history of the 4-level stack
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09-11-2014, 02:39 AM
Post: #23
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RE: history of the 4-level stack
(09-10-2014 12:45 AM)Jeff_Kearns Wrote: I probably would have used postfix on store if we had more than 10 storage cells (0-9), but "STO N" seemed much more easily understood than "N STO". It would seem that in a four-level stack, prefix notation (STO 1) does have one extremely important advantage over postfix (1 STO): the former preserves all four stack values (since the register number is never placed on the stack), while the latter would destroy the value in the T register (since the stack would lift when the register number was keyed in). John |
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