_abs
_labs
+__findfirst
+__findnext
+__findclose
+__chdir
+__getcwd
+__mkdir
+__mktemp
+__rmdir
+__chmod
+_remove
+_rename
+
# float
__control87
__controlfp
-# math
-# __ftol2 - todo
+# msvcrt math
+# __ftol - x87 state
+# __ftol2 - x87 state
_ceil
+_sqrt
+_pow
+__rotl
+__rotr
# msvcrt
__beginthread