说明：  全面介绍了UCOS-II在S3C44B0上的移植，移植代码已通过验证，特别是对OSIntCtxSw()和OSTickISR()的移植纠正了以往的错误
(A comprehensive introduction UCOS-II in S3C44B0 the transplant, transplant the code has been validated, especially for OSIntCtxSw () and OSTickISR () transplant to correct the past mistakes)