+C Store the geometric variables in the following COMMON block.
+ integer ntheta,nphi,nside,nvar,Origin,nstore,ialph,ivar,
+ & mask_theta,mask_phi,mask_side
+ double precision theta,phi,alph,omeg,varsave,esave,varall,vbld,
+ & thetaref,phiref,costtab,sinttab,cost2tab,sint2tab,
+ & xxtab,yytab,zztab,xxref,yyref,zzref
+ common /var/ theta(maxres),phi(maxres),alph(maxres),omeg(maxres),
+ & omicron(2,maxres),tauangle(3,maxres),
+ & vbld(2*maxres),thetaref(maxres),phiref(maxres),
+ & costtab(maxres), sinttab(maxres), cost2tab(maxres),
+ & sint2tab(maxres),xxtab(maxres),yytab(maxres),
+ & zztab(maxres),xxref(maxres),yyref(maxres),zzref(maxres),
+ & ialph(maxres,2),ivar(4*maxres2),ntheta,nphi,nside,nvar
+C Store the angles and variables corresponding to old conformations (for use
+C in MCM).
+ common /oldgeo/ varsave(maxvar,maxsave),esave(maxsave),
+ & Origin(maxsave),nstore
+C freeze some variables
+ logical mask_r
+ common /restr/ varall(maxvar),mask_r,mask_theta(maxres),
+ & mask_phi(maxres),mask_side(maxres)