From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Larmour To: windy Cc: ecos-discuss@sources.redhat.com Subject: Re: [ECOS] Help! Date: Tue, 10 Apr 2001 13:19:00 -0000 Message-id: <3AD36AE4.91C74281@redhat.com> References: <200104060641.XAA13189@cygnus.com> <3ACDDD24.AEC8EB55@redhat.com> <006a01c0bf58$63d90c50$cd4e66ca@wdy> X-SW-Source: 2001-04/msg00088.html windy wrote: > > > > We have ported ecos to our arm7 system.It seems work well,But division fail always confuses us. > > > [snip] > Today I have traced into __divsf3 . The bus error is reported when executing the instruction like "LDR R2, [R1,#2]". > When 'LDR' is used to load data which is not word align ,it will always cause bus error. > It seems arm7 on Samsung S3C44 box couldn't execute this type instruction correctly, although the manual book says > support. So strange! See the thread "Access unaligned address" which I just replied to. This looks like the same issue. Jifl -- Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062 Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine