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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  % (percent)        Expression operator
  . (period)         Returns offset
  + (plus)           Returns sum of two expressions
  PAGE               Sets length and width of program listing
  PAGE +             Increments section numbering
  POP                Pop
  POPA               Pop all
  POPF               Pop flags
  PROC               Marks start of procedure
  PTR                Treats expression as having specified type
  PUBLIC             Declares symbol public
  PURGE              Deletes macro
  PUSH               Push
  PUSHA              Push all
  PUSHF              Push flags
  ? (questionmark)   Uninitialized value
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