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authorDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
commit67d25d837ac55f28a366c0a3b262e439a6e75fc3 (patch)
treedf7715c7724c5935ab87c807f3b8b4ef529315e3 /amforth-6.5/msp430/lib/forth-2012/core/evaluate.frt
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/msp430/lib/forth-2012/core/evaluate.frt')
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diff --git a/amforth-6.5/msp430/lib/forth-2012/core/evaluate.frt b/amforth-6.5/msp430/lib/forth-2012/core/evaluate.frt
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+\ evaluate
+\ temporarily redirect the input source
+\ to string buffer. Return the the previous
+\ input source afterwards and continue
+
+\ some helper words
+variable strlen
+variable str
+: source-string str @ strlen @ ;
+
+: evaluate \ i*x addr len -- j*y
+ ['] source defer@ >r
+ >in @ >r
+ 0 >in !
+ strlen !
+ str !
+ ['] source-string to source
+ ['] interpret catch
+ r> >in !
+ r> to source
+ throw
+;