gdb/testsuite/gdb.arch/iwmmxt-regs.c

   1 /* Register test program.
   2
   3    Copyright 2007-2015 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 void
  21 read_regs (unsigned long long regs[16], unsigned long control_regs[6])
  22 {
  23   asm volatile ("wstrd wR0, %0" : "=m" (regs[0]));
  24   asm volatile ("wstrd wR1, %0" : "=m" (regs[1]));
  25   asm volatile ("wstrd wR2, %0" : "=m" (regs[2]));
  26   asm volatile ("wstrd wR3, %0" : "=m" (regs[3]));
  27   asm volatile ("wstrd wR4, %0" : "=m" (regs[4]));
  28   asm volatile ("wstrd wR5, %0" : "=m" (regs[5]));
  29   asm volatile ("wstrd wR6, %0" : "=m" (regs[6]));
  30   asm volatile ("wstrd wR7, %0" : "=m" (regs[7]));
  31   asm volatile ("wstrd wR8, %0" : "=m" (regs[8]));
  32   asm volatile ("wstrd wR9, %0" : "=m" (regs[9]));
  33   asm volatile ("wstrd wR10, %0" : "=m" (regs[10]));
  34   asm volatile ("wstrd wR11, %0" : "=m" (regs[11]));
  35   asm volatile ("wstrd wR12, %0" : "=m" (regs[12]));
  36   asm volatile ("wstrd wR13, %0" : "=m" (regs[13]));
  37   asm volatile ("wstrd wR14, %0" : "=m" (regs[14]));
  38   asm volatile ("wstrd wR15, %0" : "=m" (regs[15]));
  39
  40   asm volatile ("wstrw wCSSF, %0" : "=m" (control_regs[0]));
  41   asm volatile ("wstrw wCASF, %0" : "=m" (control_regs[1]));
  42   asm volatile ("wstrw wCGR0, %0" : "=m" (control_regs[2]));
  43   asm volatile ("wstrw wCGR1, %0" : "=m" (control_regs[3]));
  44   asm volatile ("wstrw wCGR2, %0" : "=m" (control_regs[4]));
  45   asm volatile ("wstrw wCGR3, %0" : "=m" (control_regs[5]));
  46 }
  47
  48 void
  49 write_regs (unsigned long long regs[16], unsigned long control_regs[6])
  50 {
  51   asm volatile ("wldrd wR0, %0" : : "m" (regs[0]));
  52   asm volatile ("wldrd wR1, %0" : : "m" (regs[1]));
  53   asm volatile ("wldrd wR2, %0" : : "m" (regs[2]));
  54   asm volatile ("wldrd wR3, %0" : : "m" (regs[3]));
  55   asm volatile ("wldrd wR4, %0" : : "m" (regs[4]));
  56   asm volatile ("wldrd wR5, %0" : : "m" (regs[5]));
  57   asm volatile ("wldrd wR6, %0" : : "m" (regs[6]));
  58   asm volatile ("wldrd wR7, %0" : : "m" (regs[7]));
  59   asm volatile ("wldrd wR8, %0" : : "m" (regs[8]));
  60   asm volatile ("wldrd wR9, %0" : : "m" (regs[9]));
  61   asm volatile ("wldrd wR10, %0" : : "m" (regs[10]));
  62   asm volatile ("wldrd wR11, %0" : : "m" (regs[11]));
  63   asm volatile ("wldrd wR12, %0" : : "m" (regs[12]));
  64   asm volatile ("wldrd wR13, %0" : : "m" (regs[13]));
  65   asm volatile ("wldrd wR14, %0" : : "m" (regs[14]));
  66   asm volatile ("wldrd wR15, %0" : : "m" (regs[15]));
  67
  68   asm volatile ("wldrw wCSSF, %0" : : "m" (control_regs[0]));
  69   asm volatile ("wldrw wCASF, %0" : : "m" (control_regs[1]));
  70   asm volatile ("wldrw wCGR0, %0" : : "m" (control_regs[2]));
  71   asm volatile ("wldrw wCGR1, %0" : : "m" (control_regs[3]));
  72   asm volatile ("wldrw wCGR2, %0" : : "m" (control_regs[4]));
  73   asm volatile ("wldrw wCGR3, %0" : : "m" (control_regs[5]));
  74 }
  75
  76 int
  77 main ()
  78 {
  79   unsigned long long regs[16];
  80   unsigned long control_regs[6];
  81
  82   read_regs (regs, control_regs);
  83   write_regs (regs, control_regs);
  84
  85   return 0;
  86 }