Coding in Assembly was a gas! I wrote applications in IBM BAL in the 70's. G/L, Payroll, Inventory. We did it in part because we had so little memory (typically

Coding in Assembly was a gas! I wrote applications in IBM BAL in the 70's. G/L, Payroll, Inventory. We did it in part because we had so little memory (typically 64K to 131K), we had to squeeze every drop we could out of available memory. I worked on Univac 9400s. We received the O/S in source code form (Assembly) on tape. We ran it through a parametizer (PROC), compiled the resulting source, and that's what the customer ran with. You haven't lived until you've stepped through your code one instruction at a time, displaying op codes and raw binary data on the maintenance panel lights.