Annotation of sys/arch/mvme88k/stand/libbug/instat.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: instat.c,v 1.3 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: #include "prom.h"
! 10:
! 11: /* returns 0 if no characters ready to read */
! 12: int
! 13: mvmeprom_instat()
! 14: {
! 15: short ret;
! 16:
! 17: MVMEPROM_CALL(MVMEPROM_INSTAT);
! 18: asm volatile ("or %0,r0,r2" : "=r" (ret));
! 19: return (!(ret & 0x4));
! 20: }
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