SCPE_IOERR 6367 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 7305 src/simh/scp.c reason = SCPE_IOERR; SCPE_IOERR 7391 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 8728 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 8744 src/simh/scp.c return SCPE_IOERR; SCPE_IOERR 1093 src/simh/sim_disk.c return SCPE_IOERR;