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/* The common simulator framework for GDB, the GNU Debugger.
Copyright 2002-2021 Free Software Foundation, Inc.
Contributed by Andrew Cagney and Red Hat.
This file is part of GDB.
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 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef _SIM_ENDIAN_C_
#define _SIM_ENDIAN_C_
/* This must come before any other includes. */
#include "defs.h"
#include "sim-basics.h"
#include "sim-assert.h"
#if !defined(_SWAP_1)
#define _SWAP_1(SET,RAW) SET (RAW)
#endif
#if !defined(_SWAP_2) && (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE) && 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) && (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE) && 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 (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE)
{
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 (HOST_BYTE_ORDER == BFD_ENDIAN_LITTLE)
{
word.a[0] = l;
word.a[1] = h;
}
else
{
word.a[0] = h;
word.a[1] = l;
}
return word;
}
#endif /* _SIM_ENDIAN_C_ */
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