Bill,
The club100.org site has a page that gives a side by side pinout of the
option rom socket and a regular 27c256. In years past you could buy an
adapter board that would remap the pins. None exists at this time as far
as I am aware.
However, Steve Adolph created REX which is a drop in board that contains
1meg of flash memory. It can hold up to 16 option ROM images and up to
16 RAM snapshots. Definitely something to look in to. It contains Rex
manager which can load images such as TS-DOS through a TPDD. There are
quite a few ROM images for the 100 so it's definitely the way to go.
As far as loading TS-DOS goes, you need a loader. Without a real TPDD
device and a TS-DOS disk, you have limited options. TEENY is a self
contained dos program that will inject TEENY onto your Model 100. TEENY
is able to load and save files from a TPDD server and once it is up and
running you can load TS-DOS or any other machine language code you wish.
As far as an assembler, I'm not the expert by any means in that area.
Most of my work has involved changing the bytes in binary files that
have already been assembled. Virtual-T has a build in assembler so that
would be my first suggestion.
Kurt
On 3/29/2016 10:46 PM, Bill Nobel wrote:
Hi Kurt
Question for a Model T newbie (but not a newbie in a programmer sense). I have
an eprom burner and a bunch of 27c256 eproms. How hard is it, or if you can
reference a schematic to remap the option socket to this eprom.
I have been playing with Byteit assembler on the T alone to transition myself
from a hardcore 6809 programmer to the 8085 (not finding it that difficult
other than not knowing memory layout by heart yet) I do have VirtualT up and
running for my real programs that I have in mind, as well as asm85 on my PC. I
would also like to know if Byteit is my best choice for the assembler on the T
alone (I can’t seem to find a good assembler on the T).
My problem I wish to resolve is to get TS-DOS onto the option rom so I can use TPDD
protocol instead on ASCII/XMODEM transfers. I seem to have good communication
between the PC/Model-T @ 4800 baud for ASCII & 19,200 baud for Xmodem, but have
never gotten any of the TPDD Servers/Clients working..
Bill Nobel
On Mar 29, 2016, at 11:15 PM, Kurt McCullum <kurt.mccul...@att.net> wrote:
The beta version of SARDOS for the NEC is available for download. Gary Weber
put it on the web8201.net site for me.
Kurt
