http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Checkbin%2FChecksoft 2026-04-17T16:32:02Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Checkbin/Checksoft&diff=49376&oldid=prev 2024-09-08T06:24:55Z

<p>Created page with &quot;{{FormatInfo |subcat=Error detection and correction |released=1980 }} &#039;&#039;&#039;Checkbin&#039;&#039;&#039; and &#039;&#039;&#039;Checksoft&#039;&#039;&#039; By Robb S Canfield and Softkey Publishing are Apple II typing checker ...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |subcat=Error detection and correction<br /> |released=1980<br /> }}<br /> '''Checkbin''' and '''Checksoft''' By Robb S Canfield and Softkey Publishing are Apple II typing checker programs used by Core and Hardcore Computist. Checksoft is for Applesoft BASIC only and Checkbin is for machine programs (hex).<br /> <br /> They display a four-digit hex checksum for every line and for the program as a whole.<br /> <br /> It is a cumulative checksum so the checksum of every line depends on the lines before it.<br /> <br /> Checksoft can be configured to ignore REM statements, line numbers and next line pointers<br /> <br /> The Hardcore COMPUTIST LISTing format:<br /> <br /> * Spaces that must be keyed in are printed as delta characters<br /> * All other spaces are put there for easier reading and it doesn't matter whether you type them or not<br /> * You must NOT key in any spaces after a DATA command word (unless marked by delta characters)<br /> <br /> Checksoft V2 (1985) by Ray Darrah uses the same format but allows you to pass in a line number and seed so a troublesome line can be bypassed and the rest of the program verified.<br /> <br /> <br /> == Sample Output ==<br /> [[File:checkbin-checksoft.gif]]<br /> <br /> <br /> == Links ==<br /> * [https://archive.org/details/computist-scan-01/page/n11/mode/2up Checksoft] (Hardcore Computist Issue #01 pg 10)<br /> * [https://archive.org/details/computist-scan-18/page/n23/mode/2up Checksoft V2] (Hardcore Computist Issue #18 pg 21)<br /> * [https://archive.org/details/computist-scan-01/page/n21/mode/2up Checkbin] (Hardcore Computist Issue #01 pg 21)</div>

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