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Graphics Interchange Format  |  1998-02-10  |  53.8 KB  |  604x268  |  4-bit (16 colors)
   ocr: Fleg Flag WHLE.EXPRESSION Winile Expr Body WHILE-EXPRESSION WENLE BODY wia Expr Body If (expr) Set Flag to WHILE.BODY PARSE.COMMAND Body: Push Body onto: Stack Eise Sot Flag to Evaluate and Pop Body NEXT-COMMAND WHILE BOOY Wnile: Expr Body WHILE.BODY if (error in Body) Set Flag to NEXT-COMMAND Push Body onto Stack Else Set Flag to WHILE. EXPRESSION Figure 2: An example of bow tbe stack works.