isa: added temp. for design des.

diff --git a/2_isa/desdis.tex b/2_isa/desdis.tex
new file mode 100644 (file)
index 0000000..1ab7430
--- /dev/null
+++ b/2_isa/desdis.tex
@@ -0,0 +1,14 @@
+\section{Design Desicions}
+
+\subsection{Howto save the return address of a call}
+
+stack or linkregister
+
+\subsection{howto implement uart, timer, \ldots}
+
+extension module vs. other
+
+\subsection{how does we define cmp on unsigned values}
+
+see note in conditions. there is a difference between x86/amd64/avr and arm.
+we will very likely go with arm (or?)

diff --git a/2_isa/isa.tex b/2_isa/isa.tex
index c0b5c925e78c5e7c342cde4b3f8d0a5102aa596b..f74a40c80f8ff0bebe7e32ba80a3b82a7bc19d26 100644 (file)
--- a/2_isa/isa.tex
+++ b/2_isa/isa.tex
@@ -14,6 +14,8 @@
 \tableofcontents
 \newpage
 
+\input{desdis}
+
 \input{conds}
 if a condition is not met, the instruction is executed but no changes (on data or flags) occure.
 \clearpage