I fixed the keyboard bug~ ^^

	new file:   16/DOS_KB.EXE
	modified:   16/Project 16.bfproject
	modified:   16/dos_kb.c
	modified:   16/modex16/dos_kb.c
	modified:   16/modex16/pcxtest.exe
	modified:   16/modex16/scroll.c
	modified:   16/modex16/scroll.exe
	modified:   16/modex16/test.exe
	modified:   16/modex16/test2.exe