Hi, the following code snippet is from arch/mips/pmc-sierra/yosemite/irq-handler.S: ll_duart_irq: li a0, 4 move a1, sp jal do_IRQ j ret_from_irq I wonder if this is correct. AFAIK, a jump instruction must not occupy the delay slot of another branch or jump instruction. Since the 'jal' returns to the first instruction after the delay slot, I would expect the effect of the 'j' instruction to be cancelled. Or is this some kind of trick I do not understand? tk -- -------------------------------------------------- Thomas Koeller, Software Development Basler Vision Technologies thomas dot koeller at baslerweb dot com http://www.baslerweb.com ==============================
