int h8300_put_reg()

in kernel/ptrace.c [54:86]

• 32 lines of code
• 4 McCabe index (conditional complexity)

int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
{
	unsigned short oldccr;
	unsigned short oldexr;

	switch (regno) {
	case PT_USP:
		task->thread.usp = data - sizeof(long)*2;
	case PT_CCR:
		oldccr = *(unsigned short *)(task->thread.esp0 +
					     register_offset[regno]);
		oldccr &= ~CCR_MASK;
		data &= CCR_MASK;
		data |= oldccr;
		*(unsigned short *)(task->thread.esp0 +
				    register_offset[regno]) = data;
		break;
	case PT_EXR:
		oldexr = *(unsigned short *)(task->thread.esp0 +
					     register_offset[regno]);
		oldccr &= ~EXR_MASK;
		data &= EXR_MASK;
		data |= oldexr;
		*(unsigned short *)(task->thread.esp0 +
				    register_offset[regno]) = data;
		break;
	default:
		*(unsigned long *)(task->thread.esp0 +
				   register_offset[regno]) = data;
		break;
	}
	return 0;
}