OSBYTE &74

OSBYTE &74 (116) - Reset internal sound system/Check for Solidisk RAM

   Electron:
     This call has no parameters, and resets the built-in sound system
   
   Solidisk ROM/RAM Extension:
     Determine shadow RAM system installed
     On exit:
         X='S' - Solidisk ROM/RAM extension
         X=&FF - No shadow RAM or Acorn shadow RAM

See also

• OSBYTE &49 - Check for Integra-B shadow memory
• OSBYTE &6C - Select Master/Integra-B 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

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Jgharston (talk) 01:14, 4 April 2015 (UTC)