readded stack checker!

readded stack checker!
	modified:   16.exe
	modified:   16.map
	modified:   bakapi.exe
	modified:   bakapi.map
	modified:   exmmtest.exe
	modified:   exmmtest.map
	modified:   fmemtest.exe
	modified:   fmemtest.map
	modified:   fontgfx.exe
	modified:   fontgfx.map
	modified:   fonttest.exe
	modified:   inputest.exe
	modified:   inputest.map
	modified:   makefile
	modified:   maptest.exe
	modified:   maptest.map
	modified:   palettec.exe
	modified:   palettec.map
	modified:   pcxtest.exe
	modified:   pcxtest.map
	modified:   pcxtest2.exe
	modified:   pcxtest2.map
	modified:   scroll.exe
	modified:   scroll.map
	modified:   test.exe
	modified:   test.map
	modified:   test2.exe
	modified:   test2.map
	modified:   vgmtest.exe
	modified:   vgmtest.map