Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!ukma!gatech!udel!mmdf
From: iphwk%MTSUNIX1.BITNET@cunyvm.cuny.edu (Bill Kinnersley)
Newsgroups: comp.sys.amiga
Subject: Re: SDB and tracing through the ROMs
Message-ID: <6181@louie.udel.EDU>
Date: 1 Jan 89 01:26:27 GMT
Sender: mmdf@udel.EDU
Lines: 39

[In "Re: SDB and tracing through the ROMs", Bob Page said:]
:
: mcp@ziebmef.UUCP (Colin Plumb) wrote:
: >What I'd really like to do is put breakpoints in the ROMs and work through
:
: Here's something Kim posted around September 86.  Might be useful.
:
: vvvvvvvvvvvvvvvvvvvvvvvvvv from Steve Schoettler vvvvvvvvvvvvvvvvvvvvvvvvvvvvv
:
:                      Making Kickstart RAM writable.
:
:   There are three methods you could use to disable the write protect:
:
: [...]
:
: (2) Replace the PAL with one that had a different equation for the
:     WPRO*.  This has the glamor of not needing any solder.
:     The equation could be set up to never write protect the RAM,
:     but that's probably not such a good idea.
:
:
:    If you like the PAL method (2), you're on your own for now.  I have
: figured out how to make the new PAL, but I can't post the equations
:
: [...]
:                                          Steve Schoettler
:
: Bob Page, U of Lowell CS Dept.  page@swan.ulowell.edu  ulowell!page
: Have five nice days.
:
The Kickstart Eliminator follows method (2).  On a machine in which this
modification is installed, if you boot from the Kickstart disk instead of
the ROMs, the WCS is write-enabled and you can set breakpoints.


--
--Bill Kinnersley
  Physics Department   Montana State University    Bozeman, MT 59717
  INTERNET: iphwk@terra.oscs.montana.edu      BITNET: IPHWK@MTSUNIX1