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(RPL) percentage function % not preserving stack level 2
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(RPL) percentage function % not preserving stack level 2
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(RPL) percentage function % not preserving stack level 2
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01-05-2019, 12:53 AM
(This post was last modified: 01-05-2019 12:55 AM by Joe Horn.)
Post: #2
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RE: (RPL) percentage function % not preserving stack level 2
IMHO, Y was preserved in the 4-level RPN machines (after performing the % function) due to the very limited size of the stack. Since RPL machines have no such limitation, and since LASTARG returns both X and Y, there is no need for the function to preserve Y on the stack; the user is free to make as many copies as needed of any stack levels.
What is X plus Y%? RPN: X ENTER Y % + RPL: X DUP Y % + <0|ΙΈ|0> -Joe- |
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