CPS 310 Lecture Notes - Ryerson University, Directinput

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RYERSON UNIVERSITY
DEPARTMENT OF COMPUTER SCIENCE
CPS310 – COMPUTER ORGANIZATION II
Winter 2013
Lab # 1
[3Marks]
Youaretoconstruct,test,andsimulatea4bitsectionofaCPUasshowninFigure1.
Note:MultimediaLogicisconsideredforthesimulationandisavailableat:www.softronix.com
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

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Figure1:4bitsectionofaCPUarchitecture.
Figure1omitsalotofdetails,includingalmostallthecontrolsignals.Youarerequiredto
determinethesecontrolsignalsaswellasthedatalinesshown.InarealCPU,instruction
decodingcircuitrywouldnormallybeusedtogeneratethecontrolsignalsautomatically.To
simplifythislab,however,youshouldgenerateallofthecontrolsignalson/offswitches
controlledmanually.AlsoemploythefollowingsformonitoringandprovidinginputstotheBUS
line.
HexKeypadtoprovidedatafrom0toFtotheBUSlines.
8segmentLEDdisplaystomonitortheinput/outputvaluesin/fromallregistersinyour
CPUdesign.
Z
in
B
A
DATABus
Y
ADD
XOR
ALU
Z
Y
in
Z
out
R0
R1
R0
in
R0
out
R1
in
R1
out
XIn
p
ut
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