RISC OS Open
A fast and easily customised operating system for ARM devices
ROOL
Home | News | Downloads | Bugs | Bounties | Forum | Documents | Photos | Contact us
Account

Sound_QFree

SoundScheduler
» SWI Calls
» Sound_QFree

Sound_QFree

(SWI &401C3)
Entry
No parameters
Exit
R0 Number of guaranteed slots free
< 0 indicates over worst case limit, but may still be free slots

Use

This call returns the minimum number of slots guaranteed free. The calculation assumes the worst case of data structure overheads that could occur, so it is likely that more slots can in fact be used. If this guaranteed free slot count is exceeded this call will return negative values, and the return status of Sound_QSchedule must be carefully monitored to observe when overflow occurs.

Revised on November 13, 2017 01:45:08 by Alan Robertson (52) (49.192.18.196)
Edit | Back in time (1 revision) | See changes | History | Views: Print | Source | Linked from: Sound SWI Calls, SoundScheduler SWI Calls

Search the Wiki

Social

Follow us on and

ROOL Store

Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.

Donate! Why?

Help ROOL make things happen – please consider donating!

RISC OS IPR

RISC OS is an Open Source operating system owned by RISC OS Developments Ltd and licensed primarily under the Apache 2.0 license.

Navigation

  • Home Page
  • All Pages
  • Recently Revised
  • Authors
  • Feeds
Site design © RISC OS Open Limited 2018 except where indicated
The RISC OS Open Instiki theme is based on Insitki's default layout

Valid XHTML 1.0  |  Valid CSS

Instiki 0.19.1(MML+)
This site runs on Rails

Hosted by Arachsys