[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / powerpc / math-emu / fsqrt.c

#include <linux/types.h>
#include <linux/errno.h>
#include <asm/uaccess.h>

#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>

int
fsqrt(void *frD, void *frB)
{
	FP_DECL_D(B);
	FP_DECL_D(R);
	FP_DECL_EX;

#ifdef DEBUG
	printk("%s: %p %p %p %p\n", __func__, frD, frB);
#endif

	FP_UNPACK_DP(B, frB);

#ifdef DEBUG
	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif

	if (B_s && B_c != FP_CLS_ZERO)
		FP_SET_EXCEPTION(EFLAG_VXSQRT);
	if (B_c == FP_CLS_NAN)
		FP_SET_EXCEPTION(EFLAG_VXSNAN);

	FP_SQRT_D(R, B);

#ifdef DEBUG
	printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif

	__FP_PACK_D(frD, R);

	return FP_CUR_EXCEPTIONS;
}
Commit	Line	Data
1da177e4 LT	1	#include <linux/types.h>
	2	#include <linux/errno.h>
	3	#include <asm/uaccess.h>
	4
d2b194ed KG	5	#include <asm/sfp-machine.h>
	6	#include <math-emu/soft-fp.h>
	7	#include <math-emu/double.h>
1da177e4 LT	8
	9	int
	10	fsqrt(void frD, void frB)
	11	{
	12	FP_DECL_D(B);
	13	FP_DECL_D(R);
d2b194ed	14	FP_DECL_EX;
1da177e4 LT	15
1da177e4 LT	16	#ifdef DEBUG
e48b1b45	17	printk("%s: %p %p %p %p\n", __func__, frD, frB);
1da177e4 LT	18	#endif
1da177e4 LT	19
d2b194ed	20	FP_UNPACK_DP(B, frB);
1da177e4 LT	21
	22	#ifdef DEBUG
	23	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
	24	#endif
	25
	26	if (B_s && B_c != FP_CLS_ZERO)
033b8a33	27	FP_SET_EXCEPTION(EFLAG_VXSQRT);
1da177e4	28	if (B_c == FP_CLS_NAN)
033b8a33	29	FP_SET_EXCEPTION(EFLAG_VXSNAN);
1da177e4 LT	30
	31	FP_SQRT_D(R, B);
	32
	33	#ifdef DEBUG
	34	printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
	35	#endif
	36
d2b194ed KG	37	__FP_PACK_D(frD, R);
	38
	39	return FP_CUR_EXCEPTIONS;
1da177e4	40	}