RTEMS 4.8.0 On-Line Library

Intel/AMD x86 Specific Information Interrupt Stack Frame

RTEMS CPU Architecture Supplement

3.4.2: Interrupt Stack Frame

The structure of the Interrupt Stack Frame for the i386 which is placed on the interrupt stack by the processor in response to an interrupt is as follows:

Old EFLAGS Register		0x0
UNUSED	Old CS	0x2
Old EIP		0x4

RTEMS CPU Architecture Supplement