VMIN             1532 src/dps8/panelScraper.c     config.c_cc[VMIN]  = 1;
VMIN              256 src/simh/linehistory.c   raw.c_cc[VMIN]  = 1;
VMIN             2254 src/simh/sim_console.c runtty.c_cc[VMIN]     = 0;                                     /* no waiting */