20 Dec
2012
20 Dec
'12
12:07 a.m.
On Wed, 19 Dec 2012, Richard wrote:
As I understand it, it's a re-implementation of
the 6800 using AMD
29xx bit slice parts. There is quite a bit of documentation on the
Yes, but not 1:1. First, the opcodes found in the ROMs don't give much
sense to me (when compared with the opcodes in the M6800 book). Second, I
don't see how a M6800 can be expanded to a 16 bit data path (what I
imply). So there must be something "interesting" in this design.
AMD 29xx bit slice family of processor parts. There
is documentation
on bitsavers: <http://bitsavers.trailing-edge.com/pdf/amd/_dataBooks/>
I have those books in the shelf. But I don't want to understand the 2901,
I want to understand the 4052.
Are these different from the ones stored currently on
bitsavers?
<http://bitsavers.trailing-edge.com/bits/Tektronix/405x/>
I'd say yes, they're very different. At least the part numbers don't
match (even the board numbers are different), and the contents is similar
but not the same.
Christian