PG Designs M100 RAM Expansion: Difference between revisions

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==Intro==
==Intro==
PG Designs made several ram expansion boards for Model 100 that ranged from 32K to 224K.<br>
PG Designs made several ram expansion boards for Model 100 that ranged from 32K to 224K.<br>
These devices added extra ram to a Model 100 in the form of 32K "banks", where each bank was essentially a whole separate computer. You use the extra ram by switching from one bank to another, and while in one bank you generally only have access to the files in that bank. It's almost as if you put one Model 100 away and pulled out a different one. The PG Designs ram adds to the original ram inside the Model 100, so if you have 32K installed in the Model 100, and add the the 224K PG Designs, you have a total of 256K available, in the form of 8 banks, where bank 1 is your original normal built-in ram.
These devices added extra ram to a Model 100 in the form of 32K "banks", where each bank was essentially a whole separate computer. You use the extra ram by switching from one bank to another, and while in one bank you generally only have access to the files in that bank. It's almost as if you put one Model 100 away and pulled out a different one. The PG Designs ram adds to the original ram inside the Model 100, so if you have 32K installed in the Model 100, and add the the 224K PG Designs, you have a total of 256K available, in the form of 8 banks, where bank 1 is the original internal ram, and banks 2-8 are provided by the expansion.


[[File:pgdesigns1.jpg|200px]]
<gallery>
[[File:pgdesigns2.jpg|200px]]
pgdesigns1.jpg
[[File:pgdesigns3.jpg|200px]]
pgdesigns2.jpg
[[File:pgdesigns4.jpg|200px]]
pgdesigns3.jpg
pgdesigns4.jpg
</gallery>


==Files==
==Files==
https://drive.google.com/open?id=0Bys6eLbSbYyhTTdmeGc0b2trODg
:[[File:PG_Design_Expansion_RAM_for_TRS-80_Model_100_-_1984_32k.pdf]]
:[[File:PG_Design_Expansion_RAM_for_TRS-80_Model_100_-_1985_64k.pdf]]
:[[File:PG_Design_0MENU_2.01.zip]]
 
<!-- https://drive.google.com/drive/folders/0Bys6eLbSbYyhTTdmeGc0b2trODg?resourcekey=0-9-wNXOCjdPrOuKe-sszh0Q&usp=sharing -->


==Installing the bank-switch utility==
==Installing the bank-switch utility==


#Back up any files you care about currently on the M100.
Back up any files you care about currently on the M100.
#Hard reset the M100 (wipe the ram): Hold down all 3 keys SHIFT+CTRL+BREAK and press RESET next to the serial port.
#Use [[tpdd_Teeny|Teeny]] (or any [[TPDD client]]) and [[dlplus]] (or any [[TPDD server]]) to copy "menu.ba" to the M100.
#:You could alternatively use:
#::hexfer & telcom (several steps, hxfer encode the file to a .DO, telcom and some pc comm prog to copy a hexfer.do and the menu.do, load the hexfer.do in basic and run it to convert menu.do back to menu.ba)
#::or xmodem (which would require hxfer & telcom first anyway just to get an xmodem program installed. pointless unless you happened to already have an xmodem util installed previously)
#::or CLOAD from cassette (except no cassette file of menu.ba exists)
#::or you could build a [[Teeprom]] and program it with the TS-DOS option rom image (sweet end result, but non-trivial)
#::or you could build or buy a [[REX]], which has TS-DOS option rom built in (even sweeter end result, but even more non-trivial to build, or expensive to buy)
#::or you could CLOAD the ram version of TS-DOS from an mp3 file (that does exist and is pretty easy if you have the cassette cable and a phone that still has a headphone jack)
#:...
#:You just can't transfer this file directly with TELCOM or even with LOAD "COM:..." in BASIC. You have to use xmodem or better, and the simplest of those if starting from scratch and without any fancy option roms etc, is generally tpdd, since it is fairly convenient to bootstrap teeny.
#Run menu.ba
#:You will answer some questions.
#:You will see "saving and moving program".
#:Ignore the “FC error in 4” error.
#:It will then delete the first 5 lines of itself and rerun itself.
#:The program is now in lowmem.
#:It will also remove the next 5 lines of itself.


At this point the program IS installed, though you can't see it.<br>
Hard reset the M100 (wipe the ram): CTRL+BREAK+RESET
 
Use a [[TPDD client]] (like TS-DOS) and a [[TPDD server]] (like dl2 or laddie) to copy <code>MENU.BA</code> to the Model 100.
:(You can't convert this to ascii basic and transfer it via TELCOM like you could any other BASIC program. It must be treated like a binary and copied only via some binary-safe method. This could be cassette or xmodem etc, but TPDD is the most convenient.)
:example using [https://github.com/bkw777/dl2 dl2]: <code>$ dl -v -b TEENY.100 && dl -v -u</code>
:Then on the 100 use TEENY to copy MENU.BA
::The command in TEENY would be <code>L MENU  .BA</code>
 
Run MENU.BA
:Answer the prompts about which bank you are currently in and how many banks your unit has.
::After the power-cycle, you are in bank 1.
::If your unit has 7 ram chips (3 are hidden in between the two pcbs), that is 8 banks, the Model 100's original 32k plus 7 more banks of 32k.
:Ignore the “FC error in 4” error that flashes by. It's not really an error in this case.
 
At this point the program is installed, though you can't see it.<br>
It is an invisible program called <code>0MENU</code>. (number zero, not letter oh)
It is an invisible program called <code>0MENU</code>. (number zero, not letter oh)


Type <code>0MENU</code> at the main menu and hit enter.
To run it, type <code>0MENU</code> at the main menu and press Enter.


You should now see a new menu, and you can switch to another bank.
You should now see a new modified main menu, and you can switch to another bank.


0MENU is only installed in bank 1 at this point.
Once you switch to some other bank, it will be a new empty bank that doesn't have <code>0MENU</code> or anything else in it.


When you switch to another bank, 0MENU won’t exist there, and so you can't use it to switch back.
To get back to bank 1 or any other bank, you can repeat the 0MENU install in the new bank, and all other banks.<br>
With 0MENU installed in all banks, then you can switch directly from any bank to any other.


To get back to bank 1, or get to any other bank, you can:
You can also just power-cycle the machine and that will always put you back to bank 1.<br>
* Power off and back on, which puts you back in bank 1. And since bank 1 has 0menu, you can go from there to any other.
Since bank 1 has 0MENU installed, and you can always get to bank 1 by power-cycle, you could get by with only the bank 1 install.
Or
* Repeat the install procedure in every bank, so you have 0MENU in every bank.


==Usage==
==Usage==
Line 55: Line 56:


==TODO==
==TODO==
Find or create an mp3 cassette version of 0menu.
Create an mp3 cassette version of MENU.BA.


Create a 0menu injector similar to the teeny or floppy installers?
Create a 0MENU loader that can be bootstrapped directly like teeny/ts-dos/etc?


==Credits / References==
==Credits / References==
Thanks to Stephen Adolph for documenting the install and usage procedures and providing a pdf scan of the manual to an early 32k (single bank) model.
Pictures: https://photos.app.goo.gl/HgBp1QsyNhM4JUg78
Pictures: https://photos.app.goo.gl/HgBp1QsyNhM4JUg78


M100SIG.ZIP: https://drive.google.com/open?id=0Bys6eLbSbYyhNE05SjNYUTIzeVU
:There are several bits of info about the PG Designs ram expansion in the [https://github.com/LivingM100SIG/Living_M100SIG M100SIG] archive.
:Lib-09-Periferals/BANKSW.100
:Here are some examples, there may be even more.
:Lib-13-Reviews/BIGRAM.REV
<!--
M100SIG.ZIP: https://archive.org/details/M100SIG
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FBANKSW.100 Lib-09-PERIFERALS/BANKSW.100]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPG-TIP.000 Lib-09-PERIFERALS/PG-TIP.000]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPG-TIP.001 Lib-09-PERIFERALS/PG-TIP.001]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPG-TIP.002 Lib-09-PERIFERALS/PG-TIP.002]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPG64K.DVI Lib-09-PERIFERALS/PG64K.DVI]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPGMENU.100 Lib-09-PERIFERALS/PGMENU.100]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FPGMUNK.TIP Lib-09-PERIFERALS/PGMUNK.TIP]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FRAMEXP.THD Lib-09-PERIFERALS/RAMEXP.THD]
:[https://archive.org/download/M100SIG/M100SIG.zip/Lib-09-PERIFERALS%2FDSKMGR.PGD Lib-09-PERIFERALS/DSKMGR.PGD]
:[https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FBIGRAM.THD LIB-13-REVIEWS/BIGRAM.THD]
:[https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FBIGRAM.REV LIB-13-REVIEWS/BIGRAM.REV]
:[https://archive.org/download/M100SIG/M100SIG.zip/LIB-13-REVIEWS%2FPGD64K.REV LIB-13-REVIEWS/PGD64K.REV]
-->
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/BANKSW.100 Lib-09-PERIFERALS/BANKSW.100]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.000 Lib-09-PERIFERALS/PG-TIP.000]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.001 Lib-09-PERIFERALS/PG-TIP.001]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.002 Lib-09-PERIFERALS/PG-TIP.002]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG64K.DVI Lib-09-PERIFERALS/PG64K.DVI]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PGMENU.100 Lib-09-PERIFERALS/PGMENU.100]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PGMUNK.TIP Lib-09-PERIFERALS/PGMUNK.TIP]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/RAMEXP.THD Lib-09-PERIFERALS/RAMEXP.THD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/DSKMGR.PGD Lib-09-PERIFERALS/DSKMGR.PGD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/BIGRAM.THD LIB-13-REVIEWS/BIGRAM.THD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/BIGRAM.REV LIB-13-REVIEWS/BIGRAM.REV]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/PGD64K.REV LIB-13-REVIEWS/PGD64K.REV]
   
   
http://www.tmne.com/downloads.html (see floppyco.txt from the menu_ba.zip here)
http://www.tmne.com/downloads.html (see floppyco.txt from the menu_ba.zip here)
Line 72: Line 97:
http://www.club100.org/memfiles/index.php?direction=0&order=&directory=Steve%20Adolph/MENU%20add%20on%20for%20M100%20and%20T102& 0menu v1.3
http://www.club100.org/memfiles/index.php?direction=0&order=&directory=Steve%20Adolph/MENU%20add%20on%20for%20M100%20and%20T102& 0menu v1.3


https://drive.google.com/open?id=0Bys6eLbSbYyhZTY1a3VXVFRUQmM 0menu v2.01 (from Richard Hanson below)
https://drive.google.com/drive/folders/0Bys6eLbSbYyhZTY1a3VXVFRUQmM?resourcekey=0-DIPxlRnOkDgk9HVRscvFEw 0menu v2.01 (from Richard Hanson below)


http://www.club100.org/library/libups.html See the RICHARD HANSON section
http://www.club100.org/library/libups.html See the RICHARD HANSON section
:PG Design Data Transfer Utility v2.01 for 32K - 224K RAM Expansion units.
:PG Design Data Transfer Utility v2.01 for 32K - 224K RAM Expansion units.
:Please note: The MENU.BA file is not in ASCII due to embeded machine language code. You must download with xmodem or greater. The INVISO.BA file in ASCII.
:Please note: The MENU.BA file is not in ASCII due to embeded machine language code. You must download with xmodem or greater. The INVISO.BA file is ASCII.
:[http://www.club100.org/library/ups/menu.ba MENU.BA]
:[http://www.club100.org/library/ups/menu.ba MENU.BA]
:[http://www.club100.org/library/ups/inviso.ba INVISO.BA]
:[http://www.club100.org/library/ups/inviso.ba INVISO.BA]


Apparently these were also sold under the name Enterprise Systems. https://drive.google.com/open?id=1pJcSvFAw4smcPIzbVWhnBLERoaKb3xqX
Apparently these were also sold under the name Enterprise Systems? Maybe re-seller? https://drive.google.com/file/d/1pJcSvFAw4smcPIzbVWhnBLERoaKb3xqX/view


Compatibility issue, and work-around, with the stock Tandy dos for TPDD and TPDD-2: http://www.ordersomewherechaos.com/rosso/fetish/m102/web100/docs/pdd2-dos-patch.html
Compatibility issue, and work-around, with the stock Tandy dos for TPDD and TPDD-2: http://www.ordersomewherechaos.com/rosso/fetish/m102/web100/docs/pdd2-dos-patch.html

Latest revision as of 17:35, 28 January 2024

Intro

PG Designs made several ram expansion boards for Model 100 that ranged from 32K to 224K.
These devices added extra ram to a Model 100 in the form of 32K "banks", where each bank was essentially a whole separate computer. You use the extra ram by switching from one bank to another, and while in one bank you generally only have access to the files in that bank. It's almost as if you put one Model 100 away and pulled out a different one. The PG Designs ram adds to the original ram inside the Model 100, so if you have 32K installed in the Model 100, and add the the 224K PG Designs, you have a total of 256K available, in the form of 8 banks, where bank 1 is the original internal ram, and banks 2-8 are provided by the expansion.

Files

File:PG Design Expansion RAM for TRS-80 Model 100 - 1984 32k.pdf
File:PG Design Expansion RAM for TRS-80 Model 100 - 1985 64k.pdf
File:PG Design 0MENU 2.01.zip


Installing the bank-switch utility

Back up any files you care about currently on the M100.

Hard reset the M100 (wipe the ram): CTRL+BREAK+RESET

Use a TPDD client (like TS-DOS) and a TPDD server (like dl2 or laddie) to copy MENU.BA to the Model 100.

(You can't convert this to ascii basic and transfer it via TELCOM like you could any other BASIC program. It must be treated like a binary and copied only via some binary-safe method. This could be cassette or xmodem etc, but TPDD is the most convenient.)
example using dl2: $ dl -v -b TEENY.100 && dl -v -u
Then on the 100 use TEENY to copy MENU.BA
The command in TEENY would be L MENU .BA

Run MENU.BA

Answer the prompts about which bank you are currently in and how many banks your unit has.
After the power-cycle, you are in bank 1.
If your unit has 7 ram chips (3 are hidden in between the two pcbs), that is 8 banks, the Model 100's original 32k plus 7 more banks of 32k.
Ignore the “FC error in 4” error that flashes by. It's not really an error in this case.

At this point the program is installed, though you can't see it.
It is an invisible program called 0MENU. (number zero, not letter oh)

To run it, type 0MENU at the main menu and press Enter.

You should now see a new modified main menu, and you can switch to another bank.

Once you switch to some other bank, it will be a new empty bank that doesn't have 0MENU or anything else in it.

To get back to bank 1 or any other bank, you can repeat the 0MENU install in the new bank, and all other banks.
With 0MENU installed in all banks, then you can switch directly from any bank to any other.

You can also just power-cycle the machine and that will always put you back to bank 1.
Since bank 1 has 0MENU installed, and you can always get to bank 1 by power-cycle, you could get by with only the bank 1 install.

Usage

0MENU also allows you to copy files from any bank that has 0MENU to any other bank that has 0MENU.

You can use INVISO.BA to make the program visible (MENU.BA), or invisible again (0MENU).

TODO

Create an mp3 cassette version of MENU.BA.

Create a 0MENU loader that can be bootstrapped directly like teeny/ts-dos/etc?

Credits / References

Pictures: https://photos.app.goo.gl/HgBp1QsyNhM4JUg78

There are several bits of info about the PG Designs ram expansion in the M100SIG archive.
Here are some examples, there may be even more.
Lib-09-PERIFERALS/BANKSW.100
Lib-09-PERIFERALS/PG-TIP.000
Lib-09-PERIFERALS/PG-TIP.001
Lib-09-PERIFERALS/PG-TIP.002
Lib-09-PERIFERALS/PG64K.DVI
Lib-09-PERIFERALS/PGMENU.100
Lib-09-PERIFERALS/PGMUNK.TIP
Lib-09-PERIFERALS/RAMEXP.THD
Lib-09-PERIFERALS/DSKMGR.PGD
LIB-13-REVIEWS/BIGRAM.THD
LIB-13-REVIEWS/BIGRAM.REV
LIB-13-REVIEWS/PGD64K.REV

http://www.tmne.com/downloads.html (see floppyco.txt from the menu_ba.zip here)

http://www.club100.org/memfiles/index.php?direction=0&order=&directory=Steve%20Adolph/MENU%20add%20on%20for%20M100%20and%20T102& 0menu v1.3

https://drive.google.com/drive/folders/0Bys6eLbSbYyhZTY1a3VXVFRUQmM?resourcekey=0-DIPxlRnOkDgk9HVRscvFEw 0menu v2.01 (from Richard Hanson below)

http://www.club100.org/library/libups.html See the RICHARD HANSON section

PG Design Data Transfer Utility v2.01 for 32K - 224K RAM Expansion units.
Please note: The MENU.BA file is not in ASCII due to embeded machine language code. You must download with xmodem or greater. The INVISO.BA file is ASCII.
MENU.BA
INVISO.BA

Apparently these were also sold under the name Enterprise Systems? Maybe re-seller? https://drive.google.com/file/d/1pJcSvFAw4smcPIzbVWhnBLERoaKb3xqX/view

Compatibility issue, and work-around, with the stock Tandy dos for TPDD and TPDD-2: http://www.ordersomewherechaos.com/rosso/fetish/m102/web100/docs/pdd2-dos-patch.html

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