Comment by prosaic-hacker

I am from a earlier generation. Owned a TI SR-51A last year of High school, Then a HP-29c first year of University. I vaguely remember the SR-51A had an limited equation programming : multiply by a constant and add a constant. I remember writing sort routines for the 29c using its indirect register access to treat a block of registers as an array. Bench-marked various sorts. I think minutes to sort 20 items.