17 Feb
2019
17 Feb
'19
4:11 p.m.
On Sun, Feb 17, 2019, 15:52 Al Kossow via cctalk <cctalk at classiccmp.org
wrote:
it depends on the version of 68701
P3 has no protection P5 does
a P3 can be read with a Data I/O Unisite
http://matthieu.benoit.free.fr/pdf/MC68705P5_Bootstrap_ROM_Listing.pdf
The P5 is more involved. You put it into factory test mode, feed it a NOP
instruction
and it will output the rom data on the I/O pins.
A variation of that will work on other parts in the series.
Thanks for the info! Pardon the na?ve question, but will this procedure
work for the 701? Not sure the differences between in and the 705.
Kyle