Chexsum
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Parchivist (Talk | contribs) (Created page with "{{FormatInfo |subcat=Error detection and correction |released=1983 }} '''Chexsum''' is a type-in program checker for the Commodore 64 and 16, Amstrad CPC 464 and 664, Atari 13...") |
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* [https://archive.org/details/msxgamesbookandrewlaceyfoundpage56andaddedhere/page/n9/mode/2up MSX Games Book pg 6] | * [https://archive.org/details/msxgamesbookandrewlaceyfoundpage56andaddedhere/page/n9/mode/2up MSX Games Book pg 6] | ||
* [https://archive.org/details/amstrad-games-book-cpc-464-664-kevin-bergin-andrew-laceyacme/page/2/mode/2up Amstrad Games Book pg 3] | * [https://archive.org/details/amstrad-games-book-cpc-464-664-kevin-bergin-andrew-laceyacme/page/2/mode/2up Amstrad Games Book pg 3] | ||
| − | * [https://archive.org/details/writing-adventure-games-on-the-amstrad-mike-lewis-simon-price-1985acme/page/154/mode/2up Writing Adventure Games on the Amstrad pg 155] | + | * [https://archive.org/details/writing-adventure-games-on-the-amstrad-mike-lewis-simon-price-1985acme/page/154/mode/2up Writing Adventure Games on the Amstrad pg 155] ([http://people.cs.bris.ac.uk/~ecsnp/games/Writing%20Adventure%20Games%20on%20the%20Amstrad.pdf alternate source]) |
| − | * [https://archive.org/details/Atari_130XE_Games_Book/page/n11/mode/2up Atari 130XE Games Book pg 3] | + | * [https://archive.org/details/Atari_130XE_Games_Book/page/n11/mode/2up Atari 130XE Games Book pg 3] ([https://www.atarimania.com/documents/Atari_130XE_Games_Book.pdf alternate source]) |
| + | ** [http://atarionline.pl/v01/utils2.php?ct=utils2&sub=9.%20Rozne&title=+Atari+130+XE+Games+Book&file=Atari+130+XE+Games+Book.atr .ATR file] ([http://atarionline.pl/v01/index.php?ct=utils2&sub=9.%20Rozne source page]) | ||
Latest revision as of 05:33, 13 February 2026
Chexsum is a type-in program checker for the Commodore 64 and 16, Amstrad CPC 464 and 664, Atari 130XE, and MSX used by Melbourne House Publishers.
It displays a four-digit checksum for each entered line.
It can sometimes see a '.' as a ',' and a ';' as a ':' if they fall on certain positions in a program line.
There are different versions in each book.
[edit] Sample Output
[edit] Links
- Commodore 64 Games Book pg 4 (alternate source)
- Commodore 64 Games Book 2 pg 7 (alternate source)
- Commodore 64 Machine Language for the Absolute Beginner pg 176
- Commodore 16 Games Book pg 16
- C16 PRG file
- MSX Games Book pg 6
- Amstrad Games Book pg 3
- Writing Adventure Games on the Amstrad pg 155 (alternate source)
- Atari 130XE Games Book pg 3 (alternate source)
