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|
subroutine matimp
c ====================================================================
c impl dassl dasrt : simulation de systeme algebrico-differentiel
c ====================================================================
c Copyright INRIA
INCLUDE '../stack.h'
c impl dassl dasrt
c 1 2 3
if (ddt .eq. 4) then
write(buf(1:4),'(i4)') fin
call basout(io,wte,' matimp '//buf(1:4))
endif
c
goto(10,100,1000) fin
return
c impl part
10 call sciimpl("impl")
return
100 call dassli("dassl")
return
1000 call dasrti("dasrt")
return
end
subroutine sciimpl(fname)
c ==================================================
INCLUDE '../stack.h'
c
character*(*) fname
integer iadr,sadr
c
double precision atol,rtol,t0,t1
integer topk,topw
logical jaco,achaud
external bresid,badd,bj2
external fres,fadda,fj2
integer gettype
logical getexternal,getrvect,vcopyobj
logical checkrhs,checklhs,getrmat,cremat,getscalar
logical typej,typea,typer,getsmat,vectsize
character*(nlgh+1) namres,namadd,namjac
character*1 strf
common/cjac/namjac
external setfres,setfadda,setfj2
common/ierode/iero
c
data atol/1.d-7/,rtol/1.d-9/
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
if (.not.checkrhs(fname,6,10)) return
C XXXXXX : pour l'instant
if (.not.checklhs(fname,1,3)) return
c ---------------------------------
iero=0
topk=top
topw=top+1
iskip=1
mf=20
c first argument (check for string )
c ----------------------------
if(gettype(topk-rhs+1).eq.10) then
iskip=0
if(.not.getsmat(fname,topk,topk-rhs+1,
$ m1,n1,1,1,lr1,nlr1))return
call cvstr(1,istk(lr1),strf,1)
if ( strf.eq.'a') mf = 10
if ( strf.eq.'s') mf = 20
if(strf.ne.'a'.and.strf.ne.'s') then
call error(42)
return
endif
endif
c Initial condition : y0 arg 2 - iskip
c -------------------
kynew=topk-rhs+2-iskip
if(.not.getrvect(fname,topk,kynew,ny,my,ly))return
neq=ny*my
c
c Initial derivative condition : y0dot arg 3 - iskip
c -------------------
kydtop=topk-rhs+3-iskip
if(.not.getrvect(fname,topk,kydtop,nyd,myd,lyd))return
if(.not.vectsize(fname,topk,kydtop,ny*my)) return
c t0 arg 4 - iskip
c ----------------------------
kttop=topk-rhs+4-iskip
if(.not.getscalar(fname,topk,kttop,lr4))return
t0=stk(lr4)
c t1 arg 5 - iskip
c ---------------------------
kt1=topk-rhs+5-iskip
if(.not.getrmat(fname,topk,kt1,m5,n5,lt5))return
nn=m5*n5
c checking variable rtol (number 6 - iskip)
c -----------------------------------
itype = gettype(topk-rhs+6-iskip)
if ( itype .ne. 1) then
if (.not.cremat(fname,topw,0,1,1,latol,lc)) return
topw=topw+1
if (.not.cremat(fname,topw,0,1,1,lrtol,lc)) return
topw=topw+1
stk(latol)=atol
stk(lrtol)=rtol
na=1
nr=1
iskip = iskip+2
goto 11105
endif
kr=top-rhs+6-iskip
if(.not.getrvect(fname,topk,kr,m6,n6,lrtol))return
nr = m6*n6
if(nr.ne.1.and.nr.ne.neq) then
err= 6-iskip
call error(89)
return
endif
c checking variable rtol (number 7 - iskip )
c --------------------------------
itype = gettype(topk-rhs+7-iskip)
if (itype .ne. 1) then
if (.not.cremat(fname,topw,0,1,1,lrtol,lc)) return
topw=topw+1
stk(lrtol)=rtol
nr=1
iskip = iskip +1
goto 11105
endif
kr= top-rhs+7-iskip
if(.not.getrvect(fname,topk,kr,m7,n7,latol))return
na = m7*n7
if(na.ne.1.and.na.ne.neq) then
err= 7-iskip
call error(89)
return
endif
c ----------------------------------
11105 if(nr.eq.1.and.na.eq.1) itol=1
if(nr.eq.1.and.na.gt.1) itol=2
if(nr.gt.1.and.na.eq.1) itol=3
if(nr.gt.1.and.na.gt.1) itol=4
c les externaux : res,adda et jac
c -----------------------------------
c checking variable res (number 8 - iskip )
kres=topk-rhs+8-iskip
typer=.false.
if (.not.getexternal(fname,topk,kres,namres,typer,
$ setfres)) return
c checking variable number 9 - iskip
c -----------------------------
kadd=topk-rhs+9-iskip
if (.not.getexternal(fname,topk,kadd,namadd,typea,
$ setfadda)) return
if ( typea.neqv.typer) then
buf = fname // ': res and adda must have same type '
call error(999)
endif
c checking variable number 10 - iskip
c -----------------------------
achaud=gettype(topk).eq.1
kjac=topk-rhs+10-iskip
if ( kjac.eq.topk.or.(achaud.and.kjac.eq.topk-2)) then
if (.not.getexternal(fname,topk,kjac,namjac,typej,
$ setfj2)) return
mf = mf+1
jaco=.true.
else
jaco=.false.
typej=.false.
mf = mf + 2
endif
c other parameters
c -----------------
itask=1
istate=1
iopt=0
c hot restart case
c hot restart is detected when last argument is a matrix
c ---------------------
C space for result
if(.not.cremat(fname,topw,0,neq,nn,lres,lc)) return
kresu=topw
topw=topw+1
nsizd=219
nsizi=41
if(achaud) then
c iwork
if (.not.vcopyobj(fname,topk,topw)) return
topw=topw+1
if(.not.getrmat(fname,topk,topw-1,ml,nl,lci))return
liwp= ml*nl
ilc=iadr(lci)
do 400 k= liwp -nsizi+1 , liwp
write(06,*) k,'avant sauv iw',stk(lci+k-1)
400 continue
c rwork
if (.not.vcopyobj(fname,topk-1,topw)) return
topw=topw+1
if(.not.getrmat(fname,topk,topw-1,ml,nl,lrwp))return
ilrw = ml*nl
istate=2
c restauration des commons
lsavs=lrwp+ilrw- nsizd
lsavi=lci+liwp- nsizi
liwp1=liwp- nsizi
call rscom1(stk(lsavs),stk(lsavi))
c restauration du tableau entier
c the end was used to restore the common
do 40 k=1,liwp
istk(ilc+k-1)=int(stk(lci+k-1))
40 continue
else
c ----create Work space
ilrw=0
if(mf.gt.10) ilrw=22+16*neq+neq*neq
if(mf.gt.20) ilrw=22+9*neq+neq*neq
liwp=20+neq
if(lhs.gt.1) then
ilrw=ilrw+nsizd
liwp=liwp+nsizi
endif
if(.not.cremat(fname,topw,0,1,liwp,li,lc)) return
topw=topw+1
ilc=iadr(li)
do 1 k=1,liwp
istk(ilc+k-1) =0
1 continue
if(.not.cremat(fname,topw,0,1,ilrw,lrwp,lc)) return
do 11 k=1,liwp
stk(lrwp+k-1) =0
11 continue
topw=topw+1
endif
if(jaco) then
top=topw
lw=lstk(top)
ilw1=iadr(lw)
istk(ilw1)=3
istk(ilw1+1)=ilw1+4
istk(ilw1+2)=ilw1+8
istk(ilw1+3)=ilw1+12
istk(ilw1+4)=kres
istk(ilw1+5)=kttop
istk(ilw1+6)=kynew
istk(ilw1+7)=kydtop
istk(ilw1+8)=kadd
istk(ilw1+9)=kttop
istk(ilw1+10)=kynew
istk(ilw1+11)=kydtop
istk(ilw1+12)=kjac
istk(ilw1+13)=kttop
istk(ilw1+14)=kynew
istk(ilw1+15)=kydtop
lstk(top+1)=sadr(ilw1+17)
else
top=topw
lw=lstk(top)
ilw1=iadr(lw)
istk(ilw1)=2
istk(ilw1+1)=ilw1+3
istk(ilw1+2)=ilw1+7
istk(ilw1+3)=kres
istk(ilw1+4)=kttop
istk(ilw1+5)=kynew
istk(ilw1+6)=kydtop
istk(ilw1+7)=kadd
istk(ilw1+8)=kttop
istk(ilw1+9)=kynew
istk(ilw1+10)=kydtop
lstk(top+1)=sadr(ilw1+11)
endif
c
call xsetf(1)
call xsetun(wte)
c
c appel de l'integrateur
do 50 k=1,nn
t1=stk(lt5 +k-1)
c test sur le type des fonctions fournies
if(typea) then
if(typej) then
c f fortran j fortran
call lsodi(fres,fadda,fj2,neq,stk(ly),stk(lyd),t0,t1,
1 itol,stk(lrtol),stk(latol),itask,istate,iopt,
2 stk(lrwp),ilrw,istk(ilc),liwp,mf)
else
c f fortran j macro
call lsodi(fres,fadda,bj2,neq,stk(ly),stk(lyd),t0,t1,
1 itol,stk(lrtol),stk(latol),itask,istate,iopt,
2 stk(lrwp),ilrw,istk(ilc),liwp,mf)
endif
else
if(typej) then
c f macro j fortran
call lsodi(bresid,badd,fj2,neq,stk(ly),stk(lyd),t0,t1,
1 itol,stk(lrtol),stk(latol),itask,istate,iopt,
2 stk(lrwp),ilrw,istk(ilc),liwp,mf)
else
c f macro j macro
call lsodi(bresid,badd,bj2,neq,stk(ly),stk(lyd),t0,t1,
1 itol,stk(lrtol),stk(latol),itask,istate,iopt,
2 stk(lrwp),ilrw,istk(ilc),liwp,mf)
endif
endif
if(err.gt.0) return
if(istate.lt.0) then
call error(24)
return
endif
call unsfdcopy(neq,stk(ly),1,stk(lres+(k-1)*neq),1)
50 continue
top= topk-rhs+1
call copyobj(fname,kresu,topk-rhs+1)
if(lhs.eq.1) return
c w
if (lhs.ne.3) then
buf = fname // ' lhs can only be 1 or 2 '
call error(999)
endif
top=top+1
if (.not.cremat(fname,top,0,1,ilrw,lr,lc)) return
call unsfdcopy(ilrw-nsizd,stk(lrwp),1,stk(lr),1)
lsvs=lr+ilrw-nsizd
c iw
top=top+1
if (.not.cremat(fname,top,0,1,liwp,lr,lc)) return
do 60 k=1,liwp-nsizi
stk(lr+k-1)=dble(istk(ilc+k-1))
60 continue
lsvi=lr+liwp-nsizi
call svcom1(stk(lsvs),stk(lsvi))
return
end
subroutine dassli(fname)
character*(*) fname
c ============================================
INCLUDE '../stack.h'
c
integer iadr,sadr
integer topk,topw, info(15),gettype
logical hotstart,getexternal,getrvect,type
logical checkrhs,checklhs,getrmat,cremat,getscalar
double precision tout,tstop,maxstep,stepin
double precision atol,rtol,t0
character*(nlgh+1) namer,namej,names
character*(nlgh+1) namjac
external bresd,bjacd
external setfresd,setfjacd
integer setslatecjmp
external setslatecjmp
common /dassln/ namer,namej,names
common/ierode/iero
common/cjac/namjac
c
data atol/1.d-7/,rtol/1.d-9/
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
c SCILAB function : dassl
c --------------------------
c [y0 [,hotdata]]=dassl(y0,t0,t1 [,atol,rtol],res [,jac],info..
c [,hotdata])
iero=0
maxord=5
lbuf = 1
topk=top
topw=top+1
lw = lstk(topw)
l0 = lstk(top+1-rhs)
if (.not.checkrhs(fname,4,9)) return
if (.not.checklhs(fname,1,2)) return
c checking variable y0 (number 1)
c -------------------------------
ky=top-rhs+1
if(.not.getrmat(fname,topk,ky,n1,m1,l1))return
neq=n1
lydot=l1+n1
info(11)=0
if (m1 .eq.1) then
if (.not.cremat(fname,topw,0,n1,1,lydot,lc)) return
topw=topw+1
info(11)=1
call dset(n1,0.0d0,stk(lydot),1)
elseif(m1.ne.2) then
err = 1
call error(89)
return
else
il1 = iadr(lstk(top-rhs+1))
istk(il1+2)=1
endif
c checking variable t0 (number 2)
c -------------------------------
kt0=top-rhs+2
if(.not.getscalar(fname,topk,kt0,lr2))return
t0=stk(lr2)
c checking variable t1 (number 3)
c -------------------------------
if(.not.getrmat(fname,topk,top-rhs+3,m3,n3,l3))return
nt=m3*n3
c
c checking variable atol (number 4)
c -------------------------------
iskip=0
itype = gettype(top-rhs+4)
if ( itype .ne. 1) then
if (.not.cremat(fname,topw,0,1,1,latol,lc)) return
topw=topw+1
if (.not.cremat(fname,topw,0,1,1,lrtol,lc)) return
topw=topw+1
stk(latol)=atol
stk(lrtol)=rtol
info(2)=0
iskip=iskip+2
goto 105
endif
if(.not.getrvect(fname,topk,top-rhs+4,m4,n4,latol))return
m4 = m4*n4
c checking variable rtol (number 5)
c --------------------------------
itype = gettype(top-rhs+5)
if (itype .ne. 1) then
if (.not.cremat(fname,topw,0,1,1,lrtol,lc)) return
topw=topw+1
stk(lrtol)=lrtol
info(2)=0
iskip=iskip+1
goto 105
endif
if(.not.getrvect(fname,topk,top-rhs+5,m5,n5,lrtol))return
m5 = m5*n5
if(m5.ne.m4) then
call error(60)
return
endif
if(m5.eq.1) then
info(2)=0
else
info(2)=1
endif
c checking variable res (number 6)
c
105 kres=top-rhs+6-iskip
if (.not.getexternal(fname,topk,kres,namer,type,
$ setfresd)) return
c checking variable jac (number 7)
c
kjac=top-rhs+7-iskip
if(kjac.gt.top) then
iskip=iskip+1
info(5)=0
else
isres=gettype(kjac)
if(isres.eq.15) then
c . info or jac ? get list size to decide
il6=iadr(lstk(kjac))
if (istk(il6).lt.0) il6=istk(il6+1)
if (istk(il6+1).eq.2) then
c . jac
isres=13
endif
endif
if((isres.ne.10).and.(isres.ne.11).and.(isres.ne.13)) then
iskip=iskip+1
info(5)=0
else
info(5)=1
if (.not.getexternal(fname,topk,kjac,namej,type,
$ setfjacd)) return
endif
endif
c
c checking variable info (number 8)
c ---------------------------------
kinfo=top-rhs+8-iskip
if (kinfo.gt.top) then
info(4)=0
info(3)=0
info(6)=0
info(7)=0
info(8)=0
info(10)=0
info(11)=0
iskip=iskip+1
goto 10
endif
il8 = iadr(lstk(top-rhs+8-iskip))
if (istk(il8) .ne. 15) then
c default info values
info(4)=0
info(3)=0
info(6)=0
info(7)=0
info(8)=0
info(10)=0
info(11)=0
iskip=iskip+1
goto 10
endif
n8=istk(il8+1)
l8=sadr(il8+n8+3)
c
c -- subvariable tstop(info) --
il8e1=iadr(l8+istk(il8+1+1)-1)
l8e1 = sadr(il8e1+4)
m8e1 = istk(il8e1+1)*istk(il8e1+2)
if(m8e1.eq.0) then
info(4)=0
else
info(4)=1
tstop=stk(l8e1)
endif
c
c -- subvariable imode(info) --
il8e2=iadr(l8+istk(il8+1+2)-1)
l8e2 = sadr(il8e2+4)
info(3)=stk(l8e2)
c
c -- subvariable band(info) --
il8e3=iadr(l8+istk(il8+1+3)-1)
m8e3 =istk(il8e3+2)*istk(il8e3+2)
l8e3 = sadr(il8e3+4)
if(m8e3.eq.0) then
info(6)=0
elseif(m8e3.eq.2) then
info(6)=1
ml=stk(l8e3)
mu=stk(l8e3+1)
else
err=8-iskip
call error(89)
return
endif
c
c -- subvariable maxstep(info) --
il8e4=iadr(l8+istk(il8+1+4)-1)
m8e4 =istk(il8e4+2)*istk(il8e4+2)
l8e4 = sadr(il8e4+4)
if(m8e4.eq.0) then
info(7)=0
else
info(7)=1
maxstep=stk(l8e4)
endif
c
c -- subvariable stepin(info) --
il8e5=iadr(l8+istk(il8+1+5)-1)
m8e5 =istk(il8e5+2)*istk(il8e5+2)
l8e5 = sadr(il8e5+4)
if(m8e5.eq.0) then
info(8)=0
else
info(8)=1
stepin=stk(l8e5)
endif
c
c -- subvariable nonneg(info) --
il8e6=iadr(l8+istk(il8+1+6)-1)
l8e6 = sadr(il8e6+4)
info(10)=stk(l8e6)
c
c -- subvariable isest(info) --
il8e7=iadr(l8+istk(il8+1+7)-1)
l8e7 = sadr(il8e7+4)
isest=stk(l8e7)
if(isest.eq.1) info(11)=1
10 hotstart=.false.
if(rhs.eq.9-iskip) then
hotstart=.true.
c
c checking variable hotdata (number 9)
c
il9 = iadr(lstk(top-rhs+9-iskip))
if (istk(il9) .ne. 1) then
err = 9-iskip
call error(53)
return
endif
n9 = istk(il9+1)*istk(il9+2)
lhot = sadr(il9+4)
elseif(rhs.ne.8-iskip) then
call error(39)
return
endif
c
c --------------------Work Tables
if (.not.cremat(fname,topw,0,1,1,lw15,lc)) return
topw=topw+1
if (.not.cremat(fname,topw,0,1,1,lw17,lc)) return
topw=topw+1
il17=iadr(lw17)
if(info(6).eq.0) then
C for the full (dense) JACOBIAN case
lrw = 40+(maxord+4)*neq+neq**2
elseif(info(5).eq.1) then
C for the banded user-defined JACOBIAN case
lrw=40+(maxord+4)*neq+(2*ml+mu+1)*neq
elseif(info(5).eq.0) then
C for the banded finite-difference-generated JACOBIAN case
lrw = 40+(maxord+4)*neq+(2*ml+mu+1)*neq+2*(neq/(ml+mu+1)+1)
endif
liw=20+neq
if(.not.hotstart) then
if (.not.cremat(fname,topw,0,1,lrw,lrwork,lc)) return
topw=topw+1
if (.not.cremat(fname,topw,0,1,sadr(liw)+1,liwork,lc)) return
topw=topw+1
else
if(lrw+liw.gt.n9) then
err=9-iskip
call error(89)
return
endif
lrwork=lhot
liwork=lhot+lrw
call entier(liw,stk(liwork),istk(iadr(liwork)))
endif
c
if(info(4).eq.1) then
stk(lrwork)=tstop
endif
if(info(7).eq.1) then
stk(lrwork+1)=maxstep
endif
if(info(8).eq.1) then
stk(lrwork+2)=stepin
endif
if(info(6).eq.1) then
istk(iadr(liwork))=ml
istk(iadr(liwork+1))=mu
endif
c structure d'info pour les externals
top=topw
lw=lstk(top)
ilext=iadr(lw)
istk(ilext)=2
istk(ilext+1)=ilext+4
istk(ilext+2)=ilext+8
istk(ilext+3)=ilext+12
istk(ilext+4)=kres
istk(ilext+5)=neq
istk(ilext+6)=kt0
istk(ilext+7)=ky
istk(ilext+8)=kjac
istk(ilext+9)=neq
istk(ilext+10)=kt0
istk(ilext+11)=ky
lw=sadr(ilext)+12
lw0=lw
ilyr=iadr(lw)
istk(ilyr)=1
istk(ilyr+1)=2*n1+1
istk(ilyr+3)=0
lyr=sadr(ilyr+4)
lyri=lyr-(2*n1+1)
k=0
info(1)=0
if(hotstart) info(1)=1
info(9)=0
do 120 i=0,nt-1
tout=stk(l3+i)
c
115 k=k+1
lyri=lyri+(2*n1+1)
lw=lyri+(2*n1+1)
lstk(top+1)=lw
margin=(k-1)*(2*n1+1)+4
lw1=lw+margin
if(lhs.eq.2) lw1=lw1+4+lrw+liw
if(lw1-lstk(bot).gt.0) then
c not enough memory
call msgstxt('Not enough memory to go further')
k=k-1
goto 125
endif
if (tout .eq. t0) then
stk(lyri)=tout
call unsfdcopy(n1,stk(l1),1,stk(lyri+1),1)
call unsfdcopy(n1,stk(lydot),1,stk(lyri+n1+1),1)
l1=lyri+1
lydot=lyri+n1+1
t0=tout
goto 120
else
stk(lyri)=tout
call unsfdcopy(n1,stk(l1),1,stk(lyri+1),1)
call unsfdcopy(n1,stk(lydot),1,stk(lyri+n1+1),1)
l1=lyri+1
lydot=lyri+n1+1
call dassl(bresd,n1,t0,stk(l1),stk(lydot),
& stk(lyri),info,stk(lrtol),stk(latol),idid,
& stk(lrwork),lrw,istk(iadr(liwork)),liw,stk(lw15),
& istk(il17),bjacd)
endif
if(err.gt.0) return
if(idid.eq.1) then
C A step was successfully taken in the intermediate-output mode.
C The code has not yet reached TOUT.
stk(lyri)=t0
info(1)=1
goto 115
elseif(idid.eq.2) then
C The integration to TSTOP was successfully completed (T=TSTOP)
goto 125
elseif(idid.eq.3) then
C The integration to TOUT was successfully completed (T=TOUT) by
C stepping past TOUT. Y,ydot are obtained by interpolation.
t0=tout
info(1)=1
goto 120
elseif(idid.eq.-1) then
C A large amount of work has been expended (About 500 steps)
call msgstxt('to many steps necessary to reached next '//
& 'required time discretization point')
call msgstxt('Change discretisation of time vector t '//
& 'or decrease accuracy')
stk(lyri)=t0
goto 125
elseif(idid.eq.-2) then
C The error tolerances are too stringent.
t0=tout
info(1)=1
goto 115
c buf='The error tolerances are too stringent'
c call error(9982)
c return
elseif(idid.eq.-3) then
C The local error test cannot be satisfied because you specified
C a zero component in ATOL and the corresponding computed solution
C component is zero. Thus, a pure relative error test is impossible
C for this component.
buf='atol and computed test value are zero'
call error(9983)
return
elseif(idid.eq.-6) then
C repeated error test failures on the last attempted step.
call msgstxt('A singularity in the solution '//
& 'may be present')
goto 125
elseif(idid.eq.-7) then
C The corrector could not converge.
call msgstxt('May be inaccurate or ill-conditioned '//
& 'JACOBIAN')
goto 125
elseif(idid.eq.-8) then
C The matrix of partial derivatives is singular.
buf='Singular partial derivatives matrix'//
& ' (may be redundant equations)'
call error(9986)
return
elseif(idid.eq.-9) then
C The corrector could not converge. there were repeated error
c test failures in this step.
call msgstxt('Either ill-posed problem or '//
& 'discontinuity or singularity encountered')
goto 125
elseif(idid.eq.-10) then
call msgstxt('external ''res'' return many times'//
& ' with ires=-1')
goto 125
elseif(idid.eq.-11) then
C IRES equal to -2 was encountered and control is being returned to the
C calling program.
buf='error in external ''res'' '
call error(9989)
return
elseif(idid.eq.-12) then
C DDASSL failed to compute the initial YPRIME.
buf='dassl failed to compute the initial Ydot.'
call error(9990)
return
elseif(idid.eq.-33) then
C The code has encountered trouble from which
C it cannot recover. A message is printed
C explaining the trouble and control is returned
C to the calling program. For example, this occurs
C when invalid input is detected.
call msgstxt('dassl encountered trouble')
goto 125
endif
t0=tout
info(1)=1
120 continue
c
125 top=topk-rhs
mv=lw0-l0
c
c Variable de sortie: y0
c
top=top+1
if(k.eq.0) istk(ilyr+1)=0
istk(ilyr+2)=k
lw=lyr+(2*n1+1)*k
lstk(top+1)=lw-mv
if(lhs.eq.1) goto 150
c
c Variable de sortie: rwork
c
top=top+1
ilw=iadr(lw)
err=lw+4+lrw+liw-lstk(bot)
if (err .gt. 0) then
call error(17)
return
endif
istk(ilw)=1
istk(ilw+1)=lrw+liw
istk(ilw+2)=1
istk(ilw+3)=0
lw=sadr(ilw+4)
call unsfdcopy(lrw,stk(lrwork),1,stk(lw),1)
call int2db(liw,istk(iadr(liwork)),1,stk(lw+lrw),1)
lw=lw+lrw+liw
lstk(top+1)=lw-mv
c
c Remise en place de la pile
150 call unsfdcopy(lw-lw0,stk(lw0),1,stk(l0),1)
return
end
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