29 Sep
2011
29 Sep
'11
9:47 a.m.
Chuck,
I came up with a box of floppies labeled for this system. I have a box
of 11 floppies with Fairchild labels in a Fairchild box.
If you still have the means and interest to look at this you are
welcome to them. I don't have a way to deal with them.
The base media is Verbatim 32 sector floppies.
How to get them to you intact is another question. I don't trust
shipping magnetics anymore.
I'll send one note to the list in case anyone else discovered anything
or wants to chime in, reply to me off list if you like to save
bandwidth, or reply here if you like and think it is interesting.
JIm
On 7/25/2010 8:50 PM, Chuck Guzis wrote:
I'm working with an old data sample (ca. 1979) to
a piece of
equipment that I do not have access to. I've identified some bits
and pieces of code and am trying to identify the processor.
Here's what I know. The processor is big-endian and appears to be
byte-addressable. The opcode for CALL appears to be D3 xx xx, where
xxxx is the address of the destination. 2C appears to be load
immediate instruction and is also 3 bytes long.
The code doesn't look tight enough to be a p-code implementation of
any sort.
Does this ring any bells to anyone?
--Chuck