Re: Laser UDC Documentation

["Henry" <apl2research(.a.t.)comcast.net>]

Hey David.

Oh, the patch was your own work?  Neat.  Would you mind sharing the ROM 
code?  I'd like to have a section on my Site just for the UDC.  Your patch 
ROM would be a nice option for people.

Same with the custom IIe ROM(s?).  I'm sure there are other people out there 
who would like the reverse Slot boot feature.  Maybe I can make a switchable 
ROM option card like Bill did with the IIe Character Generator ROM.  Just 
flip a jumper and your IIe will boot up or down the Slots.

Please get in touch with me and we can discuss the ideas or feel free to 
upload the ROM files if you have them handy.  I, and I'm sure the community, 
would really appreciate it!

-- 
Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

"David Wilson" <mcs6502@gmail.com> wrote in message 
1148888759.782760.101080@y43g2000cwc.googlegroups.com">news:1148888759.782760.101080@y43g2000cwc.googlegroups.com...
> Henry (.a.t.) wrote:
>> You know?  Maybe the 'patch' David spoke about?
>
> Unlikely as the 40 track patch was all my own work and only exists on
> my card...
> When I was looking at the code I found what looked like the DIB for the
> UniDisk 3.5 so I have no idea why I couldn't get it to work.
>
>> One nice feature of the controller was if it didn't find a disk in a 
>> 5.25"
>> drive it would 'skip' to the next available boot device as the IIgs does
>> when it's set to 'Scan' mode in the Slots menus.
>
> Yes, most recent (if the mid 80's can be considered recent) drive cards
> have the skip if no bootable disk found (my Cirtech SCSI cards don't if
> no powered up drive is on the bus because they support multiple
> computers on the same bus - I must find the explanation in the manual).
> The Apple RAMDisk (Slinky) card can do it (I know as I have the
> source), the Apple Rev C and HS SCSI cards can do it (I think - yes,
> just found it described in the SCSI card Tech Ref manual). In one of my
> IIe systems I have a Cirtech SCSI card (in slot 4) and Disk ][ card (in
> slot 6 for maximum compatiblity) and to get it to auto boot from the
> SCSI drive I had to modify the IIe firmware and reverse the slot scan
> from 7654321 to 1234567.
>