Re: pfInitVClock question

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Michael Jones (mtj++at++babar)
Sat, 18 Feb 1995 13:14:28 -0800

On Feb 18, 11:27am, Salvador Cabaruvias wrote:
> Subject: pfInitVClock question
:Hello everyone,
:
:I have a simple question about pfInitVClock, the Reference, pg 259 says:
:
::pfInitVClock sets the vertical retrace counter to ticks and enables CPU
::interrupts from the graphics pipeline.
:
:If the video controller is set to 50Hz via setmon, then to get a 50Hz
interrupt
:via pfVClockSync, should I set ticks = 1 (1 = 50hz) or do I set ticks = 50 (50
:ticks = 50Hz).
:
>-- End of excerpt from Salvador Cabaruvias

1 "tick" of the video clock == 1 vertical interval (1/50th sec. in your case)

-- 


Be seeing you,      Phone:415.390.1455  Fax:415.965.2658 M/S:8U-590
Michael T. Jones    Silicon Graphics, Advanced Graphics Division
mtj++at++sgi.com         2011 N. Shoreline Blvd., Mtn. View, CA 94039-7311

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