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Diff for /gforth/blocks.fs between versions 1.2 and 1.4

version 1.2, 1994/08/31 19:42:43 version 1.4, 1995/04/20 09:42:45
Line 15  variable block-fid 0 block-fid ! \ the f Line 15  variable block-fid 0 block-fid ! \ the f
 variable buffer-dirty buffer-dirty off  variable buffer-dirty buffer-dirty off
   
   
   \ the file is opened as binary file, since it either will contain text
   \ without newlines or binary data
 : get-block-fid ( -- fid )  : get-block-fid ( -- fid )
     block-fid @ 0=      block-fid @ 0=
     if      if
         s" blocks.fb" r/w open-file 0<>          s" blocks.fb" r/w bin open-file 0<>
         if          if
             s" blocks.fb" r/w create-file .s throw              s" blocks.fb" r/w bin create-file throw
         then          then
         block-fid !          block-fid !
     then      then
Line 28  variable buffer-dirty buffer-dirty off Line 30  variable buffer-dirty buffer-dirty off
   
 : block-position ( u -- )  : block-position ( u -- )
     \ positions the block file to the start of block u      \ positions the block file to the start of block u
     1- chars/block chars um* get-block-fid reposition-file .s throw ;      1- chars/block chars um* get-block-fid reposition-file throw ;
   
 : update ( -- )  : update ( -- )
     buffer-dirty on ;      buffer-dirty on ;
   
 : save-buffers ( -- )  : save-buffers ( -- )
     buffer-dirty @      buffer-dirty @ buffer-block @ 0<> and
     if      if
         buffer-block @ block-position          buffer-block @ block-position
         block-buffer chars/block get-block-fid write-file throw          block-buffer chars/block get-block-fid write-file throw
Line 54  variable buffer-dirty buffer-dirty off Line 56  variable buffer-dirty buffer-dirty off
     if      if
         save-buffers          save-buffers
         dup block-position          dup block-position
         block-buffer chars/block get-block-fid read-file .s throw          block-buffer chars/block get-block-fid read-file throw
         \ clear the rest of the buffer if the file is too short          \ clear the rest of the buffer if the file is too short
         block-buffer over chars + chars/block rot - blank          block-buffer over chars + chars/block rot - blank
         buffer-block !              buffer-block !    
Line 76  User scr 0 scr ! Line 78  User scr 0 scr !
     ." Screen " u. cr      ." Screen " u. cr
     16 0      16 0
     ?do      ?do
         scr @ block i 64 * chars + 64 type cr          i 2 .r space scr @ block i 64 * chars + 64 type cr
     loop ;      loop ;
   
 : (source)  ( -- addr len )  : (source)  ( -- addr len )
Line 99  User scr 0 scr ! Line 101  User scr 0 scr !
   
 : +thru ( i*x n1 n2 -- j*x )  : +thru ( i*x n1 n2 -- j*x )
   1+ swap 0 ?DO  I +load  LOOP ;    1+ swap 0 ?DO  I +load  LOOP ;
   
   get-current environment-wordlist set-current
   true constant block
   true constant block-ext
   set-current
Removed from v.1.2  
changed lines
  Added in v.1.4

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