qemu/target-alpha/op_mem.h

   1 /*
   2  *  Alpha emulation cpu micro-operations for memory accesses for qemu.
   3  *
   4  *  Copyright (c) 2007 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 //#define DEBUG_MEM_ACCESSES
  22 #if defined (DEBUG_MEM_ACCESSES)
  23 void helper_print_mem_EA (target_ulong EA);
  24 #define print_mem_EA(EA) do { helper_print_mem_EA(EA); } while (0)
  25 #else
  26 #define print_mem_EA(EA) do { } while (0)
  27 #endif
  28
  29 static always_inline uint32_t glue(ldl_l, MEMSUFFIX) (target_ulong EA)
  30 {
  31     env->lock = EA;
  32
  33     return glue(ldl, MEMSUFFIX)(EA);
  34 }
  35
  36 static always_inline uint32_t glue(ldq_l, MEMSUFFIX) (target_ulong EA)
  37 {
  38     env->lock = EA;
  39
  40     return glue(ldq, MEMSUFFIX)(EA);
  41 }
  42
  43 static always_inline void glue(stl_c, MEMSUFFIX) (target_ulong EA,
  44                                                   uint32_t data)
  45 {
  46     if (EA == env->lock) {
  47         glue(stl, MEMSUFFIX)(EA, data);
  48         T0 = 0;
  49     } else {
  50         T0 = 1;
  51     }
  52     env->lock = -1;
  53 }
  54
  55 static always_inline void glue(stq_c, MEMSUFFIX) (target_ulong EA,
  56                                                   uint64_t data)
  57 {
  58     if (EA == env->lock) {
  59         glue(stq, MEMSUFFIX)(EA, data);
  60         T0 = 0;
  61     } else {
  62         T0 = 1;
  63     }
  64     env->lock = -1;
  65 }
  66
  67 #define ALPHA_LD_OP(name, op)                                                 \
  68 void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \
  69 {                                                                             \
  70     print_mem_EA(T0);                                                         \
  71     T1 = glue(op, MEMSUFFIX)(T0);                                             \
  72     RETURN();                                                                 \
  73 }
  74
  75 #define ALPHA_ST_OP(name, op)                                                 \
  76 void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \
  77 {                                                                             \
  78     print_mem_EA(T0);                                                         \
  79     glue(op, MEMSUFFIX)(T0, T1);                                              \
  80     RETURN();                                                                 \
  81 }
  82
  83 ALPHA_LD_OP(bu, ldub);
  84 ALPHA_ST_OP(b, stb);
  85 ALPHA_LD_OP(wu, lduw);
  86 ALPHA_ST_OP(w, stw);
  87 ALPHA_LD_OP(l, ldl);
  88 ALPHA_ST_OP(l, stl);
  89 ALPHA_LD_OP(q, ldq);
  90 ALPHA_ST_OP(q, stq);
  91
  92 ALPHA_LD_OP(q_u, ldq);
  93 ALPHA_ST_OP(q_u, stq);
  94
  95 ALPHA_LD_OP(l_l, ldl_l);
  96 ALPHA_LD_OP(q_l, ldq_l);
  97 ALPHA_ST_OP(l_c, stl_c);
  98 ALPHA_ST_OP(q_c, stq_c);
  99
 100 #define ALPHA_LDF_OP(name, op)                                                \
 101 void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \
 102 {                                                                             \
 103     print_mem_EA(T0);                                                         \
 104     FT1 = glue(op, MEMSUFFIX)(T0);                                            \
 105     RETURN();                                                                 \
 106 }
 107
 108 #define ALPHA_STF_OP(name, op)                                                \
 109 void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \
 110 {                                                                             \
 111     print_mem_EA(T0);                                                         \
 112     glue(op, MEMSUFFIX)(T0, FT1);                                             \
 113     RETURN();                                                                 \
 114 }
 115
 116 ALPHA_LDF_OP(t, ldfq);
 117 ALPHA_STF_OP(t, stfq);
 118 ALPHA_LDF_OP(s, ldfl);
 119 ALPHA_STF_OP(s, stfl);
 120
 121 /* VAX floating point */
 122 ALPHA_LDF_OP(f, helper_ldff);
 123 ALPHA_STF_OP(f, helper_stff);
 124 ALPHA_LDF_OP(g, helper_ldfg);
 125 ALPHA_STF_OP(g, helper_stfg);
 126
 127 #undef MEMSUFFIX