note about peripherals

[msc-thesis1617.git] / arch.example.tex

diff --git a/arch.example.tex b/arch.example.tex
index ad8c4db..0a05087 100644 (file)
--- a/arch.example.tex
+++ b/arch.example.tex
@@ -137,7 +137,6 @@ functionality.
        | BCValidHB
        | BCGetSP02
        | BCValidSP02
-       | ...
 
 instance hb ByteCode where
        getHb = tell` [BCGetHB]
@@ -150,6 +149,11 @@ instance hb ByteCode where
 The bytecode instructions are added but still the functionality needs to be
 added to the device interface to be implemented by clients. The following
 addition to \CI{interface.h} and the interpreter shows the added instructions.
+When adding a peripheral, the devices not having the peripheral do not need to
+have their code recompiled. New instructions always get a higher bytecode
+number if added correctly. The peripheral byte in the device specification by
+default shows a negative flag for every peripheral. Only the peripherals added
+will be flagged positive.
 
 \begin{lstlisting}[caption={Adding the device interface}]
 // interface.h