4 ms·
There is an interrupt-mode stack and a user-mode stack, the stacks are switched on interrupt invocation. The value pushed on to the stack is a special value th
by TickleSteve 9y ago
There is an interrupt-mode stack and a user-mode stack, the stacks are switched on interrupt invocation.
The value pushed on to the stack is a special value that causes a pop into SP to switch stacks back on return.