HP vs TI Indirect Addressing.

[pauln]

(07-28-2022 09:56 PM)David Hayden Wrote:  Weren't instructions a fixed number of bits before the 41C?

That would be my guess too. As we know, an advantage of the HP-67 over the TI SR-52 was that instructions were fully merged.

Also, one indirect register was probably all you needed for most programs.

By the way, was the SR-52 the first programmable handheld with indirect addressing? I'm trying to get a mental picture of these early calculators. Another claim to fame for the TI SR-52 would be that it was the first that one could attach to a printer (?).