/* This file is part of the program psim. Copyright (C) 1994-1995, Andrew Cagney 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_H_ #define _SIM_ENDIAN_H_ /* C byte conversion functions */ INLINE_PSIM_ENDIAN(unsigned_1) endian_h2t_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_h2t_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_h2t_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_h2t_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) endian_t2h_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_t2h_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_t2h_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_t2h_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) swap_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) swap_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) swap_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) swap_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) endian_h2be_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_h2be_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_h2be_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_h2be_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) endian_be2h_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_be2h_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_be2h_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_be2h_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) endian_h2le_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_h2le_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_h2le_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_h2le_8(unsigned_8 x); INLINE_PSIM_ENDIAN(unsigned_1) endian_le2h_1(unsigned_1 x); INLINE_PSIM_ENDIAN(unsigned_2) endian_le2h_2(unsigned_2 x); INLINE_PSIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x); INLINE_PSIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x); /* Host dependant: The CPP below defines information about the compilation host. In particular it defines the macro's: WITH_HOST_BYTE_ORDER The byte order of the host. Could be any of LITTLE_ENDIAN, BIG_ENDIAN or 0 (unknown). Those macro's also need to be defined. */ /* NetBSD: NetBSD is easy, everything you could ever want is in a header file (well almost :-) */ #if defined(__NetBSD__) # include # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BYTE_ORDER # endif # if (BYTE_ORDER != WITH_HOST_BYTE_ORDER) # error "host endian incorrectly configured, check config.h" # endif #endif /* Linux is similarly easy. */ #if defined(__linux__) # include # include # if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN) # define LITTLE_ENDIAN __LITTLE_ENDIAN # endif # if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN) # define BIG_ENDIAN __BIG_ENDIAN # endif # if defined(__BYTE_ORDER) && !defined(BYTE_ORDER) # define BYTE_ORDER __BYTE_ORDER # endif # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BYTE_ORDER # endif # if (BYTE_ORDER != WITH_HOST_BYTE_ORDER) # error "host endian incorrectly configured, check config.h" # endif #endif /* INSERT HERE - hosts that have available LITTLE_ENDIAN and BIG_ENDIAN macro's */ /* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */ #ifndef LITTLE_ENDIAN #define LITTLE_ENDIAN 1234 #endif #ifndef BIG_ENDIAN #define BIG_ENDIAN 4321 #endif /* SunOS on SPARC: Big endian last time I looked */ #if defined(sparc) || defined(__sparc__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BIG_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) # error "sun was big endian last time I looked ..." # endif #endif /* Random x86 Little endian last time I looked */ #if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) # error "x86 was little endian last time I looked ..." # endif #endif #if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP #undef htonl #undef ntohl #define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; }) #define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; }) #endif /* Power or PowerPC running AIX */ #if defined(_POWER) && defined(_AIX) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BIG_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) # error "Power/PowerPC AIX was big endian last time I looked ..." # endif #endif /* Solaris running PowerPC */ #if defined(__PPC) && defined(__sun__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) # error "Solaris on PowerPCs was little endian last time I looked ..." # endif #endif /* HP/PA */ #if defined(__hppa__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BIG_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) # error "HP/PA was big endian last time I looked ..." # endif #endif /* Big endian MIPS */ #if defined(__MIPSEB__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER BIG_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN) # error "MIPSEB was big endian last time I looked ..." # endif #endif /* Little endian MIPS */ #if defined(__MIPSEL__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) # error "MIPSEL was little endian last time I looked ..." # endif #endif /* Windows NT */ #if defined(__WIN32__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) # error "Windows NT was little endian last time I looked ..." # endif #endif /* Alpha running DEC unix */ #if defined(__osf__) && defined(__alpha__) # if (WITH_HOST_BYTE_ORDER == 0) # undef WITH_HOST_BYTE_ORDER # define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN # endif # if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN) # error "AXP running DEC unix was little endian last time I looked ..." # endif #endif /* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and BIG_ENDIAN definitions available. */ /* SWAP */ #define SWAP_1 swap_1 #define SWAP_2 swap_2 #define SWAP_4 swap_4 #define SWAP_8 swap_8 /* HOST to BE */ #define H2BE_1 endian_h2be_1 #define H2BE_2 endian_h2be_2 #define H2BE_4 endian_h2be_4 #define H2BE_8 endian_h2be_8 #define BE2H_1 endian_be2h_1 #define BE2H_2 endian_be2h_2 #define BE2H_4 endian_be2h_4 #define BE2H_8 endian_be2h_8 /* HOST to LE */ #define H2LE_1 endian_h2le_1 #define H2LE_2 endian_h2le_2 #define H2LE_4 endian_h2le_4 #define H2LE_8 endian_h2le_8 #define LE2H_1 endian_le2h_1 #define LE2H_2 endian_le2h_2 #define LE2H_4 endian_le2h_4 #define LE2H_8 endian_le2h_8 /* HOST to TARGET */ #define H2T_1 endian_h2t_1 #define H2T_2 endian_h2t_2 #define H2T_4 endian_h2t_4 #define H2T_8 endian_h2t_8 #define T2H_1 endian_t2h_1 #define T2H_2 endian_t2h_2 #define T2H_4 endian_t2h_4 #define T2H_8 endian_t2h_8 /* CONVERT IN PLACE These macros, given an argument of unknown size, swap its value in place if a host/target conversion is required. */ #define H2T(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = H2T_1(VARIABLE); break; \ case 2: VARIABLE = H2T_2(VARIABLE); break; \ case 4: VARIABLE = H2T_4(VARIABLE); break; \ case 8: VARIABLE = H2T_8(VARIABLE); break; \ } \ } while (0) #define T2H(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = T2H_1(VARIABLE); break; \ case 2: VARIABLE = T2H_2(VARIABLE); break; \ case 4: VARIABLE = T2H_4(VARIABLE); break; \ case 8: VARIABLE = T2H_8(VARIABLE); break; \ } \ } while (0) #define SWAP(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = SWAP_1(VARIABLE); break; \ case 2: VARIABLE = SWAP_2(VARIABLE); break; \ case 4: VARIABLE = SWAP_4(VARIABLE); break; \ case 8: VARIABLE = SWAP_8(VARIABLE); break; \ } \ } while (0) #define H2BE(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = H2BE_1(VARIABLE); break; \ case 2: VARIABLE = H2BE_2(VARIABLE); break; \ case 4: VARIABLE = H2BE_4(VARIABLE); break; \ case 8: VARIABLE = H2BE_8(VARIABLE); break; \ } \ } while (0) #define BE2H(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = BE2H_1(VARIABLE); break; \ case 2: VARIABLE = BE2H_2(VARIABLE); break; \ case 4: VARIABLE = BE2H_4(VARIABLE); break; \ case 8: VARIABLE = BE2H_8(VARIABLE); break; \ } \ } while (0) #define H2LE(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = H2LE_1(VARIABLE); break; \ case 2: VARIABLE = H2LE_2(VARIABLE); break; \ case 4: VARIABLE = H2LE_4(VARIABLE); break; \ case 8: VARIABLE = H2LE_8(VARIABLE); break; \ } \ } while (0) #define LE2H(VARIABLE) \ do { \ switch (sizeof(VARIABLE)) { \ case 1: VARIABLE = LE2H_1(VARIABLE); break; \ case 2: VARIABLE = LE2H_2(VARIABLE); break; \ case 4: VARIABLE = LE2H_4(VARIABLE); break; \ case 8: VARIABLE = LE2H_8(VARIABLE); break; \ } \ } while (0) /* TARGET WORD: Byte swap a quantity the size of the targets word */ #if (WITH_TARGET_WORD_BITSIZE == 64) #define H2T_word H2T_8 #define T2H_word T2H_8 #define H2BE_word H2BE_8 #define BE2H_word BE2H_8 #define H2LE_word H2LE_8 #define LE2H_word LE2H_8 #define SWAP_word SWAP_8 #endif #if (WITH_TARGET_WORD_BITSIZE == 32) #define H2T_word H2T_4 #define T2H_word T2H_4 #define H2BE_word H2BE_4 #define BE2H_word BE2H_4 #define H2LE_word H2LE_4 #define LE2H_word LE2H_4 #define SWAP_word SWAP_4 #endif /* TARGET CELL: Byte swap a quantity the size of the targets IEEE 1275 memory cell */ #define H2T_cell H2T_4 #define T2H_cell T2H_4 #define H2BE_cell H2BE_4 #define BE2H_cell BE2H_4 #define H2LE_cell H2LE_4 #define LE2H_cell LE2H_4 #define SWAP_cell SWAP_4 #if (SIM_ENDIAN_INLINE & INCLUDE_MODULE) # include "sim-endian.c" #endif #endif /* _SIM_ENDIAN_H_ */