UV_EBADF          761 src/dps8/fnpuv.c         if (ret != UV_EBADF)
UV_EBADF          803 src/dps8/fnpuv.c         if (ret != UV_EBADF)
UV_EBADF          416 src/dps8/uvutil.c         if (ret != UV_EBADF && !sim_quiet)