#ifndef _M68K_DELAY_H#define _M68K_DELAY_H #include <asm/param.h> /* * Copyright (C) 1994 Hamish Macdonald * * Delay routines, using a pre-computed "loops_per_jiffy" value. */ static inline void __delay(unsigned long loops){	__asm__ __volatile__ ("1: subql #1,%0; jcc 1b"		: "=d" (loops) : "0" (loops));} extern void __bad_udelay(void); /* * Use only for very small delays ( < 1 msec).  Should probably use a * lookup table, really, as the multiplications take much too long with * short delays.  This is a "reasonable" implementation, though (and the * first constant multiplications gets optimized away if the delay is * a constant) */static inline void __const_udelay(unsigned long xloops){	unsigned long tmp; 	__asm__ ("mulul %2,%0:%1"		: "=d" (xloops), "=d" (tmp)		: "d" (xloops), "1" (loops_per_jiffy));	__delay(xloops * HZ);} static inline void __udelay(unsigned long usecs){	__const_udelay(usecs * 4295);	/* 2**32 / 1000000 */} #define udelay(n) (__builtin_constant_p(n) ? \	((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 4295)) : \	__udelay(n)) static inline unsigned long muldiv(unsigned long a, unsigned long b,				   unsigned long c){	unsigned long tmp; 	__asm__ ("mulul %2,%0:%1; divul %3,%0:%1"		: "=d" (tmp), "=d" (a)		: "d" (b), "d" (c), "1" (a));	return a;} #endif /* defined(_M68K_DELAY_H) */