arch/sparc64/math-emu/fsubs.c

   1 /* $Id: fsubs.c,v 1.4 1999/05/28 13:45:12 jj Exp $
   2  * arch/sparc64/math-emu/fsubs.c
   3  *
   4  * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
   5  * Copyright (C) 1999 David S. Miller (davem@redhat.com)
   6  *
   7  */
   8
   9 #include "sfp-util.h"
  10 #include "soft-fp.h"
  11 #include "single.h"
  12
  13 int FSUBS(void *rd, void *rs2, void *rs1)
  14 {
  15         FP_DECL_EX;
  16         FP_DECL_S(A); FP_DECL_S(B); FP_DECL_S(R);
  17
  18         FP_UNPACK_SP(A, rs1);
  19         FP_UNPACK_SP(B, rs2);
  20         if (B_c != FP_CLS_NAN)
  21                 B_s ^= 1;
  22         FP_ADD_S(R, A, B);
  23         FP_PACK_SP(rd, R);
  24         FP_HANDLE_EXCEPTIONS;
  25 }