Gear: Parallax Inc. Propeller P1 Emulator

What is GEAR? Is a C# program that simulates the inner workings of the Propeller P1 chip.

It is NOT intended to be a replacement for the board, as it is considerably slower (for the sake of accuracy).

Currently it has:

Propeller Emulation

• Full support for the current parallax native instruction set, with accurate timing, and HUB 'ring' emulation.
• Stepping per cycle.
• Runtime disassembler for both interpreted code and assembly code.
• Loads the spin IDE's native output (.eeprom and .binary both supported).
• Main memory viewer.
• Interpreted emulation - Emulates all known instructions (see SpinBytecode document ).
• Emulated Frequency generators.
• An internal editor for the plugins, with some support of syntax highlighting.
• Full PLL emulation.
• Video Generator Output, more accurate according Verilog code.

User Interface

• A tabbed, visual studio like with multiple emulation instances are allowable in one application.
• The tabbed window support splitting the view, stacking two windows on top of each other, or 'floating' a new window so you can put it where ever you like.
• Support for loading plugins (editable C# scripts) to extend the system, and wire up additional emulated components like television, VGA, serial terminal (see Plugins notes.md for the complete list).
• Plugin Editor to personalize or create your own, based on a template.

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Last Changes:

See changelog.md for list of changes.

Plugins notes

See Plugins notes for brief explanation of each one.

Related Parallax forum threads:

• Improved GEAR Emulator [2014-07-03 ]
  • Gear plugin confusion - plugin scripts and Gear are both C# ! [2015-04-26]
  • Building a plugin to emulate audio in GEAR [2015-04-26]
• More GEAR - Improved Emulation of the Propeller [2008-01-13]
  • GEAR does not seem to emulate SUBS correctly. (Now resolved/fixed)
  • VT100 terminal plugin for the GEAR emulator [2008-09-17]
• GEAR: Propeller Debugging Environment [2007-01-10]

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Copyright 2007-2022 - Gear Developers

Released under the Lesser GNU Public Licence (LGPL).

See Licence for details.

Current Developers:

• @github/gatuno1 - Antonio Sanhueza

Past Developers:

• @github/davispuh
• mirror (parallax forums)
• benjie (parallax forums) - Ben Levitt
• Robert Vandiver (parallax forums)

Contributors:

• @github/Sh1nyAnd3o3
• @github/mbaeten
• @github/Memotech-Bill
• @github/jlunder
• Bob Anderson (parallax forums)
• Marc Gebauer (parallax forums)

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Third Party Components:

• Windows Forms Collapsible Splitter Control for .Net
  (c)Copyright 2003 NJF ([email protected]).
  Licensed under The Microsoft Public License (Ms-PL)

• Icons from and derived of Visual Studio 2019 Image Library.
  (c)Copyright 2019 Microsoft Corporation. All rights reserved.
  See Visual Studio 2019 Image Library EULA.rtf for licence details.