fixed compilation err in cpu-level=3 config

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11855 6c8e4198-a580-4521-a02f-c9ae86df1db9
disasm: Id form in 32-bit should be sign-extended to 64-bit

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11856 6c8e4198-a580-4521-a02f-c9ae86df1db9
disasm bug fixes

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@11857 6c8e4198-a580-4521-a02f-c9ae86df1db9