This page (revision-50) was last changed on 03-Feb-2023 15:25 by Roland B. Wassenberg 

This page was created on 04-Oct-2012 10:01 by Carsten Strotmann

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Version Date Modified Size Author Changes ... Change note
50 03-Feb-2023 15:25 8 KB Roland B. Wassenberg to previous
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48 03-Jul-2017 11:25 8 KB Florian Dingler to previous | to last
47 27-Jun-2017 16:00 8 KB Roland B. Wassenberg to previous | to last
46 10-Dec-2016 19:03 8 KB Roland B. Wassenberg to previous | to last
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41 01-Sep-2016 09:07 6 KB Roland B. Wassenberg to previous | to last

Page References

Incoming links Outgoing links
Atari Calculator
Atari Calculator

Version management

Difference between version and

At line 2 changed 2 lines
the Atari Calculator is an advanced non-programmable as well as programmable calculator that supports RPN, ALG and ALGN calculation modes. Calculator goes far beyond the limits of Atari Basic’s mathematical capabilities, precision and has no bugs.
[{TableOfContents }]
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The Atari Calculator is an advanced non-programmable as well as programmable calculator that supports RPN, ALG and ALGN calculation modes. Calculator goes far beyond the limits of Atari Basic’s mathematical capabilities, precision and has no bugs.
At line 27 changed one line
In the content pages (page vii to xii in the manual or page 5 to 10 in the PDF-file) it is possible through a click on the line to directly jump to the desired page. The same is true for the index (page 187 to 190 in the manual or page 197 to 200 in the PDF-file).
[{Image src='Calculator_selling.jpg' width=334 height=852 }]
Atari Calculator description 1\\
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[{Image src='Atari Calculator description.jpg' width=485 height=705 }]
Atari Calculator description 2\\
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Please do not use MEM.SAV with DOS. Instead use the SAVEM as well as the LOADM command of Calculator to store and load the user memory to other programs and/or devices.
!! Source Codes
* [Atari Calculator source code|Colleen_Calculator_source_code.txt] ; size: 295 KB ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))\\
* [Atari OS A Colleen Floating Point Routines|Colleen_Floating_Point_Routines.txt] ; size: 45 KB ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))\\
!! ROM-Image
* [Atari_Calculator.rom] ; Thank you so much Peter Dell for creating the ROM file. That was really a big one! :-)))
!! ATR-Images
Atari Calculator disk image: [Atari Calculator/Calculator.atr]\\
Atari Calculator disk image with CX85 driver: [Atari Calculator/Calculator-CX85.atr]\\
Atari Calculator disk images with colored versions: [Atari Calculator/Color.zip]\\
Atari Calculator disk image for the Commodore 64: [http://web.utanet.at/nkehrer/atari_calc.html]\\
Incredible porting from Dr. N. Kehrer, creator of the Atari Asteroids Emulator. Highly recommended!\\
!! Manuals
In the content pages (page vii to xii in the manual or page 5 to 10 in the PDF-file) it is possible through a click on the line to directly jump to the desired page. The same is true for the index (page 187 to 190 in the manual or page 197 to 200 in the PDF-file). With the back button in Adobe Reader a direct jump from the desired page back to the content or index page is possible.
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Screen optimized manual (22 MB): [Atari Calculator/Atari_Calculator_Manual_Optimized.pdf]\\
At line 29 changed 2 lines
Disk Image: [Atari Calculator/Calculator.atr] \\
Handbook: [Atari Calculator/Atari_Calculator_Manual_Optimized.pdf] [original Handbook scan (117 MB)|http://strotmann.de/~cas/download/atari/Atari_Calculator_Manual_Original.pdf.gz] \\
Printer optimized manual (117 MB): [http://strotmann.de/~cas/download/atari/Atari_Calculator_Manual_Original.pdf.gz]\\
At line 53 added one line
Atari Calculator Cartridge Specifications from Carol Shaw from March 1979 (1.2 MB): [Atari_Calculator_Cartridge_Specifications.pdf]\\
At line 33 changed one line
[{Image src='Atari_Calculator_Manual_Optimized.png' }]
Atari Calculator Cheat Sheet [Atari_Calculator-Cheat_Sheet.pdf] from [inverseatascii|https://inverseatascii.info/]
At line 35 changed 2 lines
Author: Carol Shaw, creator of River Raid, 3D Tic-Tac-Toe and many other programs.
Under support from Roland B. Wassenberg
Atari Calculator on the 14th Vintage Computer Festival Europe: [AtariCalculator-VCFe14]\\
!! References
* [Atari Calculator source code|https://archive.org/details/ColleenCalculator] ; Thank you so much Harry & Kay for your help in getting the code. We really appreciate your help, please go ahead! :-)))\\
* [Atari 400-800 Operating System Source Listing of the floating point routines|https://archive.org/details/ColleenFloatingPointRoutines] ; Thank you so much Harry & Kay for your help in getting the code. We really appreciate your help, please go ahead! :-)))\\
* [WUDSN-site for Atari Calculator|http://www.wudsn.com/index.php/productions-atari800/tools] ; Highly recommended, not only for Calculator! Thank you so much Peter Dell!\\
* [AtariAge site on Calculator and Colleen Floating Point source codes|http://atariage.com/forums/topic/256541-colleen-floating-point-routines-and-colleen-calculator-source-code/] ; Thank you so much Atari_Ace from AtariAge for your help in creating the code. We really appreciate your help, please go ahead! :-)))
!! Images
[{Image src='Atari_Calculator2_.jpg' width=400 height=520 }]
Boxcover from the Atari Calculator
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[{Image src='calculator_cart.jpg' width=409 height=394 }]
Atari Calculator cartridge: The Atari Calculator was originally scheduled as a cartridge. Because Atari did not manage it to sell this in 1979 and on top needed 2 more years to publish it on diskette in 1981, we decided to honor the author of Calculator, Carol Shaw, with the creation of a cartridge label, which matches best the design of those times. The next free CXL-number was assigned so, but you as the reader know, it should have been a CXL-number with a double zero "00" ;-). The creation of the label, its accuracy, its colors etc. would not have been possible without [Oliver Rapp|http://des-or-mad.net]. Oliver, we all thank you so much! Please go ahead with your outstanding work in graphics and design.
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[{Image src='Atari_Calculator3.jpg' width=384 height=240 }]
Calculator after starting with $CA in $02C5 and $34 in $02C6
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[{Image src='Atari_Calculator4.jpg' width=384 height=240 }]
Calculator after a little calculation
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[{Image src='Modi.jpg' width=605 height=240 }]
The different modes of Calculator
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[{Image src='Programmmodus3.jpg' width=384 height=240 }]
Calculator in programming mode
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[{Image src='Programmmodus4.jpg' width=384 height=240 }]
Calculator after return from programming mode
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[{Image src='Color.jpg' width=384 height=240 }]
Calculator with $00 in $02C5 and $0F in $02C6
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[{Image src='Color2_.jpg' width=384 height=240 }]
Calculator with $0F in $02C5 and $00 in $02C6
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[{Image src='Atari_Blue.jpg' width=384 height=240 }]
"Atari Blue"-Calculator with $94 in $02C6
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[{Image src='Dark_Blue.jpg' width=384 height=240 }]
Calculator with $90 in $02C6
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[{Image src='Green.jpg' width=384 height=240 }]
Calculator with $C3 in $02C6
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[{Image src='Pink.jpg' width=384 height=240 }]
Calculator with $46 in $02C6
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[{Image src='Yellow.jpg' width=384 height=240 }]
Calculator with $FF in $02C6
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[{Image src='Genauigkeit1.jpg' width=432 height=240 }]
Precision of Calculator against Atari Basic
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[{Image src='Genauigkeit2.jpg' width=744 height=240 }]
Precision of Calculator against different Basic versions
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[{Image src='C64.jpg' width=446 height=279 }]
Precision of Commodore 64 Basic V2
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[{Image src='Genauigkeit_Calculator.jpg' width=327 height=198}] [{Image src='Genauigkeit_Visicalc.jpg' width=328 height=109 }] [{Image src='Genauigkeit_Speedcalc.jpg' width=329 height=111 }]
Precision of Calculator (1979) in comparison with Visicalc (1980) and SpeedCalc (1986)
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[{Image src='SumCal.jpg' width=440 height=267}] [{Image src='SumExcel2011.jpg' width=412 height=373 }]
Precision of Calculator (1979) in comparison with MS Excel PC (2010) Mac (2011) (German edition) ; In late 2015 Microsoft finally fixed the problem. Thank you Microsoft. :-)
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[{Image src='Programm2.jpg' width=390 height=240 }]
Calculator program example no. 2
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[{Image src='Anzahl_Befehle.jpg' width=535 height=240 }]
Number of commands: Atari Basic (Rev. A) vs. Atari Calculator
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[{Image src='Calculator_original_source_code_listing.jpg' width=800 height=534 }]
Calculator original source code listing (1979)
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[{Image src='Floating_Point_Routines_original.jpg' width=800 height=534 }]
Colleen original Floating Point Routines listing (1979)
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[{Image src='Carol.jpg' width=336 height=224 }]
Image of Carol Shaw when starting the cartridge
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[Author: Carol Shaw, creator of River Raid, 3D Tic-Tac-Toe and many other programs.|thanks#Carol Shaw]
This page (revision-50) was last changed on 03-Feb-2023 15:25 by Roland B. Wassenberg  Top