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+# Libio
+> Lib for work with files
+
+## Functions
+
+### Files enumeration
+
+##### `file_find_first`
+> Find first file with matching attributes and mask in specified directory.
+
+**Prototype**:
+`proc file.find_first dir, mask, attr`
+
+**Arguments**:
+| name |  type  | Describtion                                              |
+| :--- | :----: | :------------------------------------------------------- |
+| dir  | ASCIIZ | Directory path, to search in                             |
+| mask | ASCIIZ | File mask, with use of wildcards (a.k.a. shell patterns) |
+| attr | ASCIIZ | File attributes mask (combination of FA_* constants)     |
+
+**Result**:
+| register | type      | Description                                                             |
+| :------- | :-------: | :---------------------------------------------------------------------  |
+| EAX      | Fileinfo* | 0 for error<br/>Matched file data pointer (__acts as find descriptor__) |
+
+
+##### `file_find_next`
+> Find next file matching criteria.
+
+**Prototype**:
+`proc file.find_next findd`
+
+**Argument**:
+| name  |    type   | Describtion                                                |
+| :---- | :-------: | :--------------------------------------------------------- |
+| findd | Fileinfo* | Find describtion (see [file_find_first](#file_find_first)) |
+
+**Result**:
+| register | type      | Description                                                            |
+| :------- | :-------: | :--------------------------------------------------------------------- |
+| EAX      | Fileinfo* | 0 for info<br/>Matched file data pointer (__acts as find descriptor__) |
+
+
+##### `file_find_close`
+> Find next file matching criteria.
+
+**Prototype**:
+`Find next file matching criteria.`
+
+**Arguments**:
+| name  |    type   | Describtion                                                |
+| :---- | :-------: | :--------------------------------------------------------- |
+| findd | Fileinfo* | Find describtion (see [file_find_first](#file_find_first)) |
+
+
+**Result**:
+| register | type  | Description                      |
+| :------- | :---: | :------------------------------- |
+| EAX      | dword | Result of memory freeing routine |