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updates architecture to current state

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Torsten Ruger
2017-09-05 20:54:28 +03:00
parent 8d239d5c07
commit df69847757
4 changed files with 212 additions and 49 deletions
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## UML and images
UML (Unified Modeling Language) diagrams are stored as originals in this folder.
They are created with [UMLet](http://www.umlet.com/) and exported as jpg.
Jpeg files are referenced from the markdown.

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<diagram program="umlet" version="14.2">
<zoom_level>10</zoom_level>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>130</y>
<w>120</w>
<h>60</h>
</coordinates>
<panel_attributes>&lt;Vool&gt;
--
Concrete Tree</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>70</y>
<w>120</w>
<h>60</h>
</coordinates>
<panel_attributes>&lt;Ruby&gt;
--
Abstract Tree</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>190</y>
<w>120</w>
<h>60</h>
</coordinates>
<panel_attributes>&lt;Mom&gt;
--
Concrete Tree
+ Linked List</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>250</y>
<w>120</w>
<h>50</h>
</coordinates>
<panel_attributes>&lt;Risc&gt;
--
Linked List</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>300</y>
<w>120</w>
<h>50</h>
</coordinates>
<panel_attributes>&lt;Arm&gt;
--
Linked List</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>60</x>
<y>350</y>
<w>120</w>
<h>50</h>
</coordinates>
<panel_attributes>&lt;Elf&gt;
--
Binary / Array</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>70</y>
<w>670</w>
<h>60</h>
</coordinates>
<panel_attributes>Ruby is parsed into and abstract syntax tree. "Abstract" means all nodes are
represented by one class. Compiling to Vool happens by visitor pattern.</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>130</y>
<w>670</w>
<h>60</h>
</coordinates>
<panel_attributes>Vool (Virtual object oriented Language) is ruby without the fluff. Just simple oo.
Vool uses a concrete syntax tree, meaning one class per kind of statement.
Code to compile to Mom is in the statement classes.
</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>190</y>
<w>670</w>
<h>60</h>
</coordinates>
<panel_attributes>Mom (Minimal object machine) is a very simple object oriented machine. It only deals in objects,
incuding the calling convention. A first pass still uses a tree structure to represent control.
The final representation is a list of instructions.</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>250</y>
<w>670</w>
<h>50</h>
</coordinates>
<panel_attributes>The Risc (reduced intruction set computer) layer is an (sane) subset of ARM. It models only those
instructions needed to implement Mom, about 20. It deals in memory, logic and jumps.</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>300</y>
<w>670</w>
<h>50</h>
</coordinates>
<panel_attributes>The arm chip is the most sold/used in the world, so it is our first "target". Arm has a simple
instruction set and we only use the part to implement what is used in Risc.</panel_attributes>
<additional_attributes/>
</element>
<element>
<id>UMLClass</id>
<coordinates>
<x>220</x>
<y>350</y>
<w>670</w>
<h>50</h>
</coordinates>
<panel_attributes>The lowest level, achieved by assembling arm instructions, is binary code that a cpu can execute.
Elf is used to wrap it into a file so Linux can start it. Elf includes debug info too.</panel_attributes>
<additional_attributes/>
</element>
</diagram>