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Hello! In the RL78 embOS manual it is described that zero-latency interrupts must not execute any embOS function. Therefore it is not allowed to call the functions OS_EnterIntStack resp. OS_LeaveIntStack, is that correct? This means that all tasks must preserve some space on their stack for the zero-latency interrupts because the switching is not allowed. Depending on the zero-latency ISR implementation this can afford large stacks for all tasks... ;( Is there any other possibility to switch the…