[General] Disassembler for NEC uPD70320 V25 microcontroller

[nigelmercier]

I have a device with an NEC uPD70320 V25 microcontroller.

I have a copy of the EPROM for this device, and I know it contains a data table. The data table is out of date, so I'd like to have a shot at updating it. To do this I really need a disassembly.

Does anyone know of a V25 disassembler that will run in Windows?

Note: This is for my own use only.

 

[FvM]

V25 is 8086 core.

 

[nigelmercier]

V25 is 8086 core.

OK, any recommended 8086 disassemblers that will run in Windows 7?

Preferably one that will locate the data, and insert labels etc.

 

[FvM]

Any PC disassembler, starting with DOS debug.

 

[betwixt]

Try searching for 'sourcer' from 'V communications', it was a commercial program but seems to have been abandoned several years ago. It does a reasonable job of disassembling PC code, including finding labels and tables. By default it tries to add OS calls by name and it assumes things like interrupt vectors are in known places but it gets all this information from a text file which you can edit if it isn't PC code or you know where certain addresses are.

I have a copy from many years ago but I'm not sure where to get it now, a search should find something.

Brian.

 

[nigelmercier]

Try searching for 'sourcer' from 'V communications'....

I got a lot of hits for this, some of them looked very dodgy. I'm a bit rusty with DOS, so a GUI would be an advantage.