Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  ┌─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┐
  │A│B│C│D│E│F│G│H│I│J-K│L│M│N-O│P-Q│R│S│T│U│V-Z│
  └─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┘
  : (colon)          Overrides default segment
  @code              Represents segment name
  @CodeSize          Represents value of code size
  .CODE              Indicates start of code segment
  .CONST             Starts constant data segment
  CALL               Call procedure
  CATSTR             Concatenates strings
  CBW                Convert byte to word
  CLC                Clear carry flag
  CLD                Clear direction flag
  CLI                Clear interrupt flag
  CMC                Complement carry flag
  CMP                Compare two operands
  CMPS               Compare string
  CMPSB              Compare string (byte)
  CMPSW              Compare string (word)
  COMM               Creates communal variable
  COMMENT            Defines comment
  @Cpu               Indicates which instruction set enabled
  @CurSeg            Equates to name of current segment
  CWD                Convert word to double
                                    -♦-