函数逻辑报告

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v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\lib\delay.c Create Date:2022-07-27 08:23:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:__const_udelay

函数原型:noinline void __const_udelay(unsigned long xloops)

返回类型:void

参数:

类型参数名称
unsigned longxloops
167  lpj等于如果Operations with implied preemption/interrupt protection. These* operations can be used without worrying about preemption or interrupt.(loops_per_jiffy)否则loops_per_jiffy
170  xloops乘等于4
171  asm("mull %%edx":"=d"(xloops), "=&a"(d0):"1"(xloops), "0"(lpj*(HZ/4)))
175  __delay(++xloops)
调用者
名称描述
__udelay
__ndelay