that so that I have a commit to point to for blog.
michaelgwelch · Mar 22, 2012 · 8f6ee036182c9584d639f58456476aefb62b8701 · 8f6ee03
1 parent dbad7a8
commit 8f6ee036182c9584d639f58456476aefb62b8701
Unified Split

Showing with 10 additions and 9 deletions.

+10 −9 csharp/BrainmessShort/Main.cs
diff --git a/csharp/BrainmessShort/Main.cs b/csharp/BrainmessShort/Main.cs
@@ -23,25 +23,26 @@ public static void Main(string[] args)

        char Fetch()
        {
-            return program[pc];
+            var instruction = program[pc];
+            pc++;
+            return instruction;
        }

-        int JumpForward()
+        void JumpForward()
        {
-            return program.FindMatch(pc - 1) + 1;
+            pc = program.FindMatch(pc - 1) + 1;
        }

-        int JumpBackward()
+        void JumpBackward()
        {
-            return program.FindMatch(pc - 1);
+            pc = program.FindMatch(pc - 1);
        }
        
        public void Run() 
        {
            while(pc < program.Length)
            {
-                char instruction = Fetch ();
-                pc++;
+                char instruction = Fetch();
                switch(instruction)
                {
                case '>': 
@@ -65,13 +66,13 @@ public void Run()
                case '[':
                    if (tape[tc] == 0)
                    {
-                        pc = JumpForward ();
+                        JumpForward();
                    }
                        break;
                case ']':
                    if (tape[tc] != 0)
                    {
-                        pc = JumpBackward ();
+                        JumpBackward();
                    }
                    break;
                }