26 Apr
2016
26 Apr
'16
5:15 p.m.
I assume you'd have to locate a 32-bit clean rom image from one of the emulator sites,
then break out every 1/4 byte
into a file. You then have to use an external prom programmer to write them. According to
the eBay ad:
"Chips are socketed for individual flashing on a standard eprom programmer with
PLCC32 adapter."
On 4/26/16 3:44 PM, David Griffith wrote:
I have a "MACSIMM" from GGLabs (http://gglabs.us) which I bought from their
Ebay store. Unfortunately they haven't
followed up on my request for information on how to prepare a ROM image for use with the
thing. Has anyone else here
used this or a similar device to hack the ROMs of the Mac SE/30, IIsi, IIci, or IIfx?
It's composed of four 39SF010A
32-pin PLCC chips the special 64-pin SIMM.