SCPE_IOERR 6255 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 7193 src/simh/scp.c reason = SCPE_IOERR; SCPE_IOERR 7279 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 8616 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 8632 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 1089 src/simh/sim_disk.c return SCPE_IOERR;