Fix typos

2 files changed, 9 insertions, 7 deletions

diff --git a/tex/statemachines.tex b/tex/statemachines.tex
index d656569..9fb47e2 100644
--- a/tex/statemachines.tex
+++ b/tex/statemachines.tex
@@ -71,7 +71,7 @@ type state_type is (st_rst, st_a, st_b, st_c, ...);
 signal present_state, next_state : state_type;
 \end{lstlisting}
 The encoding of the state is left automatically to the synthesizer or
-configured in the graphic interface of the tool.  If a custom encoding is
+configured in the graphical interface of the tool.  If a custom encoding is
 required (Medwedjew), adding the following generates a custom encoding.
 \begin{lstlisting}[language=vhdl]
 attribute enum_encoding : string;
diff --git a/tex/vhdl.tex b/tex/vhdl.tex
index 1c03873..e51b357 100644
--- a/tex/vhdl.tex
+++ b/tex/vhdl.tex
@@ -245,14 +245,15 @@ signal a, b : bit;
 data = (1 => a, 0 => b, others => '0')
 \end{lstlisting}
 
-\subsubsection{Seiective and conditional assignment}
+\subsubsection{Selective and conditional assignment}
 Higher level conditions can be written in two ways. 
 \begin{lstlisting}[language=vhdl]
 -- using when
 `\optionalph{label}:` y <= `\reqph{source}` when `\reqph{condition}` else
      `\reqph{source}` when `\reqph{condition}` else
      `\reqph{source}` when `\reqph{condition}`;
-
+\end{lstlisting}
+\begin{lstlisting}[language=vhdl]
 -- using with
 `\optionalph{label}`: with `\reqph{signal}` select `\reqph{dest}` <= 
   `\reqph{source}` when `\reqph{value}`,
@@ -261,7 +262,7 @@ Higher level conditions can be written in two ways.
 \end{lstlisting}
 
 \subsubsection{Components}
-External components that have been previously declared, can be used with the
+External components that have been previously declared can be used with the
 \vhdl{port map(}\reqph{assignments}\texttt{)} syntax. For example:
 \begin{lstlisting}[language=vhdl]
 -- declaration
@@ -274,7 +275,8 @@ end component flipflop;
 
 signal clk_int, a, b : in  std_ulogic;
 signal y, z          : out std_ulogic;
-
+\end{lstlisting}
+\begin{lstlisting}[language=vhdl]
 -- concurrent
 u1: flipflop
   port map(
@@ -288,8 +290,8 @@ u1: flipflop
 \end{lstlisting}
 
 \subsubsection{Processes}
-For more sophisticated logic, VHDL offers a way of writing sequential
-statements called \emph{processes}.
+For more sophisticated logic VHDL offers a way of writing sequential statements
+called \emph{processes}.
 \begin{lstlisting}[language=vhdl]
 `\optionalph{label}:` process (`\optionalph{sensitivity list}`)
 -- declarations