Support M64 extended format version 4 (Mupen 1.5.0-3) - #76

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v3, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The variable 'numBytes' is assigned but its value is never used

The variable 'e' is declared but never used

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

'HandleProcessCorruptedStateExceptionsAttribute' is obsolete: 'Recovery from corrupted process state exceptions is not supported; HandleProcessCorruptedStateExceptionsAttribute is ignored.' (https://aka.ms/dotnet-warnings/SYSLIB0032)

This call site is reachable on all platforms. 'PInvoke.ReadProcessMemory(HANDLE, void*, void*, nuint, nuint*)' is only supported on: 'windows' 5.1.2600 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)

This call site is reachable on all platforms. 'PInvoke.WriteProcessMemory(HANDLE, void*, void*, nuint, nuint*)' is only supported on: 'windows' 5.1.2600 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)

This call site is reachable on all platforms. 'PInvoke.QueryWorkingSetEx(HANDLE, void*, uint)' is only supported on: 'windows' 6.0.6000 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)

This API is only available when targeting a specific CPU architecture. AnyCPU cannot generate this API.