2021 - Day 24

2021/24/old/helper.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func parseRegister(r string) int {
+	switch r {
+	case "w":
+		return 0
+	case "x":
+		return 1
+	case "y":
+		return 2
+	case "z":
+		return 3
+	default:
+		panic("Unknown register")
+	}
+}
+
+func registerToString(r int) string {
+	switch r {
+	case 0:
+		return "w"
+	case 1:
+		return "x"
+	case 2:
+		return "y"
+	case 3:
+		return "z"
+	default:
+		return fmt.Sprintf("%d", r)
+	}
+}
+
+func isNumber(s string) bool {
+	_, err := strconv.Atoi(s)
+
+	return err == nil
+}
+