c -- bdrysin.h -- 
c input context and boundaries

      real ccc0( nvar, npx, npy, 1-nbdyf:npz+nbdyf+1 )

	  real xl(nvar,nbdyf, npy, 1-nbdyf:npz+nbdyf+1 )
	  real xr(nvar,nbdyf, npy, 1-nbdyf:npz+nbdyf+1 )
	  real yb(nvar,npx, nbdyf, 1-nbdyf:npz+nbdyf+1 )
	  real yt(nvar,npx, nbdyf, 1-nbdyf:npz+nbdyf+1 )

	  real xlyb(nvar,nbdyf,nbdyf,1-nbdyf:npz+nbdyf+1)
	  real xlyt(nvar,nbdyf,nbdyf,1-nbdyf:npz+nbdyf+1)
	  real xryt(nvar,nbdyf,nbdyf,1-nbdyf:npz+nbdyf+1)
	  real xryb(nvar,nbdyf,nbdyf,1-nbdyf:npz+nbdyf+1)

	  common /bdrysin/ ccc0, xl,xr,yb,yt, xlyb,xlyt,xryt,xryb