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content/notes/05-6809-assembly.md

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+---
+title: "05-6809-assembly"
+aliases: 
+tags: 
+- lecture
+- cosc204
+---
+
+
+# Warnings
+- different CPU architectures have their own machine codes and their own assembly languages
+- assembly language programs are **not** portable across CPU architectures (e.g., 6809 to x86 ARM) but are often backwards compatible (e.g., x86_64 family)
+
+# Working up
+- High level languages
+	- Compiler
+- Assembly language
+	- Assembler
+- Machine code
+	- Instruction Set
+- Hardware