OSBYTE &74

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 (talk) 13:35, 8 March 2015 (UTC)