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- Xref: sparky comp.sys.handhelds:1909 alt.folklore.computers:12912
- Path: sparky!uunet!caen!hellgate.utah.edu!cc.usu.edu!ivie
- From: ivie@cc.usu.edu (CP/M lives!)
- Newsgroups: comp.sys.handhelds,alt.folklore.computers
- Subject: Re: An old Commodore calculator
- Message-ID: <1992Aug22.150930.58329@cc.usu.edu>
- Date: 22 Aug 92 15:09:30 MDT
- References: <1992Aug19.205435.11305@Princeton.EDU> <1992Aug22.053412.12764@uwm.edu>
- Organization: Utah State University
- Lines: 20
-
- In article <1992Aug22.053412.12764@uwm.edu>, anthony@csd4.csd.uwm.edu (Anthony J Stieber) writes:
- > I just turned on the larger of the two paperweights, and I notice that
- > digits are entered from the left to the rightmost position. This is
- > the opposite of all the other (four) stand alone calculators in the
- > house and I think, most other calculators. The latter machines scroll
- > the display right to left to make room for digits as they are entered.
- >
- > Why is this? I would think that not scrolling the display would be
- > easier on both the machine and the eyes. The decimal point does
- > wander even if the number of decimal places is the same.
-
- Scrolling the display to the left as digits come in is, in my experience,
- easier. You can just shift the buffer to the left and stuff the digit in the
- end instead of searching for or keeping track of the current insertion point;
- less work, less stuff to keep track of. Admittedly, I've always done this in
- situations where the data I was using fit in a register on the machine I
- was using, so shifting left was one instruction...
-
- Roger Ivie
- ivie@cc.usu.edu
-