Finally got calculator to work in .NET.
Two key steps:
1. Remove <precompile name="precompile" location="$ISE_PRECOMP\base-safe.ecf"/> from calculator.ecf
2. Environment Variables. Add to Path:
C:\Program Files\Eiffel Software\EiffelStudio 24.05 Standard\studio\spec\win64\bin\netcore
Then launch Visual Studio opening project:
C:\path\to\calculator\EIFGENs\dotnet\W_code\wrap_calculator.csproj
But don't see a way to view values in Visual Studio, such as register.
Is there a way to view these values, other than print instructions.
If not, is this a future enhancement of Eiffel for .NET.