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‎10_CPU_Basis.md‎

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<!--
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author: Sebastian Zug & André Dietrich & Fabian Bär
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email: sebastian.zug@informatik.tu-freiberg.de & andre.dietrich@informatik.tu-freiberg.de & fabian.baer@student.tu-freiberg.de
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version: 0.0.2
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language: de
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narrator: Deutsch Female
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import: https://raw.githubusercontent.com/liascript-templates/plantUML/master/README.md
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-->
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# Rechnerarithmetik
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**TU Bergakademie Freiberg - Wintersemester 2020 / 21**
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Link auf die aktuelle Vorlesung im Versionsmanagementsystem GitHub
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[https://github.com/TUBAF-IfI-LiaScript/VL_EingebetteteSysteme/blob/09_Rechnerarithmetik](https://github.com/TUBAF-IfI-LiaScript/VL_EingebetteteSysteme/blob/master/09_Rechnerarithmetik.md)
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Die interaktive Form ist unter [diesem Link](https://liascript.github.io/course/?https://raw.githubusercontent.com/TUBAF-IfI-LiaScript/VL_EingebetteteSysteme/master/09_Rechnerarithmetik.md#1) zu finden
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## Hypothetische ALU mit 8 Funktionen
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```text @plantUML
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@startuml
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ditaa
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Daten Daten
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| |
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| |
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+--------------|---------------+ |
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| +------+ | | |
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| | | | : | Funktionsauswahl
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| | V V V V |||
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| | +----+-----+-----+ +----+-----+-----+ |||
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| | |cBFB Register A | |cBFB Register B | ||| Registerauswahl
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| | +---+------------+ +---------+------+ ||| |
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| | | | ||| |
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| | | +------------------+ ||| |
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| | | | | ||| |
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| | +--------+-----------+ | ||| |
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| | | | | | ||| |
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| | V V V V ||| |
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| | +----------------+ +----------------+ ||| |
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| | |c808 |<- |c808 |<--+|| |
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| | | Multiplexer |<- | Multiplexer |<---+| |
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| | | |<- | |<----+ |
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| | ++-+-+-+-+-+-+-+-+ ++-+-+-+-+-+-+-+-+ |
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| | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | V V V V V V V V |
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| | | | | | | | | +----------------------------------+ |
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| | | | | | | | +-----------------------------+ | |
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| | | | | | | +------------------------+ | | |
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| | | | | | +-------------------+ | | | |
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| | | | | +--------------+ | | | | |
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| | | | +---------+ | | | | | |
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| | | +----+ | | | | | | |
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| | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | |
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| | V V V V V V V V V V V V V V V V |
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| | +----+ +----+ +----+ +----+ +----+ +----+ +----+ +----+ |
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| | | 000| | 001| | 010| | 011| | 100| | 101| | 110| | 111| |
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| | |cFF4| |cFF4| |cFF4| |cFF4| |cFF4| |cFF4| |cFF4| |cFF4| |
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| | | OR | |AND | |EXOR| |ADD | |SUB | |MUL | |DIV | | SL | |
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| | +-+--+ +-+--+ +-+--+ +-+--+ +-+--+ +-+--+ +-+--+ +-+--+ |
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| | : : : : : : : : |
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| | +------+------+------+---+--+------+------+------+ |
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| | | |
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| | V |
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| | +----------+----------+ |
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| | |cCCB DeMuxer/Selektor|<-----------------+
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| | +---+-+---------------+
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| | : :
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| +---------------------+ |
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| |
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+-------------------------+
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@enduml
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```
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@plantUML
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Abstrakte Darstellung
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```text @plantUML
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@startuml
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ditaa
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+-----+-----+
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| A | B |
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Daten +-----+-----+
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<--------->+cFF4 |
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| |
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Kontrolle | ALU |
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---------->+ |
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| |
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Status | |
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<----------+ |
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+-----------+
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@enduml
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```
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@plantUML
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## Herausforderung Datenzugriff
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c44F |
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| Speicher |
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| |
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+-----------+------+
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^ |
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| |
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+----------+ Adresse | | +-----+-----+
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|cF88 +-----------+ | | A | B |
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| | | Daten +-----+-----+
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| | | <--------->+cFF4 |
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| Steuer- | | | |
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| werk | | Kontrolle | ALU |
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| | +-------------->+ |
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| | | |
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+----------+ +-----------+
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@enduml
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```
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@plantUML
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c44F |
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| Speicher |
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| |
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+---------+-+------+
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^ | ^
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| | |
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+----------+ Adresse | | | +-----+-----+
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|cF88 +-----------+ | | | A | B |
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| | | | Daten +-----+-----+
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| | Befehl | +-------------->+cFF4 |
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| Steuer- |<------------+ | |
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| werk | Kontrolle | ALU |
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| +------------------------------>+ |
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| | | |
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| | Status | |
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| |<------------------------------+ |
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+----------+ +-----------+
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@enduml
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```
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@plantUML
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c88F |
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| Speicher |
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| |
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+---------+-+------+
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^ | ^
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| | |
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+----------+ Adresse | | | +-----+-----+
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|cF88 +-----------+ | | | A | B |
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| | | | Daten +-----+-----+
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| | Befehl | +-------------->+cFF4 |
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| Steuer- |<------------+ | |
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| werk | Kontrolle | ALU |
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| +------------------------------>+ |
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| | | |
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| | Status | |
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| |<------------------------------+ |
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| | | |
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| | Kontrolle | |
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| +-------------+ Daten | |
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| | | +-------------->| |
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| | Status | | | |
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| |<----------+ | | | |
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+----------+ | | | +-----------+
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| | |
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| V V
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+-------+-----------+
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|c8F8 |
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| Ein/Ausgabe |
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| |
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+-------------------+
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@enduml
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```
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@plantUML
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## 1945: Von-Neumann Architektur
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```text @plantUML
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@startuml
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ditaa
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^ |
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| V
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+-+----+ +----------------------------+
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|c8F8 | |c88F Speicherwerk |
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| |<-->| +--------+ +--------+ |
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| | | |Programm| | Daten | |
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| | | +--------+ +--------+ |
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| | +------+---------------------+
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| | ^ | ^
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| E/A- | : | |
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| Werk | | V V
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| | +---+------+ +------------+
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| | |cF88 | | Rechenwerk |
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| | | | |cFF4 |
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| | | |<-=-+ +--------+ |
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| |<-=-+Steuerwerk| | |Register| |
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| | | +-=->| +--------+ |
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| | | | | | ALU | |
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| | | | | +--------+ |
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+------+ +----------+ +------------+
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@enduml
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```
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@plantUML

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