1 files changed, 128 insertions, 0 deletions
diff --git a/sim/common/sim-endian.c b/sim/common/sim-endian.c
new file mode 100644
index 00000000000..36820284ffd
--- /dev/null
+++ b/sim/common/sim-endian.c
@@ -0,0 +1,128 @@
+/*  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 "sim-basics.h"
+#include "sim-assert.h"
+#include "sim-io.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
+
+#ifndef _SWAP_16
+#define _SWAP_16(SET,RAW) \
+  union { unsigned_16 word; unsigned_4 words[4]; } in, out; \
+  in.word = (RAW); \
+  _SWAP_4 (out.words[0] =, in.words[3]); \
+  _SWAP_4 (out.words[1] =, in.words[2]); \
+  _SWAP_4 (out.words[2] =, in.words[1]); \
+  _SWAP_4 (out.words[3] =, in.words[0]); \
+  SET out.word;
+#endif
+
+
+#define N 1
+#include "sim-n-endian.h"
+#undef N
+
+#define N 2
+#include "sim-n-endian.h"
+#undef N
+
+#define N 4
+#include "sim-n-endian.h"
+#undef N
+
+#define N 8
+#include "sim-n-endian.h"
+#undef N
+
+#define N 16
+#include "sim-n-endian.h"
+#undef N
+
+
+INLINE_SIM_ENDIAN\
+(unsigned_8)
+sim_endian_split_16 (unsigned_16 word, int w)
+{
+  if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
+    {
+      return word.a[1 - w];
+    }
+  else
+    {
+      return word.a[w];
+    }
+}
+
+
+INLINE_SIM_ENDIAN\
+(unsigned_16)
+sim_endian_join_16 (unsigned_8 h, unsigned_8 l)
+
+{
+  unsigned_16 word;
+  if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
+    {
+      word.a[0] = l;
+      word.a[1] = h;
+    }
+  else
+    {
+      word.a[0] = h;
+      word.a[1] = l;
+    }
+  return word;
+}
+
+
+
+#endif /* _SIM_ENDIAN_C_ */