https://www.color64wiki.itchybutt.org/index.php?action=history&feed=atom&title=Shorthand_numeric_updatesShorthand numeric updates - Revision history2026-08-26T05:31:05ZRevision history for this page on the wikiMediaWiki 1.42.0https://www.color64wiki.itchybutt.org/index.php?title=Shorthand_numeric_updates&diff=983&oldid=prevAdmin at 14:22, 29 July 20262026-07-29T14:22:33Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Note: Shorthand updates to integer variables use direct 16-bit arithmetic. If the result exceeds the integer range of -32768 through 32767, the value may wrap around rather than generate an overflow error.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Note: Shorthand updates to integer variables use direct 16-bit arithmetic. If the result exceeds the integer range of -32768 through 32767, the value may wrap around rather than generate an overflow error.</div></td></tr>
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</table>Adminhttps://www.color64wiki.itchybutt.org/index.php?title=Shorthand_numeric_updates&diff=982&oldid=prevAdmin at 14:21, 29 July 20262026-07-29T14:21:21Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:21, 29 July 2026</td>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[programming features|Programming Features]] - <strong>Shorthand Numeric Updates</strong></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Color 64 allows a numeric variable or numeric array element to be updated without repeating the variable name on the right side of the assignment.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Color 64 allows a numeric variable or numeric array element to be updated without repeating the variable name on the right side of the assignment.</div></td></tr>
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</table>Adminhttps://www.color64wiki.itchybutt.org/index.php?title=Shorthand_numeric_updates&diff=981&oldid=prevAdmin: Created page with "Color 64 allows a numeric variable or numeric array element to be updated without repeating the variable name on the right side of the assignment. For example: <strong>A+12</strong> is equivalent to: <strong>A=A+12</strong> Subtraction is also supported: <strong>A-12</strong> is equivalent to: <strong>A=A-12</strong> When no expression follows the operator, Color 64 assumes a value of one: <strong>A+</strong> is equivalent to: <strong>A=A+1</strong> <strong>A-</stron..."2026-07-29T14:19:55Z<p>Created page with "Color 64 allows a numeric variable or numeric array element to be updated without repeating the variable name on the right side of the assignment. For example: <strong>A+12</strong> is equivalent to: <strong>A=A+12</strong> Subtraction is also supported: <strong>A-12</strong> is equivalent to: <strong>A=A-12</strong> When no expression follows the operator, Color 64 assumes a value of one: <strong>A+</strong> is equivalent to: <strong>A=A+1</strong> <strong>A-</stron..."</p>
<p><b>New page</b></p><div>Color 64 allows a numeric variable or numeric array element to be updated without repeating the variable name on the right side of the assignment.<br />
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For example: <strong>A+12</strong> is equivalent to: <strong>A=A+12</strong><br />
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Subtraction is also supported: <strong>A-12</strong> is equivalent to: <strong>A=A-12</strong><br />
<br />
When no expression follows the operator, Color 64 assumes a value of one: <strong>A+</strong> is equivalent to: <strong>A=A+1</strong><br />
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<strong>A-</strong> is equivalent to: <strong>A=A-1</strong><br />
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The value following the operator may be any valid numeric BASIC expression. For example: <br />
* <strong>A+X*2</strong><br />
* <strong>A-(B+C)</strong><br />
* <strong>HM+</strong><br />
* <strong>N%(I)-1</strong><br />
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Both floating-point and integer variables are supported, including array elements. String variables are not supported by this shorthand syntax.<br />
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Only the addition (+) and subtraction (-) operators should be used. Other arithmetic or logical operators are not supported in this form.<br />
<br />
Note: Shorthand updates to integer variables use direct 16-bit arithmetic. If the result exceeds the integer range of -32768 through 32767, the value may wrap around rather than generate an overflow error.</div>Admin