/usr/share/psychtoolbox-3/PsychBasic/GetBusTicksTick.m is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | function busTickPeriod = GetBusTicksTick
% busTickPeriod = GetBusTicksTick
%
% OS X: ___________________________________________________________________
%
% Return the period of the GetBusTicks clock. The period of the
% GetBusTicks clock depends on your model of CPU and its clock speed.
% For reliable high-precision timing in standard units of seconds use
% GetSecs instead of GetBusTicks.
%
% GetBusTicksTick returns the period of the GetBusTicks clock. The
% frequency is found in the hw.busfreq field of the struct returned by
% Screen('Computer').
%
% OS 9: ___________________________________________________________________
%
% GetBusTicksTick does not exist in OS 9.
%
% WINDOWS: ________________________________________________________________
%
% GetBusTicksTick does not exist in Windows.
%
% _________________________________________________________________________
%
% SEE ALSO: GetBusTicks, GetSecs, GetSecsTick, Screen('Computer')
% HISTORY:
% 04/18/03 awi Wrote GetBusTick.m
% 7/10/04 awi Improved.
% 7/12/04 awi Added OS 9 and Windows sections.
if IsOSX
cInfo=Screen('Computer');
busTickPeriod=1/cInfo.hw.busfreq;
else
error(['GetBusTick function not implemented on platform ' computer ]);
end
|