Korg Poly800/EX800 Users

Ok, I found what was wrong with DAMSx. The problem was between the chair and the computer....

I just declared vectors in place of RST entries at beginning of the symbol file. So DAMSx interprets the data at address 0x0000 as a jump to address 0x06B9...

In fact, RST are not vectors for the 8085, they are entry-points, and the symbol must be different in the table for DASMx.

I just updated my symbol table and now, the EPROM file is disassembled correctly.

Benoit 

--- In korgpolyex@yahoogroups.com, "benoitdmx" <benoit@...> wrote:
>
> Ok thanks Mike
> 
> It means that my 8085 disassembler is... humm... (it reports this sequence as unknown instruction... like most of the RST vectors entries). I did not check in the datasheet to be honnest, just trusted the software
> 
> I will try another disassembler then (for those being interested : the problem I saw comes from DASMx. It worked perfectly to disassemble the 6303 code from my DSS1... but clearly not the case for the 8085)
> 
> Is there a 8085 disassembler you would recommend Mike ?
> 
> Benoit
> 
> 
> --- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@> wrote:
> >
> > It is not corrupt.
> > 
> > 06 B9 is mvi b, 0B9h
> > 
> > 
> > Mike
> > 
> > 
> > 
> > ________________________________
> >  From: benoitdmx <benoit@>
> > To: korgpolyex@yahoogroups.com 
> > Sent: Wednesday, June 26, 2013 8:35 AM
> > Subject: [korgpolyex] EX800 EPROM file corrupted in Files section ?
> >  
> > 
> > 
> > Â  
> > Hello guys,
> > 
> > I started some investigations on the EX800 firmware, and I tried to disassemble the binary file located in the Files section (EX800 firmware)
> > 
> > As far as I can see, the file is corrupted : the first bytes are 06 B9 for address 0x0000 (the reset vector). And there are no instructions with 0x06 prefix in the 8085.
> > 
> > I will try to compare the file with the EPROM content in my EX800, but if somebody already made another dump and can compare it too...
> > 
> > Benoit
> >
>