23 Nov
2025
23 Nov
'25
8:51 a.m.
Hi Glen,
Yes, and I have looked over it several times. It does have quite a bit of
info, but it doesn't go into much detail for the R/W register.
I also found a student guide that includes the BDV11 and it help shed some
light on how the code in the ROMs is segmented.
It helped me visualize more how it is done. But I am still missing things
like the details for the R/W register.
https://wwcm.synology.me/pdf/EY-DX056-SP-002&J6269-A&EY-DX052-SG-00…
- Peter
On Sun, Nov 23, 2025 at 10:52 AM Glen Slick via cctalk <
cctalk(a)classiccmp.org> wrote:
On Sun, Nov 23, 2025, 6:32 AM Peter Ekstrom via cctalk
<
cctalk(a)classiccmp.org> wrote:
Does anyone know if there is any programming
information about the BDV11
card?
I have disassembled the ROM files for it and I see they do various
operations with the
registers on the card, but it is not clear to me exactly what they are
doing.
- Peter
Did you already find this?
http://www.bitsavers.org/pdf/dec/qbus/EK-BDV11-TM-001_Mar78.pdf