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Modulo 3
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Modulo 3 (Modulo 3)
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lOMoARcPSD|10192405Modulo 3
Estructura de computadors (Universitat Oberta de Catalunya)
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El procesador
Miquel Albert Orenga
Gerard Enrique Manonellas
PID_00218265
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CC-BY-SA • PID_00218265 El procesador
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siempre que la obra derivada quede sujeta a la misma licencia que el material original. La licencia completa se puede consultar en:
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Índice
Introducción............................................................................................... 5
Objetivos....................................................................................................... 6
1. Organización del procesador.......................................................... 7
2. Ciclo de ejecución de las instrucciones........................................ 9
2.1. Segmentación de las instrucciones ............................................. 11
3. Registros............................................................................................... 14
3.1. Registros de propósito general .................................................... 14
3.2. Registros de instrucción .............................................................. 15
3.3. Registros de acceso a memoria ................................................... 15
3.4. Registros de estado y de control ................................................. 15
4. Unidad aritmética y lógica............................................................. 17
5. Unidad de control.............................................................................. 20
5.1. Microoperaciones ........................................................................ 20
5.1.1. Tipos de microoperaciones ............................................ 21
5.1.2. Ciclo de ejecución ......................................................... 21
5.2. Señales de control y temporización ............................................ 25
5.3. Unidad de control cableada ........................................................ 27
5.3.1. Organización de la unidad de control cableada ............ 27
5.4. Unidad de control microprogramada ......................................... 29
5.4.1. Microinstrucciones ......................................................... 30
5.4.2. Organización de una unidad de control
microprogramada ........................................................... 31
5.4.3. Funcionamiento de la unidad de control
microprogramada ........................................................... 33
5.5. Comparación: unidad de control microprogramada y
cableada ....................................................................................... 36
6. Computadores CISC y RISC............................................................. 38
Resumen....................................................................................................... 40
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