THank you, and thanks to the other chap who sent
me the 2 pages of
schematic. I how have the pinout of the Lucy IC, which will make sorting
out the hardware a lot easier. Programming information (internal
registers, etc) would be handy, so if it ever turns up, I am still
looking for it...
I can dump the EPROM of the videotext terminal if you feel like. it has
a 8039 or something like that.
Hmm... I am not a programmer....
Yes, I could disassemble the code. Given a scheamtic of the device it is
used in, I could probably make a guess as to what various routines are
doing. But then I would find, I suspect, routines that, say, initialises
the SAA5070 by writing a numebro f values to it, and it would not be at
all obvious what each value means.
Actually, I do ahve the code from a 6502 (well, 650x, it's one of the
smaller address bus versions) based prestel set here. One reason for
wanting the SAA5070 data sheet it so make sense of that.
-tony