Define incoming parameters in a PARAMS instruction. This simplifies register allocation because the initial register state does not have to be inferred from the calling convention.

set HotSpotMksHome=C:\cygwin\bin& set JAVA_HOME=%cd%\jdk1.7.0& set path=%JAVA_HOME%\bin;%path%;%HotSpotMksHome%& cd make\windows& call create.bat %cd%