7/25/2019 TCB1043_LectW10 - Basic Microprocessor

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Saipunidzam Mahamad @ Computer Organization

TCB1043

COMPUTER ORGANISATION

Basic Microprocessor System

7/25/2019 TCB1043_LectW10 - Basic Microprocessor

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Saipunidzam Mahamad @ Computer Organization

Leari! Topics

" Litt#e Ma Comp$ter

" T%e &etc%'E(ec$te) Cyc#e

" T%e LMC istr$ctio Set

" T%e LMC a) t%e *o Ne+ma arc%itect$re

" Comp$ter B$ses, 1-s a) 0-s coti$o$s#y ot%e mo*e

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Saipunidzam Mahamad @ Computer Organization

T%e Litt#e Ma Comp$ter ' LMC

" .ie+ o/ LMC

%at it is Create) 2y r St$art

Ma)ic5 1678 o/ MIT A a#most acc$rate

represetatio o/ t%e+or5i! o/ a comp$ter

E*e a/ter 38 years o/

Comp$ter Io*atio

a) Creatio T%e LMC

arc%itect$re is at t%e

%eart o/ to)ay-s

comp$ter )esi!

7/25/2019 TCB1043_LectW10 - Basic Microprocessor

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Saipunidzam Mahamad @ Computer Organization

T%e Litt#e Ma Comp$ter ' LMC

" %at are its compoet A post room (ot too )$sty)

A little man (p%ysica##y /it99)

A mailbox with many (100) pigeon holesnumbered from 00 to 99

A calculator (/or simp#e arit%metic operatios)

A counter

A input booth (to iteract +it% t%e o$tsi)e +or#))

A output booth (to iteract +it% t%e o$tsi)e+or#))

7/25/2019 TCB1043_LectW10 - Basic Microprocessor

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Saipunidzam Mahamad @ Computer Organization

T%e Litt#e Ma Comp$ter ' LMC

" %at )oes t%e #itt#e ma )o Tras/er or mo*e i/ormatio /rom oe part o/ t%e

post room to aot%er

Iterpret :or )eco)e; a) Carry o$t istr$ctios t%at

i*o#*e mo*emet o/ i/ormatio or )ata

Coti$o$s#y o t%e #oo5o$t /or e+ istr$ctios

" The little man must be very fit to do allthis running about !!!

7/25/2019 TCB1043_LectW10 - Basic Microprocessor

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Saipunidzam Mahamad @ Computer Organization

T%e Litt#e Ma Comp$ter ' LMC

" %at are t%e pi!eo %o#es o/ t%e mai#2o( $se)

/or A pi!eo %o#e cotais NOT #etters< 2$t istr$ctio s#ips

Eac% pi!eo %o#e cotais oe a) o#y oe istr$ctio

s#ip at a time

Some pi!eo %o#es may cotai )ata :ie simp#e

$m2ers; t%at )oes ot represet istr$ctios

Eac% Pi!eo %o#e %as a $i=$e #a2e# :ca##e) a a))ress;

t%at is a $m2er /rom 00 to 66 Address Content

7/25/2019 TCB1043_LectW10 - Basic Microprocessor

7/40Saipunidzam Mahamad @ Computer Organization

T%e Litt#e Ma Comp$ter ' LMC

" %at )oes ca#c$#ator )o

Some istr$ctios i*o#*e arit%metic ca#c$#atios #i5e a))itio