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Found these inside a non-working 71B
03-14-2018, 03:56 AM
Post: #80
rprosperi Offline
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RE: Found these inside a non-working 71B
(03-14-2018 03:39 AM)MikeSD Wrote:  Regarding FREE:PORT (0.04) That doesn't work but .05 and .06 do.

Interesting. Perhaps the IL Mailbox (usually hidden port 0.04) must stay at that port address, and the added RAM picks up at the next available port (0.05 & 0.06).

Can you try SHOW PORT (after FREE-porting both 32K banks)? This should confirm the HP-IL ROM is 16KB, type=2, PORT(0.07) which should clarify all remaining unknowns.
--Bob Prosperi
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RE: Found these inside a non-working 71B - rprosperi - 03-14-2018 03:56 AM
What's U10? - Dave Frederickson - 03-15-2018, 03:43 PM



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