On Sun, 15 Jul 2001 11:27:24 +0900 "Tony Ko" <nhko@gctsemi.com> wrote: > hi. > when is interrupt_end( ) called? > who is caller? Somewhere at the end of an ISR > who is caller? For x86 the caller was some assembly code in the HAL (see vectors.S). In fact it's called after your ISR function return. -- Fabrice Gautier <gautier@email.enstfr>