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* mips-tdep.c (isa_NAN): Don't return true on -0.

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Jim Kingdon 1993-06-11 18:33:12 +00:00
parent 91c87211d6
commit f68e693158
1 changed files with 1 additions and 23 deletions
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24
gdb/mips-tdep.c
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@ -26,33 +26,11 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "value.h" #include "value.h"
#include "gdbcmd.h" #include "gdbcmd.h"
#include "language.h" #include "language.h"
#ifdef USG
#include <sys/types.h>
#endif
#include <sys/param.h>
#include <signal.h>
#include <sys/ioctl.h>
#include "gdbcore.h" #include "gdbcore.h"
#include "symfile.h" #include "symfile.h"
#include "objfiles.h" #include "objfiles.h"
#ifndef MIPSMAGIC
#ifdef MIPSEL
#define MIPSMAGIC MIPSELMAGIC
#else
#define MIPSMAGIC MIPSEBMAGIC
#endif
#endif
#define VM_MIN_ADDRESS (unsigned)0x400000 #define VM_MIN_ADDRESS (unsigned)0x400000
#include <sys/user.h> /* After a.out.h */
#include <sys/file.h>
#include <sys/stat.h>
/* Some MIPS boards don't support floating point, so we permit the /* Some MIPS boards don't support floating point, so we permit the
user to turn it off. */ user to turn it off. */
@ -726,7 +704,7 @@ isa_NAN(p, len)
{ {
exponent = *p; exponent = *p;
exponent = exponent << 1 >> (32 - SINGLE_EXP_BITS - 1); exponent = exponent << 1 >> (32 - SINGLE_EXP_BITS - 1);
return ((exponent == -1) || (! exponent && *p)); return ((exponent == -1) || (exponent == 0 && ((*p << 1) != 0)));
} }
else if (len == 8) else if (len == 8)
{ {