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diff --git a/amforth-6.5/common/lib/multitask-semaphore.frt b/amforth-6.5/common/lib/multitask-semaphore.frt
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--- a/amforth-6.5/common/lib/multitask-semaphore.frt
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@@ -1,15 +0,0 @@
-\ Semaphores (Source: B. Rodriguez)
-\ cvariable sem1
-\ : read sem1 wait do-something sem1 signal ;
-\ do-something has the ressource controlled by sem1 exlusivly
-\ wait can be used to communicate with interrupt service routines too
-\
-: wait ( addr - )
- begin pause dup c@ until \ wait for non-zero = available
- 0 swap c!
-;
-
-: signal ( addr -- )
- 1 swap c! \ non-zero means available
-;
-