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5de0c648 SG |
1 | /* Remote debugging interface for CPU32Bug Rom monitor for GDB, the GNU debugger. |
2 | Copyright 1995 Free Software Foundation, Inc. | |
3 | ||
4 | Written by Stu Grossman of Cygnus Support | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
6c9638b4 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
5de0c648 SG |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcore.h" | |
24 | #include "target.h" | |
25 | #include "monitor.h" | |
26 | #include "serial.h" | |
27 | ||
28 | static void cpu32bug_open PARAMS ((char *args, int from_tty)); | |
29 | ||
30 | static void | |
31 | cpu32bug_supply_register (regname, regnamelen, val, vallen) | |
32 | char *regname; | |
33 | int regnamelen; | |
34 | char *val; | |
35 | int vallen; | |
36 | { | |
37 | int regno; | |
38 | ||
39 | if (regnamelen != 2) | |
40 | return; | |
41 | ||
42 | switch (regname[0]) | |
43 | { | |
44 | case 'S': | |
45 | if (regname[1] != 'R') | |
46 | return; | |
47 | regno = PS_REGNUM; | |
48 | break; | |
49 | case 'P': | |
50 | if (regname[1] != 'C') | |
51 | return; | |
52 | regno = PC_REGNUM; | |
53 | break; | |
54 | case 'D': | |
55 | if (regname[1] < '0' || regname[1] > '7') | |
56 | return; | |
57 | regno = regname[1] - '0' + D0_REGNUM; | |
58 | break; | |
59 | case 'A': | |
60 | if (regname[1] < '0' || regname[1] > '7') | |
61 | return; | |
62 | regno = regname[1] - '0' + A0_REGNUM; | |
63 | break; | |
64 | default: | |
65 | return; | |
66 | } | |
67 | ||
68 | monitor_supply_register (regno, val); | |
69 | } | |
70 | ||
71 | /* | |
72 | * This array of registers needs to match the indexes used by GDB. The | |
73 | * whole reason this exists is because the various ROM monitors use | |
74 | * different names than GDB does, and don't support all the | |
75 | * registers either. So, typing "info reg sp" becomes an "A7". | |
76 | */ | |
77 | ||
78 | static char *cpu32bug_regnames[NUM_REGS] = | |
79 | { | |
80 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
81 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", | |
82 | "SR", "PC", | |
83 | }; | |
84 | ||
85 | /* | |
86 | * Define the monitor command strings. Since these are passed directly | |
87 | * through to a printf style function, we need can include formatting | |
88 | * strings. We also need a CR or LF on the end. | |
89 | */ | |
90 | ||
91 | static struct target_ops cpu32bug_ops; | |
92 | ||
5de0c648 SG |
93 | static char *cpu32bug_inits[] = {"\r", NULL}; |
94 | ||
adc176bb JM |
95 | static struct monitor_ops cpu32bug_cmds ; |
96 | static void init_cpu32bug_cmds(void) | |
5de0c648 | 97 | { |
adc176bb JM |
98 | cpu32bug_cmds.flags = MO_CLR_BREAK_USES_ADDR; |
99 | cpu32bug_cmds.init = cpu32bug_inits; /* Init strings */ | |
100 | cpu32bug_cmds.cont = "g\r"; /* continue command */ | |
101 | cpu32bug_cmds.step = "t\r"; /* single step */ | |
102 | cpu32bug_cmds.stop = NULL; /* interrupt command */ | |
103 | cpu32bug_cmds.set_break = "br %x\r"; /* set a breakpoint */ | |
104 | cpu32bug_cmds.clr_break = "nobr %x\r"; /* clear a breakpoint */ | |
105 | cpu32bug_cmds.clr_all_break = "nobr\r"; /* clear all breakpoints */ | |
106 | cpu32bug_cmds.fill = "bf %x:%x %x;b\r"; /* fill (start count val) */ | |
107 | cpu32bug_cmds.setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */ | |
108 | cpu32bug_cmds.setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */ | |
109 | cpu32bug_cmds.setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */ | |
110 | cpu32bug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ | |
111 | cpu32bug_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ | |
112 | cpu32bug_cmds.setmem.term = NULL; /* setreg.term */ | |
113 | cpu32bug_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ | |
114 | cpu32bug_cmds.getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */ | |
115 | cpu32bug_cmds.getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */ | |
116 | cpu32bug_cmds.getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */ | |
117 | cpu32bug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ | |
118 | cpu32bug_cmds.getmem.resp_delim = " "; /* getmem.resp_delim */ | |
119 | cpu32bug_cmds.getmem.term = NULL; /* getmem.term */ | |
120 | cpu32bug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ | |
121 | cpu32bug_cmds.setreg.cmd = "rs %s %x\r"; /* setreg.cmd (name, value) */ | |
122 | cpu32bug_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ | |
123 | cpu32bug_cmds.setreg.term = NULL; /* setreg.term */ | |
124 | cpu32bug_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */ | |
125 | cpu32bug_cmds.getreg.cmd = "rs %s\r"; /* getreg.cmd (name) */ | |
126 | cpu32bug_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ | |
127 | cpu32bug_cmds.getreg.term = NULL; /* getreg.term */ | |
128 | cpu32bug_cmds.getreg.term_cmd = NULL ; /* getreg.term_cmd */ | |
129 | cpu32bug_cmds.dump_registers = "rd\r"; /* dump_registers */ | |
130 | cpu32bug_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ | |
131 | cpu32bug_cmds.supply_register = cpu32bug_supply_register; /* supply_register */ | |
132 | cpu32bug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ | |
133 | cpu32bug_cmds.load = "lo\r"; /* download command */ | |
134 | cpu32bug_cmds.loadresp = "\n"; /* load response */ | |
135 | cpu32bug_cmds.prompt = "CPU32Bug>"; /* monitor command prompt */ | |
136 | cpu32bug_cmds.line_term = "\r"; /* end-of-line terminator */ | |
137 | cpu32bug_cmds.cmd_end = NULL; /* optional command terminator */ | |
138 | cpu32bug_cmds.target = &cpu32bug_ops; /* target operations */ | |
139 | cpu32bug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ | |
140 | cpu32bug_cmds.regnames = cpu32bug_regnames; /* registers names */ | |
141 | cpu32bug_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ | |
142 | }; /* init_cpu32bug_cmds */ | |
5de0c648 | 143 | |
dfd7f395 | 144 | static void |
5de0c648 SG |
145 | cpu32bug_open(args, from_tty) |
146 | char *args; | |
147 | int from_tty; | |
148 | { | |
149 | monitor_open (args, &cpu32bug_cmds, from_tty); | |
150 | } | |
151 | ||
152 | void | |
153 | _initialize_cpu32bug_rom () | |
154 | { | |
adc176bb | 155 | init_cpu32bug_cmds() ; |
5de0c648 SG |
156 | init_monitor_ops (&cpu32bug_ops); |
157 | ||
158 | cpu32bug_ops.to_shortname = "cpu32bug"; | |
159 | cpu32bug_ops.to_longname = "CPU32Bug monitor"; | |
160 | cpu32bug_ops.to_doc = "Debug via the CPU32Bug monitor.\n\ | |
161 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
162 | cpu32bug_ops.to_open = cpu32bug_open; | |
163 | ||
164 | add_target (&cpu32bug_ops); | |
165 | } |