200 option rom is the same socket and same pinout.
But the main rom isn't just a 27C256. There is a 2nd chip also for
something like 40 KB total. But I don't know more than that so maybe the
32KB main rom can still be considered like any other single chip main
rom and the extra 8k is fully separate application code (Multiplan), or
maybe there is code mixed across both chips.
That still wouldn't prevent doing a date patch on just one chip if you
didn't change anything else, and if both date digits were in the same chip.
But for instance the REX main rom feature docs show how it's more
complicated to disable the main rom and take over it's function, as you
have to disable 2 chips and watch 2 /CS lines that used to go to them.
This probably explains why 200 ram banks are only 24K max, not 32.
--
bkw
On 3/13/20 2:23 PM, Mike Stein wrote:
Yeah, I was just wondering whether it's in a socket and if the option
ROM mechanism is the same; sounds like yes?
----- Original Message -----
*From:* Kurt McCullum <mailto:ku...@fastmail.com>
*To:* m100@lists.bitchin100.com <mailto:m100@lists.bitchin100.com>
*Sent:* Friday, March 13, 2020 2:06 PM
*Subject:* Re: [M100] T-102 is here!
T200 is a standard 27C256 ROM. I did a patch on mine before I sold it.
On Fri, Mar 13, 2020, at 10:51 AM, Mike Stein wrote:
There's at least one solution for the two versions of the M100
that lets you both add TS-DOS in ROM and also patch the main ROM
with the Y2K and a couple of other fixes.
Unfortunately in the T102 it requires unsoldering the system ROM,
not something everyone's keen or comfortable doing.
I've never looked at the T200 to see what It would require.
m
----- Original Message -----
*From:* Tom Wilson <mailto:wilso...@gmail.com>
*To:* m...@bitchin100.com <mailto:m...@bitchin100.com>
*Sent:* Friday, March 13, 2020 1:07 PM
*Subject:* Re: [M100] T-102 is here!
file transfer software is at the top of my list. Is TS-DOS the
best option? Are there any really useful modern custom ROMs
that add fixes or features, like the Y2K century fix?
On Fri, Mar 13, 2020 at 9:48 AM Mike Stein
<mhs.st...@gmail.com <mailto:mhs.st...@gmail.com>> wrote:
__
Just curious: what option ROMs do you want to use?
----- Original Message -----
*From:* Tom Wilson <mailto:wilso...@gmail.com>
*To:* m...@bitchin100.com <mailto:m...@bitchin100.com>
*Sent:* Friday, March 13, 2020 12:40 PM
*Subject:* Re: [M100] T-102 is here!
Yes, I’ve got a Rex in order. I also have a Model 200
on the way. So I’m trying to decide whether to get
another Rex. I got a smoking deal on both this
computer and the 200, and the Rex actually costs more
than the computer.
I’ll probably go ahead and get a second Rex, but i was
hoping for something a little less expensive for a
machine that will likely sit on the shelf and look
pretty 90% if the time.
On Fri, Mar 13, 2020 at 8:43 AM Gregory McGill
<arcadeshop...@gmail.com
<mailto:arcadeshop...@gmail.com>> wrote:
rex is available at arcadeshopper.com
<http://arcadeshopper.com> for that option rom socket
Greg
--
Tom Wilson
wilso...@gmail.com <mailto:wilso...@gmail.com>
(619)940-6311
K6ABZ
--
Tom Wilson
wilso...@gmail.com <mailto:wilso...@gmail.com>
(619)940-6311
K6ABZ
--
bkw
