You (Chuck) and Dave are speaking specifically of so called 100% clones. That I fully
expect to be a given. That there exists the mechanism to default to a batch of code in a
rom address is news to me though, even in a hundred percenter. But since there is so much
compatibility amongst BASICS, as was mentioned recently, and given an empty socket
(curious to know which mobos had them, probably few if any) or a board that would extend
an existing socket, is it likely an IBM chip would work, even if you had to manually
transfer execution.