What hardware is at 0x01000010 ?

[Doobrey]

I've been trying to figure out what the 'unused' exec is for in the 3.9bb2 romupdate.
 As far as I can tell, it has flags that don't meet any of the tests that Setpatch does (for identifying /matching  the correct residents to update for the machine it's running on).
 Now for nerdy stuff..
 It appears to be identical to the A1200 version of exec v45.20 with one exception.
 Right after it does the flash/debug rom check and PCMCIA bootrom check, it writes to 0x01000010 and 0x01001010 before carrying on with the normal execbase checks etc.


My initial thoughts were maybe disabling maprom on a turbo card, but I didn't see anything in Piru's Blizkick sources that matched the address.
It just seems strange, writing to ZIII space before expansion has configured anything, so it's gotta be for a specific card.

Any clues to what machine it's for, or what lies at that address?

[Doobrey]

Checking for ram on accelerator boards?

That was one of my first thoughts too, but it only writes to those addresses and doesn't read anything back..plus exec never normally checks for fast ram, that's expansion.library's job...my poor ickle brain hurts.