Bµi 9
§ång xö to¸n
8087
(Co-Processor)
!"#$
%&'()*)+
, /!)*)+
"0123&
1. Giíi thiÖu
4543&6789
:;<$=>!?1@
5ABC6
(DEFG"9BC"
$2H.>!?1
@8@I"JIK
H.>!?1@IDI
L"
M@43&!/!N
!/!H.>!?1@
<OPH$Q@
$5J;RS
;"D0P6
&JQ@T3%)U$OHI43&8
929!"!BC
&J)U$O"843&;!
"V
MW X H =! )*)+ $;
)*)U
&YAZ%I+[F\]
B/!
-K@2
<
-K@2
/!
@
XH
-^!
>
DQ
&
F;00_
)*)+5µH
6
`
+
+
`
`
`
)
U
`*
**
)*))
5µH6
U**
**
U**
**
**
+**
**
`U**
***
+**
X.P
),
)*
`,
)*
%,
`*
+*
,,*
%,
+*
2. C¸c kiÓu d÷ liÖu ®ång xö lý
to¸n.
?H.>!?1@abbb
-D0`)*CcQabbbdS;
?QeH.N
?abbbIH.Nf>!@2
E
X.$@2<
X.$@2/!
F1d012I"f
faM[Iag$;["HhOKg
?;1
Q@$iaX_HR
?>!?1@abbb
jX.abbb>!?1@2
<
X.>!?1@2<H
RQQeH.N5H.
K0$;H.8<6
kW"==!KE
lU
≤3≤
m)
kW"= !!KE
I*
l)
≤3≤I%*
m)
&V:EX.Nn
Xn!S!Q
M Xn!S!
M>E*lH.8<IlH.
K0
l* BP0_
l* BP !!K5=
"=6
XX.0_BP="=
*
*
kW"=E I)*
l)
≤3≤
I%**
)
lU
≤3≤
)
F#,5T2R$OH.$>!?1.=^
H.o$;H.G9!5pXB,Uk["6
,, %) %+ % *
* * * * * *
[q"@>p> -@(
l*IU, EX. !!K
**** E[dQr
**** E[d"NS!
,, %) %+ % *
* * * * * * *
p>BP1V BP !!K
-@(
lIU, EX. !!K
***** E[dQr
********** E[d"NS!
Q81H.NH>!?1
@
X.N891;H.=
!K
X.=!K89Qe8^
:3333bssss
Mf"=t;*uH.8
<It;uH.K0
% BPH.0_ssss89@V0v
H.+AF2H.0_<Hq$;89
qQl*
, BP="=333389qQ
l*
wET@V0"=+AFq
!P0_;v0<WS
SIW0H."HH"Q@
T2RE
1H.`I+,
*
;H.>!?1@
2<5H.Nn6
WE
`I+,pZ**IMZI**b
MEZ*5X.8<6
M*lE******H.0_
5m+AFZ)F6
Ml*E************lBP
="=
3S!rE
***********************
****
%***
*
k0"^Qv9!
T2RE
1H.l`U+
*
;H.2
<AB
WE
`UI+p
Z*****I*********M
ZI**************bU
M> EMQv;H.K0
X.0_ EQ*lQv*****
5Um+FAZ),F6
p8^=!K$;FgE
******************
*
*)x
p
X. > !?1 @ abbb 2
/!
X.>!?1@2
/!789:;H.N;
MeH.K0$;8<"
W*
l*)
≤3≤SI+*
m*)
&'@U%Q
MUEM>
MUl,5Q6EBP0_
M,l*5,Q6EBP="=
XX.0_BP="=
UU,,
*
kW"=EI*
l*)
≤3≤I+`*
*)
1H^H.2/!
Q810@H.H^
H.2/!_8<N8
$H.2<
X.N89Qe8^
=!K:
3333333bssss
X.0_ssss89@V0AAF
=H.0_<Hq
T2RE
1'H.,)+,
*
;H.2
/!
WE
,)+,pZ*******MZ******
*b+
MUZ*lX.8<
MUl,Z********5+mAAFZ%*UF6
M,l*Z*************
*************************
**** %*U
*U***
f0"^Qv9!
^)*)+
X.1VEFG"9H.UI$;U%
QIH.;18<($H.1V
^JI^n$;^;
X.NEM'HV0)*
QIf;H. !!K/5Bg
pg06$;H.N^0Y5&g0!""1
ig6
X. !!K/f)H.MpS0
+Q25)%Z+6JQ+l*M+l+)Z*
Q+`(>
X.N^0Y89)*)+HR@
Q@
j^
4@; kW"=
y"gg" U l+U)≤3≤m+U)
X"agg" l*
`
≤3≤m*
`
agg" U% l`*
)
≤3≤m`*
)
Bgpg0 )* l````≤3≤m````5)
H.Mp6
Xgig )*
l)
≤3≤%**
)
pQgig U% I*
l*)
≤3≤I+`*
*)
&g0!""1 ig )* I+*
l
%`
≤3≤I)*
%`
X4@
,*
X.1V
X. !!K/
X 3 4@p+lp*
+`+)++
*
XX.0_aBP="=
+`+)U%UU
*
X.N^0Y
X
X.0_
BP="=
UU,, *
X.N;
X
X.0_
BP="=
* *
X.Nn
X4@
*
X.1Vn
X
BP="=
UU*
X.1V;
F#^)*)+
3. lËp tr×nh víi ®ång xö lý
to¸n
ë01)U$O"8IPf
Q@43E)*)+I)*)+I)*)+
t8<8<
&J%)U$OHI43892
9!Hz"BCT%)UX3
7{fQ@
%)+X3
u | = } ^
)*)+
py5pghg~"lX.UQ6
pp5pghgQg~"lQ6lJ/!IQ
eE
X.Nn5@2<6
X.1Vn
p• 5pghg € ~"lU% Q6 J Q.I Q–
eE
X.N;5@2/!6
X.1V;
p&5pghggQ1gl)*Q6 Q1g08YIQ–
eE
X. !!K/
X.N^0Y
&D)*)+
)*)+f)D)*
Q
;0$80@
DS!lg1VnaA•
)89H.J*
+
4uDS!LX&5*6
7^89H.
($$="2H$uDS!
p !H‚N@1
H^)*Q
&"8Y
&"8Yo
+`+)U%U*
*
XƒJ4="=
i*
i
i
i
i%
i,
iU
i+
&"^$;O
,*%+
*
&O"{
&"^"{
&Jo
j&'()*)+
[@H.t0 !"#
&V)*)+LQnP
QvA!KQ$
Q@$)*)U
)*)+q^uDS!
L;H.+
&X&5*6L"{S
uDS!
%X&5*6;uDS!IX&56;
SS!IX&56;
(JX&