Ranjit%20S.%20Mann%20Exam%201%20CSE-670%20Day%20OF%20Week

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Ranjit S. MannExam 1CSE-670Day OF Week
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Day OF Week
int dayofweek (int year, int month, int day)
int a (14 - month)/12 int y
year - a int m month 12a -2
return (day y y/4 - y/100 y/400
(31m)/12) 7 / 0 Sunday, 1
Monday, 2 Tuesday, 3 Wednesday, 4
Thursday, 5 Friday, 6 Saturday /
Ranjit S. Mann
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DATA PATH
SW(1 to 8)
8
d1msel
yearin
demux4g
monthin
8
8
dayin
8
regb day
rega month
regc year
aload
bload
cload
rege y
regf day
fload
eload
regg mout
gload
regh month
hload
8
y
d
a (14 - month)/12
mout
(day y/4 - y/100 y/400 m) 7
a monthcalc
m
m month12a-2
8
day
8
year
8
8
month
m
dayOFweek
(31m)/12
m1sel
3 2 1 0
mux4g
mout
r
16
binbcd
Note century value is fixed at 2000
x7seg
4
Controller
Sw1 Sw8
aload
bload
cload
controller
datapath
eload
fload
gload
hload
d1msel
month
binbcd
year
day
dayOFweek
mux4g
x7seg
5
State Machine
0/1
1
0
sA
sF
Wait for BTN4 up
s3
Wait for BTN4 down yearlt SW display year
0
1
0
1
sB
Wait for BTN4 down month lt SW display month
sG
Wait for BTN4 up
1
0
1
sC
s0
Wait for BTN4 up
0
0
sD
Wait for BTN4 down day lt SW display day
display dayOFweek
a (14 - month)/12
s1
m month12a-2
1
mout (31m)/12
1
sE
s2
Wait for BTN4 up
(day y/4 - y/100 y/400 mout) 7
0