Mia - Sony Ericsson T68i emulator written in C# with Avalonia and .NET.

Mia emulates the Sony Ericsson T68i handset in C# with Avalonia and .NET. It runs the original AVR handset firmware and its ARM modem firmware. The project includes desktop, browser, and command-line front ends.

This repository does not include handset firmware, modem firmware, a GDFS image, or service documentation. You must supply those files from hardware or media that you can lawfully use.

Required inputs

The front ends use these default paths:

• flat.bin for the AVR handset firmware
• images/T68i_Default_GDFS.raw for the GDFS image
• images/t68i_R8A015_125326_Modem.bih for the R8A015 ARM modem firmware

The desktop head also accepts images/T68i_Full_GDFS.raw and images/T68i_Full_GDFS.compact.raw. You can use command-line options to select files at other locations.

Build

Install the .NET SDK version in global.json. Then build the emulation core:

dotnet build src/Mia.Emulator/Mia.Emulator.csproj -c Release

The desktop and browser projects use Avalonia 12.1.1 packages from NuGet.org. Install the wasm-tools workload to build the browser project.

Build the complete solution:

dotnet build Mia.slnx -c Release

Run

Run the desktop head from the repository root:

dotnet run -c Release --project src/Mia.Desktop -- \
  --firmware-file path/to/flat.bin \
  --gdfs-file path/to/T68i_Full_GDFS.raw \
  --modem-file path/to/t68i_R8A015_125326_Modem.bih

The desktop head starts the handset and provides a keypad, a live LCD, and a loopback automation interface.

The command-line emulator exposes trace and capture options:

dotnet run -c Release --project src/Mia.Emulator.Cli -- \
  path/to/flat.bin \
  --gdfs-file path/to/T68i_Full_GDFS.raw \
  --modem-file path/to/t68i_R8A015_125326_Modem.bih \
  --virtual-sim

Run the command with --help to see all options.

Test

The ARM and AVR core tests do not need the proprietary firmware files:

dotnet test tests/Arm7Core.Tests/Arm7Core.Tests.csproj -c Release
dotnet test tests/AvrCore.Tests/AvrCore.Tests.csproj -c Release

The application tests use the same public Avalonia packages as the shared UI.

Layout

• src/Arm7Core contains the ARM7TDMI interpreter.
• src/AvrCore contains the AVR interpreter and assembler.
• src/Mia.Emulator contains the handset, modem, ASIC, SIM, and GSM models.
• src/Mia.App contains the shared cross-platform Avalonia UI.
• src/Mia.Desktop contains the thin desktop head and its platform services.
• src/Mia.Browser contains the thin WebAssembly head and its browser services.
• src/Mia.Emulator.Cli contains the command-line head.
• src/Mia.Android and src/Mia.iOS are stubs. They do not launch applications.
• tests contains the automated tests.
• tools contains analysis, conversion, probe, and build utilities.

License

The project code uses the MIT License. See LICENSE. Ported and third-party code has separate terms in THIRD-PARTY-NOTICES.md. The license does not cover proprietary handset files or marks. See TRADEMARKS.md.