David_P

If any of them use the default S: / E: drivers, they should be display agnostic. Maybe SmartSheet, the BASIC program from Page 6, would work? https://www.page6.org/archive/issue_22/page_31.htm

DataQue released a custom version of BCalc on a cart to support their '816 upgrade, but I think it was also compatible with a non upgraded computer. Without DOS, there would be 8K or so for data - this assumes that the program properly confirms available RAM on boot.

Looking at the source code for BCalc, it appears to use a custom DL and custom screen handling, so it will not. https://www.atarimagazines.com/analog/issue63/bcalc.php

Sidebar: Without even looking at the serial numbers, we can also tell that the 1MB model on top was an earlier serial number than the 256K one below, since it has the video port populated.

Have you tried booting while holding down OPTION to disable BASIC?

Or a fine scrolling, wrap-around board along the bottom... breaking away from the visual representation of the board, though.

Another consideration: will this program be running in RAM or ROM? Self modifying code won't work in ROM.

In BASIC, try this program: 10 PRINT PEEK(53279):GOTO 10 RUN Check that the number is changing depending on which console key (START, SELECT OPTION) is being pressed.

Uh oh... you my be about to awake another recurring Atari Age topic:

Years ago I found online (somewhere!) a STICK(1) to STICK(1) interface; as I recall, the TRIG line was used to signal data waiting.

Why wait for the future? Imagine the schisms between the Star Raiders group and the Star Raider group!

There's also the FlickerTerm option - two charsets, one in the first four bits, the second in the last four bits, and swapping charsets and screen memory every VBI. Screen flickers (hence the name) but only needs 2K screen plus 2K charsets, instead of the 9k that bitmapped requires.

MIO wins: External RAMDISK swapped to be boot drive, with homebrew battery backup in case of power failure, to run your BBS.

All we need now is an SIO card to plug the 1090 into an 800 or a 400

Mr Atari's LiteDos might be worth investigating to free up more memory.

This. Is. Awesome!

Not really a MULE player? NOTE REALLY A MULE PLAYER?????? Ahem.

So a system with 48K RAM. For DOS 2.0S, are you using the default configuration, or are you adding additional drives and additional files (which affects the low memory)? If your system only operates on XL/SE series computers, that suggests that it's actually using the 16K (well, 14K) RAM under the OS, meaning that the 400 and 800 will not work. Does your compiler use RAM under ROM? If you want additional RAM free, look for Mr Atari's LiteDOS, a DOS 2.0 / MyDOS compatible DOS that will free up an additional 4K of RAM.

What is your target system and operating system?

Are you also checking for ANTIC banking? An expanded 800xl may or may not have that ability.

More info on Telelink II: https://atariwiki.org/wiki/Wiki.jsp?page=ATARI TELELINK II User manual: https://atariwiki.org/wiki/attach/ATARI TELELINK II/Telelink_II_Owners_Guide-screen.pdf The cart can store two different phone numbers.

TeleLink II was the original flash memory cart, from 1982. http://www.atarimania.com/utility-atari-400-800-xl-xe-telelink-ii_16405.html

There is a Hyper E: patch, that came in both a RAM resident and a "Copy into your own OS ROM" version; believe it was in ANTIC, but may have been ANALOG. EDIT: No, it's John Harris, who included it with MAE. https://www.mixinc.net/atari/mae.htm https://atariwiki.org/wiki/Wiki.jsp?page=MAE Assembler

It's the Most Important Game

Who's taking the Pico W to make a PBI Fujinet ?