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Groups > comp.sys.acorn.programmer > #5623

Re: FastTickerV rate

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On 16 Dec in article <f1277e6757.DaveMeUK@my.inbox.com>,
   David Higton <dave@davehigton.me.uk> wrote:
> In message <fa557d6757.pnyoung@pnyoung.ormail.co.uk>
>           Peter Young <pnyoung@ormail.co.uk> wrote:

> >On 16 Dec 2018  David Higton <dave@davehigton.me.uk> wrote:
> >
> >> FastTickerV is aa RISC OS Ltd invention that hasn't (yet?) found
> >> its way into RO5.
> >
> >> Does anyone know how many ticks per second it generates?
> >
> >> Alternatively, is anyone running RO6 and is prepared to run this
> >> BASIC prog, which should tell us the rate?
> >
> >> --------
> >> ON ERROR PRINT REPORT$ + " at line " + STR$(ERL): END
> >
> >> SYS "OS_ReadSysInfo", 6, 0, 22 TO,, speed%
> >> PRINT "Number of ticks per second: " + STR$(speed%)
> >> --------
> >
> >> FastTickerV is being discussed in the ROOL "Code Review" forum,
> >> in the context of getting a USB MIDI module with better timing.
> >
> >> Thanks in advance for any help!
> >
> >FWIW in RISC OS 5.25 it responds -83935232, no matter that I have
> >no idea what this all means!

> It means that FastTickerV is not implemented in RISC OS 5.

> You're probably aware of the centisecond timer, and the centisecond
> ticker that drives it.  Without going into detail, RISC OS 6 (and
> possibly 4, I don't know) implemented a faster ticker.  I think it
> will find its way into RO5, sooner rather than later, but we don't
> know how fast ROL's version runs - or if there is any way to set
> its speed, enable/disable it, etc.

Seems to return zero on 4.39 ... on VRPC if that has any effect!

-- 
Martin Avison 
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received. 

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Thread

FastTickerV rate David Higton <dave@davehigton.me.uk> - 2018-12-16 20:34 +0000
  Re: FastTickerV rate Peter Young <pnyoung@ormail.co.uk> - 2018-12-16 21:23 +0000
    Re: FastTickerV rate David Higton <dave@davehigton.me.uk> - 2018-12-16 21:32 +0000
      Re: FastTickerV rate Martin <News03@avisoft.f9.co.uk> - 2018-12-17 00:12 +0000
        Re: FastTickerV rate David Pitt <news@pittdj.co.uk> - 2018-12-17 07:14 +0000
          Re: FastTickerV rate CJE/4D Sales <sales@cjemicros.co.uk> - 2018-12-17 13:48 +0000
            Re: FastTickerV rate David Higton <dave@davehigton.me.uk> - 2018-12-17 21:05 +0000
          Re: FastTickerV rate David Higton <dave@davehigton.me.uk> - 2018-12-17 20:55 +0000

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