1 # Copyright (C) 2008, 2009 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Tests for Powerpc Decimal Floating Point registers setting and fetching
23 if ![istarget "powerpc*"] then {
24 verbose "Skipping powerpc decimal floating point register tests."
28 set testfile "ppc-dfp"
29 set binfile ${objdir}/${subdir}/${testfile}
30 set srcfile ${testfile}.c
32 if [get_compiler_info $binfile] {
33 warning "get_compiler failed"
37 if ![test_compiler_info gcc*] {
38 # We use GCC's extended asm syntax
39 warning "unknown compiler"
43 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {quiet debug}] != "" } {
44 unsupported "This machine doesn't support Decimal Floating Point."
48 # Start with a fresh gdb.
52 gdb_reinitialize_dir $srcdir/$subdir
55 gdb_breakpoint [gdb_get_line_number "Set DFP rounding mode."]
59 # When the prompt comes back we'll be at the Set DFP rounding mode breakpoint.
60 # Unless the program bails out after checking AT_HWCAP.
62 -re "Program exited with code 01.\[\r\n\]+$gdb_prompt $" {
63 unsupported "This machine doesn't support Decimal Floating Point."
67 -re ".*$gdb_prompt $" {}
70 # First, verify if FPSCR is all zeroes.
71 gdb_test "print \$fpscr" " = 0" "FPSCR is all zeroes"
73 # Step over "set rounding mode" instruction.
76 # Verify that the following bits are set (See Power ISA for details):
78 # 29:31 - DFP Rounding Control
79 gdb_test "print/t \$fpscr" " = 10100000000000000000000000000000000" "FPSCR for round to nearest, ties toward zero rounding mode"