Merge pull request #573 from coolroman/func_debug_primitives

Added some FunC debug primitives description

Author: reveloper

docs/develop/func/stdlib.mdx

@@ -526,6 +526,7 @@ The pseudo-random number generator uses the random seed, an unsigned 256-bit Int
 Keep in mind that random numbers generated by the functions below can be predicted if you do not use additional tricks.
 
 - [Random number generation](/develop/smart-contracts/guidelines/random-number-generation)
+
 :::
 
 #### random
@@ -650,7 +651,23 @@ A variant of `parse_std_addr` that returns the (rewritten) address as a slice `s
 
 ## Debug primitives
 
-Currently, only one function is available.
+Debug primitives can be used for inspecting state of various variables while running tests or console scripts.
+
+#### ~dump
+
+```func
+forall X -> () ~dump(X value) impure asm "s0 DUMP";
+```
+
+Outputs a value. Several values can be dumped as a tuple, e.g. `~dump([v1, v2, v3])`.
+
+#### ~strdump
+
+```func
+() ~strdump(slice str) impure asm "STRDUMP";
+```
+
+Dumps a string. Slice parameter bit length must be divisible by 8.
 
 #### dump_stack