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JR-BASIC
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<h2 id="jr-basic-10">JR-BASIC 1.0</h2> <p>JR-BASIC 1.0 is the original version present on the JR-100 computer, released in 1981.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p> <h3>Specifications</h3> <table><tbody><tr><th><a href="/facts/Constant_(computer_programming)/pVQqffen">Constants</a></th><td><a href="/facts/Integer/PUwwrawx">Integer</a> (-32767 to +32767); <a href="/facts/Hexadecimal/02ohQW22">Hexadecimal</a>; <a href="/facts/String_(computer_science)/4ChJu5WS">String</a></td></tr><tr><th>Integer <a href="/facts/Variable_(computer_science)/VoCKtwml">variables</a></th><td>Alphabet or alphabet + number (ex: A, B1)</td></tr><tr><th>String variables</th><td>Alphabet + $ (ex: D $, W $); Up to 32 characters</td></tr><tr><th><a href="/facts/Array_(data_type)/gHJJ3XPw">Arrays</a></th><td>One dimension (ex: E (5)); Two dimensions (ex: F (X, Y))</td></tr><tr><th>Calculations</th><td>Addition (+), Subtraction (-), Multiplication (*), Division (/), Remainder (MOD)</td></tr><tr><th><a href="/facts/Command_(computing)/zUrvQbFy">Commands</a> and <a href="/facts/Statement_(computer_science)/bEkBufqX">Statements</a></th><td>AUTO, BEEP, CLEAR, CLS, CONT, DATA, DIM, END, FIND, FOR - NEXT, GOSUB - RETURN, GOTO, HCOPY, IF - THEN, INPUT, LET, LIST, LLIST, LOAD, LOCATE, LPRINT, MLOAD, MSAVE, NEW, OPTION, PICK, POKE, PRINT, READ, REM, RESTORE, RUN, SAVE, STOP, VERIFY</td></tr><tr><th><a href="/facts/Functions_(programming)/9vFJrg0A">Functions</a></th><td>ABS, ASC, CHR $, FRE, FLD, HEX $, HPOS, VPOS, LEFT $, LEN, MID $, MOD, PEEK, RIGHT $, RND, SGN, SPC, TAB, USR, VAL</td></tr><tr><th><a href="/facts/Line_number/pVClyxjN">Line numbers</a></th><td>1 to 32767</td></tr></tbody></table> <h3>Keyboard commands</h3> <p>Key combinations allowed the user to enter commands and control the onscreen basic interpreter.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <table><tbody><tr><th>Standard input key</th><th>Control mapping</th></tr><tr><td>1</td><td>(HOME)</td></tr><tr><td>2</td><td>VERIFY</td></tr><tr><td>3</td><td>SAVE</td></tr><tr><td>4</td><td>LOAD</td></tr><tr><td>5</td><td>(DELETE)</td></tr><tr><td>6</td><td>(←)</td></tr><tr><td>7</td><td>(↓)</td></tr><tr><td>8</td><td>(↑)</td></tr><tr><td>9</td><td>(→)</td></tr><tr><td>0</td><td>(INSERT)</td></tr><tr><td>–</td><td>(RUBOUT)</td></tr><tr><td>Q</td><td>GOSUB</td></tr><tr><td>W</td><td>RET</td></tr><tr><td>E</td><td>END</td></tr><tr><td>R</td><td>RUN</td></tr><tr><td>T</td><td>THEN</td></tr><tr><td>Y</td><td>LOCATE</td></tr><tr><td>U</td><td>IF</td></tr><tr><td>I</td><td>INPUT</td></tr><tr><td>O</td><td>OPTION</td></tr><tr><td>P</td><td>PRINT</td></tr><tr><td>A</td><td>AUTO</td></tr><tr><td>S</td><td>STOP</td></tr><tr><td>D</td><td>DIM</td></tr><tr><td>F</td><td>FOR</td></tr><tr><td>G</td><td>GOTO</td></tr><tr><td>H</td><td>POKE</td></tr><tr><td>J</td><td>RND (</td></tr><tr><td>K</td><td>READ</td></tr><tr><td>L</td><td>LIST</td></tr><tr><td>;</td><td>CHR $ (</td></tr><tr><td>:</td><td>REM</td></tr><tr><td>Z</td><td>(L.INS)</td></tr><tr><td>X</td><td>(CANCEL)</td></tr><tr><td>C</td><td>(BREAK)</td></tr><tr><td>V</td><td>(GRAPH)</td></tr><tr><td>B</td><td>HCOPY</td></tr><tr><td>N</td><td>NEXT</td></tr><tr><td>M</td><td>CLS</td></tr><tr><td>,</td><td>DATA</td></tr><tr><td>.</td><td>PEEK (</td></tr></tbody></table> <h2 id="jr-basic-50">JR-BASIC 5.0</h2> <p>The JR-200 model, released in 1983,<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> came with JR-BASIC 5.0 that added extended functionally like graphical commands such as COLOR, (which selected character color, background color and display mode) and PLOT which permitted direct addressing of the low resolution graphics mode (64×48, using <a href="/facts/Text_semigraphics/jdlprgPW">text semigraphics</a> characters, which represented pixel blocks that used one-quarter of each character). Eight colors were available for the background and foreground use: blue, red, magenta, green, cyan, yellow, white and black. By re-programming a part of the character-set a limited high resolution graphics mode was achievable with a resolution of 256×192. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Matsushita_JR_series/zQ1DYKhL">Matsushita JR series</a></li> <li><a href="/facts/List_of_BASIC_dialects/yXHk8YS2">List of BASIC dialects</a></li> <li><a href="/facts/List_of_BASIC_dialects_by_platform/yXHk8YS2">List of BASIC dialects by platform</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>kemusiro (May 28, 2017). "JR-100". 計算機室 (Computer room). <a href="http://asamomiji.jp/contents/documents/retropc/jr100" target="_blank">http://asamomiji.jp/contents/documents/retropc/jr100</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Operating Instructions - Personal Computer JR-100U. Matsushita Electric Trading Co., Ltd. <a href="http://archive.org/details/Panasonic_JR-100U_Operating_Instructions" target="_blank">http://archive.org/details/Panasonic_JR-100U_Operating_Instructions</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"MATSUSHITA National JR 100". OLD-COMPUTERS.COM : The Museum. <a href="https://www.old-computers.com/museum/computer.asp?c=320" target="_blank">https://www.old-computers.com/museum/computer.asp?c=320</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Operating Instructions - Personal Computer JR-100U. Matsushita Electric Trading Co., Ltd. <a href="http://archive.org/details/Panasonic_JR-100U_Operating_Instructions" target="_blank">http://archive.org/details/Panasonic_JR-100U_Operating_Instructions</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Ahl, David H. (May 1983). "Panasonic JR-200". Creative Computing Magazine. Vol. 9, no. 5. p. 16. <a href="https://archive.org/details/creativecomputing-1983-05." target="_blank">https://archive.org/details/creativecomputing-1983-05.</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> </ol>