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/* $OpenBSD: inchr.c,v 1.1 2001/06/26 21:58:04 smurph Exp $ */
/*
* bug routines -- assumes that the necessary sections of memory
* are preserved.
*/
#include <sys/types.h>
#include <machine/prom.h>
#include "stand.h"
#include "libbug.h"
/* returns 0 if no characters ready to read */
int
getchar()
{
int ret;
MVMEPROM_CALL(MVMEPROM_INCHR);
asm volatile ("mr %0, 3" : "=r" (ret));
return ret;
}
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