[IronJack]

Yep. We used to have to make sure we aligned instructions and storage on fullword boundaries. And used register-to-register instructions whenever possible to save cycles. And never let a CSECT get beyond a 4k page frame.

Talk about code that blazed!

[ken in texas]

And never let a CSECT get beyond a 4k page frame.

Good old ALC... those were the days. Many times coding a change might take only 30 minutes, but the program was now large enough to need another base register. Since all the other registers were already in use you spent three more days slimming down all the old code.