Hardwired Implementation-Assembly Language, Microprocessors and Computer Architecture-Lecture Slides, Slides of Computer Architecture and Organization

Assembly language is about computer basic operations. Its used in Computer Architecture. It also being used in Microprocessors. This lecture was delivered by Prof. Vishakha Ahuja at Guru Ghasidas University. It includes: Hardwired, Implementation, Unit, Inputs, Flags, Unique, Binary, Propagation, Sequencing, Inflexible, Decoder

Typology: Slides

2011/2012

Uploaded on 08/03/2012

amritkala
amritkala 🇮🇳

4.4

(17)

91 documents

1 / 6

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Hardwired Implementation
zControl unit inputs
zFlags and control bus
zEach bit means something
zInstruction register
zOp-code causes different control signals for
each different instruction
zUnique logic for each op-code
zDecoder takes encoded input and produces
single output
zn binary inputs and 2n outputs
docsity.com
pf3
pf4
pf5

Partial preview of the text

Download Hardwired Implementation-Assembly Language, Microprocessors and Computer Architecture-Lecture Slides and more Slides Computer Architecture and Organization in PDF only on Docsity!

Hardwired Implementation z

Control unit inputs

z

Flags and control bus z

Each bit means something z

Instruction register z

Op-code causes different control signals foreach different instruction z Unique logic for each op-code z Decoder takes encoded input and producessingle output z n binary inputs and 2 n outputs

Hardwired Implementation (Cont) z

Clock z

Repetitive sequence of pulses z Useful for measuring duration of micro-ops z Must be long enough to allow signalpropagation z Different control signals at different timeswithin instruction cycle z Need a counter with different control signalsfor t1, t2 etc.

Example Hardwired CU

Problems With Hard WiredDesigns z

Complex sequencing & micro-operationlogic

z

Difficult to design and test

z

Inflexible design

z

Difficult to add new instructions