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authorM R Swami Reddy <MR.Swami.Reddy@nsc.com>2008-04-08 09:20:06 +0000
committerM R Swami Reddy <MR.Swami.Reddy@nsc.com>2008-04-08 09:20:06 +0000
commitfee8ec00527e96b2844cf398768a413956930c0d (patch)
tree03751ad82f686f7b737b338f32f0a63715a708f0 /sim/cr16/endian.c
parent86b90b55f423a7b4883447b5344a519a303a1fbe (diff)
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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.c79
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);
+}