NAME

ReadEClock: Get the current value of the E-Clock. (V36)

SYNOPSIS

E_Freq = ReadEClock( Dest )
D0 A0

ULONG ReadEClock ( struct EClockVal * );

FUNCTION

This routine calculates the current 64 bit value of the E-Clock and stores it in the destination EClockVal structure. The count rate of the E-Clock is also returned.

A0 will be left unchanged

This is a low overhead function designed so that very short intervals may be timed.

INPUTS

Dest: pointer to an EClockVal structure.

RESULT

Dest: the EClockVal structure will contain the E-Clock time
E_Freq: The count rate of the E-Clock (tics/sec).

NOTES

This function may be called from interrupts.