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.
40 lines
708 B
40 lines
708 B
#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;
|
|
}
|
|
|