Add some initial structure for the final report.

This structure is far from final or complete, but serves to test the
building infrastructure. Also, the State chapter contains some notes about
possible content.

diff --git a/Chapters/State.tex b/Chapters/State.tex
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+++ b/Chapters/State.tex
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+\chapter{State}
+  \section{Introduction}
+    Provide some examples
+
+  \section{Approaches to state}
+    Explain impact of state (or rather, temporal behaviour) on function signature.
+    \subsection{Stream arguments and results}
+    \subsection{Explicit state arguments and results}
+  \section{Explicit state specification}
+    Note about semantic correctness of top level state.
+
+    Note about automatic ``down-pushing'' of state.
+
+    Note about explicit state specification as the best solution.
+
+    Note about substates
+
+    Note about conditions on state variables and checking them.
+
+  \section{Explicit state implementation}
+    Note about ignoring (sub)state components.
+
+    Note about extracting the state value from the return value.
+
+  \section{Initial state}
+    How to specify the initial state? Cannot be done inside a hardware
+    function, since the initial state is its own state argument for the first
+    call (unless you add an explicit, synchronous reset port).
+
+    External init state is natural for simulation.
+
+    External init state works for hardware generation as well.
+
+    Implementation issues: state splitting, linking input to output state,
+    checking usage constraints on state variables.

diff --git a/Report.tex b/Report.tex
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+++ b/Report.tex
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+\mainlanguage [en]
+\setuppapersize[A4][A4]
+
+\input Utils/Fonts
+\input Utils/Formats
+\input Utils/Lambda
+
+\usetypescript [Custom]
+
+% Use our custom typeface
+\switchtotypeface [Custom] [10pt]
+
+\starttext
+% TODO: Proper title page
+\title {From Haskell to Hardware - a Master's thesis}
+Matthijs Kooijman
+
+\completecontent
+\chapter{Introduction}
+\input Chapters/State
+\chapter{Normalization}
+\chapter{VHDL generation}
+\stoptext

diff --git a/Utils/Fonts.tex b/Utils/Fonts.tex
new file mode 100644 (file)
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+++ b/Utils/Fonts.tex
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+
+% Define a custom typescript. We could also have put the \definetypeface's
+% directly in the script, without a typescript, but I guess this is more
+% elegant...
+\starttypescript[Custom]
+% This is a sans font that supports greek symbols
+\definetypeface [Custom] [ss] [sans]  [iwona]                [default]
+\definetypeface [Custom] [rm] [serif] [antykwa-torunska]     [default]
+\definetypeface [Custom] [tt] [mono]  [modern]               [default]
+\definetypeface [Custom] [mm] [math]  [modern]               [default]
+\stoptypescript

diff --git a/Utils/Formats.tex b/Utils/Formats.tex
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+++ b/Utils/Formats.tex
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+%
+% Defines some useful formatting environments.
+%
+
+% A simple description format
+\definedescription 
+  [desc]
+  [location=hanging,hang=20,width=broad]
+
+% An (invisible) frame to hold some expression. Used to treat multiple lines
+% as a single line and put it next to each other.
+\define[1]\hiddenframe{
+        % The align=right option really does left-alignment, but without it,
+        % all lines will end up on a single line. The strut=no option prevents
+        % a bunch of empty space at the start of the frame.
+        \framed[offset=0mm,location=middle,strut=no,align=right,frame=off]{#1}
+}

diff --git a/Utils/Lambda.tex b/Utils/Lambda.tex
new file mode 100644 (file)
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+++ b/Utils/Lambda.tex
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+%
+% Some utilities for formatting (extended) lambda calculus and
+% transformations.
+%
+
+% Install the lambda calculus pretty-printer, as defined in pret-lam.lua.
+\installprettytype [LAM] [LAM]
+% Define \startlambda \stoplambda
+\definetyping[lambda][option=LAM,style=sans]
+% Define \lam{} (since \lambda is taken)
+\definetype[lam][option=LAM,style=sans]
+
+% Install the transformation pretty-printer, as defined in pret-trans.lua.
+\installprettytype [TRANS] [TRANS]
+% Define \starttrans \stoptrans
+\definetyping[trans][option=TRANS,style=normal,before=,after=]

diff --git a/Utils/shortcuts.tex b/Utils/shortcuts.tex
new file mode 100644 (file)
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+++ b/Utils/shortcuts.tex
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+%
+% This file defines some useful shortcut commands
+%
+
+
+% A shortcut for italicized e.g. and i.e.
+\define[0]\eg{{\em e.g.}}
+\define[0]\ie{{\em i.e.}}