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This is documentation for the Viper RAM Expansion by Alternative Engineering Corporation.
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Loading and Saving in Vipersoft BASIC
Lance Squire explains how to load and save at both 300-baud and
2000-baud... something that was completely left out of the Viper 1 and Extended BASIC Manual!
(One Page, 2K) |
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Using the AstroBASIC 2000-BAUD Interface with Vipersoft BASIC
This documentation discusses swapping AstroBASIC with Vipersoft BASIC
loaded into RAM, either from a multicart, a cartridge created from an EPROM or
from (probably the most common method) loading Vipersoft BASIC from a tape.
This cartridge swap is done so that the AstroBASIC tape interface can be used
to save or load to tape at the faster 2000-BAUD instead of requiring the much
slower (and rarer!) 300-BAUD external interface.
- (1 Page, 1KB) |
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Viper 1 and Extended BASIC Manual
Manual with explanations of such features as the Auto Write Switch, Checksum Program
Copy Cartridge Program, Copy Extended BASIC from Memory to Tape, Glossary of Computer Terms,
Internal Dual Switchpaks for Memory Addressing and Bus Controls, Keyboard Interface, Loading
Extended BASIC from Tape, Programmable Write Protect/Write Enable Circuit, Switched AC outlet,
Troubleshooting, Installation, and Viper to Bally Interface Card. - (15 Pages, 20K)
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Viper Boards (Schematics)
Schematics created by Lance F. Squire's father. Lance, an owner of the Viper 1,
uploaded these to the Bally Alley Discussion group on January 28, 2007. - (Five JPG images, 1.4MB) |
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Viper RAM (Loading and Saving Tips)
A letter that George Moses wrote to Dick Houser on October 28, 1982 that gives brief directions on
loading and saving with the Viper RAM expansion using AstroBASIC. - (1 page, 42K) |
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Vipersoft BASIC Instructions Transcribed (Part 1)
Lance Squire transcribed Part 1 of the ViperBASIC new system level
commands. He does not have part 2... do you?
(Four Page, 2K) |
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