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Diffstat (limited to 'sim/common/sim-n-endian.h')
| -rw-r--r-- | sim/common/sim-n-endian.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/sim/common/sim-n-endian.h b/sim/common/sim-n-endian.h new file mode 100644 index 0000000..c53e05a --- /dev/null +++ b/sim/common/sim-n-endian.h @@ -0,0 +1,169 @@ +/* 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 N +#error "N must be #defined" +#endif + +#include "symcat.h" + +/* NOTE: See end of file for #undef */ +#define unsigned_N XCONCAT2(unsigned_,N) +#define endian_t2h_N XCONCAT2(endian_t2h_,N) +#define endian_h2t_N XCONCAT2(endian_h2t_,N) +#define _SWAP_N XCONCAT2(_SWAP_,N) +#define swap_N XCONCAT2(swap_,N) +#define endian_h2be_N XCONCAT2(endian_h2be_,N) +#define endian_be2h_N XCONCAT2(endian_be2h_,N) +#define endian_h2le_N XCONCAT2(endian_h2le_,N) +#define endian_le2h_N XCONCAT2(endian_le2h_,N) +#define offset_N XCONCAT2(offset_,N) + +/* TAGS: endian_t2h_1 endian_t2h_2 endian_t2h_4 endian_t2h_8 endian_t2h_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_t2h_N(unsigned_N raw_in) +{ + if (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: endian_h2t_1 endian_h2t_2 endian_h2t_4 endian_h2t_8 endian_h2t_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_h2t_N(unsigned_N raw_in) +{ + if (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: swap_1 swap_2 swap_4 swap_8 swap_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +swap_N(unsigned_N raw_in) +{ + _SWAP_N(return,raw_in); +} + +/* TAGS: endian_h2be_1 endian_h2be_2 endian_h2be_4 endian_h2be_8 endian_h2be_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_h2be_N(unsigned_N raw_in) +{ + if (CURRENT_HOST_BYTE_ORDER == BIG_ENDIAN) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: endian_be2h_1 endian_be2h_2 endian_be2h_4 endian_be2h_8 endian_be2h_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_be2h_N(unsigned_N raw_in) +{ + if (CURRENT_HOST_BYTE_ORDER == BIG_ENDIAN) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: endian_h2le_1 endian_h2le_2 endian_h2le_4 endian_h2le_8 endian_h2le_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_h2le_N(unsigned_N raw_in) +{ + if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: endian_le2h_1 endian_le2h_2 endian_le2h_4 endian_le2h_8 endian_le2h_16 */ + +INLINE_SIM_ENDIAN\ +(unsigned_N) +endian_le2h_N(unsigned_N raw_in) +{ + if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN) { + return raw_in; + } + else { + _SWAP_N(return,raw_in); + } +} + +/* TAGS: offset_1 offset_2 offset_4 offset_8 offset_16 */ + +INLINE_SIM_ENDIAN\ +(void*) +offset_N (unsigned_N *x, + unsigned sizeof_word, + unsigned word) +{ + char *in = (char*)x; + char *out; + unsigned offset = sizeof_word * word; + ASSERT (offset + sizeof_word <= sizeof(unsigned_N)); + ASSERT (word < (sizeof (unsigned_N) / sizeof_word)); + ASSERT ((sizeof (unsigned_N) % sizeof_word) == 0); + if (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) + { + out = in + sizeof (unsigned_N) - offset - sizeof_word; + } + else + { + out = in + offset; + } + return out; +} + + +/* NOTE: See start of file for #define */ +#undef unsigned_N +#undef endian_t2h_N +#undef endian_h2t_N +#undef _SWAP_N +#undef swap_N +#undef endian_h2be_N +#undef endian_be2h_N +#undef endian_h2le_N +#undef endian_le2h_N +#undef offset_N |