diff options
Diffstat (limited to 'sim/ppc/sim-endian.c')
-rw-r--r-- | sim/ppc/sim-endian.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sim/ppc/sim-endian.c b/sim/ppc/sim-endian.c new file mode 100644 index 0000000..9fe3669 --- /dev/null +++ b/sim/ppc/sim-endian.c @@ -0,0 +1,74 @@ +/* This file is part of the program psim. + + Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> + + This program 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 of the License, or + (at your option) any later version. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + */ + + +#ifndef _SIM_ENDIAN_C_ +#define _SIM_ENDIAN_C_ + +#include "config.h" +#include "basics.h" + + +#if !defined(_SWAP_1) +#define _SWAP_1(SET,RAW) SET (RAW) +#endif + +#if !defined(_SWAP_2) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htons) +#define _SWAP_2(SET,RAW) SET htons (RAW) +#endif + +#ifndef _SWAP_2 +#define _SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8)) +#endif + +#if !defined(_SWAP_4) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htonl) +#define _SWAP_4(SET,RAW) SET htonl (RAW) +#endif + +#ifndef _SWAP_4 +#define _SWAP_4(SET,RAW) SET (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24)) +#endif + +#ifndef _SWAP_8 +#define _SWAP_8(SET,RAW) \ + union { unsigned_8 dword; unsigned_4 words[2]; } in, out; \ + in.dword = RAW; \ + _SWAP_4 (out.words[0] =, in.words[1]); \ + _SWAP_4 (out.words[1] =, in.words[0]); \ + SET out.dword; +#endif + +#define N 1 +#include "sim-endian-n.h" +#undef N + +#define N 2 +#include "sim-endian-n.h" +#undef N + +#define N 4 +#include "sim-endian-n.h" +#undef N + +#define N 8 +#include "sim-endian-n.h" +#undef N + +#endif /* _SIM_ENDIAN_C_ */ |