Blacklight is a programming language created in 2015 by Anthony M. Cook.
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blacklight is a general-pupose multithreading concatenative stack-based programming language with first-class queues and objects with delegation.
newq newq ;; create send and receive queues
[
[
deq ;; will block if the queue is empty
n-to-cv rot swap enq ;; convert number into a cv (string) and send back
swap ;; reorder queues so we can loop without confusion
] loop ;; using loop since it goes forever
] work ;; start new thread and swap the queues
swap ;; bring send queue to top
1 enq 2 enq 3 enq 4 enq ;; send some numbers to be converted
0
[ 1 add ]
[ 1000 eq ]
until drop ;; give the main thread busywork
swap q-to-v ;; get contents of receive Q as V
print ;; display contents of V