10 Mar
2016
10 Mar
'16
5:57 p.m.
On 3/10/16, 8:51 PM, "cctalk on behalf of Don North" <cctalk-bounces at
classiccmp.org on behalf of north at alum.mit.edu> wrote:
These last two read commands look awful suspicious to me. A single logical
device block is 512B (or 0x200) so the count
parameter is 0x200 for one block, 0x400 for two consecutive blocks, etc. 0xA00
is five consecutive blocks.
However, 0x0132 (306. bytes) is a partial block read, and 0x3CC8 (15560.) is a
read of 30.+ blocks. So I would speculate
that the code went south prior to these two read commands. Just a guess of
course as I have never done this particular
task. But I would guess that the image you are using has been corrupted in the
process.
Don
Good point, Don. Maybe I?ll re-create the image again and see if that helps. I?m using the
RT11v4 image from the SIMH distribution and it boots just fine (as an RK05 image) under
SIMH.
Rich