Re: [M100] mvt100 and the pc terminal

[jonathan.y...@telia.com]

Hello WIll,
I think I have played around the most with wordstar 3.3.  I never tried 4.0 and 
that was different source code which didn't agree with my poking around with 
DDT.  I've seen 3.3 on different web sites for download. You can patch some of 
the keyboard lookup tables to agree with the M100 keyboard, arrows and such and 
so that the DEL key deletes the character under the cursor and the backspace 
key erases the previous character.  You would to look at  'Wordstar 
Customization Notes' (there is a copy on archive.org) and while it is for 3.0, 
the general layout is the same and the lookup tables can be found in the .com 
file with a bit of searching even though the addresses in 3.3 are not the same 
as 3.0.  I don't think wordstar would be happy with a 40 x 8 character display. 
 
I posted on this before and it is in the archives somewhere
Jonathan
Original Message
>From : will.s...@gmail.com
Date : 2024-03-19 - 22:34 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] mvt100 and the pc terminal
 Hi Jonathan,
 
 
 What version of Wordstar?
 
 
 Thanks,
 
 
 Will
 
 
 On 3/19/24 3:42 AM, 
 jonathan.y...@telia.com wrote:
 
 
 
  If you are going to play a lot with CP/M on the M100, the MVT100 device is a 
good thing to have, since a LOT of the CP/M programs want a bigger display.  
With the MVT100, you can get 80x24 characters after you connect a VGA device.  
I have used a VGA to HDMI converter and actually can use an android tablet (or 
even my phone) as a display.  You can run Wordstar under CP/M on the M100.  
CP/M adventure got a bit messed up on the M100 screen but on the MVT100 it was 
just fine.
  
 
 
  
 
 
  The device also can take a keyboard and then it runs more or less like a real 
VT100 but I don't think the gold key etc. are mapped..
 
 
  
 
 
  Jonathan
  
 
 
  Original Message
  
 From : 
  will.s...@gmail.com
  
 Date : 2024-03-19 - 01:07 (CEST)
  
 To : 
  m100@lists.bitchin100.com
  
 Subject : [M100] mvt100 and the pc terminal
  
  
  
  I'm a little confused about the MVT100... 
 on this page:
https://bitchin100.com/wiki/index.php?title=MVT100_Desktop_Application
 It sounds like it's a terminal emulator for connecting to the M100 over 
serial. But somewhere else I saw it as some kind of adapter to talk to VGA. I'm 
guessing it's both - adapter gadget provides the VGA out thing and provides a 
server for the pc terminal app? I downloaded the software and it runs fine on 
linux under wine (to the degree that it appears to start up and not crash. I 
couldn't figure out how to get it to talk to my m100... so I'm guessing I need 
the hardware gadget in addition to my rexcpm to get it working?
 Thanks,
 Will
  
 
 

Re: [M100] mvt100 and the pc terminal

[jonathan.y...@telia.com]

If you are going to play a lot with CP/M on the M100, the MVT100 device is a 
good thing to have, since a LOT of the CP/M programs want a bigger display.  
With the MVT100, you can get 80x24 characters after you connect a VGA device.  
I have used a VGA to HDMI converter and actually can use an android tablet (or 
even my phone) as a display.  You can run Wordstar under CP/M on the M100.  
CP/M adventure got a bit messed up on the M100 screen but on the MVT100 it was 
just fine.
The device also can take a keyboard and then it runs more or less like a real 
VT100 but I don't think the gold key etc. are mapped..
Jonathan
Original Message
>From : will.s...@gmail.com
Date : 2024-03-19 - 01:07 (CEST)
To : m100@lists.bitchin100.com
Subject : [M100] mvt100 and the pc terminal
I'm a little confused about the MVT100... 
 on this page:
https://bitchin100.com/wiki/index.php?title=MVT100_Desktop_Application
 It sounds like it's a terminal emulator for connecting to the M100 over 
serial. But somewhere else I saw it as some kind of adapter to talk to VGA. I'm 
guessing it's both - adapter gadget provides the VGA out thing and provides a 
server for the pc terminal app? I downloaded the software and it runs fine on 
linux under wine (to the degree that it appears to start up and not crash. I 
couldn't figure out how to get it to talk to my m100... so I'm guessing I need 
the hardware gadget in addition to my rexcpm to get it working?
 Thanks,
 Will

Re: [M100] looking for assembler/debugger

[jonathan.y...@telia.com]

I learned a lot from a (paper) copy of 'Mastering CPM' by Alan R. Miller.  
Found a pdf at
https://oldcomputers.dyndns.org/
Jonathan
Original Message
>From : dpl...@alum.mit.edu
Date : 2024-03-18 - 13:57 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] looking for assembler/debugger
 I also like "8080/8085 assembly language subroutines" by Lance Leventhal 
 https://archive.org/details/80808085assemblyleve/mode/1up
 
  On Fri, Mar 15, 2024 at 6:32 AM Anthony Coghlan <
  coghl...@gmail.com> wrote:
  
 
 
  
   
What a great thread!  :)  Very late to the party but will add a couple of 
books.  Not M100-specific, but if you’re interested in a couple of very good 
general 8085 books, I would recommend these.  The first is a self-contained 
course (probably a quite popular textbook originally), while the second is a 
more compact reference.  I believe I found both in PDF on 
archive.org (Internet Archive).
   
   

   
   
*  Judi Fernandez and Ruth Ashley, _Introduction to 8080/8085 Assembly 
Language Programming_.
   
   
*  Noel Morris, _Pocket Guide Assembly Language for the 8085_.
   
   

   
   
I’ll have to check out John’s _Inside the Model 100_ reference.
   
   
 
   
   
Best wishes,
   
   
Anthony
   
  
  
   

   
   

   
   


 
  On Thu, Mar 14, 2024 at 10:01 AM David Plass <
  dpl...@alum.mit.edu> wrote:
  
 
 
  
   I've forked a fork of a fork of a python-based 8085 assembler: 
   https://github.com/dplassgit/8085-Assembler-trs80-100 which generates a 
BASIC program that you can use to poke your assembly language program into 
memory.
  
  
  
   
On Wed, Mar 13, 2024 at 6:18 PM <
bir...@soigeneris.com> wrote:

   
   
There are a few assemblers that can be hosted on the M100. For my use I 
created an extension for VS Code that supports Telemark Assembler (TASM). TASM 
has been around since the 1980s, still maintained by the original author as of 
a few years ago. 


 You can download the extension from within VS Code or from Github. The Github 
repo also has a shareware copy of TASM and some instructions.


https://github.com/Jeff-Birt/TASM_vsCode_Extension


 Jeff Birt


 -Original Message-

 From: M100 <
m100-boun...@lists.bitchin100.com> On Behalf Of Will Senn

 Sent: Wednesday, March 13, 2024 3:05 PM

 To: 
m100@lists.bitchin100.com

 Subject: [M100] looking for assembler/debugger


 Hi All,


 I'm studying the 8085 microprocessor and its assembly language right now 
(Engineering Funda on Youtube with Jubin Mitra's 8085 Sim). It's going fine, 
but I realize that I have an m100 laying around with an actual OKI

 80C85 in it to play with. What I can't remember is, whether or not there's an 
assembler and debugger available for it laying around somewhere? Also, is there 
a book out there on m100 assembly language programming? When I last messed 
around with the system, I was doing BASIC and didn't get into the processor 
much. Now, I'm interested and looking for an assembler - help appreciated.


 Thanks,


 Will




   
  
 

   
  
 

Re: [M100] 19.2Kbps on the Tandy 102

[jonathan.y...@telia.com]

Hi Brian,
Thanks for the details.  Looks like the level shifter board is the key to the 
size, but I'll confess I never thought of mounting a DB 25 directly on the case 
of the pi (purchased or otherwise).  I looked around and those boards are 
available, just need to decide for the best way to purchase one (I'm in the 
Sweden so orders from outside the EU get hit with import duty AND a handling 
charge).
I've used Pareg Patel's z80 instruction set emulator for emulating CPM under 
Unix and I've run it on several environments with no hiccups (AIX, Digital, and 
Linux of course).
Jonathan
Original Message
>From : bbrin...@gmail.com
Date : 2023-12-13 - 22:34 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] 19.2Kbps on the Tandy 102
 Haha - Glad you like it Joshua if I do happen to make more or improve on this 
one I'll let you know. I don't exactly have ADD but what I do seem to have is 
the inability to control what my current interests are and recently it's been 
playing with CP/M on the M100, PX-8 and building up a CP/M emulation 
environment on the TanPi. That was going great till I managed to get my hands 
on one of the MiniNDPs Brian K White made and now I'm all about his recent 512K 
upgrade. Never thought I'd get to play with an NDP so this is exciting stuff. 
 
  
 
 
  I have a WP-2 and have tried to use the TanPi on it, but usually ended up 
frustrated with the lack of needed keys. When doing unixy stuff having pipes, 
curly braces, back ticks etc are handy. The M100 seems to have everything I 
need, although you do have to know to hit shift GRPH - to do a pipe and GRPH ( 
for { etc. 
 
 
  
 
 
  I like ROM-View 80 but for me it's not enough of a payoff to have to 
reconfigure the local terminal settings to accommodate the new layout. The way 
I use the TanPi is primarily for content creation and syncing. I will write 
documents either with a real editor or just by typing cat > file.txt and typing 
away with CTRL-C to stop. Then sync the files with my local storage or the 
cloud when I have WiFi. If I need to do something really heavy I'll use an 
external screen or my VNC session with my phone. 
 
 
  
 
 
  A lot of times when I'm at home I will ssh into my TanPi from my desktop and 
can drag/drop files over SSH, use the real keyboard and monitor for stuff and 
it's quite handy. 
 
 
  
 
 
  It's a fun toy. 
 
 
  
 
 
  Brian
 
 
  
 
 
  
 
 
  On Wed, Dec 13, 2023 at 1:29 PM Joshua O'Keefe <
  maj...@nachomountain.com> wrote:
  
 
 
  > On Dec 13, 2023, at 6:22 AM, Brian Brindle <
  bbrin...@gmail.com> wrote:
  
 > My whole setup is a total kludge / hack that I never expected to use long 
 > term. I was just doing a POC and built the whole thing in about 10 minutes 
 > with stuff I had laying around but here we are almost five years later... 
  
  
 Brian, you may consider this rig a kludge, but I'm jealous and think it's 
gorgeous.  Using the T as a portable terminal with a perfectly capable tiny 
Linux box cleverly attached is a great hack.  I wish I had one of these!  A 
9-pin WP-2 version—what with the 80-column display—would be amazing.
  
  
 Now that I think about it, have you tried using either one of the 80-column 
software setups, like ROM-View 80 or Ultrascreen100?  It might make for an even 
more pleasant terminal experience.
  
  
 Gosh, I'm tempted to ask if you'd slap another one together in your copious 
free time!
 

Re: [M100] 19.2Kbps on the Tandy 102

[jonathan.y...@telia.com]

Hello,

I know it is starting to be off-topic, but some details about how you did the 
pi (I assume a zero-w) and the case with the level-shifter would be nice.  I've 
done this with other components, but I've never gotten anything nearly so 
small.  I have a pi-hat with a level shifter, and it basically doubled the size 
of pi zero.  Something this small and that would plug right into the serial 
port of the m100 would be great.

Jonathan

>Original Message
>From : run@rin.run
>Date : 2023-12-13 - 02:11 (CEST)
>To : m...@bitchin100.com
>Subject : Re: [M100] 19.2Kbps on the Tandy 102
>
>Wow Brian!
>
>This setup with the Pi attached to the back looks amazing. It's attached
>so cleanly as well. I appreciate you doing the `stty' at the end,
>hopefully mirroring your setup will help me get things working better on
>my end.
>
>I do wonder if the fact that you are using the Pi's GPIO pins to do
>serial instead of a USB adapter is part of why your system is working so
>well. If you have a USB adapter floating around, I'd be really curious
>if you got the same results with that connected to the PI instead of
>connecting it directly.
>
>Thanks again for sharing your experience getting this working.
>
>On Tue, Dec 12, 2023 at 05:42:28PM -0500, Brian Brindle wrote:
>>This has come up in discussion a few times so I wanted to show that
>>19.2Kbps on the Tandy 100 is possible with only software flow control.
>> 
>>Here is a video of me creating a 500 line 40 col file that is 20KB,
>>transferring it to the M102 and back again using the 19.2Kbps serial
>>connection. It gets slowed down due to the screen being so slow making
>>it absolutely of no value to be running at those speeds but does
>>demonstrate that flow control can be used on a Linux device in this
>>situation.
>> 
>>Hardware flow control would work best and is what I would recommend but
>>I wanted a device that would work on a stock M100/102 and on a M200
>>where the flow control lines do not work properly.
>> 
>>It's apparently really hard to film, type and remember what to say so I
>>apologize for that..
>> 
>>[1]https://youtu.be/BGxx__Zr1O4
>> 
>>Brian
>> 
>> References
>> 
>>1. https://youtu.be/BGxx__Zr1O4
>

Re: [M100] M100 ergonomics

[jonathan.y...@telia.com]

Hello,
That perl script and whatever else is needed to let the M100 act as keyboard 
input for X windows sounds interesting.  I assume you have the raspberry pi 
video output device showing X?  Would you be willing to share the details?
Jonathan
Original Message
>From : bbrin...@gmail.com
Date : 2023-12-11 - 13:08 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] M100 ergonomics
 I've got several and they get used often. Daily task is usually note taking 
with IDEA! or journaling with the built in text editor. I do use the Ultimate 
ROM II and View80 a LOT.  I also use it pretty extensively for Amateur radio, 
primarily logging and satellite tracking. I also spend quite a bit of time 
messing around in CP/M mode doing weird stuff with DDT. 
 
  
 
 
  I have a raspberry-pi connected that I've dubbed the "Tan-PI". It's got 
several programs on it to do file sharing / TPDD emulation and I have a hacked 
together perl script that sends each key press from the Tandy to the X-windows 
system as keyboard input allowing me to use the M100 as the keyboard to the 
Raspberry Pi system. I will often remote the Raspberry Pi with VNC on my phone 
when I need a "real desktop" to send an e-mail or go to a web stie the tandy 
can't handle from the Linux CLI. 
 
 
  
 
 
  These are my two go-to addons. I use a small USB power bank and this for 
power:
  
 
 
  https://www.amazon.com/gp/product/B0BJDSG28P
  
 
 
  
 
 
  I also have a bunch of these Laptop "Foot" devices. Just drop one at the 
back, middle of the Model-T and it greatly improves the ergonomix. They are 
cheap so I keep one in my bag and one on my desk. 
  
  
https://www.amazon.com/SUPBEE-Universal-Computer-Anti-Slip-Ventilated/dp/B085QL2QXS
  
 
 
  
 
 
  
 
 
  
 
 
  On Mon, Dec 11, 2023 at 6:30 AM Gary Wilkinson <
  gpwilkin...@hotmail.com> wrote:
  
 
 
  My T102 is connected as a terminal to my VAX4000. I have a DVI connected to 
an LCD screen with composite video, so I get 80 column full screen text. Very 
useable.
  
  
 Sent from my iPhone
  
  
 > On 11 Dec 2023, at 10:25, Lee Osborne <
  leeosbo...@fastmail.co.uk> wrote:
  
 > 
  
 > 
  
 > I use mine quite a lot for journalling and writing articles, mainly because 
 > it has the best keyboard of any device I own. I find that a desk or table is 
 > fine as long as the light is reasonably good. I can type faster on it than 
 > most other computers or keyboards.
  
 > 
  
 > Lee
  
 > 
  
 >> On Mon, 11 Dec 2023, at 00:47, runrin wrote:
  
 >> Hey all!
  
 >> 
  
 >> I was wondering if people would be willing to share how they typically
  
 >> use their Model Ts.
  
 >> 
  
 >> I've found that it's pretty difficult for me to find a comfortable
  
 >> position to use my Model 100 for any length of time. I'm always bending
  
 >> forward to get a better view when I sit at a table or desk, and when
  
 >> it's on my lap the lack of palmrest causes the keyboard to slide too
  
 >> close to my body making it hard to type.
  
 >> 
  
 >> Do you typically only use them on desks? Do you use yours on your lap?
  
 >> Do you use a lap desk? Any tips for how you comfortably use a Model T
  
 >> for longer stretches (30+ minutes) would be appreciated.
  
 >> 
  
 >> Thanks!
  
 >> 
  
 > 
  
 > Lee Osborne
  
 > West Lothian, Scotland
  
 > 07960 096282
  
 > 
  leeosbo...@fastmail.co.uk
  
 > www.journeyman.online/services
  
 

Re: [M100] Hello! (John R. Hogerhuis)

[jonathan.y...@telia.com]

Hello,
This is probably off topic but the Psion devices meet the 'small computer that 
runs on cheap batteries' but the keyboard isn't as nice as a M100 and it is 
harder to read under some conditions.  I've been known to play with a 5mx
Jonathan
Original Message
>From : roland@rolandsrecycling.center
Date : 2023-04-19 - 05:30 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] Hello! (John R. Hogerhuis)
P {
margin-top: 0;
margin-bottom: 0;
}
  Totally understand, and I'll keep it to myself. 
 
 
 Thanks again, I was already pretty excited to find another "small computer 
that runs on cheap batteries", that's been my obsession for a long time, and 
then finding out there are a few ways to interface with my other favorite 
device has me pretty stoked. That and the fact that this thing does a serial 
console connection so easily, that's going to be a lot of fun too. Wondering 
how it took me so long to finally try one. 
 From: M100  on behalf of John R. Hogerhuis 

Sent: Tuesday, April 18, 2023 12:57 PM
To: m...@bitchin100.com 
Subject: Re: [M100] Hello! (John R. Hogerhuis)
 
   
 
 
  
   
   
   

 On Mon, Apr 17, 2023, 9:05 PM Roland Anderson 
 wrote:
 


 
  
Sorry again about all that, long story short my mail relay gave me a 
bounceback and I thought I had hit a bad address, but turns out it was just my 
awful excuse of a mail server being weird. Thank you again for sending me a 
copy, I really appreciate it. 
   
   
 Would it bother you if I upload it to the PalmDB archive site? It's a pretty 
unique piece of software, I'd hate for it to get lost somehow. 
  
  
   
 Roland
  
  
  
 

   
  
  
   
  
  
   No thank you :-) I have not granted any license to redistribute DLPilot.
  
  
   
  
  
   That said everyone who has hit me up about getting a copy in recent years 
has gotten one. I give out probably 2 copies per year. 
  
  
   
  
  
   -- John.
  
 

Re: [M100] R2.2 update for REX# and REXCPM

[jonathan.y...@telia.com]

I agree with Brian, consistency with the system that can't be changed is 
probably the best.  At least there is consistency (even if it is confusing to 
someone used to MMDD).

Jonathan

>Original Message
>From : b.kenyo...@gmail.com
>Date : 2023-01-31 - 10:41 (CEST)
>To : m100@lists.bitchin100.com
>Subject : Re: [M100] R2.2 update for REX# and REXCPM
>
>Cosistency with the rest of the system which can't be changed is 
>definitely a legit point. Thanks for clarifying.
>
>-- 
>bkw
>
>On 1/31/23 03:03, Cedric Amand wrote:
>> As I'm the one who started the date debate :) let me clarify what my 
>> feedback to Steve was
>> In the context of my M200, there are multiple things that are 
>> confusing with dates,
>> First of I consider that the system time, the one reported by print 
>> DATE$ , should define the date format, otherwise you end up with 
>> multiple date formats.
>> As such, REX uses a different format than the system one (on my system, 
>> idk about everyone else's)
>> I fully realize rex is probably written in machine language, that nobody 
>> asks for internationalisation or user settings, all my feedback was is 
>> that it's using a different date format than the system here, which is 
>> confusing ( can you tell me what the date is when system date 
>> is 21/12/22 and REX date 222112 ? )
>> You end up with not only one but two ambiguous date formats.
>> I also remember an hidden part of REX (I think info on file in the tsdos 
>> part ?) uses yet another format, but I can't replicate this this morning 
>> as my tpdd is buried in a box.
>> More than that, and this is new feedback, when saving a new RAM image or 
>> overwriting one, REX does not update the DAY of the date, only the month 
>> and the year. I've reproduced that today.
>> I realize that out of context, this "date format" is a small 
>> problem, REX is now used internationally, and there are basically two 
>> Model T platforms (EU and US).
>> For my M102 I switched the ROM to the US one. Quite frankly - this 
>> creates more problem than it solves. But it makes REX work.
>> For my M200, with the help of Steve, I was able to keep my EU ROM and 
>> have REX working no problem, which is great for the international users.
>> In short, without interfering with anyone else's REX :) if it would be 
>> possible that REX displays it's file dates then same way the system 
>> does, that'd be great :)
>> Le 2023-01-31 08:32, jonathan.y...@telia.com  a 
>> écrit :
>> 
>> For what it's worth, I also like year month day dates, in part because I 
>> can easily sort them.  ISO 8601 specifies year, month, date, but it looks 
>> like the years are 4 digits
>> 
>
>-- 
>bkw
>
>

Re: [M100] R2.2 update for REX# and REXCPM

[jonathan.y...@telia.com]

For what it's worth, I also like year month day dates, in part because I can 
easily sort them.  ISO 8601 specifies year, month, date, but it looks like the 
years are 4 digits

https://en.wikipedia.org/wiki/ISO_8601

Jonathan
>Original Message
>From : b.kenyo...@gmail.com
>Date : 2023-01-31 - 02:26 (CEST)
>To : m100@lists.bitchin100.com
>Subject : Re: [M100] R2.2 update for REX# and REXCPM
>
>That is a great set of updates.
>Personally I prefer year-first dates so don't assume the illogical way 
>was was a universal preference ;)
>
>But it's a small thing that I also don't think it's worth making 
>configurable. I would have told anyone who cared enough to ask for it to 
>be changed, to get over it and find something more important to worry 
>aboiut. But likewise, I am saying that for myself now that it's the 
>"wrong" way.
>
>Auto-updating the current ram image before loading a different one 
>sounds like one of those tiny things that makes a big difference. 
>Probably very little code to do it, but it makes a whole different 
>convenient usage pattern like keeping a bunch of live ram banks rather 
>than a bunch of backups.
>
>And yet they can still be used as backups & references too, just answer 
>no to update.
>
>Maybe a complementary feature should go along with auto-saving backups, 
>which would be the ability to mark an image read-only, so that you can 
>protect images from accidentally being modified. It sounds like the way 
>the auto backup is done is probably a question that gets asked every 
>time rather than really automatic, but still once that convenience 
>exists, it trains the user to answer quickly by habit, and so the safety 
>lock option would complement and counter that. Or maybe instead of a 
>read-only flag, it's an auto-save flag. For marked images, they always 
>auto-save on exit, and unmarked images don't. Maybe a single flag if 
>it's more than one bit could indicate a few different possible states: 
>auto-save never/always/ask, read-only y/n.
>
>Just thinking out loud.
>
>-- 
>bkw
>
>On 1/30/23 18:19, Stephen Adolph wrote:
>> I'm most of the way through testing a bug fix release for REX# and REXCPM.
>> Current load is R2.1 build 19.
>> 
>> New load is R2.2.  Here's the list of changes (see below).
>> I'll post the upgrade files to the wiki when I am happy it is all 
>> looking good!
>> cheers
>> Steve
>> 
>> 
>>   Bugs
>> 
>>Rel 2.1:  All:  Fix the date display.  Now it is YY/MM/DD. Request is to 
>> change to DD/MM/20YY.  Seems reasonable.
>>Maybe a date format toggle control? "D" in REXMGR menu.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  M100/T102:  Make display tolerant to "hardware scrolling main 
>> ROM".
>>Coded R2.2/ Tested
>> 
>>Rel 2.1:  Interworking with actual TPDD does not work.  Fix pending.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  NEC: noticed that, with only one RAM bank installed, pressing 
>> TAB or BANK causes laptop to hang in MENU.
>>This should not happen.  Probably affects T200 as well.  Yes it did.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  All:  Reduce time on power up before option rom is switched, to 
>> prevent undesired uninstall of option rom.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1: T200: UR-2 support seems like it is broken.
>>Major defect discovered, coding error on my part.  Fixed.
>>Coded R2.2 / tested
>> 
>> 
>>   Feature Requests
>> 
>>Rel 2.1:  Request to put an "Overwrite?" option to allow images to be 
>> saved when one exists already.  Great idea!
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  All:  when switching RAMs, give option to re-save current RAM 
>> or not.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  M100: add quickmenu command to reNAME or KILL a file in MENU.  
>> T200:  add quickmenu command to NAME a file in MENU.
>>Coded R2.2 / Tested
>> 
>>Rel 2.1:  All:  Allow use to de-install the active ROM, leaving no ROM 
>> active.  F6.
>>Coded R2.2 / Tested
>> 
>
>-- 
>bkw
>
>

Re: [M100] M100 Audio / music

[jonathan.y...@telia.com]

Hi All,

Even midi has it's shortcomings though the stream can sound OK if you ignore 
the actual structure of what is shown on sheet music. I play a fair amount of 
Swedish folk music, and the notation on paper is really just a convenient 
notation, and the real music doesn't actually sound like what is on the paper.  
It may be written as 3/4, but the 3 beats get different amounts of time, and 
this actually varies across Sweden.  We talk about 'long one' or 'long two' for 
the beats.  There was someone at the music academy here that actually studied 
this and made a machine to analyze the different lengths of time that the 
individual beats got.  There was at sometime a program that would play the midi 
files that adhered to the paper notation and adjust the timing. I remember 
playing with it once, and it did sound a little more realistic, but still kind 
of stiff. Sometimes you slow down the whole thing at the end of a tune, etc., 
and that CAN be programmed into a midi file but now things are getting 
complicated..

Jonathan

>Original Message
>From : petti...@gmail.com
>Date : 2022-12-29 - 16:08 (CEST)
>To : m100@lists.bitchin100.com
>Subject : Re: [M100] M100 Audio / music
>
>On 12/29/22 6:56 AM, Alex ... wrote:
>> I've got a vintage MIDI synthesizer with the exact same CPU as the 
>> M100. (Korg Poly800)
>> This is actually the reason I bought the T102 I have, as a platform to 
>> learn 8085 assembly. It is absolutely fast enough to process MIDI. The 
>> protocol was designed for and proliferated on computers of this era.
>>
>> In the Tandy's case, the hitch is really getting the UART to go the 
>> right speed. Last time I tried, no combination of timer/divider 
>> settings would get it close enough to 31250 Baud.
>
>Yeah, this was my thought also regarding the baud rate.  The closest you 
>can get is the divide by 5 option which gives 30720 baud ... about 1.7% 
>error.  Of course even if it would work, it also means you need a MIDI 
>synthesizer instead of just the M100.
>
>Ken
>

Re: [M100] Pinenut Wifi / BLE

[jonathan.y...@telia.com]

Hello,
I'm not sure that thing will hook up to a real RS-232.  I looked at the 
schematic and it talked about 3.3 v, which would not drive the RS-232 lines.   
Not sure how you would connect it. But maybe there is a level shifter in it.  
I've found that a lot of things talk about RS 232 but it is things like 0 to 
3.3 or 0 to 5 volts, and not even close to real RS 232.  I know the M100 
doesn't actually get there either, but I know 0 to 5 volts doesn't make it on 
my M100.
I had been looking at this device, in part for a Psion 5 MX but it also for my 
M100 as well.  A 'hat' stuck on top of a Raspberry Pi zero W, plus a power 
supply.  Admittedly most of the work would be done by the Pi (the tcp/ip stack 
etc.) but you could use a terminal program to access a little linux box.  It 
was self-contained, even with a battery!!  I still have to figure out where to 
buy that level-shifter (the SP3232EEP) but most hats I've looked at for the pi 
zero w don't have hardware handshaking.
https://www.kianryan.co.uk/2022-11-28-psion-sidecar-ppp-modem-and-terminal/
Admittedly, this is probably to big to fit in an M100 but I am pretty sure it 
would work.  Increase the size of the battery and power the M100 with it!!
Jonathan
Original Message
>From : hira...@hotmail.com
Date : 2022-12-17 - 15:16 (CEST)
To : m100@lists.bitchin100.com
Subject : [M100] Pinenut Wifi / BLE
I came across this tiny little board on the Pine64 site, and I wonder...
PineNut Wifi/BLE board
this thing is about 1" by 2/3" (25 x 14mm), and as I understand it provides 
wifi and bluetooth, via serial (TTL or UART, I think).
I think it could be mounted internally to the M100 (dunno about M102). Maybe a 
200, too.
IF one could connect it to the modem serial connection, one could then 
theoretically use it to connect via wifi/bluetooth, and switch to the external 
rs232 port, keeping its functionality, with a minimum of "destruction" to the 
M100.
Or maybe, connect it to the barcode scanner, which, if possible for regular 
comms with the module, would leave you able to use the rs232 and the wifi at 
the same time.
I'm interested in any opinions on this, because imo it could massively improve 
the functionality of the M100 (yes, I know the same essential thing is possible 
with some of the wifi-capable arduino boards, but all I've seen of them are 
much larger than this).

[M100] RS-232 to bluetooth

[jonathan.y...@telia.com]

Hello,
I can connect my M100 to a Raspberry Pi, either through a USB-->RS232 adapter, 
or even on the GPIO bus with a suitable level shifter.  I've always done with 
the 'larger' ones but I've been playing a Zero W, which doesn't have the GPIO 
soldered on and only 2 micro USB connectors, one of which is for power.  I've 
thought of trying to connect the M100 via bluetooth, but I thought I would ask 
if anyone has done this.  I can get a console via bluetooth from other bt 
devices (like my android tablet) and the zero 2 has bluetooth on-board, so this 
kind of connection wouldn't need anything hanging off the Pi zero.
 I've seen RS-232 to bluetooth adapters, though the 'cheaper' ones don't really 
conform to the +12 -12 of real RS232. I've toyed with trying an hc-05 and a 
level shifter but maybe it's better to get somethiing that does it all, if this 
is even reasonable.
Jonathan

Re: [M100] Tandy Model 100/102 modem pickup line

[jonathan.y...@telia.com]

Hi,

I have a US M100 but Stephen wanted to be sure I had a US model before he sold 
me the REXCPM, and he said it wouldn't work in a European model.  He didn't 
mention selling me a 'European' version so I assume one didn't exist back then.

I think there are some hardware differences as well, and he sent me some 
pictures.

Jonathan
>Original Message
>From : b.kenyo...@gmail.com
>Date : 2022-02-04 - 03:06 (CEST)
>To : m...@bitchin100.com
>Subject : Re: [M100] Tandy Model 100/102 modem pickup line
>
>Wow, ok, I hadn't considered that someone had replaced the main rom.
>All bets are off in that case.
>
>I would not be surprised if the modem doesn't work at all with the wrong 
>rom installed. The main rom has to match the hardware and the North 
>American main rom does not match the European hardware, and the modem is 
>definitely one of the things, like the keyboard, which is different 
>between countries.
>
>You only do something hacky like that fully accepting that you are 
>breaking some things in order to get some other things. But you didn't 
>make that choice, you're stuck with something someone else did and then 
>sold to you.
>
>I would definitely start with putting the unit back to stock condition, 
>meaning put an EU main rom back in and remove the rex#, just as a first 
>diagnostic step just to establish a baseline even if you want to go back 
>to the hacked-up condition later.
>
>Did the seller at least supply the original rom with the unit? If not, 
>it might be taped inside.
>
>I don't know of any copies of the EU rom for download. Asking here or on 
>two facebook groups is probably your best chance to find one.
>https://www.facebook.com/groups/Model.T.Computers
>
>This one in particular has a lot fewer, but mostly European members:
>https://www.facebook.com/groups/olivettim10
>
>I think it can be dumped out the serial port with a BASIC program, so 
>anyone should be able to dump it for you without having to desolder the 
>chip or use an eprom burner. I'll try to find the basic program for 
>dumping the rom out the serial port, that way you can make it as easy as 
>possible for someone to do the favor by having some directions ready to go.
>
>If the REX# really is incompatible with the EU main rom, and Steve can't 
>produce an EU version of the REX# firmware, then you'll probably just 
>have to choose one or the other for that unit, either have the hardware 
>all work properly, or have REX# on that unit.
>
>-- 
>bkw
>
>On 2/3/22 17:40, Cedric Amand wrote:
>> Thanks, i'll try all that.
>> I must admit I don't fully understand what the REX# does, as I've only 
>> use it to make backups of the RAM, but it's features go way beyond that, 
>> so it's unclear to me if - for example - the tsdos that comes with would 
>> be "US minded".
>> 
>>  From what I understand, the original owner (which may even be in this 
>> list) had to replace the belgian/european ROM with another ROM, most 
>> likely a US one, to be able to use the REX# ( that's what I got from 
>> what he told me, don't quote me on this )
>> 
>> All these changes could, maybe, break my modem.
>> 
>> However i've been looking at the schematics of the modem part and all of 
>> this is as simple as can be, it's really purely analog in many areas, 
>> and there is no way on earth any of this is software controller. I mean 
>> : the thing doesn't care if the dial tone is 440, 600 Hz or anything (at 
>> least looking at the hardware I see no way this would be measured, even 
>> less handled by software)
>> 
>> So if I take for granted my M102 is a Belgian.european one (it' has the 
>> sticker of the telco!), I guess the electronics where adapted to our 
>> particular voltages.
>> What could be a possibility if that some of these are now out of spec
>> 
>> One final comment ; if I hit F4 (TERM) in TELCOM, the M102 starts to 
>> emit an awful noise (like if it was connected to a data line !) it does 
>> that even when the M102 is not connected to anything ( I mean, no wire 
>> connected to it at all) It is also, afaics, completely crashed (i have 
>> to reset/reboot)
>> Is that "normal" ?
>> That would point to a problem with ROM/REX...
>> 
>> 
>> thanks again for taking the time to help weirdo that wants his analog 
>> modem to work :)
>> 
>> 
>> 
>> Le jeu. 3 févr. 2022 à 23:32, Brian K. White > > a écrit :
>> 
>> I can tell you one thing for sure, the REX has no effect on the modem.
>> 
>> But you can prove that to yourself by just removing it. It doesn't hurt
>> anything and it won't even lose it's programming. Just pop it out, and
>> see that it made no difference.
>> 
>> Have you tested the line with a plain analog telephone?
>> 
>> Have you verified the modem cable doesn't have a broken wire?
>> 
>> Since you are talking about dialing vs answering, is the the ANS-ORIG
>> switch in the ORIG position? (Answer vs Originate)
>> 
>> Measure the voltage between tip & ring 

Re: [M100] Mcomm

[jonathan.y...@telia.com]

Hello,
I'm pretty sure I ran mcomm on my Nokia 7 plus which is running android 10 
right now, but I can't be 100% sure it did an update since I last connected.  
I'll try again to see
Jonathan
Ursprungligt meddelande
Från : d...@planetnz.com
Datum : 2021-10-22 - 02:49 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] Mcomm
 Yeah am pretty sure it works only on Android 8 (ish).
 
  
 
 
  It does the same thing on my Android 11 phone as you Peter.
 
 
  On Fri, Oct 22, 2021, 11:29 AM Peter Vollan <
  dprogra...@gmail.com> wrote:
  
 
 
  
   Android 11, ELITE T8 Tablet.
  
  
  
   
On Thu, 21 Oct 2021 at 15:09, Gregory McGill <
arcadeshop...@gmail.com> wrote:

   
   

 what version of android?  I had trouble earlier with a tv android box and 
one of the newer versions as well
 
  > Trying to push ts-dos from 
  mcomm android 181 on a android 9 tv box i just got. whenever i hit ok to 
send the file it just seems to crash 
  mcomm and jumps out of it.. 
 



 
  On Thu, Oct 21, 2021 at 1:04 PM Peter Vollan <
  dprogra...@gmail.com> wrote:
  
 
 
  
   Trying to run Mcomm on my Android tablet, it just keeps saying the app 
has stopped.
  
 

   
  
 

Re: [M100] Trouble with serial communication on Linux with M100

[jonathan.y...@telia.com]

Hello,

I have never had any trouble with Gentoo on two different hardware platforms, 
using minicom. Both lacked a real serial port so I used USB-serial adapter.

There could be issues if you aren't allowed to access the serial port, you need 
to belong to the group. And there is variation in the quality of serial-USB 
adapters.

Connecting to a raspberry pi didn't seem to give any headaches, either, and it 
was also running some linux distro (probably one of those ugly things with 
systemd)

Jonathan

>Ursprungligt meddelande
>Från : krose102...@gmail.com
>Datum : 2021-06-07 - 07:58 (CEST)
>Till : m100@lists.bitchin100.com
>Ämne : [M100] Trouble with serial communication on Linux with M100
>
>Hello all,
>
>Has anyone had any luck with connecting their PC to their model 100 
>through the serial port on any "modern" Linux distros? I've tried using 
>Minicom on a computer running Pop!_OS and another one running Arch and I 
>cannot seem to get the two computers to talk to each other. The screen 
>on my model 100 dims, so I know that it knows that it's connected to 
>something, but I can never get any text to transfer.
>
>I've tried to use Tback as well, but it always drops the connection 
>because it has "read 0 bytes". I've also tried to use the "Teeny-Linux" 
>program but doesn't connect to the right port. I remember trying other 
>things in the past (I can't remember what) but they didn't work because 
>certain components of Linux that the programs used were switched out for 
>more modern components.
>
>I'll probably just try to use a Windows XP virtual machine, but does 
>anyone know of any more "modern" file transfer solutions or have any 
>tips? Thanks.
>
>

Re: [M100] Good Times. Anyone have a Shilling?

[jonathan.y...@telia.com]

Hi,

I used to print things on a diablo daisy wheel terminal (it wasn't just a 
printer, but it had a keyboard as well) that was used to connect to the 
university (Cornell) via an acoustic coupler.  I had a TRS-80 model 1 at home, 
so when I wanted to print things, I would connect a microphone (I drilled a 
hole in a piece of wood that fit into my acoustic coupler) to the tape 
recorder, send the printout to the acoustic coupler (at 300 baud) and record 
what came out.  I'd take the tape to the terminal at the University, play it 
into the acoustic coupler on the diablo, and it would print out whatever.  
Mostly documents, since I was using Scriptsit on the Model 1 at the time.  
Don't remember the model of the Diablo, I know the 630 was just a printer (no 
keyboard) and I had a 620 at one time in my past.  I think I still have the 
300 baud modem I built from a 'Circuit Cellar' kit.

I remember when we got a VT-100 and 1200 baud and we thought it was SO FAST!!

Jonathan

>Ursprungligt meddelande
>Från : lloydel...@comcast.net
>Datum : 2021-05-18 - 22:58 (GMT)
>Till : m...@bitchin100.com
>Ämne : Re: [M100] Good Times. Anyone have a Shilling?
>
>Guess that makes me a little older than you.
>
>I first encountered acoustical couplers in college in the early 70s (73 74?).  
> Someone left a teletype in the dorm.  One of my friends knew the phone number 
>to a PDP-8 at the school computer center.  There were three us that stayed up 
>all night taking turns writing programs on it in BASIC.   We tied into the 
>PDP-8 at 110 baud. At the end of my turn, I would turn the paper punch on 
>and type LIST.   Not only did it print out a listing, but it punched a tape.  
>The next user typed NEW to clear my program.  He then loaded his paper tape 
>and as it read the tape it would send lines of BASIC to the PDP-8 the same as 
>if he had typed it.  A new listing was also generated.   My program was a 
>nuclear war game which was pretty primitive, but fun.
>
>Later, I worked for a company in Minneapolis that had a DEC LSI-11 with an 
>auto-answer modem connected.   They also had a Lear Siegler dumb terminal and 
>an acoustical coupler modem.  My boss would allow me to take the terminal and 
>modem home so I could tie into the DEC LSI-11.   At least now we were up to 
>300 baud.  I wrote a BASIC game on it called, Space Maze.   I documented it 
>and  published it in the 1979 issue of Creative Computing.   
>
>Now that I'm retired and have both a NEC PC-8201A (that I have had since the 
>early 80s) and a TRS-80 Model 100 (purchased this year from eBay), I'm 
>planning on rehosting this game as well as other games I had published in 
>Creative Computing to the these machines.  
>
>I'll plan on sharing the results with this group (somehow) when I'm successful.
>
>Lloyd 
>
>-Original Message-
>From: M100  On Behalf Of Brian K. White
>Sent: Tuesday, May 18, 2021 5:02 PM
>To: m...@bitchin100.com
>Subject: Re: [M100] Good Times. Anyone have a Shilling?
>
>That's what I remembered too. But acoustic couplers were just going away when 
>I was in grade school so I only ever used them a few times.
>
>Maybe it could theoretically download at 1200, at the expense of going half 
>duplex or reducing upload to just 75, and assuming the software on the 100 is 
>optimized and does not update the screen while downloading.
>
>https://upload.wikimedia.org/wikipedia/commons/f/f2/Acoustic_coupler-IMG_7282-7283.jpg
>
>That even looks very similar to the one in the video. The cable is different 
>and one of the cups looks a little different, but that does still look very 
>similar.
>
>Maybe it was a case that, just because it says 1200 on the box does not mean 
>it can ever actually do it in real life, and maybe 300 was the effective limit 
>and it could only go faster in theory.
>
>Or maybe it was just the full duplex limit, since you're not going to actually 
>do anything else but full duplex in any normal situation.
>
>You can't go over 600 in a normal situation on a 100 anyway with screen 
>updates even via direct null-modem. And I bet the 1200 over acoustic coupler 
>over a phone line requires a perfect phone line, which I doubt a moving train 
>in the 80's had.
>
>But, the 100 can do 1200, in theory, with optimized software, and the modem at 
>least claims it can do it, in theory.
>
>--
>bkw
>
>
>On 5/18/21 3:50 PM, lloydel...@comcast.net wrote:
>> If memory serves me correct, I think  the acoustical coupler modems were 
>> limited to 300 baud?
>> 
>> I also remember the old Model 33 teletypes were either 110 baud or 300 baud 
>> and sometimes only 110 baud.
>> 
>> I'm pretty sure he wasn't going for speed using an acoustical coupler modem. 
>>   Great video!   Brings back great memories.
>> 
>> Lloyd
>> 
>> -Original Message-
>> From: M100  On Behalf Of Josh Malone
>> Sent: Tuesday, May 18, 2021 2:42 PM
>> To: m...@bitchin100.com
>> Subject: Re: [M100] Good Times. Anyone have a Shilling?
>> 
>> This was a 

Re: [M100] M100 case colour...

[jonathan.y...@telia.com]

Probably one could open one up, sand the plastic (on the inside) to reveal the 
original colour, and then take it to a paint store that can read colors.  They 
need a big enough spot to measure, but then you can get an NCS code that should 
match.  We've done that with paint samples for our house, and even played 
around with some 'classic' colours done with linseed oil paint and classic 
pigments.  Once we had what we wanted with the traditional paint, we took it in 
and had modern latex-based paint mixed up to match.  So it is possible, just 
someone has to do the legwork, but I guess that is the question asked by the 
original post.
I've heard it is done with cars being painted too.
Jonathan
Ursprungligt meddelande
Från : jesslafl...@gmail.com
Datum : 2021-04-21 - 18:44 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] M100 case colour...
 I think it's still possible. 
 
  Both of my M100s are very "pale" and seem to match the photos in the 
magazines I have rather well!
 
 
  In addition, this knowledge may have been known, just like the Apple II was 
determined without resorting to colour analysis of 40 year old paint.
 
 
  Was just hoping someone here may already know, inside info or the like.
 
 
  
 
 
  Ultimately, if I don't get a satisfactory answer, I'll do an analysis myself 
and try to compensate for bromine yellowing...
 
 
  On Wed, Apr 21, 2021 at 12:01 PM Micah Cowan <
  mi...@addictivecode.org> wrote:
  
 
 
  
   Is it even possible to know that at this point?
   
The Apple II is painted metal... the M100 is an unpainted plastic whose 
shade darkens/yellows over time. Even if you were to color match the original, 
it wouldn't color match with anyone's M100 today, I'd think.
   
   

   
   
-mjc
   
  
  
  
   
On Tue, Apr 20, 2021 at 2:17 PM Jesse Lafleur <
jesslafl...@gmail.com> wrote:

   
   

 Anyone have any idea the colour of the M100?
 
  Apple II colour has been well established and figured out, but I am 
wondering if anyone has done the detective work to determine a modern match for 
the M100?
 
 
  
 
 
  
   -Jesse
  
 

   
  
 

Re: [M100] Does anyone actually use MFORTH?

[jonathan.y...@telia.com]

Hi,

That's sounds quite interesting.  I learned vi when I was jumping between 
different Unix systems, and figured they would always have vi.  Not always 
true, especially now, but my hit rate was better than with emacs.

Jonathan

>Ursprungligt meddelande
>Från : petti...@gmail.com
>Datum : 2021-03-29 - 23:08 (CEST)
>Till : m100@lists.bitchin100.com
>Ämne : Re: [M100] Does anyone actually use MFORTH?
>
>On 3/29/21 11:24 AM, Alex ... wrote:
>>
>> About the editor: I skipped over the whole chapter on the arcane line 
>> editor and page/block-based disk storage since this machine has none 
>> of that. Using TEXT with .DO files works ok, as long as whatever I'm 
>> doing doesn't trample the files in RAM.
>>
>
>Makes me wish I had time to complete VIT, the vi editor I have for the 
>Model 100 that is about 75% complete.
>
>Ken
>

Re: [M100] In over my head? Or a Challenge!!

[jonathan.y...@telia.com]

Hello,
Where I am, IPA is something I generally get at a pub...  When there were 
pubs open.
Though I suspect it is isopropyl alcohol in this post
Sorry, been isolated too long..
Jonathan
Ursprungligt meddelande
Från : b...@bradgrier.com
Datum : 2021-03-26 - 02:50 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] In over my head? Or a Challenge!!
 I've got some glycerine on my grocery list now and I've got IPA, so flux 
removal is in the near future. It's a quiet night so I think I'm going to test 
your PCR again Jeff ; maybe I missed something. 
 
  On Thu, Mar 25, 2021 at 7:39 PM Daryl Tester <
  dt-m...@handcraftedcomputers.com.au> wrote:
  
 
 
  On 24/3/21 11:49 pm, Jeffrey Birt wrote:
  
  
 > I suspect it would work by itself, but it will take a lot of it. I have used 
 > alcohol
  
 > followed by a typical flux/PCB cleaner product which works (to save on the 
 > more
  
 > expensive flux cleaner).
  
  
 A transcontinental question - what type of alcohol are y'all talking about 
here -
  
 isopropyl or something else?
  
  
 Cheers,
  
--dt
  
 
 
-- 
 
  
   

 
  
   

 -- 
 
Brad Grier


 


 

   
  
 

   
  
 

Re: [M100] M-10 for sale

[jonathan.y...@telia.com]

Hi,
People move around and take things with them.  I have a genuine US M-100 that I 
bought in Hawaii when I needed to program dataloggers in the field.  I won't 
bore you all with all the other junk I've been hauling around the world.
Jonathan
Ursprungligt meddelande
Från : jan80...@yahoo.com
Datum : 2021-03-22 - 12:13 (CEST)
Till : m...@bitchin100.com
Ämne : [M100] M-10 for sale
 
  
   Anybody is selling this ? (Santa Monica / CA)
  
  
   
https://www.ebay.com/itm/Original-1st-Laptop-Olivetti-M-10-TRS-80-Model-100-in-Japan-Microsoft-1983-M10/274721819231
   
  
  
   
  
  
   
  
  
   I wonder how a European M-10 ended up there ?
   
- It has an AZERTY-keyboard layout, only sold in France or Belgium.
  
  
   - It has the stickers of the Deutsche Bundespost 1982 on it (for all of 
Europe, afaik)
  
  
   
  
  
   
  
  
   Greetings from the TyRannoSaurus
Jan-80
  
 
 
  
 
 
  
 
 
  
On Tuesday, 16 March 2021, 21:37:43 CET, Peter Vollan 
 wrote: 
  
  
   
  
  
   
  
  
   

 Well, the program DIALER will persistently dial a number and then 
automatically call Telcom when a carrier answers. It there way to make it 
automatically turn on capture/download?
 
  
 

   
  
 

Re: [M100] printer port

[jonathan.y...@telia.com]

Hi,
I think I actually did try that once and it did work but it was ages ago when I 
had a printer with a parallel port.  Wait, the HP LJ IV still has one it still 
works(30 year-old printer.) If I can find one of those parallel 
port cables floating around I can try and confirm it.
Jonathan
Ursprungligt meddelande
Från : jho...@pobox.com
Datum : 2021-02-25 - 03:50 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] printer port
 
  
 
 
 
  
   On Wed, Feb 24, 2021 at 6:48 PM Brian K. White <
   b.kenyo...@gmail.com> wrote:
   
  
  
   On 2/24/21 9:34 PM, John R. Hogerhuis wrote:
   
 > The thickened plot: that LPT port connector wiring... is some kind of 
   
 > "standard" such that that the typical parallel port motherboard IDC 
   
 > connector to DB-25F used in building a PC works with the Model T. As in, 
   
 > you an connect that ribbon table to the Model T, and then to a printer 
   
 > cable.
   
   
 wat?  That's pretty neat.
   
   
  
  
   
  
  
   Yep. But for hearing it from others and then having tried it myself, I'd 
have figured it was pure Baloney Sandwich. 
   
   
-- John.
  
 

Re: [M100] Newbie

[jonathan.y...@telia.com]

Hello,
I power my M100 off a USB power supply, though I admit I made the cable myself. 
 Dead or no longer used phones, tablets, GPS devices, ebook readers, etc. all 
came with these things. I have more than enough of them floating around, and it 
works for the M100 even though it is only 5V out.I tried to standardize 
things so I could use the USB power supplies for electronic devices, like the 
MVT100 display adapter. That method didn't work for the Psion 5MX, though, even 
though the thing really only wants 3 V (2 AA batteries).
Jonathan
Ursprungligt meddelande
Från : cavaug...@avantguardsystems.com
Datum : 2021-02-09 - 21:26 (CEST)
Till : m100@lists.bitchin100.com
Ämne : [M100] Newbie
 
  Just joined the list as I just acquired a used TRS80 Model 100. Of course 
it's not working, so I just wanted to first ask for some advice. I have been 
reading info at Club100.
 
 
  Basically, I feel I need to buy some stuff at Club100. First and foremost a 
new battery, which is highly recommended. Also expansion RAM (since none has 
been installed), probably the power supply (although maybe premature). But 
probably better cost wise to get everything right away (shipping costs!). 
  
 
 
  Anyhow, opening it up though I see that this thing obviously had batteries 
left in it and there is dry acid (whatever that is) about that general area on 
the board. My concern is that that might be enough damage that there's no way 
to recover it. Or maybe cleaning that area up might be fine. What is 
recommended for cleaning up battery acid, btw.
 
 
  Thanks for any suggestions!
 
 
  
 
 
  
   

 
  
   
 Curtis

   
  
 

   
  
 

Re: [M100] Are You Mapped Yet?

[jonathan.y...@telia.com]

Hi,
Wasn't sure how to add my coordinates to the map.  I don't remember being asked 
when I re-registered last month.  I wanted to change my email address and it 
was easier to cancel the old one and register a new one.
Did notice another user in Sweden and I thought I was the only one!
Jonathan
Ursprungligt meddelande
Från : fezz...@yahoo.com
Datum : 2021-02-07 - 00:11 (CEST)
Till : m...@bitchin100.com
Ämne : [M100] Are You Mapped Yet?
 
  TRS-80 Model 100 Users - Google My Maps
  
 
 
  
 
 
  
   

 
  
   

 
  
   

 
  
   

 
  
  
   
 

   
 

   
 
 
  
   

 
  
  TRS-80 Model 100 Users - Google My Maps
TRS-80 Model 100 Family Users
 

   
 

   
 

   
 
 
  
 
 
  
 
 
  
 

Re: [M100] vga monitor solutions

[jonathan.y...@telia.com]

Hi,

The web site at 

https://geoffg.net/terminal.html

says 

Graphics resolution is 480x288 pixels in VGA 25 line mode, 480x432 pixels in 
VGA 36 line mode, 288x216 in PAL composite and 264x180 pixels in NTSC composite 
mode

but maybe that's not the whole story.

Using my chained adapters, I have no problem reading the screen if the 
horizontal resolution of the final device is around 1000.  My phone is 1080 x 
2160.  But I don't know which of the supported resolutions the converter is 
using.  It lists things from 800x600 up to 1920x1080.

I understand there are some standard resolutions for VGA, SVGA, and some 
'non-standard' ones.

Jonathan

>Ursprungligt meddelande
>Från : jim.ander...@kpu.ca
>Datum : 2021-01-21 - 06:51 (CEST)
>Till : m...@bitchin100.com
>Ämne : Re: [M100] vga monitor solutions
>
>> -Original Message-
>> I second that recommendation.  I've got exactly that unit and it works
>> perfectly with the M-100 running REXCPM, through an MVT100 and using VGA
>> input.
>
>I'm curious, how does the font look on that monitor?  I've tried a few 
>different LCDs and the one with the lowest resolution (1024x768) did the 
>poorest job of scaling and made the text simply awful.  Other LCDs with higher 
>resolution were not as bad, but still not great (imho) compared with a CRT.  
>I'm curious whether it was purely a problem of my LCD not having enough pixels 
>to be able to do a better job of scaling, or if it just used a really poor 
>scaling algorithm because it's old.  This LCD you're using has the same 
>horizontal resolution so I'm curious what it looks like.  If you could send a 
>photo of some text on the screen it would be great!  (If you don't want to 
>send to the list, just email me directly.)
>
>
>
>
>
>
>
>jim
>
>

Re: [M100] vga monitor solutions

[jonathan.y...@telia.com]

Hi,
Yes I realize that the stock vt100 emulation doesn't support the m100 escape 
codes.  I've only done this with rexcpm and it's a patched version of wordstar 
that intercepts the m100 cursor keys and gets the program to do what one 
expects.  I actually haven't gotten around to using the more m100-specific 
things, probably because I was so familiar with cpm .
Jonathan
Ursprungligt meddelande
Från : twospru...@gmail.com
Datum : 2021-01-20 - 15:59 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] vga monitor solutions
 Jonathan,
 
  
  
   The difference is that your use case is this:
  
  
   'M100 (CP/M) --->  RS-232--->FTDI --> USB--->PC'  
   
  
  
   
  
  
   (that is to say, I think you are running M100CP/M on REXCPM)
  
  
   
  
  
   In this case, stock VT100 works fine because there are no custom M100 ESC 
codes.
  
  
   
  
  
   Just to reiterate, 
  
  
   If the goal is to extend the native M100 OS to leverage external video, then 
you have to have an external video solution that can cope with the necessary 6 
additional ESC codes.
  
  
   
  
  
   Here is an example of why.
  
  
   In M100 BASIC, you can lock the bottom row of the screen to show the setting 
of the Function keys.   Such a function does not exist in standard VT100.
  
  
   
  
  
   
  
  
   ..Steve
  
 
 
  On Wed, Jan 20, 2021 at 9:47 AM 
  jonathan.y...@telia.com <
  jonathan.y...@telia.com> wrote:
  
 
 
  
   Hello,
  
  
   
  
  
   I think a lot of the terminal emulation programs for a PC already emulate a 
VT100.
   
  
  
   
  
  
   I did the 'M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->PC' just 
for fun, using minicom under linux.  This worked just fine, the normal 'xterm' 
under linux is vt100 compatible, so I could run wordstar or supercalc on the 
m100, and look at the output on an xterm with minicom running under xwindows.  
Not sure WHY I would do that, but I realized that it should work and it was 
just a matter of plugging in the FTDI serial device to a usb port on the  
computer. I bootstrapped the rexcpm using minicom to upload the rxcini.do file.
   
  
  
   
  
  
   A custom app for android that could interpret the vt100 codes would save a 
lot of hardware.  Would be even nicer if it could switch to the m100 codes but 
I imagine the number of people that would use that aspect is rather limited. 
   
  Since I generally use mcomm to put things in and out of the m100, a custom 
app would use the same hardware--basically just the FTDI adapter and the right 
cables.
  
  
   
  
  
   I haven't uploaded any pictures of this because it is kind of a mess with 
cables and adapters running all over the place.  I'm starting to think about 
custom-made USB power cables just to reduce the tangle.
   
  
  
   
  
  
   Jonathan
   
  
  
   Ursprungligt meddelande
   
Från : 
   twospru...@gmail.com
   
Datum : 2021-01-20 - 13:32 (CEST)
   
Till : 
   m...@bitchin100.com
   
Ämne : Re: [M100] vga monitor solutions
   
   
   

 


  Thanks Jonathan, very cool. Stitching it together like that is a nice 
combination of solutions. 


 


  So this is more representative- 
 


  M100 (with VT100 driver) --->  
RS-232--->MVT100--->VGA>converter--->HDMI >video capture --> 
USB--->tablet 


 


 
   This might be possible with a new app (like a VT100 terminal app + 6 
custom ESC codes)- 
  
 
 
   M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->tablet 
 
 
  
 
 
   This is also a possibility, with a new application (like a VT100 
terminal app + 6 custom ESC codes) - 
 
 
   M100 (with VT100 driver) --->  RS-232--->PC 
 
 
   M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->PC 
 
 
  
 
 
   This being the 'standard' MVT100 adapter approach- 
 
 
   M100 (with VT100 driver) --->  RS-232--->MVT100-->VGA--> VGA monitor 
 
 
  
 
 
  
 

   
   
  
  
  
 

Re: [M100] vga monitor solutions

[jonathan.y...@telia.com]

Hello,
I think a lot of the terminal emulation programs for a PC already emulate a 
VT100.
I did the 'M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->PC' just 
for fun, using minicom under linux.  This worked just fine, the normal 'xterm' 
under linux is vt100 compatible, so I could run wordstar or supercalc on the 
m100, and look at the output on an xterm with minicom running under xwindows.  
Not sure WHY I would do that, but I realized that it should work and it was 
just a matter of plugging in the FTDI serial device to a usb port on the  
computer. I bootstrapped the rexcpm using minicom to upload the rxcini.do file.
A custom app for android that could interpret the vt100 codes would save a lot 
of hardware.  Would be even nicer if it could switch to the m100 codes but I 
imagine the number of people that would use that aspect is rather limited. 
Since I generally use mcomm to put things in and out of the m100, a custom app 
would use the same hardware--basically just the FTDI adapter and the right 
cables.
I haven't uploaded any pictures of this because it is kind of a mess with 
cables and adapters running all over the place.  I'm starting to think about 
custom-made USB power cables just to reduce the tangle.
Jonathan
Ursprungligt meddelande
Från : twospru...@gmail.com
Datum : 2021-01-20 - 13:32 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] vga monitor solutions
 
  
 
 
  Thanks Jonathan, very cool. Stitching it together like that is a nice 
combination of solutions.
 
 
  
 
 
  So this is more representative-
  
 
 
   M100 (with VT100 driver) --->  RS-232--->MVT100--->VGA>converter--->HDMI 
>video capture --> USB--->tablet 
 
 
  
 
 
  
   This might be possible with a new app (like a VT100 terminal app + 6 custom 
ESC codes)-
   
  
  
M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->tablet 
  
  
   
  
  
   This is also a possibility, with a new application (like a VT100 terminal 
app + 6 custom ESC codes) -
  
  
M100 (with VT100 driver) --->  RS-232--->PC
  
  
M100 (with VT100 driver) --->  RS-232--->FTDI --> USB--->PC
  
  
   
  
  
   This being the 'standard' MVT100 adapter approach-
  
  
M100 (with VT100 driver) --->  RS-232--->MVT100-->VGA--> VGA monitor
  
  
   
  
  
   
  
 

Re: [M100] vga monitor solutions

[jonathan.y...@telia.com]

Hello All,
I tried this just now but I can't seem to find a 'free' android app that 
supports serial stuff (like an FTDI chip connected via usb) and is vt100 
compatible.  One can have either but not both, or one pays.  Found one that 
costs a bit but I wasn't sure how well it was supported so I passed on that.  
The FTDI converter I have plus the tablet in host mode could take the output 
from the M100 running CPM and displayed the regular characters sent.
So if you're willing to put up with just plain text (back space and even tabs 
didn't even work) a serial app on android (I used one called Serial USB 
Terminal) does work.  You could play adventure but no backspace.  Tried an FTDI 
app that was a bit old and it worked as well.  There may be something hidden 
somewhere that allows VT100 codes to be interpreted OK but I haven't found them 
yet.
There were some apps that claimed compatibility with winmodem and bluetooth 
devices together with vt100 compatibility but I don't have any of that hardware 
so I couldn't test them.
Back to the VGA-->HDMI capture --> tablet tests, I swapped the tablet for my 
Nokia 7 plus and it was also OK.  I could even read the screen of the 
phone--wordstar being displayed on my phone!!
Jonathan
Ursprungligt meddelande
Från : jho...@pobox.com
Datum : 2021-01-19 - 20:40 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] vga monitor solutions
 
  It seems like the most straightforward way to do that would be a VT100 
terminal app and a USB-serial adapter that works with the android tablet. But 
then it wouldn't use the MVT100.
  
  
Would that work? Would it lose any functionality?
  
  
   
  
  
   -- John.
  
 

Re: [M100] vga monitor solutions

[jonathan.y...@telia.com]

Hello,
Yes, the description Stephen have below basically is what I did.  I don't know 
useful it would be to describe what I bought, since (with Brexit) I try as hard 
as possible to buy things from Swedish or European sellers, but I bought a 
VGA-to hdmi adapter (this might be the one I bought but I thought I paid half)
https://www.24.se/ljud-bild-foto/kablar-kontakter/tvprojektor-kablar/videoadapter-hdmi-till-vga-ljud
The hdmi to tablet thing was fairly well documented in the article on Tom's 
hardware.
https://www.tomshardware.com/how-to/use-android-tablet-raspberry-pi-screen
I wanted to do this not only for the MVT100 solution but to use it with a pi, 
but it also worked for the hdmi output from my sony laptop (an old vaio) and 
even my Sony A7 camera.  I used an hdmi capture device that could be this one 
(once again a Swedish site but you get the general idea)
https://www.24.se/datortillbehor/datortillbehor/ovriga-datortillbehor/video-capture-usb-3-0
The tablet I used is a Samsung SM-T380, and this I bought in the US for my 
mother but she thought it was too slippery and wanted to keep her old one, so 
it ended up travelling to Sweden.  This device needs to support host mode, so 
there is a short cable from USB-C (on the tablet) to a USB-A socket (where the 
hdmi capture device gets plugged in).  An hdmi cable connects the capture 
device and the vga-to-hdmi converter, and the vga converted is plugged into the 
MVT100.  You need some app on the android tablet, and the one in the Tom's 
Hardware article worked OK.  There are others, some with a lot of ads.
As I mentioned, the 'hdmi output displayed on the tablet' was great for the 
raspberry pi, and even for my Sony A7 camera.  
As far as running a vt100 app directly in the tablet, that did cross my mind 
but I didn't think such an app existed.  I have something in my android phone 
that gives me a command line interface, and I have used it to ssh into other 
machines, but I couldn't figure out how to get it to ssh to the serial adapter. 
 After John's message, I looked, and sure enough, there is one that supposedly 
can emulate a vt100 connected to a serial adapter (and they listed all the 
usual ones).  Now I have to try this out as well.  I'll  probably get some 
strange looks again
Jonathan
Ursprungligt meddelande
Från : twospru...@gmail.com
Datum : 2021-01-20 - 04:11 (CEST)
Till : m...@bitchin100.com
Ämne : Re: [M100] vga monitor solutions
 
  sounds like Jonathan has a solution in progress.
 
 
  
 
 
  M100 (with VT100 driver) --->  RS-232--->MVT100--->VGA>converter--->HDMI 
>tablet
 
 
  
 
 
  At least I think that is what is going on.  If it works, you could use the 
video commands that worked with Disk Video Interface, running on the Tablet as 
a display.
 
 
  
 
 
  
 
 
  On Tue, Jan 19, 2021 at 9:09 PM Chris Fezzler <
  fezz...@yahoo.com> wrote:
  
 
 
  
   


 This is interesting but over my head.  I have an old Google Nexus 7 
gathering dust.  Can I use it as an monitor for a Model T?


 

   
   

 
   On Tuesday, January 19, 2021, 03:39:29 PM EST, Kenneth Pettit <
  petti...@gmail.com> wrote: 
 
 
  
 
 
  
 
 
  
   
I’ve actually stripped out the Model T logic from VirtualT and used the 
framework for other apps twice now

 


 Ken
 
 
 
  Sent from my iPhone
 
 
  
   
   
On Jan 19, 2021, at 12:10 PM, Stephen Adolph <
twospru...@gmail.com> wrote:


   
  
 
 
  
   


 WRT using Virtual T - I just meant the framework.  strip out 
Virtual T and replace with a new application that uses all the same tool kit.
 
  
 
 
  After all it is the only thing I know how to do!
 



 
  On Tue, Jan 19, 2021 at 2:58 PM John R. Hogerhuis <
  jho...@pobox.com> wrote:
  
 
 
  
   

   
   
   

 On Tue, Jan 19, 2021 at 11:44 AM Stephen Adolph <
 twospru...@gmail.com> wrote:
 


 
  I am actually thinking about exactly that, a new VT100 app 
that implements the custom M100 control codes, and takes serial data.
  
   Was thinking to use the VirtualT framework to do it also.
  
  
   
  
 


 


 VT100 is an 

[M100] vga monitor solutions

[jonathan.y...@telia.com]

Hello All,

I was looking for a smaller, perhaps battery powered vga monitor to use the my 
mvt100 that I connect to my M100.  Then I saw an article last month on Tom's 
Hardware about using an android tablet as a monitor on a raspberry pi.  That's 
nice, I thought, but I need vga.  Then I remembered seeing a vga to hdmi 
adapter, so after some internet purchases and a short hdmi cable, I can use my 
not-so-old samsung tablet as a monitor for my m100.  Rather weird watching cpm 
and wordstar start up on the tablet!  Just need to figure out a neater 
arrangement with power cables.  The hdmi capture dongle takes its power from 
the tablet but the vga to hdmi thing needs 5v, via a micro-usb connector.

Jonathan