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+# pyboard testing functions for PC
+
+def delay(n):
+ pass
+
+rand_seed = 1
+def rand():
+ global rand_seed
+ # for these choice of numbers, see P L'Ecuyer, "Tables of linear congruential generators of different sizes and good lattice structure"
+ rand_seed = (rand_seed * 653276) % 8388593
+ return rand_seed