Difference between revisions of "OSBYTE &74"
m (moved OSBYTE 74 to OSBYTE &74) |
|||
| Line 1: | Line 1: | ||
[[Category:OSBYTE]] | [[Category:OSBYTE]] | ||
| − | OSBYTE &74 (116) - Reset internal sound system | + | OSBYTE &74 (116) - Reset internal sound system/Check for Solidisk RAM |
| − | This call enters with 'some parameter' in X which resets the built in sound | + | Electron: |
| − | + | This call enters with 'some parameter' in X which resets the built in | |
| − | + | sound system | |
| − | + | ||
| − | + | Solidisk ROM/RAM Extension: | |
| − | + | Determine shadow RAM system installed | |
| + | On exit: X='S' - Solidisk ROM/RAM extension | ||
| + | X unchanged - No shadow RAM or Acorn shadow RAM | ||
==See Also== | ==See Also== | ||
| + | * [[OSBYTE &6C]] - Select Master shadow memory | ||
| + | * [[OSBYTE &6F]] - Select BBC B shadow memory | ||
| + | * [[OSBYTE &70]] - Select memory for Master VDU access | ||
| + | * [[OSBYTE &71]] - Select memory for Master video display | ||
| + | * [[OSBYTE &72]] - Select future use of shadow memory | ||
| + | * [[OSBYTE &73]] - Select shadow bank | ||
| + | * [[OSBYTE &74]] - Check for Solidisk shadow memory | ||
| + | * [[Paging in video memory]] | ||
* http://mdfs.net/Docs/Comp/BBC/Osbyte00 | * http://mdfs.net/Docs/Comp/BBC/Osbyte00 | ||
| − | [[User: | + | [[User:WikiSysop|WikiSysop]] 00:25, 29 August 2013 (BST) |
Revision as of 00:25, 29 August 2013
OSBYTE &74 (116) - Reset internal sound system/Check for Solidisk RAM
Electron:
This call enters with 'some parameter' in X which resets the built in
sound system
Solidisk ROM/RAM Extension:
Determine shadow RAM system installed
On exit: X='S' - Solidisk ROM/RAM extension
X unchanged - No shadow RAM or Acorn shadow RAM
See Also
- OSBYTE &6C - Select Master shadow memory
- OSBYTE &6F - Select BBC B shadow memory
- OSBYTE &70 - Select memory for Master VDU access
- OSBYTE &71 - Select memory for Master video display
- OSBYTE &72 - Select future use of shadow memory
- OSBYTE &73 - Select shadow bank
- OSBYTE &74 - Check for Solidisk shadow memory
- Paging in video memory
- http://mdfs.net/Docs/Comp/BBC/Osbyte00
WikiSysop 00:25, 29 August 2013 (BST)
