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RPN scientific calculator firmware for $13 calculator kit
10-22-2019, 05:08 AM
Post: #17
RE: RPN scientific calculator firmware for $13 calculator kit
(10-22-2019 05:01 AM)jklsadf Wrote:  Hi, that is indeed the behavior of the calculator, but I'm not sure that that's a wrong result (free 42s gives the same result, starting from a stack filled with all 0s). After "8 enter 3 *" stack lift is re-enabled. After swap, stack lift is still enabled, even though the display shows:
24
0
The zero in the x register isn't a result of CLx or some other stack-disabling operation, so when you hit 2, the stack "lifts" and you get:
0
2

You're quite right! I've been using RPN since the HP-45 and never noticed that! Wow, am I slow sometimes!

Tom L
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RE: RPN scientific calculator firmware for $13 calculator kit - toml_12953 - 10-22-2019 05:08 AM



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