S:5/0 Status Bit

At the end of the program, just before the END rung…what purpose would there be by putting a unlatch Status bit Overflow Trap S:5/0. I saw this on a program that I was troubleshooting the other day. I know that it has something to do with 32 bit math instructions.

Thanks

rmonroe

Error trap!

Keeps the processor from haulting on a major error. However, you have to do more than just trap that error, you have to deal with the overflow and what caused it. Your program needs to have the features necessary to make the problem go away or prevent it, not just reset it.

Search for "S:5/0" and you will get lots of hits.

THIS ONE seems to be the lenghtiest one.