mirror/binutils-gdb
2
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-27 03:51:15 +08:00
Code Issues Packages Projects Releases Wiki Activity
f3b477bec4
binutils-gdb/gdb/i387-tdep.c

113 lines
3.4 KiB
C
Raw Normal View History

* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
/* Intel 387 floating point stuff.
Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
This file is part of GDB.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "language.h"
#include "gdbcore.h"
#include "ieee-float.h"
struct ext_format ext_format_i387 = {
/* tot sbyte smask expbyte manbyte */
10, 9, 0x80, 9,8, 4,0 /* i387 */
};
/* FIXME: Eliminate these routines when we have the time to change all
the callers. */
* Check in Fred Fish's changes in these modules. Fred will make ChangeLog entries for all of them.
1992-02-22 09:46:16 +08:00
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
void
i387_to_double (from, to)
* Check in Fred Fish's changes in these modules. Fred will make ChangeLog entries for all of them.
1992-02-22 09:46:16 +08:00
char *from;
char *to;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
{
ieee_extended_to_double (&ext_format_i387, from, (double *)to);
}
void
double_to_i387 (from, to)
* Check in Fred Fish's changes in these modules. Fred will make ChangeLog entries for all of them.
1992-02-22 09:46:16 +08:00
char *from;
char *to;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
{
Changes from Fred Fish: * tm-68k.h (FPI_REGNUM): Add. * infrun.c (child_create_inferior): flush stdout and stderr before forking. * configure.in: Handle amigados, amix hosts and targets. * inflow.c: Handle TIOCGLTC_BROKEN for Amiga. From Andreas Schwab: * values.c (show_convenience): Use printf_filtered. * main.c (define_command): Check result of lookup_command for exact match. (echo_command): Use printf_filtered, and force output out. * dbxread.c (read_enum_type): Avoid Modula-2 kludge that breaks C programs. * i387-tdep.c (double_to_i387): Fix typo for double_to_ieee_extended. * utils.c (_initialize_utils): If !ISATTY, don't paginate.
1991-10-16 07:29:34 +08:00
double_to_ieee_extended (&ext_format_i387, (double *)from, to);
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
void
print_387_control_word (control)
* Check in Fred Fish's changes in these modules. Fred will make ChangeLog entries for all of them.
1992-02-22 09:46:16 +08:00
unsigned int control;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("control %s: ", local_hex_string(control));
printf_unfiltered ("compute to ");
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
switch ((control >> 8) & 3)
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
case 0: printf_unfiltered ("24 bits; "); break;
case 1: printf_unfiltered ("(bad); "); break;
case 2: printf_unfiltered ("53 bits; "); break;
case 3: printf_unfiltered ("64 bits; "); break;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("round ");
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
switch ((control >> 10) & 3)
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
case 0: printf_unfiltered ("NEAREST; "); break;
case 1: printf_unfiltered ("DOWN; "); break;
case 2: printf_unfiltered ("UP; "); break;
case 3: printf_unfiltered ("CHOP; "); break;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
if (control & 0x3f)
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("mask:");
if (control & 0x0001) printf_unfiltered (" INVALID");
if (control & 0x0002) printf_unfiltered (" DENORM");
if (control & 0x0004) printf_unfiltered (" DIVZ");
if (control & 0x0008) printf_unfiltered (" OVERF");
if (control & 0x0010) printf_unfiltered (" UNDERF");
if (control & 0x0020) printf_unfiltered (" LOS");
printf_unfiltered (";");
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("\n");
Globs of changes. See the ChangeLog for details. Most related to using the new mmalloc package.
1992-03-15 09:09:14 +08:00
if (control & 0xe080) warning ("reserved bits on: %s\n",
Output hex with local_hex_string for Modula-2 support.
1991-09-19 15:39:54 +08:00
local_hex_string(control & 0xe080));
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
void
print_387_status_word (status)
* Check in Fred Fish's changes in these modules. Fred will make ChangeLog entries for all of them.
1992-02-22 09:46:16 +08:00
unsigned int status;
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("status %s: ", local_hex_string (status));
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
if (status & 0xff)
{
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("exceptions:");
if (status & 0x0001) printf_unfiltered (" INVALID");
if (status & 0x0002) printf_unfiltered (" DENORM");
if (status & 0x0004) printf_unfiltered (" DIVZ");
if (status & 0x0008) printf_unfiltered (" OVERF");
if (status & 0x0010) printf_unfiltered (" UNDERF");
if (status & 0x0020) printf_unfiltered (" LOS");
if (status & 0x0040) printf_unfiltered (" FPSTACK");
printf_unfiltered ("; ");
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("flags: %d%d%d%d; ",
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
(status & 0x4000) != 0,
(status & 0x0400) != 0,
(status & 0x0200) != 0,
(status & 0x0100) != 0);
* config/i386/*aix*, i386aix-nat.c: New files. * configure.in: Use them. * alldeps.mak: List them. * coffread.c (decode_base_type): Deal with anonymous enum type. * i387-tdep.c (print_387_status_word): Add comment re "top". * i386-tdep.c [I386_AIX_TARGET] (i386_extract_return_value): New func. * dbxread.c: Use SEEK_SET and SEEK_CUR, not L_*. Define them if and only if not defined by a header file. * mipsread.c: Don't define L_SET or L_INCR.
1993-06-22 07:46:49 +08:00
Change the stream argument to _filtered to GDB_FILE *. Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
1993-11-02 06:25:23 +08:00
printf_unfiltered ("top %d\n", (status >> 11) & 7);
* i387-tdep.c: New file, consolidates most 80387 support, and eliminates host dependency on double<->extended conversions.
1991-09-19 07:00:51 +08:00
}
Reference in New Issue Copy Permalink