1#include <linux/types.h> 2#include <linux/errno.h> 3#include <asm/uaccess.h> 4 5#include <asm/sfp-machine.h> 6#include <math-emu/soft-fp.h> 7#include <math-emu/double.h> 8#include <math-emu/single.h> 9 10int 11stfs(void *frS, void *ea) 12{ 13 FP_DECL_D(A); 14 FP_DECL_S(R); 15 FP_DECL_EX; 16 float f; 17 18#ifdef DEBUG 19 printk("%s: S %p, ea %p\n", __func__, frS, ea); 20#endif 21 22 FP_UNPACK_DP(A, frS); 23 24#ifdef DEBUG 25 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 26#endif 27 28 FP_CONV(S, D, 1, 2, R, A); 29 30#ifdef DEBUG 31 printk("R: %ld %lu %ld (%ld)\n", R_s, R_f, R_e, R_c); 32#endif 33 34 _FP_PACK_CANONICAL(S, 1, R); 35 if (!FP_CUR_EXCEPTIONS || !__FPU_TRAP_P(FP_CUR_EXCEPTIONS)) { 36 _FP_PACK_RAW_1_P(S, &f, R); 37 if (copy_to_user(ea, &f, sizeof(float))) 38 return -EFAULT; 39 } 40 41 return FP_CUR_EXCEPTIONS; 42} 43