From 971a2c80eecb153f8d7f2dddc46509482f07d056 Mon Sep 17 00:00:00 2001
From: Joe Taylor <k1jt@arrl.org>
Date: Fri, 28 Sep 2012 20:00:05 +0000
Subject: [PATCH] Trying to make fano decoder work in genjt9...

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@2606 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 libm65/genjt9.f90 | 53 ++++++++++++++++++++++++++++++++++++++---------
 mainwindow.cpp    |  2 +-
 2 files changed, 44 insertions(+), 11 deletions(-)

diff --git a/libm65/genjt9.f90 b/libm65/genjt9.f90
index 5ce8160a8..97779f195 100644
--- a/libm65/genjt9.f90
+++ b/libm65/genjt9.f90
@@ -6,6 +6,8 @@ subroutine genjt9(message,minutes,msgsent,d6)
   character*22 message          !Message to be generated
   character*22 msgsent          !Message as it will be received
 
+  integer*4 mettab(0:255,0:1)
+
   integer*4 d0(13)              !72-bit message as 6-bit words
   integer*1 d1(13)              !72 bits and zero tail as 8-bit bytes
   integer*1 d2(206)             !Encoded information-carrying bits
@@ -21,6 +23,7 @@ subroutine genjt9(message,minutes,msgsent,d6)
   integer*4 t4(69)              !Symbols from d3, values 0-7
   integer*4 t5(69)              !Gray-coded symbols, values 0-7
   integer*4 t6(85)              !Channel symbols including sync, values 0-8
+  integer*1 tmp(72)
 
   integer isync(85)
   data isync/                                    &
@@ -52,18 +55,48 @@ subroutine genjt9(message,minutes,msgsent,d6)
      endif
   enddo
 
-!  t6=d6
-!  j=0
-!  do i=1,85
-!     if(isync(i).eq.1) cycle
-!     j=j+1
-!     t5(j)=t6(i)-1
-!  enddo
+  if(j.ne.999) return
 
-!  call graycode(t5,69,-1,t4)
-!  call unpackbits(t4,nsym2,3,t3)
-!  call interleave9(t3,-1,t2)
+  t6=d6
+  j=0
+  do i=1,85
+     if(isync(i).eq.1) cycle
+     j=j+1
+     t5(j)=t6(i)-1
+  enddo
+
+  call graycode(t5,69,-1,t4)
+  call unpackbits(t4,nsym2,3,t3)
+  call interleave9(t3,-1,t2)
 !  print*,'A',d2-t2
 
+! Get the metric table
+  bias=0.37
+  scale=10                        !Optimize?
+  open(19,file='met8.21',status='old')
+
+  do i=0,255
+     read(19,*) xjunk,x0,x1
+     mettab(i,0)=nint(scale*(x0-bias))
+     mettab(i,1)=nint(scale*(x1-bias))    !### Check range, etc.  ###
+  enddo
+  print*,'b'
+
+  ndelta=17
+  ntimeout=0
+  limit=1000
+  call fano232(t2,72+31,mettab,ndelta,limit,t1,ncycles,metric,ierr)
+  print*,t1
+!  if(ncycles/(72+31).ge.limit) ntimeout=1
+!  nbytes=(nbits+7)/8
+!  do i=1,nbytes
+!     n=t1(i)
+!     t4(i)=iand(n,255)
+!  enddo
+!  call unpackbits(t1,9,8,tmp)
+!  call packbits(tmp,12,6,t0)
+!  print*,'z',t0
+
+
   return
 end subroutine genjt9
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 2df44ab0f..d1d67f2ab 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,4 +1,4 @@
-//---------------------------------------------------------------- MainWindow
+//--------------------------------------------------------------- MainWindow
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "devsetup.h"