WSJT-X/lib/jt65code.f90
Bill Somerville 4daea139cd Message unpacking fixes and improved test coverage
Fix packjt truncation error and text3 null detection.

Add additional test messages.

Add  check  message  capability  to   jt65code  and  jt9code  so  that
comparison confirms expected output.

jt65code and jt9code now  should always have identical outputs..should
allow for automatic regression testing.

Thanks to Mike, W9MDB, for this contribution.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7649 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-04-22 12:40:44 +00:00

102 lines
3.2 KiB
Fortran

program JT65code
! Provides examples of message packing, bit and symbol ordering,
! Reed Solomon encoding, and other necessary details of the JT65
! protocol.
use packjt
character*22 msg,msgchk,msg0,msg1,decoded,cok*3,bad*1,msgtype*10,expected
integer dgen(12),sent(63),tmp(63),recd(12),era(51)
include 'testmsg.f90'
nargs=iargc()
if(nargs.ne.1) then
print*,'Usage: jt65code "message"'
print*,' jt65code -t'
go to 999
endif
call getarg(1,msg) !Get message from command line
msgchk=msg
call fmtmsg(msgchk,iz)
nmsg=1
if(msg(1:2).eq."-t") then
if (NTEST+5 > MAXTEST) then
write(*,*) "NTEST exceed MAXTEST"
endif
testmsg(NTEST+1)="KA1ABC WB9XYZ EN34 OOO"
testmsg(NTEST+2)="KA1ABC WB9XYZ OOO"
testmsg(NTEST+3)="RO"
testmsg(NTEST+4)="RRR"
testmsg(NTEST+5)="73"
testmsgchk(NTEST+1)="KA1ABC WB9XYZ EN34 OOO"
testmsgchk(NTEST+2)="KA1ABC WB9XYZ OOO"
testmsgchk(NTEST+3)="RO"
testmsgchk(NTEST+4)="RRR"
testmsgchk(NTEST+5)="73"
nmsg=NTEST+5
endif
write(*,1010)
1010 format(" Message Decoded Err? Type Expected"/ &
76("-"))
do imsg=1,nmsg
if(nmsg.gt.1) then
msg=testmsg(imsg)
msgchk=testmsgchk(imsg)
endif
call fmtmsg(msg,iz) !To upper, collapse mult blanks
msg0=msg !Input message
call chkmsg(msg,cok,nspecial,flip) !See if it includes "OOO" report
msg1=msg !Message without "OOO"
if(nspecial.gt.0) then !or is a shorthand message
if(nspecial.eq.2) decoded="RO"
if(nspecial.eq.3) decoded="RRR"
if(nspecial.eq.4) decoded="73"
itype=-1
msgtype="Shorthand"
go to 10
endif
call packmsg(msg1,dgen,itype) !Pack message into 12 six-bit bytes
msgtype=""
if(itype.eq.1) msgtype="Std Msg"
if(itype.eq.2) msgtype="Type 1 pfx"
if(itype.eq.3) msgtype="Type 1 sfx"
if(itype.eq.4) msgtype="Type 2 pfx"
if(itype.eq.5) msgtype="Type 2 sfx"
if(itype.eq.6) msgtype="Free text"
call rs_encode(dgen,sent) !RS encode
call interleave63(sent,1) !Interleave channel symbols
call graycode(sent,63,1,sent) !Apply Gray code
call graycode(sent,63,-1,tmp) !Remove Gray code
call interleave63(tmp,-1) !Remove interleaving
call rs_decode(tmp,era,0,recd,nerr) !Decode the message
call unpackmsg(recd,decoded) !Unpack the user message
if(cok.eq."OOO") decoded(20:22)=cok
call fmtmsg(decoded,iz)
10 bad=" "
if(decoded.ne.msgchk) bad="*"
expected = 'EXACT'
if (msg0.ne.msgchk) expected = 'TRUNCATED'
if (nmsg.eq.1) expected = 'UNKNOWN'
write(*,1020) imsg,msg0,decoded,bad,itype,msgtype,expected
1020 format(i2,'.',1x,a22,1x,a22,1x,a1,i3,":",a10,2x,a22)
enddo
if(nmsg.eq.1 .and. nspecial.eq.0) then
write(*,1030) dgen
1030 format(/'Packed message, 6-bit symbols ',12i3) !Display packed symbols
write(*,1040) sent
1040 format(/'Information-carrying channel symbols'/(i5,20i3))
endif
999 end program JT65code