Like vending machine popcorn. Coders pop it in the microwave oven. They can tell what job is running just by listening to the rate the corn is popping. Know every nuance of every instruction and use them all in every real program. Puppy architects won't allow execute instructions to address another execute as the target instruction.
Real programmers despise such petty restrictions.
Don't bring brown bag lunches to work. If the vending machine sells it, they eat it. If the vending machine doesn't sell it, they don't eat it. Vending machines don't sell quiche.