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430456e347
The --enable-sim-hostendian flag was purely so people had an escape route for when cross-compiling. This is because historically, AC_C_BIGENDIAN did not work in those cases. That was fixed a while ago though, so we can require that macro everywhere now and simplify a good bit of code. This was done for all the other ports years ago, so catch ppc up.
226 lines
6.1 KiB
C
226 lines
6.1 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _SIM_ENDIAN_H_
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#define _SIM_ENDIAN_H_
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/* C byte conversion functions */
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INLINE_PSIM_ENDIAN(unsigned_1) endian_h2t_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_h2t_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_h2t_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_h2t_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) endian_t2h_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_t2h_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_t2h_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_t2h_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) swap_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) swap_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) swap_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) swap_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) endian_h2be_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_h2be_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_h2be_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_h2be_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) endian_be2h_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_be2h_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_be2h_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_be2h_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) endian_h2le_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_h2le_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_h2le_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_h2le_8(unsigned_8 x);
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INLINE_PSIM_ENDIAN(unsigned_1) endian_le2h_1(unsigned_1 x);
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INLINE_PSIM_ENDIAN(unsigned_2) endian_le2h_2(unsigned_2 x);
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INLINE_PSIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x);
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INLINE_PSIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x);
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/* SWAP */
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#define SWAP_1 swap_1
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#define SWAP_2 swap_2
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#define SWAP_4 swap_4
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#define SWAP_8 swap_8
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/* HOST to BE */
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#define H2BE_1 endian_h2be_1
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#define H2BE_2 endian_h2be_2
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#define H2BE_4 endian_h2be_4
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#define H2BE_8 endian_h2be_8
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#define BE2H_1 endian_be2h_1
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#define BE2H_2 endian_be2h_2
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#define BE2H_4 endian_be2h_4
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#define BE2H_8 endian_be2h_8
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/* HOST to LE */
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#define H2LE_1 endian_h2le_1
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#define H2LE_2 endian_h2le_2
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#define H2LE_4 endian_h2le_4
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#define H2LE_8 endian_h2le_8
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#define LE2H_1 endian_le2h_1
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#define LE2H_2 endian_le2h_2
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#define LE2H_4 endian_le2h_4
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#define LE2H_8 endian_le2h_8
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/* HOST to TARGET */
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#define H2T_1 endian_h2t_1
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#define H2T_2 endian_h2t_2
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#define H2T_4 endian_h2t_4
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#define H2T_8 endian_h2t_8
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#define T2H_1 endian_t2h_1
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#define T2H_2 endian_t2h_2
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#define T2H_4 endian_t2h_4
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#define T2H_8 endian_t2h_8
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/* CONVERT IN PLACE
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These macros, given an argument of unknown size, swap its value in
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place if a host/target conversion is required. */
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#define H2T(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = H2T_1(VARIABLE); break; \
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case 2: VARIABLE = H2T_2(VARIABLE); break; \
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case 4: VARIABLE = H2T_4(VARIABLE); break; \
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case 8: VARIABLE = H2T_8(VARIABLE); break; \
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} \
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} while (0)
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#define T2H(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = T2H_1(VARIABLE); break; \
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case 2: VARIABLE = T2H_2(VARIABLE); break; \
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case 4: VARIABLE = T2H_4(VARIABLE); break; \
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case 8: VARIABLE = T2H_8(VARIABLE); break; \
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} \
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} while (0)
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#define SWAP(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = SWAP_1(VARIABLE); break; \
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case 2: VARIABLE = SWAP_2(VARIABLE); break; \
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case 4: VARIABLE = SWAP_4(VARIABLE); break; \
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case 8: VARIABLE = SWAP_8(VARIABLE); break; \
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} \
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} while (0)
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#define H2BE(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = H2BE_1(VARIABLE); break; \
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case 2: VARIABLE = H2BE_2(VARIABLE); break; \
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case 4: VARIABLE = H2BE_4(VARIABLE); break; \
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case 8: VARIABLE = H2BE_8(VARIABLE); break; \
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} \
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} while (0)
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#define BE2H(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = BE2H_1(VARIABLE); break; \
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case 2: VARIABLE = BE2H_2(VARIABLE); break; \
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case 4: VARIABLE = BE2H_4(VARIABLE); break; \
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case 8: VARIABLE = BE2H_8(VARIABLE); break; \
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} \
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} while (0)
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#define H2LE(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = H2LE_1(VARIABLE); break; \
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case 2: VARIABLE = H2LE_2(VARIABLE); break; \
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case 4: VARIABLE = H2LE_4(VARIABLE); break; \
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case 8: VARIABLE = H2LE_8(VARIABLE); break; \
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} \
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} while (0)
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#define LE2H(VARIABLE) \
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do { \
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switch (sizeof(VARIABLE)) { \
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case 1: VARIABLE = LE2H_1(VARIABLE); break; \
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case 2: VARIABLE = LE2H_2(VARIABLE); break; \
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case 4: VARIABLE = LE2H_4(VARIABLE); break; \
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case 8: VARIABLE = LE2H_8(VARIABLE); break; \
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} \
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} while (0)
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/* TARGET WORD:
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Byte swap a quantity the size of the targets word */
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#define H2T_word H2T_8
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#define T2H_word T2H_8
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#define H2BE_word H2BE_8
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#define BE2H_word BE2H_8
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#define H2LE_word H2LE_8
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#define LE2H_word LE2H_8
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#define SWAP_word SWAP_8
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#define H2T_word H2T_4
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#define T2H_word T2H_4
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#define H2BE_word H2BE_4
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#define BE2H_word BE2H_4
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#define H2LE_word H2LE_4
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#define LE2H_word LE2H_4
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#define SWAP_word SWAP_4
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#endif
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/* TARGET CELL:
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Byte swap a quantity the size of the targets IEEE 1275 memory cell */
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#define H2T_cell H2T_4
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#define T2H_cell T2H_4
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#define H2BE_cell H2BE_4
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#define BE2H_cell BE2H_4
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#define H2LE_cell H2LE_4
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#define LE2H_cell LE2H_4
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#define SWAP_cell SWAP_4
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#if (SIM_ENDIAN_INLINE & INCLUDE_MODULE)
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# include "sim-endian.c"
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#endif
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#endif /* _SIM_ENDIAN_H_ */
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