Note

Since #pragma interrupt with register bank changing option is transformed to the codes which changes the register bank when an interrupt begins and restores to original bank when the interrupt ends, alll general registers belonging to the original register bank are guaranteed to have the same values before and after the interrupt.
On the other hand, if the register bank is changed within an interrupt handler without using #pragma interrupt or if an #pragma interrupt is used but returning is to be performed by another method than return instruction, general registers are not guaranteed to have the same values before and after the interrupt.