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* arm-dis.c (print_insn_neon): Disassemble floating-point constant

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VMOV.
This commit is contained in:
Julian Brown 2006-04-26 16:02:07 +00:00
parent dcbf9037d8
commit 0dbde4cf38
2 changed files with 30 additions and 2 deletions
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5
opcodes/ChangeLog
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@ -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>

27
opcodes/arm-dis.c
View File

@ -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: