HP12C x><y Key
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06-14-2024, 03:46 AM
Post: #1
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HP12C x><y Key
The x><y key on the HP12C calculator has the same function in white and in blue. In other words, the primary function of the key is to swap the x and y registers. If you press g shift key, you get the same function in blue. Why does this key have the same function twice?
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06-14-2024, 11:13 AM
Post: #2
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RE: HP12C x><y Key
They are not the same:
Unshifted: This swaps the X and Y registers g-shifted: This is a conditional test, used in programs. It does the test "If X is less than or equal to Y is true then continue with the next instruction; if not true, the skip the next instruction and continue with the following one". The labels simply look similar but if you look closely, you'll see the difference. --Bob Prosperi |
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06-14-2024, 11:58 AM
Post: #3
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RE: HP12C x><y Key
Thanks Bob, now I see that they are indeed different. I haven't got to the programming bit yet.
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06-15-2024, 01:21 AM
Post: #4
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RE: HP12C x><y Key
(06-14-2024 11:58 AM)Powa Wrote: Thanks Bob, now I see that they are indeed different. I haven't got to the programming bit yet. Actually, that's good news for you, the best stuff is still to come. You're in for lots of fun! --Bob Prosperi |
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06-17-2024, 04:38 AM
Post: #5
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RE: HP12C x><y Key
Will get there eventually! (I hope).
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