Mercurial > hg > ede

changeset 37:db6b8c9552bb

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couple of last minute bug fixes
author james <jb302@eecs.qmul.ac.uk>
date Fri, 18 Apr 2014 18:58:58 +0100
parents 8205f1734ff2
children 9ff51da22b9b
files dbg/dbg.py docs/img/ede/system_overview.svg docs/img/emu/ELB816_system.svg docs/img/emu/controller.svg docs/img/emu/memory.svg docs/lyx/#emu.lyx# docs/lyx/asm.lyx docs/lyx/dbg.lyx docs/lyx/ede.lyx docs/lyx/emu.lyx docs/lyx/emu.lyx~ docs/lyx/final_report.lyx docs/lyx/final_report.lyx~ docs/lyx/intro.lyx docs/lyx/intro.lyx~ emu/.mem.h.swp emu/main.c emu52/main.c
diffstat 18 files changed, 12296 insertions(+), 20 deletions(-) [+]
line wrap: on
line diff
--- a/dbg/dbg.py	Thu Apr 17 15:50:42 2014 +0100
+++ b/dbg/dbg.py	Fri Apr 18 18:58:58 2014 +0100
@@ -78,27 +78,27 @@
         return self.rcv(lenl | (lenh << 8))
 
     def get_a(self):
+        self.snd(0x08)
+        return self.rcv(1)
+
+    def get_flags(self):
         self.snd(0x09)
         return self.rcv(1)
 
-    def get_flags(self):
+    def get_ir(self):
         self.snd(0x0A)
         return self.rcv(1)
 
-    def get_ir(self):
+    def run_len(self, lenh, lenl):
         self.snd(0x0B)
-        return self.rcv(1)
-
-    def run_len(self, lenh, lenl):
-        self.snd(0x0C)
         self.snd(lenh)
         self.snd(lenl)
 
     def free_run(self):
-        self.snd(0x0D)
+        self.snd(0x0C)
 
     def set_bp(self, i, addrh, addrl):
-        self.snd(0x0E)
+        self.snd(0x0D)
         self.snd(i)
         self.snd(addrh)
         self.snd(addrl)
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/img/ede/system_overview.svg	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,365 @@
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/#emu.lyx#	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,1808 @@
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
+\lyxformat 413
+\begin_document
+\begin_header
+\textclass article
+\begin_preamble
+\usepackage[export]{adjustbox}% http://ctan.org/pkg/adjustbox
+% Resize figures that are too wide for the page.
+\let\oldincludegraphics\includegraphics
+\renewcommand\includegraphics[2][]{%
+  \oldincludegraphics[#1,max width=\linewidth,max height=\textheight]{#2}
+}
+\end_preamble
+\use_default_options true
+\maintain_unincluded_children false
+\language english
+\language_package default
+\inputencoding auto
+\fontencoding global
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+\font_typewriter default
+\font_default_family default
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+\font_tt_scale 100
+
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+\spacing single
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+\papersize default
+\use_geometry false
+\use_amsmath 1
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+\use_mhchem 1
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+\cite_engine basic
+\use_bibtopic false
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+\paperorientation portrait
+\suppress_date false
+\use_refstyle 1
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\quotes_language english
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tracking_changes false
+\output_changes false
+\html_math_output 0
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+\html_be_strict false
+\end_header
+
+\begin_body
+
+\begin_layout Part
+The Emulator
+\end_layout
+
+\begin_layout Section
+Emulator Design
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/ELB816_system.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Above is block diagram of a micro-controller taken from the original ELB816
+ specification.
+ Implementing this system as a piece of software is the goal of this section
+ of the project.
+\end_layout
+
+\begin_layout Subsection
+Memory and Registers
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
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+bigskip
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+\begin_inset Graphics
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+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+The micro-controller is based on a Von Neumann architecture and has:
+\end_layout
+
+\begin_layout Itemize
+A single block of up to 64k byte addressable memory for storing both data
+ and code.
+\end_layout
+
+\begin_layout Itemize
+Two banks of four 8-bit general purpose registers (R0 to R3).
+\end_layout
+
+\begin_layout Itemize
+Four 16 bit-content specific (PC, SP, DPTR and TMPA)
+\end_layout
+
+\begin_layout Itemize
+Three 8-bit content specific registers (A, flags and IR) 
+\end_layout
+
+\begin_layout Standard
+The general purpose and 16-bit registers can exist as a single sixteen byte
+ block of memory spaces with the following encoding:
+\end_layout
+
+\begin_layout Standard
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+status open
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+Set to 1 when result of arithmetic operation generates a carry or borrow
+ from bit 3
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+6
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Z
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation is Zero
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+7
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+C
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible: Set to 1 when result of arithmetic operation generates
+ a carry or borrow from bit 7.
+ Used in rotate through carry operations
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+There is also an 8-bit accumulator register for storing the result of various
+ operations and an 8-bit instruction register for the storing the instruction
+ currently being executed.
+\end_layout
+
+\begin_layout Subsection
+Control and Execution
+\end_layout
+
+\begin_layout Standard
+The emulator needs to be controlled externally.
+ This could be via a serial or a file buffer depending on the platform.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/controller.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Below is a control protocol which allows and control of the emulators memory
+ and execution.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Tabular
+<lyxtabular version="3" rows="15" columns="5">
+<features tabularvalignment="middle">
+<column alignment="center" valignment="top" width="0">
+<column alignment="left" valignment="top" width="2cm">
+<column alignment="center" valignment="top" width="1cm">
+<column alignment="center" valignment="top" width="1cm">
+<column alignment="center" valignment="top" width="3cm">
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Function
+\end_layout
+
+\end_inset
+</cell>
+<cell multicolumn="1" alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Arguments
+\end_layout
+
+\end_inset
+</cell>
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+\begin_inset Text
+
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+Command Byte
+\end_layout
+
+\end_inset
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+\begin_inset Text
+
+\begin_layout Plain Layout
+Length
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Description
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
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+\begin_inset Text
+
+\begin_layout Plain Layout
+step
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x00
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Execute Instruction at PC
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+run
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
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+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x01
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Execute instructions from PC until a break point is reached
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set register
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+register address, value
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x02
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set a register
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get register
+\end_layout
+
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+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
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+
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+
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+
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+\begin_inset Text
+
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+2
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get the value of a register
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set flag
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+flag bit, 0 or 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x04
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Turn a flag bit on or off.
+ LSB = 0, MSB =7
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get flag
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+flag bit
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x05
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+2
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get the value of a flag bit
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+write memory block
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+address high, address low, length high, length low, [byte array]
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x06
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+6+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set a block of memory of arbitrary length with the bytes in the byte array
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+read memory block
+\end_layout
+
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+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
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+
+\begin_layout Plain Layout
+address high, address low, length high, length low
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+
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+
+\begin_layout Plain Layout
+0x07
+\end_layout
+
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+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
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+5
+\end_layout
+
+\end_inset
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+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Read a block of memory of arbitrary length 
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get A
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x08
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get value of A
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get flags
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x09
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get value of flags
+\end_layout
+
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+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get IR
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0xA
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get Value of IR
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+run for length
+\end_layout
+
+\end_inset
+</cell>
+<cell multirow="3" alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+length high, length low
+\end_layout
+
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+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0B
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+
+\end_inset
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+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Run for length number of instruction
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+free run
+\end_layout
+
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+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
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+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0C
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Run forever - Bypass controller
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set break point
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+break point index, address high, address low
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0D
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+4
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set 1 of 8 possible break points
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Subsection
+Interrupt Controller
+\end_layout
+
+\begin_layout Subsection
+Timer
+\end_layout
+
+\begin_layout Section
+Emulator Implementation
+\end_layout
+
+\begin_layout Section
+Emulator Testing
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/asm.lyx	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,79 @@
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
+\lyxformat 413
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+
+\begin_body
+
+\begin_layout Part
+The Assembler
+\end_layout
+
+\begin_layout Section
+Assembler Design
+\end_layout
+
+\begin_layout Section
+Assembler Implementation
+\end_layout
+
+\begin_layout Section
+Assembler Testing
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/dbg.lyx	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,79 @@
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
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+
+\begin_body
+
+\begin_layout Part
+The Debugger
+\end_layout
+
+\begin_layout Section
+Design
+\end_layout
+
+\begin_layout Section
+Implementation
+\end_layout
+
+\begin_layout Section
+Testing
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/ede.lyx	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,79 @@
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+
+\begin_body
+
+\begin_layout Part
+The ELB816 Development Environment
+\end_layout
+
+\begin_layout Section
+EDE Overview
+\end_layout
+
+\begin_layout Section
+EDE Interfaces
+\end_layout
+
+\begin_layout Section
+EDE Improvements
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/emu.lyx	Fri Apr 18 18:58:58 2014 +0100
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+
+\begin_body
+
+\begin_layout Part
+The Emulator
+\end_layout
+
+\begin_layout Section
+Emulator Design
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/ELB816_system.svg
+	display false
+
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+
+
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+
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+Above is a block diagram of a micro-controller with the ELB816 micro-processor
+ at it's core.
+ This is taken from the original ELB816 specification.
+ Implementing a system similar to this as a piece of software is the goal
+ of this section of the project.
+\end_layout
+
+\begin_layout Subsection
+Memory and Registers
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+\begin_layout Itemize
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+Two banks of four 8-bit general purpose registers (R0 to R3).
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+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation has even parity
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+5
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+AC
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation generates a carry or borrow
+ from bit 3
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+6
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Z
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation is Zero
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+7
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+C
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible: Set to 1 when result of arithmetic operation generates
+ a carry or borrow from bit 7.
+ Used in rotate through carry operations
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+There is also an 8-bit accumulator register for storing the result of various
+ operations and an 8-bit instruction register for the storing the instruction
+ currently being executed.
+\end_layout
+
+\begin_layout Subsection
+Control and Execution
+\end_layout
+
+\begin_layout Standard
+The emulator needs to be controlled externally.
+ This could be via a serial or a file buffer depending on the platform.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/controller.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Below is a control protocol which allows and control of the emulators memory
+ and execution.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Tabular
+<lyxtabular version="3" rows="15" columns="5">
+<features tabularvalignment="middle">
+<column alignment="center" valignment="top" width="0">
+<column alignment="left" valignment="top" width="2cm">
+<column alignment="center" valignment="top" width="1cm">
+<column alignment="center" valignment="top" width="1cm">
+<column alignment="center" valignment="top" width="3cm">
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Function
+\end_layout
+
+\end_inset
+</cell>
+<cell multicolumn="1" alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Arguments
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+CMD byte
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Length
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Description
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+step
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x00
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Execute instruction at PC
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+run
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x01
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Execute instructions from PC until a break point is reached
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set register
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+register address, value
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x02
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set a register
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get register
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+register address
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x03
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+2
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get the value of a register
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set flag
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+flag bit, 0 or 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x04
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Turn a flag bit on or off.
+ LSB = 0, MSB =7
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get flag
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+flag bit
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x05
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+2
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get the value of a flag bit
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+write memory block
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+address high, address low, length high, length low, [byte array]
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x06
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+6+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set a block of memory of arbitrary length with the bytes in the byte array
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+read memory block
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+address high, address low, length high, length low
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x07
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+5
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Read a block of memory of arbitrary length 
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get A
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x08
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get value of A
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get flags
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x09
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get value of flags
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+get IR
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0A
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Get Value of IR
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+run for length
+\end_layout
+
+\end_inset
+</cell>
+<cell multirow="3" alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+length high, length low
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0B
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Run for length number of instruction
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+free run
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0C
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Run forever - Bypass controller
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+set break point
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+break point index, address high, address low
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0x0D
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+4
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set 1 of 8 possible break points
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Subsection
+Interrupt Controller
+\end_layout
+
+\begin_layout Subsection
+Timer
+\end_layout
+
+\begin_layout Section
+Emulator Implementation
+\end_layout
+
+\begin_layout Section
+Emulator Testing
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/emu.lyx~	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,1809 @@
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
+\lyxformat 413
+\begin_document
+\begin_header
+\textclass article
+\begin_preamble
+\usepackage[export]{adjustbox}% http://ctan.org/pkg/adjustbox
+% Resize figures that are too wide for the page.
+\let\oldincludegraphics\includegraphics
+\renewcommand\includegraphics[2][]{%
+  \oldincludegraphics[#1,max width=\linewidth,max height=\textheight]{#2}
+}
+\end_preamble
+\use_default_options true
+\maintain_unincluded_children false
+\language english
+\language_package default
+\inputencoding auto
+\fontencoding global
+\font_roman default
+\font_sans default
+\font_typewriter default
+\font_default_family default
+\use_non_tex_fonts false
+\font_sc false
+\font_osf false
+\font_sf_scale 100
+\font_tt_scale 100
+
+\graphics default
+\default_output_format default
+\output_sync 0
+\bibtex_command default
+\index_command default
+\paperfontsize default
+\spacing single
+\use_hyperref false
+\papersize default
+\use_geometry false
+\use_amsmath 1
+\use_esint 1
+\use_mhchem 1
+\use_mathdots 1
+\cite_engine basic
+\use_bibtopic false
+\use_indices false
+\paperorientation portrait
+\suppress_date false
+\use_refstyle 1
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\quotes_language english
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tracking_changes false
+\output_changes false
+\html_math_output 0
+\html_css_as_file 0
+\html_be_strict false
+\end_header
+
+\begin_body
+
+\begin_layout Part
+The Emulator
+\end_layout
+
+\begin_layout Section
+Emulator Design
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/ELB816_system.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Above is a block diagram of a micro-controller with the ELB816 micro-processor
+ at it's core.
+ This is taken from the original ELB816 specification.
+ Implementing a system similar to this as a piece of software is the goal
+ of this section of the project.
+\end_layout
+
+\begin_layout Subsection
+Memory and Registers
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/memory.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+The micro-controller is based on a Von Neumann architecture and has:
+\end_layout
+
+\begin_layout Itemize
+A single block of up to 64k byte addressable memory for storing both data
+ and code.
+\end_layout
+
+\begin_layout Itemize
+Two banks of four 8-bit general purpose registers (R0 to R3).
+\end_layout
+
+\begin_layout Itemize
+Four 16-bit content specific (PC, SP, DPTR and TMPA)
+\end_layout
+
+\begin_layout Itemize
+Three 8-bit content specific registers (A, flags and IR) 
+\end_layout
+
+\begin_layout Standard
+The general purpose 8-bit registers and the 16-bit registers can exist as
+ a single sixteen byte block of memory spaces with the following encoding:
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Tabular
+<lyxtabular version="3" rows="10" columns="5">
+<features tabularvalignment="middle">
+<column alignment="center" valignment="top" width="0">
+<column alignment="center" valignment="top" width="0">
+<column alignment="center" valignment="top" width="0">
+<column alignment="center" valignment="top" width="0">
+<column alignment="center" valignment="top" width="0">
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+MSB
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+MSB
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Description
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+LSB
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible?
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+000
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R0 bank 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R0 bank 0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+General Purpose
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+001
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R1 bank 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R1 bank 0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+General Purpose
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+010
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R2 bank 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R2 bank 0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+General Purpose
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+011
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R3 bank 1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+R3 bank 0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+General Purpose
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+100
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+DPH
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+DPL
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Data Pointer
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+101
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+SPH
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+SPL
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Stack Pointer
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Yes
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+110
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+PCH
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+PCL
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Program Counter
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+No
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+111
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+TPH
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+TPL
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Temp Address Register
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+No
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Newpage pagebreak
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+The 8-bit flag register can exist as a single byte with the following format:
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Tabular
+<lyxtabular version="3" rows="9" columns="3">
+<features tabularvalignment="middle">
+<column alignment="center" valignment="top" width="0">
+<column alignment="center" valignment="top" width="0">
+<column alignment="left" valignment="top" width="10cm">
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Bit
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Flag
+\end_layout
+
+\end_inset
+</cell>
+<cell multicolumn="1" alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Description
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+0
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+BS
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible: Select register bank
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+1
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+IE
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible: Enable Interrupts when 1 
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+2
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+OV
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation has even parity
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+3
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+S
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation is negative
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+4
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+P
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation has even parity
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+5
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+AC
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation generates a carry or borrow
+ from bit 3
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+6
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Z
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Set to 1 when result of arithmetic operation is Zero
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+7
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+C
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="left" valignment="top" topline="true" bottomline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+User Accessible: Set to 1 when result of arithmetic operation generates
+ a carry or borrow from bit 7.
+ Used in rotate through carry operations
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+There is also an 8-bit accumulator register for storing the result of various
+ operations and an 8-bit instruction register for the storing the instruction
+ currently being executed.
+\end_layout
+
+\begin_layout Subsection
+Control and Execution
+\end_layout
+
+\begin_layout Standard
+The emulator needs to be controlled externally.
+ This could be via a serial or a file buffer depending on the platform.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Graphics
+	filename /home/jmz/qm/ede/docs/img/emu/controller.svg
+	display false
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Below is a control protocol which allows and control of the emulators memory
+ and execution.
+\end_layout
+
+\begin_layout Standard
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+bigskip
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Tabular
+<lyxtabular version="3" rows="15" columns="5">
+<features tabularvalignment="middle">
+<column alignment="center" valignment="top" width="0">
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+\begin_layout Section
+Emulator Implementation
+\end_layout
+
+\begin_layout Section
+Emulator Testing
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/final_report.lyx	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,130 @@
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
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+\use_default_options true
+\maintain_unincluded_children false
+\language english
+\language_package default
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+\fontencoding global
+\font_roman default
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+\font_sc false
+\font_osf false
+\font_sf_scale 100
+\font_tt_scale 100
+
+\graphics default
+\default_output_format default
+\output_sync 0
+\bibtex_command default
+\index_command default
+\paperfontsize default
+\use_hyperref false
+\papersize default
+\use_geometry false
+\use_amsmath 1
+\use_esint 1
+\use_mhchem 1
+\use_mathdots 1
+\cite_engine basic
+\use_bibtopic false
+\use_indices false
+\paperorientation portrait
+\suppress_date false
+\use_refstyle 1
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\quotes_language english
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tracking_changes false
+\output_changes false
+\html_math_output 0
+\html_css_as_file 0
+\html_be_strict false
+\end_header
+
+\begin_body
+
+\begin_layout Part
+Introduction
+\end_layout
+
+\begin_layout Section
+Motivations
+\end_layout
+
+\begin_layout Standard
+The ELB816 architecture is designed to be a 
+\begin_inset Quotes eld
+\end_inset
+
+simple to understand 8-bit microprocessor system to help learn about micro-proce
+ssor electronics.
+\begin_inset Quotes erd
+\end_inset
+
+.
+ The combination of an ELB816 emulator, debugger and assembler could be
+ used as a set of tools for learning or teaching micro-processor programming
+ without the intricacies of real-world commercial microprocessors getting
+ in the way of a fundamental understanding of the subject.
+ A PC based emulator would allow students to quickly develop and debug programs
+ written in a simple assembly language on any modern desktop or laptop,
+ and an MCS-51 port running on an 8052 would allow students to test programs
+ in an actual circuit.
+ EDE aims to bring together these components in order to provide an environment
+ for using ELB816 as an educational tool.
+\end_layout
+
+\begin_layout Section
+Project Aims
+\end_layout
+
+\begin_layout Itemize
+Develop an assembler for the ELB816 assembly language.
+\end_layout
+
+\begin_layout Itemize
+Develop an emulated programmable micro-controller system based on the ELB816
+ micro-processor architecture.
+\end_layout
+
+\begin_layout Itemize
+Develop a debugger that allows interactive debugging of programs running
+ on the emulator.
+\end_layout
+
+\begin_layout Section
+Methodology
+\end_layout
+
+\begin_layout Subsection
+Assembler
+\end_layout
+
+\begin_layout Description
+Language: Python
+\end_layout
+
+\begin_layout Description
+Priority: First
+\end_layout
+
+\begin_layout Standard
+The assembler will be developed before anything else so that it can subsequently
+ be used to assemble test programs during development of the emulator.
+ 
+\end_layout
+
+\begin_layout Subsection
+Emulator
+\end_layout
+
+\begin_layout Description
+Language: C
+\end_layout
+
+\begin_layout Description
+Priority: Second
+\end_layout
+
+\begin_layout Standard
+The emulator will use only standard libraries in order to ensure it is portable
+ between compilers and platforms.
+ Specifically GCC for x86 and Keil C51 for Intel MCS-51.
+ The emulator will first be developed on Linux to facilitated rapid development.
+ It will be ported to MCS-51 once it is complete
+\end_layout
+
+\begin_layout Subsection
+Debugger
+\end_layout
+
+\begin_layout Description
+Language: C/Python
+\end_layout
+
+\begin_layout Description
+Priority: Second
+\end_layout
+
+\begin_layout Standard
+The debug interface will be developed along side the emulator.
+ It will communicate with a a simple control function, built into the emulator,
+ that will read commands using C's 
+\begin_inset listings
+lstparams "basicstyle={\ttfamily}"
+inline true
+status open
+
+\begin_layout Plain Layout
+
+stdio.h
+\end_layout
+
+\end_inset
+
+ library.
+ This means that on Linux the commands will be issued using 
+\begin_inset listings
+lstparams "basicstyle={\ttfamily}"
+inline true
+status open
+
+\begin_layout Plain Layout
+
+STDIN
+\end_layout
+
+\end_inset
+
+ and on the MCS-51 version they will be issued over a serial interface.
+ Python will be used to build a controller class for sending commands to
+ and receiving data from the emulator.
+ Python will also be used to build a text based user interface on top of
+ this.
+\end_layout
+
+\end_body
+\end_document
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/lyx/intro.lyx~	Fri Apr 18 18:58:58 2014 +0100
@@ -0,0 +1,203 @@
+#LyX 2.0 created this file. For more info see http://www.lyx.org/
+\lyxformat 413
+\begin_document
+\begin_header
+\textclass article
+\use_default_options true
+\maintain_unincluded_children false
+\language english
+\language_package default
+\inputencoding auto
+\fontencoding global
+\font_roman default
+\font_sans default
+\font_typewriter default
+\font_default_family default
+\use_non_tex_fonts false
+\font_sc false
+\font_osf false
+\font_sf_scale 100
+\font_tt_scale 100
+
+\graphics default
+\default_output_format default
+\output_sync 0
+\bibtex_command default
+\index_command default
+\paperfontsize default
+\use_hyperref false
+\papersize default
+\use_geometry false
+\use_amsmath 1
+\use_esint 1
+\use_mhchem 1
+\use_mathdots 1
+\cite_engine basic
+\use_bibtopic false
+\use_indices false
+\paperorientation portrait
+\suppress_date false
+\use_refstyle 1
+\index Index
+\shortcut idx
+\color #008000
+\end_index
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\paragraph_indentation default
+\quotes_language english
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+\tracking_changes false
+\output_changes false
+\html_math_output 0
+\html_css_as_file 0
+\html_be_strict false
+\end_header
+
+\begin_body
+
+\begin_layout Part
+Introduction
+\end_layout
+
+\begin_layout Section
+Motivations
+\end_layout
+
+\begin_layout Standard
+The ELB816 architecture is designed to be a 
+\begin_inset Quotes eld
+\end_inset
+
+simple to understand 8-bit microprocessor system to help learn about micro-proce
+ssor electronics.
+\begin_inset Quotes erd
+\end_inset
+
+.
+ The combination of an ELB816 emulator, debugger and assembler could be
+ used as a set of tools for learning or teaching micro-processor programming
+ without the intricacies of real-world commercial microprocessors getting
+ in the way of a fundamental understanding of the subject.
+ A PC based emulator would allow students to quickly develop and debug programs
+ written in a simple assembly language on any modern desktop or laptop and
+ an MCS-51 port running on an 8052 would allow students to test programs
+ in an actual circuit.
+ EDE aims to bring together these components in order to provide an environment
+ for using ELB816 as an educational tool.
+\end_layout
+
+\begin_layout Section
+Project Aims
+\end_layout
+
+\begin_layout Itemize
+Develop an assembler for the ELB816 assembly language.
+\end_layout
+
+\begin_layout Itemize
+Develop an emulated programmable micro-controller system based on the ELB816
+ micro-processor architecture.
+\end_layout
+
+\begin_layout Itemize
+Develop a debugger that allows interactive debugging of programs running
+ on the emulator.
+\end_layout
+
+\begin_layout Section
+Methodology
+\end_layout
+
+\begin_layout Subsection
+Assembler
+\end_layout
+
+\begin_layout Description
+Language: Python
+\end_layout
+
+\begin_layout Description
+Priority: First
+\end_layout
+
+\begin_layout Standard
+The assembler will be developed before anything else so that it can subsequently
+ be used to assemble test programs during development of the emulator.
+ 
+\end_layout
+
+\begin_layout Subsection
+Emulator
+\end_layout
+
+\begin_layout Description
+Language: C
+\end_layout
+
+\begin_layout Description
+Priority: Second
+\end_layout
+
+\begin_layout Standard
+The emulator will use only standard libraries in order to ensure it is portable
+ between compilers and platforms.
+ Specifically GCC for x86 and Keil C51 for Intel MCS-51.
+ The emulator will first be developed on Linux to facilitated rapid development.
+ It will be ported to MCS-51 once it is complete
+\end_layout
+
+\begin_layout Subsection
+Debugger
+\end_layout
+
+\begin_layout Description
+Language: C/Python
+\end_layout
+
+\begin_layout Description
+Priority: Second
+\end_layout
+
+\begin_layout Standard
+The debug interface will be developed along side the emulator.
+ It will communicate with a a simple control function built into the emulator
+ that will read commands using C's 
+\begin_inset listings
+lstparams "basicstyle={\ttfamily}"
+inline true
+status open
+
+\begin_layout Plain Layout
+
+stdio.h
+\end_layout
+
+\end_inset
+
+ library.
+ This means that on Linux the commands will be issued using 
+\begin_inset listings
+lstparams "basicstyle={\ttfamily}"
+inline true
+status open
+
+\begin_layout Plain Layout
+
+STDIN
+\end_layout
+
+\end_inset
+
+ and on the MCS-51 version they will be issued over a serial interface.
+ Python will be used to build a controller class for sending commands to
+ and receiving data from the emulator.
+ Python will also be used to build a text based user interface on top of
+ this.
+\end_layout
+
+\end_body
+\end_document
Binary file emu/.mem.h.swp has changed
--- a/emu/main.c	Thu Apr 17 15:50:42 2014 +0100
+++ b/emu/main.c	Fri Apr 18 18:58:58 2014 +0100
@@ -162,21 +162,22 @@
                     break;
 
                 /* get A */
-                case 0x09:
+                case 0x08:
                     snd(A);
                     break;
                 
                 /* get flags */
-                case 0x0A:
+                case 0x09:
                     snd(flags);
                     break;
                 
                 /* get instruction register */
-                case 0x0B:
+                case 0x0A:
                     snd(IR);
                     break;
                 
-                case 0x0C:
+                /* run for length */
+                case 0x0B:
                     args[0] = rcv(); /* length high */
                     args[1] = rcv(); /* length low */
                     tmpw = get_wide(PC);
@@ -188,12 +189,12 @@
                     }
                     break;
 
-                case 0x0D:
+                case 0x0C:
                     free_run = 1;
                     break;
                 
                 /* set break point */
-                case 0x0E:
+                case 0x0D:
                     args[0] = rcv(); /* bp index */
                     args[1] = rcv(); /* address high */
                     args[2] = rcv(); /* address low */
--- a/emu52/main.c	Thu Apr 17 15:50:42 2014 +0100
+++ b/emu52/main.c	Fri Apr 18 18:58:58 2014 +0100
@@ -159,21 +159,21 @@
                     break;
 
                 /* get A */
-                case 0x09:
+                case 0x08:
                     snd(A);
                     break;
                 
                 /* get flags */
-                case 0x0A:
+                case 0x09:
                     snd(flags);
                     break;
                 
                 /* get instruction register */
-                case 0x0B:
+                case 0x0A:
                     snd(IR);
                     break;
                 
-                case 0x0C:
+                case 0x0B:
                     args[0] = rcv(); /* length high */
                     args[1] = rcv(); /* length low */
                     tmpw = get_wide(PC);
@@ -185,12 +185,12 @@
                     }
                     break;
 
-                case 0x0D:
+                case 0x0C:
                     free_run = 1;
                     break;
                 
                 /* set break point */
-                case 0x0E:
+                case 0x0D:
                     args[0] = rcv(); /* bp index */
                     args[1] = rcv(); /* address high */
                     args[2] = rcv(); /* address low */