
Gamma EmulaTion - The Bull Gamma Tambour emulator
(C) 1999, 2000, 2018 Vincent Joguin
Parts (C) 1995-1999, 2001 Vincent Joguin

Version 0.81


  1. Disclaimer
  2. Known Problems
  3. System Requirements
  4. Getting Started
  5. Instructions
  6. What Is Emulated
  7. Acknowlegments
  8. Contact


  1. Disclaimer

This product is freeware but NOT public domain. You can copy this program
as long as all the files from the original archive are distributed together.
You have the right to modify only the TAMBOUR.IMG and TABLEAU.IMG files.

The programs contained inside the TAMBOUR.IMG file are
(C) 1957-1960 IMAG - Institut de Mathmatiques Appliques de Grenoble

Use this product at your own risks! I can't be liable for any damage it could
do to your software and/or hardware.


  2. Known Problems

Input and output instructions and mechanisms aren't emulated. You can't use
programs that make use of inputs or outputs.


  3. System Requirements

Minimum (and best) requirements
- Intel 386 processor or equal.
- 2 MB of internal memory.
- Color text card.
- DOS 2.0 to DOS 7.x.

Note that in 2018, there is as much an age difference between a current
computer and this configuration as there is between the latter and a Gamma
Tambour! It is therefore recommended to use an emulator of older PCs such as
DOSBox, available from this address: www.dosbox.com


  4. Getting Started

This program is Himem unfriendly: you must run it in real DOS (not Windows)
without ANY memory manager installed (Himem, Emm386, Qemm, ...), but you
can still load your mouse, sound card, video card, ... drivers as it requires
less than 100 KB base memory.
Shift-F5 at startup should do it with Win 95. Win 98 users should press F8 at
startup, then Shift-F5 when the menu appears.

You can now run Gamma EmulaTion by typing GE.
You should now see a Gamma Tambour debugger screen.


  5. Instructions

Here are the keys to use the debugger:
[Tab]          > Switch to another debug window
[ESC]          > Quit the emulator

Other keys are defined for easy use of the debugger. Read the small help line
at the bottom of the screen for further help.


  6. What Is Emulated

- 99.9% Gamma 3 Tambour calculator, cycle exact
- Fast and Tambour memories


  7. Acknowlegments

Thanks to Louis Bolliet, to Maurice Geynet, and to ACONIT (Association pour un
Conservatoire de l'Informatique et de la Tlmatique: www.aconit.org) who
supplied me with all the necessary information to develop this emulator.

Thanks also to Jos Maillard of the ENSIMAG engineers school for having
identified on January 26, 2018 a bug in the execution of the multiply and
divide instructions in binary mode, while working on a compiler project
targeting the Gamma Tambour in partnership with ACONIT!


  8. Contact

If you have any question or remark, feel free to mail me at aph@joguin.com
For my other emulators, please visit vincent.joguin.com


                                                   Vincent "ApH" Joguin 
