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Diff for /gforth/doc/gforth.ds between versions 1.3 and 1.4

version 1.3, 1997/06/06 17:28:14 version 1.4, 1997/06/23 15:54:02
Line 2848  are available: Line 2848  are available:
   
 @table @i  @table @i
   
 @item<return>  @item <return>
 Next; Execute the next word  Next; Execute the next word
   
 @item n  @item n
Line 4945  Double-Word Integers, gcc.info, GNU C Ma Line 4945  Double-Word Integers, gcc.info, GNU C Ma
 double numbers@footnote{Unfortunately, long longs are not implemented  double numbers@footnote{Unfortunately, long longs are not implemented
 properly on all machines (e.g., on alpha-osf1, long longs are only 64  properly on all machines (e.g., on alpha-osf1, long longs are only 64
 bits, the same size as longs (and pointers), but they should be twice as  bits, the same size as longs (and pointers), but they should be twice as
 long according to @ref{Long Long, , Double-Word Integers, gcc.info, GNU  long according to @pxref{Long Long, , Double-Word Integers, gcc.info, GNU
 C Manual}). So, we had to implement doubles in C after all. Still, on  C Manual}). So, we had to implement doubles in C after all. Still, on
 most machines we can use long longs and achieve better performance than  most machines we can use long longs and achieve better performance than
 with the emulation package.}. GNU C is available for free on all  with the emulation package.}. GNU C is available for free on all
Line 5363  cause similar speedups. Line 5363  cause similar speedups.
 The speedup of Gforth over PFE, ThisForth and TILE can be easily  The speedup of Gforth over PFE, ThisForth and TILE can be easily
 explained with the self-imposed restriction of the latter systems to  explained with the self-imposed restriction of the latter systems to
 standard C, which makes efficient threading impossible (however, the  standard C, which makes efficient threading impossible (however, the
 measured implementation of PFE uses a GNU C extension: @ref{Global Reg  measured implementation of PFE uses a GNU C extension: @pxref{Global Reg
 Vars, , Defining Global Register Variables, gcc.info, GNU C Manual}).  Vars, , Defining Global Register Variables, gcc.info, GNU C Manual}).
 Moreover, current C compilers have a hard time optimizing other aspects  Moreover, current C compilers have a hard time optimizing other aspects
 of the ThisForth and the TILE source.  of the ThisForth and the TILE source.
Removed from v.1.3  
changed lines
  Added in v.1.4

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