C:Check/D:Check/ST-Check

Latest revision as of 06:28, 8 September 2024

D:CHECK (for disk) and C:CHECK (for cassette tape) by Istvan Mohos and Tom Hudson are type-in checker programs for the Atari used by ANALOG Computing magazine. They were succeeded by Unicheck

ST-Check by Clayton Walnum is direct translation of D:Check II for the 520ST.

Each character in a line is summed up and undergoes module division leaving a three-digit number that is the checksum. It also includes a group checksum every 15 lines.

A new algorithm was introduced in D:Check II (Issue 10) to better handle missing lines or lines with the wrong number of characters.

The codes may be compatible with Antic's TYPO (Type Your Program Once)

[edit] Sample Output

[edit] Links

• Typing Guide for special characters
• D:Check (ANALOG Computing Nov 1982 pg 17)
• D:Check II (ANALOG Computing Mar 1983 pg 26)
• C:Check (ANALOG Computing May 1983 pg 16)
• D:CHECK in Action! (ANALOG Computing Jul 1986 pg 23)
  • .atr/.act format (backup)
• D:CHECK in Action! (alt copy) (ANALOG Computing Dec 1988 pg 43)
  • .atr/.act format (backup)
• ST-Check (ANALOG Computing/ST Log 41 Apr 1986 pg 53ST)