VAX-11/730

[Tony Duell]

> 
> Tony wrote:
> > However, the PALs in an 11/730 are not protected (the security fuse is
> > intact), and when I had access to a good PAL programmer, I actually
> > desoldered all the PALs in my 11/730 and read them out. So the PAL
> > equations would be trivial to reconstruct given the schematics, which are
> > on Manx.
> 
> There is a DOS executable floating around called JED2EQN that does this
> for the simple (early) PALs.  It was part of the National Semiconductor

Sure, I have it somewhere. It came with the (binary-only) software for 
the Elektor GAL programmer. There was also a simple PAL/GAL assembler, a 
PAL-to-GAL translator, etc. I think it was a version of Opal-jr

>From what I remmeber, the main bug (maybe in the docs, they were not at 
all clear) was that it wouldn't take a label file to name the pins. It 
insisted on calling them I1, I2, etc for the inputs, O1, O2, etc for the 
outputs. This was trivially got round by running the output of JED2EQN 
through sed on a linux box with the appropriate script to replaec I1 with 
its name, etc.

I can;t rememebr if I ever ran the 11/730 PALs through this. I was 
certainly going to, but I may have been waiting for schematics to get the 
signal names.

-tony