mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
746 B
41 lines
746 B
// SPDX-License-Identifier: GPL-2.0 |
|
#include <linux/types.h> |
|
#include <linux/errno.h> |
|
#include <linux/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; |
|
}
|
|
|