set_mem_watch    2366 src/dps8/dps8_cpu.h t_stat set_mem_watch (int32 arg, const char * buf);
set_mem_watch    4000 src/dps8/dps8_sys.c     {"WATCH",        set_mem_watch,    1,      "Watch memory location\n",                     NULL, NULL},
set_mem_watch    4001 src/dps8/dps8_sys.c     {"NOWATCH",      set_mem_watch,    0,      "Unwatch memory location\n",                   NULL, NULL},