SR-52 and subroutine levels.

[Gene]

Remember that the SR-56 was introduced 9 months later, which may have given it some advantages over the SR-52 in some ways.

However, with limited memory capacity, everything is a trade-off. More memory registers or program steps? More built-in functions or pending operations or subroutine levels, etc. ?

Given that the SR-52's program steps were ** unmerged ** (GTO 123 took four steps, RCL 01 took three - that's 7 of the 224)... I'm not sure there were many programs written for the SR-52 that used up all three subroutine levels - would have to check the TI-PPC Notes if I had the desire to, but I really don't.

(rskey.org - go to the Library and you can download all the TI PPC Notes with tons of info).

The SR-56 had 100 steps and 10 data memories. Maybe that meant another subroutine level stored. Don't know.

The SR-56 had fewer than 64 op codes built in, making me wonder if it was a six-bit machine.