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+--- Thread: HP45 Behaviour (/thread-7371.html)
HP45 Behaviour - teenix - 12-05-2016 02:18 PM
Hi all,
I was playing around with the HP-45 emulator and came across this problem
Assume you have a value stored in Memory [1]
(Example: 50 STO 1).
If you do RCL 1, then 50 is placed into the C register and the stack is lifted by one and 50 is displayed as you would expect.
However, when the Enter key is pressed, then the Status register bit 7 is cleared when the code gets back to the main loop.
Now if you press RCL 1, the value is placed into the C register but the stack is not lifted.
Stack 5 Enter 1/x RCL 1
T 0 0 0 0
Z 0 0 0 5
Y 0 5 5 0.2
X 0 5 0.2 50
(Expected) (However)
Stack 5 Enter RCL 1 RCL 1
T 0 0 0 0
Z 0 0 5 0
Y 0 5 5 5
X 0 5 50 50
Anyone know if this happen on a real HP45
cheers
Tony
RE: HP45 Behaviour - teenix - 12-05-2016 03:08 PM
sorry
It's early in the morning, I figured it out
No need for the duplicated entry once the enter key is pressed when another variable is expected
Time for bed
Cheers
RE: HP45 Behaviour - Geoff Quickfall - 12-05-2016 05:49 PM
As they say in the legal profession: "asked and answered."
:-)