mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/* The common simulator framework for GDB, the GNU Debugger.
|
|
|
|
Copyright 2002-2014 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_
|
|
|
|
#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_ */
|