7 * Copyright (C) 2002 Yoshinori Sato <ysato@sourceforge.jp>
9 * Delay routines, using a pre-computed "loops_per_second" value.
12 extern __inline__ void __delay(unsigned long loops)
14 __asm__ __volatile__ ("mov.l %0,er0\n\t"
22 * Use only for very small delays ( < 1 msec). Should probably use a
23 * lookup table, really, as the multiplications take much too long with
24 * short delays. This is a "reasonable" implementation, though (and the
25 * first constant multiplications gets optimized away if the delay is
29 extern unsigned long loops_per_jiffy;
31 extern __inline__ void udelay(unsigned long usecs)
33 usecs *= 4295; /* 2**32 / 1000000 */
34 usecs /= (loops_per_jiffy*HZ);
39 #endif /* _H8300_DELAY_H */