Feds??? WTF!

You can run an (emulated) IBM mainframe on it!

Also null and void in Spain. Judicial recourse is an non-waiveable right.

It didn’t clear the return code. In mainframe jobs, successful executions are expected to return zero (in the machine R15 register).

So in this case fixing the bug required to add an instruction instead of removing one.

Just to boast my old timer credentials.

There is an utility program in IBM’s mainframe operating system, z/OS, that has been there since the 60s.

It has just one assembly code instruction: a BR 14, which means basically ‘return’.

The first version was bugged and IBM had to issue a PTF (patch) to fix it.

The underlining linear algebra routines are written in… FORTRAN.