[PATCH olang v1 1/2] docs: add pointer docs

[Carlos Maniero <carlos@maniero.me>]

Signed-off-by: Carlos Maniero <carlos@maniero.me>
---
 docs/info/getting-started.texi | 37 ++++++++++++++++++++++++++++++----
 1 file changed, 33 insertions(+), 4 deletions(-)

diff --git a/docs/info/getting-started.texi b/docs/info/getting-started.texi
index 5547446..77b9298 100644
--- a/docs/info/getting-started.texi
+++ b/docs/info/getting-started.texi
@@ -6,11 +6,13 @@ basics of the language's syntax. We'll cover variables, data types, operators,
 control flow, and functions.
 
 By the end of this chapter, you'll have a solid foundation in the O language
-syntax and be ready to start writing your own programs. Let's dive in!
+syntax and be ready to start writing your own programs. If you are already
+familiar with C-like languages, you will find out that @code{O} behave pretty
+much the same with some small quirks. Let's dive in!
 
 @section An olang program
 
-An O programmin language program starts with a @code{main} function. This
+An O programming language program starts with a @code{main} function. This
 function must return the program exit code.
 
 @verbatim
@@ -120,8 +122,6 @@ Unsigned 64 bits.
 
 @section Binary Operations
 
-Binary operations are pretty much like C.
-
 @subsection Logical
 
 @table @samp
@@ -249,3 +249,32 @@ expr1 % expr2
 @end verbatim
 
 @end table
+
+@section Pointers
+
+Dealing with memory address.
+
+@subsection Address of (&)
+
+Get the address of a variable.
+
+@verbatim
+var my_var: u32 = 0
+
+var my_pointer: u32* = &my_var
+@end verbatim
+
+@subsection Dereferencing (*)
+
+Accessing the value of the address a pointer points to.
+
+@verbatim
+var my_var: u32 = 0
+
+# The result of *my_pointer is the value of my_var (0).
+*my_pointer
+
+*my_pointer = 42
+@end verbatim
+
+The program above sets the @code{my_var}'s to 42.
-- 
2.46.1