1 #ifdef USE_PRAGMA_IDENT_SRC
   2 #pragma ident "@(#)assembler_solaris_sparc.cpp  1.11 07/05/05 17:04:53 JVM"
   3 #endif
   4 /*
   5  * Copyright 1999-2008 Sun Microsystems, Inc.  All Rights Reserved.
   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   7  *
   8  * This code is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License version 2 only, as
  10  * published by the Free Software Foundation.
  11  *
  12  * This code is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15  * version 2 for more details (a copy is included in the LICENSE file that
  16  * accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License version
  19  * 2 along with this work; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  21  *
  22  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  23  * CA 95054 USA or visit www.sun.com if you need additional information or
  24  * have any questions.
  25  *  
  26  */
  27 
  28 #include "incls/_precompiled.incl"
  29 #include "incls/_assembler_solaris_sparc.cpp.incl"
  30 
  31 #include <sys/trap.h>          // For trap numbers
  32 #include <v9/sys/psr_compat.h> // For V8 compatibility
  33 
  34 void MacroAssembler::read_ccr_trap(Register ccr_save) {
  35   // Execute a trap to get the PSR, mask and shift 
  36   // to get the condition codes.
  37   get_psr_trap();
  38   nop();
  39   set(PSR_ICC, ccr_save);
  40   and3(O0, ccr_save, ccr_save);
  41   srl(ccr_save, PSR_ICC_SHIFT, ccr_save);
  42 }
  43 
  44 void MacroAssembler::write_ccr_trap(Register ccr_save, Register scratch1, Register scratch2) {
  45   // Execute a trap to get the PSR, shift back
  46   // the condition codes, mask the condition codes
  47   // back into and PSR and trap to write back the
  48   // PSR.
  49   sll(ccr_save, PSR_ICC_SHIFT, scratch2);
  50   get_psr_trap();
  51   nop();
  52   set(~PSR_ICC, scratch1);
  53   and3(O0, scratch1, O0);
  54   or3(O0, scratch2, O0);
  55   set_psr_trap();
  56   nop();
  57 }
  58 
  59 void MacroAssembler::flush_windows_trap() { trap(ST_FLUSH_WINDOWS); }
  60 void MacroAssembler::clean_windows_trap() { trap(ST_CLEAN_WINDOWS); }
  61 void MacroAssembler::get_psr_trap()       { trap(ST_GETPSR); }
  62 void MacroAssembler::set_psr_trap()       { trap(ST_SETPSR); }