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Commit | Line | Data |
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c88de14c AF |
1 | /* |
2 | * m68k gdb server stub | |
3 | * | |
4 | * Copyright (c) 2003-2005 Fabrice Bellard | |
5 | * Copyright (c) 2013 SUSE LINUX Products GmbH | |
6 | * | |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This library 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 GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
d8416665 | 20 | #include "qemu/osdep.h" |
5b50e790 | 21 | #include "qemu-common.h" |
33c11879 | 22 | #include "cpu.h" |
5b50e790 | 23 | #include "exec/gdbstub.h" |
c88de14c | 24 | |
5b50e790 | 25 | int m68k_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) |
c88de14c | 26 | { |
5b50e790 AF |
27 | M68kCPU *cpu = M68K_CPU(cs); |
28 | CPUM68KState *env = &cpu->env; | |
29 | ||
c88de14c AF |
30 | if (n < 8) { |
31 | /* D0-D7 */ | |
986a2998 | 32 | return gdb_get_reg32(mem_buf, env->dregs[n]); |
c88de14c AF |
33 | } else if (n < 16) { |
34 | /* A0-A7 */ | |
986a2998 | 35 | return gdb_get_reg32(mem_buf, env->aregs[n - 8]); |
c88de14c AF |
36 | } else { |
37 | switch (n) { | |
38 | case 16: | |
986a2998 | 39 | return gdb_get_reg32(mem_buf, env->sr); |
c88de14c | 40 | case 17: |
986a2998 | 41 | return gdb_get_reg32(mem_buf, env->pc); |
c88de14c AF |
42 | } |
43 | } | |
44 | /* FP registers not included here because they vary between | |
45 | ColdFire and m68k. Use XML bits for these. */ | |
46 | return 0; | |
47 | } | |
48 | ||
5b50e790 | 49 | int m68k_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
c88de14c | 50 | { |
5b50e790 AF |
51 | M68kCPU *cpu = M68K_CPU(cs); |
52 | CPUM68KState *env = &cpu->env; | |
c88de14c AF |
53 | uint32_t tmp; |
54 | ||
55 | tmp = ldl_p(mem_buf); | |
56 | ||
57 | if (n < 8) { | |
58 | /* D0-D7 */ | |
59 | env->dregs[n] = tmp; | |
60 | } else if (n < 16) { | |
61 | /* A0-A7 */ | |
62 | env->aregs[n - 8] = tmp; | |
63 | } else { | |
64 | switch (n) { | |
65 | case 16: | |
66 | env->sr = tmp; | |
67 | break; | |
68 | case 17: | |
69 | env->pc = tmp; | |
70 | break; | |
71 | default: | |
72 | return 0; | |
73 | } | |
74 | } | |
75 | return 4; | |
76 | } |