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author | M R Swami Reddy <MR.Swami.Reddy@nsc.com> | 2008-04-08 09:20:06 +0000 |
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committer | M R Swami Reddy <MR.Swami.Reddy@nsc.com> | 2008-04-08 09:20:06 +0000 |
commit | fee8ec00527e96b2844cf398768a413956930c0d (patch) | |
tree | 03751ad82f686f7b737b338f32f0a63715a708f0 /sim/cr16/endian.c | |
parent | 86b90b55f423a7b4883447b5344a519a303a1fbe (diff) | |
download | gdb-fee8ec00527e96b2844cf398768a413956930c0d.zip gdb-fee8ec00527e96b2844cf398768a413956930c0d.tar.gz gdb-fee8ec00527e96b2844cf398768a413956930c0d.tar.bz2 |
Added Files:
ChangeLog config.in configure configure.ac cr16_sim.h endian.c
gencode.c interp.c Makefile.in simops.c: Add these file for CR16 target simulator.
Diffstat (limited to 'sim/cr16/endian.c')
-rw-r--r-- | sim/cr16/endian.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sim/cr16/endian.c b/sim/cr16/endian.c new file mode 100644 index 0000000..2167bac --- /dev/null +++ b/sim/cr16/endian.c @@ -0,0 +1,79 @@ +/* Simulation code for the CR16 processor. + Copyright (C) 2008 Free Software Foundation, Inc. + Contributed by M Ranga Swami Reddy <MR.Swami.Reddy@nsc.com> + + This file is part of GDB, the GNU debugger. + + 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, 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/>. */ + + +/* If we're being compiled as a .c file, rather than being included in + cr16_sim.h, then ENDIAN_INLINE won't be defined yet. */ + +#ifndef ENDIAN_INLINE +#define NO_ENDIAN_INLINE +#include "cr16_sim.h" +#define ENDIAN_INLINE +#endif + +ENDIAN_INLINE uint16 +get_word (x) + uint8 *x; +{ + return *(uint16 *)x; +} + +ENDIAN_INLINE uint32 +get_longword (x) + uint8 *x; +{ + return (((uint32) *(uint16 *)x) << 16) | ((uint32) *(uint16 *)(x+2)); +} + +ENDIAN_INLINE int64 +get_longlong (x) + uint8 *x; +{ + uint32 top = get_longword (x); + uint32 bottom = get_longword (x+4); + return (((int64)top)<<32) | (int64)bottom; +} + +ENDIAN_INLINE void +write_word (addr, data) + uint8 *addr; + uint16 data; +{ + addr[1] = (data >> 8) & 0xff; + addr[0] = data & 0xff; + +} + +ENDIAN_INLINE void +write_longword (addr, data) + uint8 *addr; + uint32 data; +{ + *(uint16 *)(addr + 2) = (uint16)(data >> 16); + *(uint16 *)(addr) = (uint16)data; +} + +ENDIAN_INLINE void +write_longlong (addr, data) + uint8 *addr; + int64 data; +{ + write_longword (addr+4, (uint32)(data >> 32)); + write_longword (addr, (uint32)data); +} |