SCPE_TTYERR 6543 src/simh/scp.c return SCPE_TTYERR; SCPE_TTYERR 2010 src/simh/sim_console.c return SCPE_TTYERR; SCPE_TTYERR 2027 src/simh/sim_console.c return SCPE_TTYERR; SCPE_TTYERR 2055 src/simh/sim_console.c return SCPE_TTYERR; SCPE_TTYERR 2060 src/simh/sim_console.c return SCPE_TTYERR;