Thumb prefetch abort fix.
[qemu/mini2440.git] / target-mips / op_mem.c
blob7fcfc24a6f5257be433d519f4e31ab1d4c518bc7
1 /*
2 * MIPS emulation memory micro-operations for qemu.
3 *
4 * Copyright (c) 2004-2005 Jocelyn Mayer
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.
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.
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
21 /* Standard loads and stores */
22 void glue(op_lb, MEMSUFFIX) (void)
24 T0 = glue(ldsb, MEMSUFFIX)(T0);
25 RETURN();
28 void glue(op_lbu, MEMSUFFIX) (void)
30 T0 = glue(ldub, MEMSUFFIX)(T0);
31 RETURN();
34 void glue(op_sb, MEMSUFFIX) (void)
36 glue(stb, MEMSUFFIX)(T0, T1);
37 RETURN();
40 void glue(op_lh, MEMSUFFIX) (void)
42 T0 = glue(ldsw, MEMSUFFIX)(T0);
43 RETURN();
46 void glue(op_lhu, MEMSUFFIX) (void)
48 T0 = glue(lduw, MEMSUFFIX)(T0);
49 RETURN();
52 void glue(op_sh, MEMSUFFIX) (void)
54 glue(stw, MEMSUFFIX)(T0, T1);
55 RETURN();
58 void glue(op_lw, MEMSUFFIX) (void)
60 T0 = glue(ldl, MEMSUFFIX)(T0);
61 RETURN();
64 void glue(op_sw, MEMSUFFIX) (void)
66 glue(stl, MEMSUFFIX)(T0, T1);
67 RETURN();
70 /* "half" load and stores. We must do the memory access inline,
71 or fault handling won't work. */
72 void glue(op_lwl, MEMSUFFIX) (void)
74 uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
75 CALL_FROM_TB1(glue(do_lwl, MEMSUFFIX), tmp);
76 RETURN();
79 void glue(op_lwr, MEMSUFFIX) (void)
81 uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
82 CALL_FROM_TB1(glue(do_lwr, MEMSUFFIX), tmp);
83 RETURN();
86 void glue(op_swl, MEMSUFFIX) (void)
88 uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
89 tmp = CALL_FROM_TB1(glue(do_swl, MEMSUFFIX), tmp);
90 glue(stl, MEMSUFFIX)(T0 & ~3, tmp);
91 RETURN();
94 void glue(op_swr, MEMSUFFIX) (void)
96 uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
97 tmp = CALL_FROM_TB1(glue(do_swr, MEMSUFFIX), tmp);
98 glue(stl, MEMSUFFIX)(T0 & ~3, tmp);
99 RETURN();
102 void glue(op_ll, MEMSUFFIX) (void)
104 T1 = T0;
105 T0 = glue(ldl, MEMSUFFIX)(T0);
106 env->CP0_LLAddr = T1;
107 RETURN();
110 void glue(op_sc, MEMSUFFIX) (void)
112 CALL_FROM_TB0(dump_sc);
113 if (T0 == env->CP0_LLAddr) {
114 glue(stl, MEMSUFFIX)(T0, T1);
115 T0 = 1;
116 } else {
117 T0 = 0;
119 RETURN();