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| author | Andrew Cagney <cagney@redhat.com> | 2002-01-29 03:08:28 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2002-01-29 03:08:28 +0000 |
| commit | 21df7b29752a4983ff2f0e55d170e1703ffe50a9 (patch) | |
| tree | 70724d035081a5fbac1d66d33a144d75bc8cdcef /gdb/vax-tdep.c | |
| parent | 97844dd1464c95dde7ae13a838e331f5c0d1f2c9 (diff) | |
| download | gdb-21df7b29752a4983ff2f0e55d170e1703ffe50a9.tar.gz | |
* config/vax/tm-vax.h (INVALID_FLOAT): Move macro from here...
* vax-tdep.c (INVALID_FLOAT): To here. Document why it is broken.
* rs6000-tdep.c (rs6000_do_registers_info): Delete code wrapped in
#ifdef INVALID_FLOAT.
* infcmd.c (do_registers_info): Ditto.
* values.c (unpack_double): Ditto. Add comment.
* config/ns32k/tm-umax.h (INVALID_FLOAT): Delete macro that was
already commented out.
Diffstat (limited to 'gdb/vax-tdep.c')
| -rw-r--r-- | gdb/vax-tdep.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c index 9a53df0b711..a5fbe3a9d72 100644 --- a/gdb/vax-tdep.c +++ b/gdb/vax-tdep.c @@ -26,6 +26,24 @@ #include "frame.h" #include "value.h" +/* Return 1 if P points to an invalid floating point value. + LEN is the length in bytes -- not relevant on the Vax. */ + +/* FIXME: cagney/2002-01-19: The macro below was originally defined in + tm-vax.h and used in values.c. Two problems. Firstly this is a + very non-portable and secondly it is wrong. The VAX should be + using floatformat and associated methods to identify and handle + invalid floating-point values. Adding to the poor target's woes + there is no floatformat_vax_{f,d} and no TARGET_FLOAT_FORMAT + et.al.. */ + +/* FIXME: cagney/2002-01-19: It turns out that the only thing that + uses this macro is the vax disassembler code (so how old is this + target?). This target should instead be using the opcodes + disassembler. That allowing the macro to be eliminated. */ + +#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000) + /* Vax instructions are never longer than this. */ #define MAXLEN 62 |