Originally Posted by
OldnGrounded
Yup. Just the ones we've heard about or heard hints about are sufficient to suggest that having had to go back to, effectively, main() (or Ada equivalent, or whatever) and the nonlocal inclusions has turned up a bunch of stuff that no one has really examined carefully for too long.
Everyone working on the problem must be terrified, every hour of every day.
I'm sure you know, but for the sake of those who may not, the Intel 80486 was introduced in 1989.
There is sometimes something to be said for legacy systems. They have probably gone through very extensive development/test/release cycles, with extensive use refining the code even further. So long as the operating system layer, along with associated substems, layered products and hardware are supported I see no problem. It happen s more than you know.
I know, to take one example, of an automated train line which runs using VMS. Not OpenVMS. VMS. Proper old school.