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https://github.com/mobluse/aritmjs

Aritm in BASIC (ZX/C64/Tiny/GW/MM), PHP, & JavaScript (JS24) is a mental calculation training game
https://github.com/mobluse/aritmjs

appleii aritm basic basic-80 basicode c64 commander-x16 commanderx16 commodore64 foss game gw-basic javascript jsbasic maker-pi-pico mbasic mental-calculation mmbasic php vic20

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Aritm in BASIC (ZX/C64/Tiny/GW/MM), PHP, & JavaScript (JS24) is a mental calculation training game

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README 

        
# aritmjs

Aritm for various programming languages, e.g. dialects of BASIC, PHP, and JavaScript, is FOSS.



Run online in browser:

* http://bc3c.orbin.se (Works well in Chrome on Android and iPhone.)

* https://calormen.com/jsbasic/ (Works well in Chrome on iPhone.)

* https://www.commanderx16.com/webemu/x16emu.html?manifest=/forum/download/file.php?id=1518



See demos on YouTube:

* Transam Triton: https://youtu.be/DEfL17FnStc

* C64/THEC64 MINI: https://youtu.be/65AOkL8Yz6E

* Feature Phones (with Java ME/J2ME): https://youtu.be/hnBfS8jpjZU



Aritm exists for many plattforms e.g. graphing calculators (TI and Casio), spreadsheets, feature phones with Java, etc., see http://aritm.orbin.se. Aritm was first developed in C in 1992, and then in Java, TI-BASIC 83, and TinyBASIC. The versions for other BASIC dialects were developed from the Tiny BASIC version or its descendants. 



The original purpose of this repository was to develop a version for JavaScript that works like the BASIC versions for retro computers, but since

JavaScript doesn't have `goto` that has been difficult to write so far.



Convert BASIC to JavaScript:

* https://paulsperambulations.wordpress.com/2017/03/04/converting-basic-to-javascript/

* https://www.codeproject.com/Articles/25069/JSBasic-A-BASIC-to-JavaScript-Compiler



How to produce the C64 d64 diskette image in Windows 10 using WinVICE/VICE 2.4 - 3.5:



    petcat -w2 -o aritm.prg -- aritm-c64.bas

    c1541 -format aritm03_m6,00 d64 aritm03.d64 -write aritm.prg aritm



How to produce the VIC20 d64 diskette image in Windows 10:



    petcat -l 1201 -w2 -o aritm-vic20.prg -- aritm-vic20.bas

    c1541 -format aritm03_mvb1,00 d64 aritm03-vic20.d64 -write aritm-vic20.prg aritm-vic20

    

How to make the VIC-20 bas-file from prg-file in Windows 10:



    c1541 -attach aritm03-vic20.d64 -extract

    move aritm-vic20 aritm-vic20.prg

    petcat -nh -2 -- aritm-vic20.prg | wsl sed 's/^ *//' | wsl mac2unix | wsl unix2dos > aritm-vic20.bas



Essential VIC-20 info:

* http://www.sleepingelephant.com/ipw-web/bulletin/bb/viewtopic.php?p=66937#p66937

* https://www.pagetable.com/?p=273



How to produce the p-file for ZX81 in Linux:



    zxtext2p -o aritm-zx81.p aritm-zx81.bas

    xz81 aritm-zx81.p



In xz81 ZX81 emulator: `RUN 4800`  

That creates a new aritm-zx81.p that auto-starts.



Convert the ZX81 version to ZX Spectrum:



    sed 's/GOTO/GO TO/;s/GOSUB/GO SUB/;s/RAND/RANDOMIZE/;s/SCROLL/POKE 23692,255/' aritm-zx81.bas > aritm-zx81sp.bas



How to produce the tap-file for ZX Spectrum in Linux:



    bas2tap -a10 aritm-zx81sp.bas



How to run the ZX Spectrum version in Linux:



    zesarux --machine 48k aritm-zx81sp.tap



Note that the ZX Spectrum version doesn't work due to convertion problems. There is the orginal version for ZX Spectrum `aritm-zxsp.bas` from

which the ZX81 version was made, but that also doesn't work, but that is not strange since it uses 9 digit precision instead of 8 digit as the

ZX81 version.