On 04/02/16 11:19, Andreas Schwab wrote: > Alan Hourihane <alanh@fairlite.co.uk> writes: > >> That 'case -1' doesn't look right. Shouldn't it be 'case 0xFFFF' ? > 0xFFFF wouldn't match since hi is sign-extended. > I'd agree if there wasn't the & operation going on, but there is. Alan.