target-mips/op_mem.c

   1 /*
   2  *  MIPS emulation memory micro-operations for qemu.
   3  *
   4  *  Copyright (c) 2004-2005 Jocelyn Mayer
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /* Standard loads and stores */
  22 void glue(op_lb, MEMSUFFIX) (void)
  23 {
  24     T0 = glue(ldsb, MEMSUFFIX)(T0);
  25     RETURN();
  26 }
  27
  28 void glue(op_lbu, MEMSUFFIX) (void)
  29 {
  30     T0 = glue(ldub, MEMSUFFIX)(T0);
  31     RETURN();
  32 }
  33
  34 void glue(op_sb, MEMSUFFIX) (void)
  35 {
  36     glue(stb, MEMSUFFIX)(T0, T1);
  37     RETURN();
  38 }
  39
  40 void glue(op_lh, MEMSUFFIX) (void)
  41 {
  42     T0 = glue(ldsw, MEMSUFFIX)(T0);
  43     RETURN();
  44 }
  45
  46 void glue(op_lhu, MEMSUFFIX) (void)
  47 {
  48     T0 = glue(lduw, MEMSUFFIX)(T0);
  49     RETURN();
  50 }
  51
  52 void glue(op_sh, MEMSUFFIX) (void)
  53 {
  54     glue(stw, MEMSUFFIX)(T0, T1);
  55     RETURN();
  56 }
  57
  58 void glue(op_lw, MEMSUFFIX) (void)
  59 {
  60     T0 = glue(ldl, MEMSUFFIX)(T0);
  61     RETURN();
  62 }
  63
  64 void glue(op_sw, MEMSUFFIX) (void)
  65 {
  66     glue(stl, MEMSUFFIX)(T0, T1);
  67     RETURN();
  68 }
  69
  70 /* "half" load and stores */
  71 void glue(op_lwl, MEMSUFFIX) (void)
  72 {
  73     CALL_FROM_TB0(glue(do_lwl, MEMSUFFIX));
  74     RETURN();
  75 }
  76
  77 void glue(op_lwr, MEMSUFFIX) (void)
  78 {
  79     CALL_FROM_TB0(glue(do_lwr, MEMSUFFIX));
  80     RETURN();
  81 }
  82
  83 void glue(op_swl, MEMSUFFIX) (void)
  84 {
  85     CALL_FROM_TB0(glue(do_swl, MEMSUFFIX));
  86     RETURN();
  87 }
  88
  89 void glue(op_swr, MEMSUFFIX) (void)
  90 {
  91     CALL_FROM_TB0(glue(do_swr, MEMSUFFIX));
  92     RETURN();
  93 }
  94
  95 void glue(op_ll, MEMSUFFIX) (void)
  96 {
  97     T1 = T0;
  98     T0 = glue(ldl, MEMSUFFIX)(T0);
  99     env->CP0_LLAddr = T1;
 100     RETURN();
 101 }
 102
 103 void glue(op_sc, MEMSUFFIX) (void)
 104 {
 105     CALL_FROM_TB0(dump_sc);
 106     if (T0 == env->CP0_LLAddr) {
 107         glue(stl, MEMSUFFIX)(T0, T1);
 108         T0 = 1;
 109     } else {
 110         T0 = 0;
 111     }
 112     RETURN();
 113 }