[gforth] / gforth / extend.fs  

gforth: gforth/extend.fs

Diff for /gforth/extend.fs between version 1.16 and 1.17

version 1.16, Tue Feb 13 11:12:17 1996 UTC version 1.17, Tue Jul 16 20:57:08 1996 UTC
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 ' drop alias d>s ( d -- n ) \ double            d_to_s  ' drop alias d>s ( d -- n ) \ double            d_to_s
   
 : dabs ( d1 -- d2 ) \ double  
     dup 0< IF dnegate THEN ;  
   
 : m*/ ( d1 n2 u3 -- dqout ) \ double m-star-slash  : m*/ ( d1 n2 u3 -- dqout ) \ double m-star-slash
     >r s>d >r abs -rot      >r s>d >r abs -rot
     s>d r> xor r> swap >r >r dabs rot tuck um* 2swap um*      s>d r> xor r> swap >r >r dabs rot tuck um* 2swap um*
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     REPEAT      REPEAT
     2drop 2drop  rdrop false ;      2drop 2drop  rdrop false ;
   
 \ ROLL                                                  17may93jaw  
   
 : roll  ( x0 x1 .. xn n -- x1 .. xn x0 ) \ core-ext  
   dup 1+ pick >r  
   cells sp@ cell+ dup cell+ rot move drop r> ;  
   
 \ SOURCE-ID SAVE-INPUT RESTORE-INPUT                    11jun93jaw  \ SOURCE-ID SAVE-INPUT RESTORE-INPUT                    11jun93jaw
   
 : source-id ( -- 0 | -1 | fileid ) \ core-ext source-i-d  : source-id ( -- 0 | -1 | fileid ) \ core-ext source-i-d
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         key decode ( maxlen span c-addr pos2 flag )          key decode ( maxlen span c-addr pos2 flag )
         >r 2over = r> or          >r 2over = r> or
     UNTIL      UNTIL
     type-rest drop      2 pick swap /string type
     2drop nip span ! ;      nip span ! ;
   

Generate output suitable for use with a patch program
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  Added in v.1.17
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