Renesas Technology, Tools FAQs
Document Number: 01051181_e
Q.
I want to use the registers of bank 1 in the OS-dependent interrupt handler. How should I describe it?
A.
Registers of bank 1 in the OS-dependent interrupt handler can not be described in C language. You can describe in assembly
language only. Describe the interrupt handler entrance and exit as follows:
(Make sure you clear B flag before issuing the ret_int system call.)
Example: interrupt:
fset B <--
:
fclr B <--
ret_int <--
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