From 1257b871185a7785094a8dcc05d67bae1e7f32ae Mon Sep 17 00:00:00 2001
From: Joe Taylor <joe@princeton.edu>
Date: Thu, 15 Jul 2021 14:26:35 -0400
Subject: [PATCH] Save a more-or-less working read_tf2().

---
 map65/libm65/read_tf2.f90 | 49 ++++++++++++++++++++++++++++-----------
 1 file changed, 36 insertions(+), 13 deletions(-)

diff --git a/map65/libm65/read_tf2.f90 b/map65/libm65/read_tf2.f90
index cb6c5b1b5..d89dd8753 100644
--- a/map65/libm65/read_tf2.f90
+++ b/map65/libm65/read_tf2.f90
@@ -1,27 +1,50 @@
 subroutine read_tf2(k)
 
   parameter (NFFT=32768)
-  integer*8 ms                              !ms since epoch
   integer k                                 !data sample pointer
   integer*2 id2(4,174)
-  logical lopen
+  character*80 fname(100)
+  logical first,eof
   real*8 fcenter
   common/datcom/dd(4,5760000),ss(4,322,NFFT),savg(4,NFFT),fcenter,nutc,junk(38)
-  data lopen/.false./
-  save lopen
+  data first/.true./,n1/0/
+  save
+
+  if(first) then
+     open(27,file='mockRTfiles.txt',status='old',err=999)
+     do i=1,100
+        read(27,1000,end=10) fname(i)
+1000    format(a)
+     enddo
+10   nfiles=i-1
+     ifile=0
+     close(27)
+  endif
 
   if(k.eq.0) then
-     inquire(27,opened=lopen)
-     if(lopen) then
-        rewind 27
-     else
-        open(27,file='000000_0000.tf2',status='old',access='stream')
-     endif
+     ifile=ifile+1
+     if(ifile.eq.2 .and. n1.eq.1) ifile=1
+     if(ifile.eq.1) n1=n1+1
+     if(ifile.gt.nfiles) ifile=1
+     if(.not.first) close(27)
+     first=.false.
+     i1=index(fname(ifile),'.tf2')
+     read(fname(ifile)(i1-4:i1-1),*) nutc
+     open(27,file=fname(ifile),status='old',access='stream',err=999)
+     print*,ifile,n1,nutc,trim(fname(ifile))
+     eof=.false.
      read(27) fcenter
   endif
-  
-  read(27,end=999) id2
-  do i=1,174
+
+  if(eof) then
+     id2=0
+  else
+     read(27,end=20) id2
+  endif
+  go to 30
+20 eof=.true.
+  id2=0
+30 do i=1,174
      k=k+1
      dd(1,k)=id2(1,i)
      dd(2,k)=id2(2,i)