Re: Linux Post codes during runtime, possibly OT

Mark Hahn
2001-01-26T15:15:24Z

> #ifdef SLOW_IO_BY_JUMPING
> #define __SLOW_DOWN_IO "\njmp 1f\n1:\tjmp 1f\n1:"
> #else
> -#define __SLOW_DOWN_IO "\noutb %%al,$0x80"
> +#define __SLOW_DOWN_IO "\noutb %%al,$0x19"

this is nutty: why can't udelay be used here? empirical measurements
in the thread show the delay is O(2us).