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authorAndrew Cagney <cagney@redhat.com>1997-03-14 15:13:58 +0000
committerAndrew Cagney <cagney@redhat.com>1997-03-14 15:13:58 +0000
commitf2de7dfd8cf1ffd6edc7ed650e709c7fa4488da1 (patch)
tree45023095bbd84ccadf676659aa9cc9220536793f /sim/common/sim-bits.c
parent35a78bd09b847d649fd42802049b5160ea1cea4a (diff)
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Add a number of per-simulator options: hostendian, endian, inline, warnings.
Rename *-n.h files to be dos compatible
Diffstat (limited to 'sim/common/sim-bits.c')
-rw-r--r--sim/common/sim-bits.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/sim/common/sim-bits.c b/sim/common/sim-bits.c
new file mode 100644
index 0000000..1f0a8e5
--- /dev/null
+++ b/sim/common/sim-bits.c
@@ -0,0 +1,105 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, 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 _SIM_BITS_C_
+#define _SIM_BITS_C_
+
+#include "sim-basics.h"
+
+
+INLINE_SIM_BITS\
+(unsigned_word)
+MASKED(unsigned_word val,
+ unsigned start,
+ unsigned stop)
+{
+ return ((val) & MASK(start, stop));
+}
+
+
+
+INLINE_SIM_BITS\
+(unsigned_word)
+LSMASKED(unsigned_word val,
+ unsigned nr_bits)
+{
+ return MASKED(val,
+ WITH_TARGET_WORD_BITSIZE - nr_bits,
+ WITH_TARGET_WORD_BITSIZE - 1);
+}
+
+
+
+INLINE_SIM_BITS\
+(unsigned_word)
+EXTRACTED(unsigned_word val,
+ unsigned start,
+ unsigned stop)
+{
+ ASSERT(start <= stop);
+#if (WITH_TARGET_WORD_BITSIZE == 64)
+ return EXTRACTED64(val, start, stop);
+#endif
+#if (WITH_TARGET_WORD_BITSIZE == 32)
+ if (stop < 32)
+ return 0;
+ else
+ return ((val >> (63 - stop))
+ & MASK(start+(63-stop), 63));
+#endif
+}
+
+
+INLINE_SIM_BITS\
+(unsigned_word)
+INSERTED(unsigned_word val,
+ unsigned start,
+ unsigned stop)
+{
+ ASSERT(start <= stop);
+#if (WITH_TARGET_WORD_BITSIZE == 64)
+ return INSERTED64(val, start, stop);
+#endif
+#if (WITH_TARGET_WORD_BITSIZE == 32)
+ if (stop < 32)
+ return 0;
+ else
+ return ((val & MASK(start+(63-stop), 63))
+ << (63 - stop));
+#endif
+}
+
+
+
+
+#define N 16
+#include "sim-n-bits.h"
+#undef N
+
+#define N 32
+#include "sim-n-bits.h"
+#undef N
+
+#define N 64
+#include "sim-n-bits.h"
+#undef N
+
+#endif /* _SIM_BITS_C_ */