Works with some errors

pi@pi98:~/multics/dps8m-R1.0$ make
cd src/dps8 && make
make[1]: Entering directory '/home/pi/multics/dps8m-R1.0/src/dps8'
cp dps8.sha1.txt~ dps8.sha1.txt
CC prt2pdf.c
prt2pdf.c:431:29: warning: comparison of constant -1 with expression of type 'char' is always true
      [-Wtautological-constant-out-of-range-compare]
    while ((c = getchar ()) != EOF)
           ~~~~~~~~~~~~~~~~ ^  ~~~
1 warning generated.
LD prt2pdf
(cd ../simh-master; make -f Makefile)
CC scp.c
CC sim_console.c
CC sim_disk.c
CC sim_ether.c
CC sim_fio.c
CC sim_serial.c
CC sim_sock.c
CC sim_tape.c
CC sim_timer.c
CC sim_tmxr.c
CC sim_video.c
AR simh.a
(cd ../decNumber; make)
CC decContext.c
CC decNumber.c
AR decNumber.a
#make zmq
make dps8.sha1.txt
make[2]: 'dps8.sha1.txt' is up to date.
make dps8
CC dps8_absi.c
CC dps8_addrmods.c
CC dps8_append.c
CC dps8_bar.c
CC dps8_cable.c
CC dps8_console.c
CC dps8_cpu.c
CC dps8_crdpun.c
CC dps8_crdrdr.c
CC dps8_decimal.c
CC dps8_disk.c
CC dps8_eis.c
CC dps8_faults.c
CC dps8_fnp2.c
dps8_fnp2.c:1270:57: warning: implicit conversion changes signedness: 'uint' (aka 'unsigned int') to 'ssize_t' (aka 'int')
      [-Wsign-conversion]
      fnpuv_start_write (linep->client, (char *) clean, tally);
      ~~~~~~~~~~~~~~~~~                                 ^~~~~
dps8_fnp2.c:2817:90: warning: implicit conversion changes signedness: 'ssize_t' (aka 'int') to 'unsigned int' [-Wsign-conversion]
        unsigned char * new = realloc (linep->inBuffer, (unsigned long) (linep->inSize + nread));
                                                                                       ~ ^~~~~
dps8_fnp2.c:2824:26: warning: implicit conversion changes signedness: 'ssize_t' (aka 'int') to 'unsigned int' [-Wsign-conversion]
        linep->inSize += nread;
                      ~~ ^~~~~
3 warnings generated.
CC dps8_iefp.c
CC dps8_ins.c
CC dps8_iom.c
CC dps8_loader.c
CC dps8_math.c
CC dps8_math128.c
dps8_math128.c:43:4: warning: expression result unused [-Wunused-value]
                1/0;
                ~^~
dps8_math128.c:43:4: warning: division by zero is undefined [-Wdivision-by-zero]
                1/0;
                 ^~
dps8_math128.c:81:28: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return (TItype)__udivti3(div,dvd);
                               ~~~~~~~~~ ^~~
dps8_math128.c:81:32: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return (TItype)__udivti3(div,dvd);
                               ~~~~~~~~~     ^~~
dps8_math128.c:83:30: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return -((TItype)__udivti3(div,dvd));
                                 ~~~~~~~~~ ^~~
dps8_math128.c:83:34: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return -((TItype)__udivti3(div,dvd));
                                 ~~~~~~~~~     ^~~
dps8_math128.c:103:42: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return (TItype)__umodti3(div,dvd);
                               ~~~~~~~~~ ^~~
dps8_math128.c:103:46: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return (TItype)__umodti3(div,dvd);
                               ~~~~~~~~~     ^~~
dps8_math128.c:105:39: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return ((TItype)0-(TItype)__umodti3(div,dvd));
                                          ~~~~~~~~~ ^~~
dps8_math128.c:105:43: warning: implicit conversion changes signedness: 'TItype' (aka '__int128') to 'UTItype' (aka 'unsigned __int128')
      [-Wsign-conversion]
                return ((TItype)0-(TItype)__umodti3(div,dvd));
                                          ~~~~~~~~~     ^~~
10 warnings generated.
CC dps8_mt.c
CC dps8_opcodetable.c
CC dps8_prt.c
CC dps8_scu.c
CC dps8_sys.c
CC dps8_urp.c
CC dps8_utils.c
CC fnpuv.c
CC fnptelnet.c
CC libtelnet.c
CC hdbg.c
CC udplib.c
LD dps8
make[1]: Leaving directory '/home/pi/multics/dps8m-R1.0/src/dps8'
pi@pi98:~/multics/dps8m-R1.0/src$ cd src/dps8
pi@pi98:~/multics/dps8m-R1.0/src/dps8$ ./dps8
DPS8/M emulator (git aff749bf)
Production build
DPS8M system session id is 16549
Please register your system at https://ringzero.wikidot.com/wiki:register
or create the file 'serial.txt' containing the line 'sn: 0'.
FNP telnet server port set to 6180

DPS8M simulator V4.0-0 Beta        git commit id: c420925a
sim> quit
Goodbye
pi@pi98:~/multics/dps8m-R1.0/src/dps8$