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version 1.5, 1994/08/19 17:47:21 version 1.6, 1994/08/31 16:37:46
Line 157  deviations of the book. Line 157  deviations of the book.
   
 There is, of course, the standard, the definite reference if you want to  There is, of course, the standard, the definite reference if you want to
 write ANS Forth programs. It will be available in printed form from  write ANS Forth programs. It will be available in printed form from
 !! somtime in spring or summer 1994. If you are lucky, you can still get  Global Engineering Documents !! somtime in spring or summer 1994. If you
 dpANS6 (the draft that was approved as standard) by aftp from  are lucky, you can still get dpANS6 (the draft that was approved as
 ftp.uu.net:/vendor/minerva/x3j14.  standard) by aftp from ftp.uu.net:/vendor/minerva/x3j14.
   
 @cite{Forth: The new model} by Jack Woehr (!! Publisher) is an introductory  @cite{Forth: The new model} by Jack Woehr (!! Publisher) is an
 book based on a draft version of the standard. It does not cover the  introductory book based on a draft version of the standard. It does not
 whole standard. It also contains interesting background information  cover the whole standard. It also contains interesting background
 (Jack Woehr was in the ANS Forth Technical Committe).  information (Jack Woehr was in the ANS Forth Technical Committe). It is
   not appropriate for complete newbies, but programmers experienced in
   other languages should find it ok.
   
 @node Invocation, Words, Other Books, Top  @node Invocation, Words, Other Books, Top
 @chapter Invocation  @chapter Invocation
Line 357  variables. Note that while every sane Fo Line 359  variables. Note that while every sane Fo
 point stack, this is not strictly required; an ANS Forth system could  point stack, this is not strictly required; an ANS Forth system could
 theoretically keep floating point numbers on the data stack. As an  theoretically keep floating point numbers on the data stack. As an
 additional difficulty, you don't know how many cells a floating point  additional difficulty, you don't know how many cells a floating point
 numkber takes. It is reportedly possible to write words in a way that  number takes. It is reportedly possible to write words in a way that
 they work also for a unified stack model, but we do not recommend trying  they work also for a unified stack model, but we do not recommend trying
 it. Also, a Forth system is allowed to keep the local variables on the  it. Also, a Forth system is allowed to keep the local variables on the
 return stack. This is reasonable, as local variables usually eliminate  return stack. This is reasonable, as local variables usually eliminate
 the need to use the return stack explicitely. So, if you want to produce  the need to use the return stack explicitly. So, if you want to produce
 a standard complying program and if you are using local variables in a  a standard complying program and if you are using local variables in a
 word, forget about return stack manipulations in that word (see the  word, forget about return stack manipulations in that word (see the
 standard document for the exact rules).  standard document for the exact rules).
Line 402  r@ Line 404  r@
 rdrop  rdrop
 2>r  2>r
 2r>  2r>
   2r@
   2rdrop
   
 @subsection Locals stack  @subsection Locals stack
   
Removed from v.1.5  
changed lines
  Added in v.1.6

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