1 #include <linux/types.h> 2 #include <linux/errno.h> 3 #include <asm/uaccess.h> 4 5 #include "soft-fp.h" 6 #include "double.h" 7 #include "single.h" 8 9 int 10 lfs(void *frD, void *ea) 11 { 12 FP_DECL_D(R); 13 FP_DECL_S(A); 14 float f; 15 16 #ifdef DEBUG 17 printk("%s: D %p, ea %p\n", __func__, frD, ea); 18 #endif 19 20 if (copy_from_user(&f, ea, sizeof(float))) 21 return -EFAULT; 22 23 __FP_UNPACK_S(A, &f); 24 25 #ifdef DEBUG 26 printk("A: %ld %lu %ld (%ld) [%08lx]\n", A_s, A_f, A_e, A_c, 27 *(unsigned long *)&f); 28 #endif 29 30 FP_CONV(D, S, 2, 1, R, A); 31 32 #ifdef DEBUG 33 printk("R: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c); 34 #endif 35 36 return __FP_PACK_D(frD, R); 37 } 38