Lpc2000

--- In lpc2000@yahoogroups.com, "Eric Engler" <englere.geo@y...> 
wrote:
>
> --- In lpc2000@yahoogroups.com, "rtstofer" <rstofer@p...> wrote:
> 
> What was the word size on an 1130, wasn't it 18 bits? Back in 1969
> that nust have been state-of-the-art! Maybe 4K words of core?

It was 16 bits and you could get up to 32k words.  The machine I 
used had 8k words.

> 
> I learned assembler programming on an 1130 and it stunted me for 
life!
> That relative addressing in particular taught me bad habits.

Yes, reentrancy was limited!  BSI label stored the instruction 
counter at label and began execute at label+1.

Every machine has warts but you NEVER forget your first machine.  
NEVER!

> 
> When micros came out I couldn't understand why nobody interfaced an
> 029 card reader/puncher to them! But some people did support paper
> tape, and that was almost as good. But paper tape kept kinking and
> jamming. I guess you could choose your poison: the nasty paper 
tapes
> or the possibility of floor sorting a deck of 1,000 cards!

I did have a paper tape reader and punch on my Altair until I moved 
to audio tape and then to 8" floppies.

> 
> > A year or so back I implemented the T80 core on an FPGA and I 
now 
> > have CP/M running silently using 2 CF devices to implement the 
16 
> > logical drives.  It's fun to visit with old friends: ED, MAC, 
> > FORTRAN, PL/I, MicroShell and, yes, WordStar.
> 
> Any chance this might work on a Spartan-3 board? I may get one of
> their low end boards some day if I get enough free time to actually
> use it.

I am pretty sure it will.  Things need to be reorganized and I 
haven't done it.  But I have a couple of Spartan-3 boards and one of 
these days...

> 
> Eric
>