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Annotation of sys/arch/mvme88k/stand/libbug/inchr.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: inchr.c,v 1.2 2003/09/07 21:35:35 miod Exp $ */
                      2:
                      3: /*
                      4:  * bug routines -- assumes that the necessary sections of memory
                      5:  * are preserved.
                      6:  */
                      7: #include <sys/types.h>
                      8: #include <machine/prom.h>
                      9:
                     10: #include "stand.h"
                     11: #include "prom.h"
                     12:
                     13: /* returns 0 if no characters ready to read */
                     14: int
                     15: getchar()
                     16: {
                     17:        int ret;
                     18:
                     19:        MVMEPROM_CALL(MVMEPROM_INCHR);
                     20:        asm volatile ("or %0,r0,r2" :  "=r" (ret));
                     21:        return ret;
                     22: }