/* $OpenBSD: inchr.c,v 1.2 2003/09/07 21:35:35 miod Exp $ */ /* * bug routines -- assumes that the necessary sections of memory * are preserved. */ #include #include #include "stand.h" #include "prom.h" /* returns 0 if no characters ready to read */ int getchar() { int ret; MVMEPROM_CALL(MVMEPROM_INCHR); asm volatile ("or %0,r0,r2" : "=r" (ret)); return ret; }