Lazarus 4.6 (rev lazarus_4_6) FPC 3.2.2 x86_64-win64-win32/win64 https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-switchtothread https://learn.microsoft.com/en-us/windows/win32/api/winnt/nf-winnt-yieldprocessor