static int isbranch()

in kernel/ptrace_h.c [138:160]

• 18 lines of code
• 2 McCabe index (conditional complexity)

static int isbranch(struct task_struct *task, int reson)
{
	unsigned char cond = h8300_get_reg(task, PT_CCR);

	/* encode complex conditions */
	/* B4: N^V
	   B5: Z|(N^V)
	   B6: C|Z */
	__asm__("bld #3,%w0\n\t"
		"bxor #1,%w0\n\t"
		"bst #4,%w0\n\t"
		"bor #2,%w0\n\t"
		"bst #5,%w0\n\t"
		"bld #2,%w0\n\t"
		"bor #0,%w0\n\t"
		"bst #6,%w0\n\t"
		: "=&r"(cond) : "0"(cond) : "cc");
	cond &= condmask[reson >> 1];
	if (!(reson & 1))
		return cond == 0;
	else
		return cond != 0;
}