implement sqrt(long)

docs/source/libraries.rst

@@ -85,7 +85,7 @@ Math
 
 :index:`sqrt` (x)
     Returns the square root of the number.
-    Accepts unsigned integer (result is ubyte), long (result is uword, but this may not be implemented on all targets), and floating point numbers.
+    Accepts unsigned integer (result is ubyte), long (result is uword), and floating point numbers.
     To do the reverse - squaring a number - just write ``x*x``.
 
 

docs/source/todo.rst

@@ -1,6 +1,11 @@
 TODO
 ====
 
+- FSignature.callConvention should not pass long via R14R15
+- func_sign_l_r14r15_into_A should not take the long in r14r15 but in regular parameter like sqrt_long
+
+
+
 Known bugs:
 - fix chained aliasing errors see test "chained aliasing"
 - fix crash in ir loader/vm for deeply nested symbol reference, see test "deeply scoped variable references"