neander

Final project of Digital Systems - a simple, theoric computer.

Purpouse

• Computer Architecture inspired in IAS Computer from Von Neumann
• "It is too simple that you, without much work, can program it and project it"

Von Neumann Architecture

• Without in and out
• Memory and CPU only
• The data and the controll signals is in the same architecture

General Work

• Control Unit catch the instruction
• Decodify it
• Activate Control Signals
  • Activate memory search
  • Activate Logic Arithmetic Unit

Data Type

• 1 int data (1 byte)
• 2's complement

CU - control unity

• automatization of Neander
• need a counter
• it is a combinational system!!!!!
• all execute same time, decod says which will be the output
• every time that you touch a registrator, it is a clock cycle
• just increment PC after RdM
• add or and not is the same with a mux controling ula op

// no pc de verdade, acontece a busca com o endereço de memória da linguagem? // o valor das instruções tb vai para a ula?