| /* Move half-word library function. |
| Copyright (C) 2000, 2003 Free Software Foundation, Inc. |
| Contributed by Red Hat, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software ; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation * either version 2, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY ; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* As a special exception, if you link this library with other files, |
| some of which are compiled with GCC, to produce an executable, |
| this library does not by itself cause the resulting executable |
| to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why |
| the executable file might be covered by the GNU General Public License. */ |
| |
| void |
| __cmovh (short *dest, const short *src, unsigned len) |
| { |
| unsigned i; |
| unsigned num = len >> 1; |
| char *dest_byte = (char *)dest; |
| const char *src_byte = (const char *)src; |
| |
| if (dest_byte < src_byte || dest_byte > src_byte+len) |
| { |
| for (i = 0; i < num; i++) |
| dest[i] = src[i]; |
| |
| if ((len & 1) != 0) |
| dest_byte[len-1] = src_byte[len-1]; |
| } |
| else |
| { |
| while (len-- > 0) |
| dest_byte[len] = src_byte[len]; |
| } |
| } |