Comment by aap_
8 years ago
Why don't you read the linked text to learn that you're wrong? There is no address register and no decrement register on the IBM 704, and no instructions CAR and CDR either. An instruction had an address part and a decrement part. The LISP functions CAR and CDR return the the address part and decrement part of a given register and both were implemented with more than one machine instruction.
So why did I remember it the that way?
It must be part of history somehow, I didn't make it up.
I stand corrrected. Thanks.