home *** CD-ROM | disk | FTP | other *** search
- Title: VIDCCLOCK
- Author: Owen Smith
- Version: 0.04
- Title From: Documentation
- Author From: Documentation
- Version From: Documentation
- Supplier: Owen Smith (osmith@acorn.co.uk)
- Date: 01/03/92
- Keywords: Environment managers; Resource managers;
- System monitors
- Shareware: No
- Machine: Archimedes
- Operating system: RISCOS
- Memory requirements:
- Peripherals needed:
- Other s/ware needed:
- Directory: micros/arch/riscos/a/a249
- Date mounted/updated: 24/02/93
- File names: a249.arc
- Unarchived files: 5
- Unarchived size: 14 Kbytes
- Omissions:
- See also:
-
- -------------------------------------------------------------------------------
-
- Acquiring the package:
-
- Download the uuencoded file and extract using SparkPlug 2 (see the "tools_help"
- file in arch/riscos/tools for further info).
-
-
- Description:
-
- VIDCclock provides integrated software control of AtomWide and compatible
- Turbo VIDC hardware when the system concerned is fitted with RISC OS 2.01 or
- later. It does this by sitting on Service_ModeChange, reading the
- VIDCClockSpeed VDU variable, and switching the VIDC clock to 24 or 36 MHz as
- appropriate. This requires that the modes you use are in A540 VIDC list
- format so that the kernel knows what the VIDC clock rate should be. Sound
- will then play at the correct pitch and speed in 36 MHz modes.
-
- Also included is the source code and documentation describing the new VIDC
- list format.
-