public static int opInfo(int opcode) {
    return OPCODE_INFO[opcode];
  }
Gets the format and allowed cp types of the given opcode.

@param opcode {@code >= 0, <= 255;} the opcode
@return its format and allowed cp types
android/android_framework/dex-maker/src/main/java/com/android/dx/cf/code/ByteOps.java