[rescue] IPX boot prom image 525-1177 earlier than 04?

Sandwich Maker adh at an.bradford.ma.us
Sun Jan 15 14:14:34 CST 2017

" From: Peter Stokes <peter at ashlyn.co.uk>
" I guess there is a way of mapping the boot rom into memory space and running a
" forth loop to print the contents from the ok prompt on a serial console such
" as Putty, then copy/paste the results to give a binary hex output, but no idea
" of the mapping or the forth loop required, maybe someone here can help?

this puts me in mind of a little program i ran as part of bootup on my
ss2, fcon:
#! /usr/bin/sh
eeprom 'nvramrc=probe-all install-console
: cache-page dup pgmap@ cacheable swap pgmap! ;
up@ cache-page
here origin do i cache-page pagesize +loop
eeprom 'use-nvramrc?=true'
exit 0
its objective was to run warm boots out of ram, as it was faster than
bootrom.  i got this from somewhere and only vaguely understand how it
works; i have only the most superficial knowledge of forth but perhaps
it holds a clue.
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought

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