extern unsigned long long float64_div()

in kernel/cpu/sh4/fpu.c [23:89]

• 61 lines of code
• 1 McCabe index (conditional complexity)

extern unsigned long long float64_div(unsigned long long a,
				      unsigned long long b);
extern unsigned long int float32_div(unsigned long int a, unsigned long int b);
extern unsigned long long float64_mul(unsigned long long a,
				      unsigned long long b);
extern unsigned long int float32_mul(unsigned long int a, unsigned long int b);
extern unsigned long long float64_add(unsigned long long a,
				      unsigned long long b);
extern unsigned long int float32_add(unsigned long int a, unsigned long int b);
extern unsigned long long float64_sub(unsigned long long a,
				      unsigned long long b);
extern unsigned long int float32_sub(unsigned long int a, unsigned long int b);
extern unsigned long int float64_to_float32(unsigned long long a);
static unsigned int fpu_exception_flags;

/*
 * Save FPU registers onto task structure.
 */
void save_fpu(struct task_struct *tsk)
{
	unsigned long dummy;

	enable_fpu();
	asm volatile ("sts.l	fpul, @-%0\n\t"
		      "sts.l	fpscr, @-%0\n\t"
		      "lds	%2, fpscr\n\t"
		      "frchg\n\t"
		      "fmov.s	fr15, @-%0\n\t"
		      "fmov.s	fr14, @-%0\n\t"
		      "fmov.s	fr13, @-%0\n\t"
		      "fmov.s	fr12, @-%0\n\t"
		      "fmov.s	fr11, @-%0\n\t"
		      "fmov.s	fr10, @-%0\n\t"
		      "fmov.s	fr9, @-%0\n\t"
		      "fmov.s	fr8, @-%0\n\t"
		      "fmov.s	fr7, @-%0\n\t"
		      "fmov.s	fr6, @-%0\n\t"
		      "fmov.s	fr5, @-%0\n\t"
		      "fmov.s	fr4, @-%0\n\t"
		      "fmov.s	fr3, @-%0\n\t"
		      "fmov.s	fr2, @-%0\n\t"
		      "fmov.s	fr1, @-%0\n\t"
		      "fmov.s	fr0, @-%0\n\t"
		      "frchg\n\t"
		      "fmov.s	fr15, @-%0\n\t"
		      "fmov.s	fr14, @-%0\n\t"
		      "fmov.s	fr13, @-%0\n\t"
		      "fmov.s	fr12, @-%0\n\t"
		      "fmov.s	fr11, @-%0\n\t"
		      "fmov.s	fr10, @-%0\n\t"
		      "fmov.s	fr9, @-%0\n\t"
		      "fmov.s	fr8, @-%0\n\t"
		      "fmov.s	fr7, @-%0\n\t"
		      "fmov.s	fr6, @-%0\n\t"
		      "fmov.s	fr5, @-%0\n\t"
		      "fmov.s	fr4, @-%0\n\t"
		      "fmov.s	fr3, @-%0\n\t"
		      "fmov.s	fr2, @-%0\n\t"
		      "fmov.s	fr1, @-%0\n\t"
		      "fmov.s	fr0, @-%0\n\t"
		      "lds	%3, fpscr\n\t":"=r" (dummy)
		      :"0"((char *)(&tsk->thread.xstate->hardfpu.status)),
		      "r"(FPSCR_RCHG), "r"(FPSCR_INIT)
		      :"memory");

	disable_fpu();
}