1 files changed, 94 insertions, 0 deletions
diff --git a/src/Coefficients_4_2.F90 b/src/Coefficients_4_2.F90
index 099c5b6..d2b1b07 100644
--- a/src/Coefficients_4_2.F90
+++ b/src/Coefficients_4_2.F90
@@ -178,3 +178,97 @@ subroutine set_coeff_up_4_2 ( nsize, dir, loc_order, bb, gsize, imin, imax, dd )
     end if
   end do
 end subroutine set_coeff_up_4_2
+
+subroutine set_coeff_up_4 ( nsize, dir, loc_order, bb, gsize, imin, imax, dd )
+
+  use All_Coeffs_mod
+
+  implicit none
+
+  DECLARE_CCTK_FUNCTIONS
+  DECLARE_CCTK_PARAMETERS
+
+  CCTK_INT, intent(IN) :: nsize, dir, loc_order
+  CCTK_INT, dimension(2), intent(IN) :: bb
+  CCTK_INT, intent(IN) :: gsize
+  CCTK_INT, dimension(nsize), intent(OUT) :: imin, imax
+  CCTK_REAL, dimension(nsize,nsize), intent(OUT) :: dd
+
+  CCTK_REAL, dimension(-3:3), save :: a1, a2
+  CCTK_REAL, dimension(4,3), save :: q1, q2
+
+  CCTK_INT :: i, il, ir
+
+  logical, save :: first = .true.
+
+  if ( .not. ( dir == -1 .or. dir == 1 ) ) then
+    call CCTK_WARN(0, 'Internal error: set_coeff_up_2 called with invalid dir value')
+  end if
+
+  if ( first ) then
+    call coeffs_up_4 ( a1, q1, a2, q2 )
+    first = .false.
+  end if
+
+  dd = zero
+  imin = 0
+  imax = -1
+
+  if ( bb(1) == 0 ) then
+    il = 1 + gsize
+  else
+    if ( dir == -1 ) then
+      dd(1,1) = q1(1,1);
+      imin(1) = 1; imax(1) = 1
+
+      dd(1:2,2) = q1(1:2,2);
+      imin(2) = 1; imax(2) = 2
+
+      dd(1:3,3) = q1(1:3,3);
+      imin(3) = 1; imax(3) = 3
+    else
+      dd(1,1) = q2(1,1);
+      imin(1) = 1; imax(1) = 1
+
+      dd(1:5,2) = a2(-1:3);
+      imin(2) = 1; imax(2) = 5
+
+      dd(2:6,3) = a2(-1:3);
+      imin(3) = 2; imax(3) = 6
+    end if
+    il = 4
+  end if
+  if ( bb(2) == 0 ) then
+    ir = nsize - gsize
+  else
+    if ( dir == -1 ) then
+      dd(nsize,nsize) = q1(1,1)
+      imin(nsize) = nsize; imax(nsize) = nsize
+
+      dd(nsize-4:nsize,nsize-1) = a1(-3:1)
+      imin(nsize-1) = nsize-4; imax(nsize-1) = nsize
+
+      dd(nsize-5:nsize-1,nsize-2) = a1(-3:1)
+      imin(nsize-2) = nsize-5; imax(nsize-2) = nsize-1
+    else
+      dd(nsize,nsize) = q2(1,1)
+      imin(nsize) = nsize; imax(nsize) = nsize
+
+      dd(nsize-1:nsize,nsize-1) = q2(3:4,2)
+      imin(nsize-1) = nsize-1; imax(nsize-1) = nsize
+
+      dd(nsize-2:nsize,nsize-2) = q2(2:4,3)
+      imin(nsize-2) = nsize-2; imax(nsize-2) = nsize
+    end if
+    ir = nsize - 3
+  end if
+  do i = il, ir
+    if ( dir == -1 ) then
+      dd(i-3:i+1,i) = a1(-3:1)
+      imin(i) = i-3; imax(i) = i+1
+    else
+      dd(i-1:i+3,i) = a2(-1:3)
+      imin(i) = i-1; imax(i) = i+3
+    end if
+  end do
+end subroutine set_coeff_up_4