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authorJulian Brown <julian@codesourcery.com>2006-04-26 16:02:07 +0000
committerJulian Brown <julian@codesourcery.com>2006-04-26 16:02:07 +0000
commit0dbde4cf384092a1f2868656dbf07bc3b2c00e3a (patch)
tree6276ce84ddb3b8dda603f9cc4985d6cb4ad91fbe /opcodes
parentdcbf9037d85ff97949fc764a998105372f46d29a (diff)
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* arm-dis.c (print_insn_neon): Disassemble floating-point constant
VMOV.
Diffstat (limited to 'opcodes')
-rw-r--r--opcodes/ChangeLog5
-rw-r--r--opcodes/arm-dis.c27
2 files changed, 30 insertions, 2 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 648e7a1..23e0304 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2006-04-26 Julian Brown <julian@codesourcery.com>
+
+ * arm-dis.c (print_insn_neon): Disassemble floating-point constant
+ VMOV.
+
2006-04-26 Nathan Sidwell <nathan@codesourcery.com>
Julian Brown <julian@codesourcery.com>
diff --git a/opcodes/arm-dis.c b/opcodes/arm-dis.c
index f6cac65..6ca9333 100644
--- a/opcodes/arm-dis.c
+++ b/opcodes/arm-dis.c
@@ -26,6 +26,7 @@
#include "opcode/arm.h"
#include "opintl.h"
#include "safe-ctype.h"
+#include "floatformat.h"
/* FIXME: This shouldn't be done here. */
#include "coff/internal.h"
@@ -2283,6 +2284,7 @@ print_insn_neon (struct disassemble_info *info, long given, bfd_boolean thumb)
unsigned long value = 0, hival = 0;
unsigned shift;
int size = 0;
+ int isfloat = 0;
bits |= ((given >> 24) & 1) << 7;
bits |= ((given >> 16) & 7) << 4;
@@ -2339,11 +2341,12 @@ print_insn_neon (struct disassemble_info *info, long given, bfd_boolean thumb)
/* floating point encoding */
int tmp;
- value = (unsigned long)(bits & 0x7f) << (24 - 6);
+ value = (unsigned long)(bits & 0x7f) << 19;
value |= (unsigned long)(bits & 0x80) << 24;
tmp = bits & 0x40 ? 0x3c : 0x40;
value |= (unsigned long)tmp << 24;
size = 32;
+ isfloat = 1;
}
else
{
@@ -2363,7 +2366,27 @@ print_insn_neon (struct disassemble_info *info, long given, bfd_boolean thumb)
break;
case 32:
- func (stream, "#%ld\t; 0x%.8lx", value, value);
+ if (isfloat)
+ {
+ unsigned char valbytes[4];
+ double fvalue;
+
+ /* Do this a byte at a time so we don't have to
+ worry about the host's endianness. */
+ valbytes[0] = value & 0xff;
+ valbytes[1] = (value >> 8) & 0xff;
+ valbytes[2] = (value >> 16) & 0xff;
+ valbytes[3] = (value >> 24) & 0xff;
+
+ floatformat_to_double
+ (&floatformat_ieee_single_little, valbytes,
+ &fvalue);
+
+ func (stream, "#%.7g\t; 0x%.8lx", fvalue,
+ value);
+ }
+ else
+ func (stream, "#%ld\t; 0x%.8lx", value, value);
break;
case 64: