How have the courts treated flow charts used in the preparation of computer programs at trial?

We fully agree that the defendants were entitled to know what operations the computer had been instructed to perform and to have the precise instruction that had been given. It is quite incomprehensible that the prosecution should tender a witness to state the results of a computer's operations without having the program available for defense scrutiny and use on cross-examination if desired. We place the Government on the clearest possible notice of its obligation to do this and also of the great desirability of making the program and other materials needed for cross-examination of computer witnesses, such as flow-charts used in the preparation of programs, available to the defense a reasonable time before trial. See United States v. Kelly, 420 F.2d 26 (2 Cir. 1969). However, we do not believe the interests of justice require reversal of these convictions because of what occurred here.