The Kernel Abstraction - Operating Systems: Principles and Practice - page 83

User-level
Process

Registers Kernel

code:

code:

SS: ESP

CS: EIP
EFLAGS
other
registers:
EAX, EBX,
...

handler() {
pusha
...
}

foo () {
while(...) {
x = x+1;
y = y-2;
}
}

Exception
Stack

stack:

Figure2.9: State of the system before an interrupt handler is invoked on the
x86 architecture.