P1p;
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N(The remainder of this file contains graphics code.)
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N()
N(Please $Set Terminal/NOwrap before typing this file.)
N(Source:  DECslide 1.3 EXPORT FILE)
N(Export file:  P2 )
N(Comment:  why plas)
N(Creation Date:  25-SEP-1986 14:49:14.62)
N(Description file: )
N()
\

[2J[?5l[?7l[22;1H
P1p;
@.L(A2)"A"AA55AA55AA55AA55AA55"S"FFFFFFFFFFFFFFFFFFFF"B"00"C"88008800880088008800"D"8142241818244281"U"8142241881422418"F"FF818181FF818181FF"G"80402010080402018040"H"11224488112244881122"V"01020408102040800102
"J"81818181818181818181
N(End of terminal initialization.)
;s(A[0,479][767,0])
;S(C1)W(V,I(W),F3,M1,N0,P(M2),S0,P1)T[+9,+0](S1,H2,S[9,20]M[1,2],D0,I0)s(m0(l0)(aH300L20S100)1(l35)(aH180L60S100)2(l65)(aH120L20S100)3(l100)(aH0L100S0))
S(I2,E)
P[384,252]
@:ZW(P1)
T[+18,+0](I0)(S[18,50]M[2,5])
P(B)
P[-216,+25]
T" Why use PLAS directives?"
P(E)
W(P1)
@;
W(F3,I3,V)P[380,427]@ZW(S0,R)
@:ZW(P1)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,+150]
T"  The use of PLAS (Programmed Logical Address Space) directives"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,+120]
T" can be  useful when  transporting an application from a system"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,+90]
T" with a larger address space (ie, VAX). By proper design of the"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,+60]
T" application, direct references to a large address space can be"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,+30]
T" replaced with calls to a memory manager that can remap address"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288]
T" windows in a large dynamic region."
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,-30]
T" Other uses include maintaining large buffer pools for optimizing"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,-60]
T" disk performance in the application (ie, BACKUP), and using map-"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,-90]
T" ping directives to access physical memory directly (ie,  map and"
P(E)
T[+9,+0](I0)(S[9,30]M[1,3])
P(B)
P[-288,-120]
T" read executive data structures)."
P(E)
W(P1)
@;
W(F3,I1,V)P[358,207]@ZW(S0,R)
P[384,252]
s(A[0,0][767,479])s(I(D),S1,T0)T[+9,+0](S1,H2,S[9,20],M[1,2],D0,I0,A0)W(V,I(W),F3,M1,N0,P1,P(M2),S0)


N(		END OF DECslide V1.3 EXPORT FILE)
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