1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/types.h> 3 #include <linux/errno.h> 4 #include <linux/uaccess.h> 5 6 #include <asm/sfp-machine.h> 7 #include <math-emu/soft-fp.h> 8 #include <math-emu/double.h> 9 #include <math-emu/single.h> 10 11 int 12 fsqrts(void *frD, void *frB) 13 { 14 FP_DECL_D(B); 15 FP_DECL_D(R); 16 FP_DECL_EX; 17 18 #ifdef DEBUG 19 printk("%s: %p %p %p %p\n", __func__, frD, frB); 20 #endif 21 22 FP_UNPACK_DP(B, frB); 23 24 #ifdef DEBUG 25 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c); 26 #endif 27 28 if (B_s && B_c != FP_CLS_ZERO) 29 FP_SET_EXCEPTION(EFLAG_VXSQRT); 30 if (B_c == FP_CLS_NAN) 31 FP_SET_EXCEPTION(EFLAG_VXSNAN); 32 33 FP_SQRT_D(R, B); 34 35 #ifdef DEBUG 36 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 37 #endif 38 39 __FP_PACK_DS(frD, R); 40 41 return FP_CUR_EXCEPTIONS; 42 } 43