/* Copyright (C) 1986 by M. J. Shannon, Jr.
** Permission to distribute for non-commercial uses granted as long as this
** notice is retained.  Violators will be prosecuted.
*/

#include	"mpu.h"

/* mpu_put(byte):
**	put out a single byte command & wait for the ack.
*/

void
mpu_put(cmd)
unsigned char cmd;
{
	long counter;

	(void) mpu_drr();
	outp(MPUP_COMD, cmd);
	for (counter = 0xFFL; counter != 0; --counter)
	{
		if (mpu_dsr())		/* timed out */
			break;
		if (mpu_dget() == CMD_ACK)
			break;
	}
}