Date   : Mon, 26 May 1997 09:12:40 +0100
From   : Mike Tomlinson <mike@...>
Subject: Re: illegal opcode 80 at 8023????

In article <199705242158.WAA11814@...>, "Mr W. Wright"
<w.wright@...> writes
>
>I'm having trouble running programs on the BBC emultor by Tom Seddon.      
>After 'mounting' the required disk or programme sucessfully (I'think), the
>program crashes when I try to run a file. I'm doing this by usig the
>command,                                                                    
>                                      
>*RUN :0.$.RAID (for example)                                                
>                                                                   
                   
>This producess the error message                                            
>
>illegal opcode 80 at 8023'                                      
>                   

That's the clue.  8023 is the execute address of a BASIC program.
You're trying to run a BASIC program, which will contain bytes that are
invalid opcodes.  Change the above to 

CHAIN ":0.$.RAID"

and all should be well.  
          
>                                                                  
>also - where is the '\' key?                                                
>                                                       

It appears in Mode 7 as the "half" symbol - just press the PC's "\" key
as usual.



-- 
Mike
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