target/rx: CPU definitions
[qemu.git] / target / rx / gdbstub.c
1 /*
2 * RX gdb server stub
3 *
4 * Copyright (c) 2019 Yoshinori Sato
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2 or later, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #include "qemu/osdep.h"
19 #include "qemu-common.h"
20 #include "cpu.h"
21 #include "exec/gdbstub.h"
22
23 int rx_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
24 {
25 RXCPU *cpu = RXCPU(cs);
26 CPURXState *env = &cpu->env;
27
28 switch (n) {
29 case 0 ... 15:
30 return gdb_get_regl(mem_buf, env->regs[n]);
31 case 16:
32 return gdb_get_regl(mem_buf, (env->psw_u) ? env->regs[0] : env->usp);
33 case 17:
34 return gdb_get_regl(mem_buf, (!env->psw_u) ? env->regs[0] : env->isp);
35 case 18:
36 return gdb_get_regl(mem_buf, rx_cpu_pack_psw(env));
37 case 19:
38 return gdb_get_regl(mem_buf, env->pc);
39 case 20:
40 return gdb_get_regl(mem_buf, env->intb);
41 case 21:
42 return gdb_get_regl(mem_buf, env->bpsw);
43 case 22:
44 return gdb_get_regl(mem_buf, env->bpc);
45 case 23:
46 return gdb_get_regl(mem_buf, env->fintv);
47 case 24:
48 return gdb_get_regl(mem_buf, env->fpsw);
49 case 25:
50 return 0;
51 }
52 return 0;
53 }
54
55 int rx_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
56 {
57 RXCPU *cpu = RXCPU(cs);
58 CPURXState *env = &cpu->env;
59 uint32_t psw;
60 switch (n) {
61 case 0 ... 15:
62 env->regs[n] = ldl_p(mem_buf);
63 if (n == 0) {
64 if (env->psw_u) {
65 env->usp = env->regs[0];
66 } else {
67 env->isp = env->regs[0];
68 }
69 }
70 break;
71 case 16:
72 env->usp = ldl_p(mem_buf);
73 if (env->psw_u) {
74 env->regs[0] = ldl_p(mem_buf);
75 }
76 break;
77 case 17:
78 env->isp = ldl_p(mem_buf);
79 if (!env->psw_u) {
80 env->regs[0] = ldl_p(mem_buf);
81 }
82 break;
83 case 18:
84 psw = ldl_p(mem_buf);
85 rx_cpu_unpack_psw(env, psw, 1);
86 break;
87 case 19:
88 env->pc = ldl_p(mem_buf);
89 break;
90 case 20:
91 env->intb = ldl_p(mem_buf);
92 break;
93 case 21:
94 env->bpsw = ldl_p(mem_buf);
95 break;
96 case 22:
97 env->bpc = ldl_p(mem_buf);
98 break;
99 case 23:
100 env->fintv = ldl_p(mem_buf);
101 break;
102 case 24:
103 env->fpsw = ldl_p(mem_buf);
104 break;
105 case 25:
106 return 8;
107 default:
108 return 0;
109 }
110
111 return 4;
112 }