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<h1>Architecture Logicielle et Matérielle des Ordinateurs v2 (ALMO2)</h1>
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= Planning

- This module will open in september, 2020.

= Module purposes

- The purpose of this module is to explain in detail how it is possible to have several programs running independently on a multicore computer.

- The module introduces progressively:
  - the main hardware components;
  - and the corresponding operating system services.

- The studied hardware architecture is simulated by using a cycle-and-bit-accurate model, able to execute the software from the true beginning (full system emulation).

- There is one practical work per week:
  - The really first code is a simple assembler program which print "hello Word!" on the terminal without any operating system or even any function libraries.
  - The last one is composed of two programs running independently on the same processeur by using virtual memory.

- The module must answer the following questions (this is non-exhaustive list):
   - How does a machine start?
   - What is the role of an operating system and what services does it offer?
   - What is a memory cache?
   - What is a device controller, and how to use it?
   - What is a device driver?
   - How to run multiple programs on a single processor?
   - How can multiple processors share the same address space?
   - Why should each program have its own address space and how?
- and finally:
   * When you hit a key on the keyboard, how does the character appear on the screen?

= Prerequisites

* A good knowledge of the C language is necessary since the module proposes to write an operating system from the beginning.
* The knowledge of the MIPS32 assembler is also important, but the principles of this language and the conventions of use for writing functions are recalled the first week.

= Course plan

  1. '''[wiki:S01 Assembler programming on a minimal machine]''' [[BR]]
     The purpose of this first session is to present a minimal architecture and how
     write a first program in assembly language.

= Documents