URL
https://opencores.org/ocsvn/or1k/or1k/trunk
Subversion Repositories or1k
[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-armnommu/] [delay.h] - Rev 1765
Compare with Previous | Blame | View Log
#ifndef __ASM_ARM_DELAY_H #define __ASM_ARM_DELAY_H /* * Copyright (C) 1995 Russell King * * Delay routines, using a pre-computed "loops_per_second" value. */ extern void __delay(int loops); /* * division by multiplication: you don't have to worry about * loss of precision. * * 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) */ extern void udelay(unsigned long usecs); extern __inline__ unsigned long muldiv(unsigned long a, unsigned long b, unsigned long c) { return a * b / c; } #endif /* defined(_ARM_DELAY_H) */