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+% bs-20150615.pdf - Lecture Slides on Operating Systems
+% Copyright (C) 2014, 2015 Peter Gerwinski
+%
+% This document is free software: you can redistribute it and/or
+% modify it either under the terms of the Creative Commons
+% Attribution-ShareAlike 3.0 License, or under the terms of the
+% GNU General Public License as published by the Free Software
+% Foundation, either version 3 of the License, or (at your option)
+% any later version.
+%
+% This document is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this document. If not, see <http://www.gnu.org/licenses/>.
+%
+% You should have received a copy of the Creative Commons
+% Attribution-ShareAlike 3.0 Unported License along with this
+% document. If not, see <http://creativecommons.org/licenses/>.
+
+\documentclass[10pt,t]{beamer}
+
+\usepackage{pgslides}
+\usepackage{rotating}
+\usepackage{pdftricks}
+\usepackage[obeyfamily=false,mathrm=mathsf,textrm=sffamily]{siunitx}
+\usepackage{eurosym}
+
+\begin{psinputs}
+ \usepackage[latin1]{inputenc}
+ \usepackage[german]{babel}
+ \usepackage[T1]{fontenc}
+ \usepackage{helvet}
+ \renewcommand*\familydefault{\sfdefault}
+ \usepackage{pstricks}
+ \psset{unit=1cm}
+\end{psinputs}
+
+\title{Treiberentwicklung,\\[\medskipamount]Echtzeit- und Betriebssysteme}
+\author{Prof.\ Dr.\ Peter Gerwinski}
+\date{15.\ Juni 2015}
+
+\begin{document}
+
+\newlength{\normalpdfpageheight}
+\setlength{\normalpdfpageheight}{\pdfpageheight}
+
+\maketitleframe
+
+\section{Einf�hrung}
+\section{Treiber}
+\section{Echtzeit}
+
+\sectionnonumber{\color{black}{\color{red}Treiberentwicklung},
+ {\color{medgreen}Echtzeit-} und
+ {\color{structure}Betriebssysteme}}
+
+\begin{frame}
+ \showsectionnonumber
+
+ \begin{center}
+ \begin{picture}(12,7.5)
+ \put(6,7){\makebox(0,0){Anwendungsprogramm}}
+ \put(6,6.75){\vector(0,-1){1.0}}
+ \put(6,5.5){\makebox(0,0){Systembibilothek + ggf.\ weitere Bibliotheken}}
+ \put(6,5.25){\vector(0,-1){1.0}}
+ \put(6,4){\makebox(0,0){\color{structure}Betriebssystemkern}}
+ \put(5,3.75){\vector(-1,-1){1}}
+ \put(6,3.75){\vector(0,-1){2}}
+ \put(7,3.75){\vector(1,-1){1}}
+ \put(3.75,2.5){\makebox(0,0){\color{red}Treiber}}
+ \put(3.5,2.25){\vector(-1,-1){1}}
+ \put(2.25,1){\makebox(0,0){\color{red}Ger�t}}
+ \put(6,1.5){\makebox(0,0){\color{structure}Hauptspeicher}}
+ \put(8.25,2.5){\makebox(0,0){\color{medgreen}Rechenzeit}}
+ \end{picture}
+ \end{center}
+
+\end{frame}
+
+\section{Grafik}
+\subsection{Hardwarenahe Aspekte}
+
+\begin{frame}
+ \showsection
+ \vspace{-\smallskipamount}
+ Beispiel f�r User-Space-Treiber
+
+ \bigskip
+
+ \showsubsection
+ \vspace{-\bigskipamount}
+ \begin{itemize}
+ \item
+ Text- und Grafikmodi
+ \item
+ Interpretation der Bits, Bytes und Bytefolgen
+ \item
+ Interleaving
+ \end{itemize}
+
+ \medskip
+
+ Umschalten zwischen verschiedenen Modi
+ \begin{itemize}
+ \item
+ Output-Ports
+ \item
+ Programme im ROM, Software-Interrupts
+ \end{itemize}
+\end{frame}
+
+\setcounter{section}{3}
+\section{Speicherverwaltung}
+\subsection{Bank Switching}
+
+\begin{frame}
+ \showsection
+ \vspace*{-\smallskipamount}
+ \showsubsection
+
+ Apple II (1977),\\
+ Commodore 64 (1982), \dots\hfill
+ \begin{picture}(0,0)
+ \put(-6,-2){\includegraphics[width=6cm]{Apple_II.jpg}}
+ \end{picture}
+
+ \medskip
+
+ \begin{itemize}
+ \item
+ Physikalisch adressierbar: 64\,kB
+ \item
+ Bedarf nach mehr Speicher
+ \item
+ L�sung: �ber Output-Port\\
+ Teile des Speichers umschalten
+ \item
+ Das Programm mu� sich derweil vollst�ndig\\
+ in einem anderen Teil des Speichers befinden.
+ \end{itemize}
+
+ \color{red}
+ \textarrow\ Anwendung f�r Grafik: \emph{mehrere oder alternierende Grafikseiten}
+\end{frame}
+
+\setcounter{section}{3}
+\section{Grafik}
+\subsection{Hardwarenahe Aspekte}
+\subsection{Low Level vs.\ High Level}
+
+\begin{frame}
+ \showsection
+ \vspace*{-\smallskipamount}
+ \showsubsection
+
+ Low Level
+ \begin{itemize}
+ \item
+ direkter Speicherzugriff
+ \item
+ Hardware-Beschleunigung
+ \end{itemize}
+
+ \medskip
+
+ High Level
+ \begin{itemize}
+ \item
+ Portabilit�t
+ \item
+ Netzwerkf�higkeit
+ \item
+ Trennung verschiedener Programme\\
+ \textarrow\ Fenster
+ \end{itemize}
+
+ \medskip
+
+ Kompromi�: kontrollierter Low-Level-Zugriff
+
+ \medskip
+
+ Integration in das Betriebssystem
+ \begin{itemize}
+ \item
+ Flexibilit�t vs.\ Einheitlichkeit
+ \end{itemize}
+
+\end{frame}
+
+\setcounter{section}{3}
+\section{Speicherverwaltung}
+\subsection{Bank Switching}
+\subsection{Speichersegmentierung}
+
+\begin{frame}
+ \showsection
+ \vspace*{-\smallskipamount}
+ \showsubsection
+
+ IBM PC (1981),\\
+ IBM PC/AT (1984), \dots\hfill
+ \begin{picture}(0,0)
+ \put(-6,-2){\includegraphics[width=6cm]{IBM_PC_5150.jpg}}
+ \end{picture}
+
+ \medskip
+
+ \begin{itemize}
+ \item
+ Physikalisch adressierbar:\\
+ 1\,MB bis 16\,MB
+ \item
+ Problem: 16-Bit-Register\\
+ k�nnen nur 64\,kB adressieren
+ \item
+ L�sung: Segment- und Offset-Adressen
+ \item
+ Zus�tzlich: L�nge der Segmente einstellbar (Deskriptortabelle)\\
+ \textarrow\ Speicherschutz
+ \item
+ Konzept �bernommen f�r 32-Bit-Prozessoren\\
+ Physikalisch adressierbar: 4\,GB\\
+ \textarrow\ Segmente dienen nur noch dem Speicherschutz
+ \end{itemize}
+
+ \color{red}
+ \textarrow\ Anwendung f�r Grafik: \emph{Grafik-Speichersegment(e)}
+
+\end{frame}
+
+\subsection{Virtuelle Speicherverwaltung}
+
+\begin{frame}
+ \showsection
+ \vspace*{-\smallskipamount}
+ \showsubsection
+
+ \begin{itemize}
+ \item
+ zus�tzlich zur Segmentierung (nachgeschaltet)
+ \item
+ Aufteilung des Speichers in gleich gro�e Kacheln -- \newterm{Pages}
+ \item
+ Speicher mu� nicht wirklich vorhanden sein
+ \arrowitem
+ bei Zugriff: \newterm{Page Fault} ("`Interrupt"')
+ \arrowitem
+ Betriebssystem kann Speicher auf Platte auslagern
+ \arrowitem
+ weitere Anwendung: Dateizugriff �ber "`Speicherbereich"'
+ \medskip
+ \item[\color{red}\textarrow]
+ \color{red}Anwendung f�r Grafik: \emph{Frame Buffer}
+ \end{itemize}
+
+\end{frame}
+
+\end{document}
+
diff --git a/src/rt-2015ss.tex b/src/rt-2015ss.tex
index 2af89a957670adbfc5295cc37a9cf52b18d64e7c..ab074f1efe10dfbb8e548f96600375dde69513dd 100644
--- a/src/rt-2015ss.tex
+++ b/src/rt-2015ss.tex
@@ -40,7 +40,7 @@
\title{Treiberentwicklung,\\[\medskipamount]Echtzeit- und Betriebssysteme}
\author{Prof.\ Dr.\ Peter Gerwinski}
-\date{18.\ und 31.\ Mai 2015}
+\date{18.\ Mai bis 8.\ Juni 2015}
\begin{document}