| From: | Sam Jordan |
| Date: | 11 Apr 00 at 16:51:03 |
| Subject: | Re: ppc-timing |
Am 11-Apr-00 schrieb Mr.Return:
>Hi !
>Some days (Or weeks ?) ago I asked for a solution for timing on the ppc. I
>thing that I will use the WarpUP-functionality, everything I�m not sure
>about is the relation between the timer and the real world. As far as I
>know the PPCTimer is increased with half the bus speed (means that an
>increase of 33000000 on a 66mhz-ram-board means that 1 second is gone), is
>that right, is it another value or totally different ?
By saying 'use the WarpUp-functionality' you basically say to use
the WarpOS system functions. And these return the time in 'real time'.
GetSysTimePPC has not much overhead and is well-suitable for most
purposes. Only for stuff like intensive profiling it might be better
to directly read the registers. But then you have to do the conversion
yourself.
bye