Hi David,
Which BIOS version are you using?
The legacy support for DSP/BIOS is being phased out in the latest versions of SYS/BIOS, so I just wanted to make sure that you are aware of that.
Depending on your BIOS version, you might have a copy of the "Legacy Migration Guide." This doc explains about how to transition from a DSP/BIOS app to a SYS/BIOS app, as well as providing a lot of details on the legacy support layer.
I see the doc here in my SYS/BIOS 6.37 install:
bios_6_37_02_27\docs\Bios_Legacy_App_Note.pdf
Steve
