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35 lines
2.2 KiB
Plaintext
35 lines
2.2 KiB
Plaintext
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0 \ Copy und Convey 19Nov87
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1
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2 Dieses File enthaelt Definitionen, die urspruenglich im Kern
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3 enthalten waren. Sie sind jetzt ausgelagert worden, um den Kern
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4 klein zu halten.
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5
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6 copy kopiert einen Screen
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7
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8 convey kopiert einen Bereich von Screens
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11
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15
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Screen 1 not modified
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0 \ moving blocks 20Oct86 19Nov87
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1 | : full? ( -- flag ) prev BEGIN @ dup @ 0= UNTIL 6 + @ 0< ;
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2 | : fromblock ( blk -- adr ) fromfile @ (block ;
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3 | : (copy ( from to -- )
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4 dup isfile@ core? IF prev @ emptybuf THEN
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5 full? IF save-buffers THEN
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6 offset @ + isfile@ rot fromblock 6 - 2! update ;
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7 | : blkmove ( from to quan --) save-buffers >r
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8 over r@ + over u> >r 2dup u< r> and
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9 IF r@ r@ d+ r> 0 ?DO -1 -2 d+ 2dup (copy LOOP
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10 ELSE r> 0 ?DO 2dup (copy 1 1 d+ LOOP THEN
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11 save-buffers 2drop ;
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12
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13 : copy ( from to --) 1 blkmove ;
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14 : convey ( [blk1 blk2] [to.blk --)
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15 swap 1+ 2 pick - dup 0> not Abort" Nein !" blkmove ;
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