projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 6c29acca AC |
1 | /* This file is part of the GDB simulators. |
| 2 | ||
| 3 | Copyright (C) 1997, Free Software Foundation | |
| 4 | Condtributed by Cyngnus Solutions. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program 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 | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; if not, write to the Free Software | |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 19 | ||
| 20 | */ | |
| 21 | ||
| 22 | ||
| 23 | ||
| 24 | #include "sim-main.h" | |
| 25 | ||
| 26 | #include "idecode.h" | |
| 27 | #include "itable.h" | |
| 28 | ||
| 29 | #ifdef HAVE_STRING_H | |
| 30 | #include <string.h> | |
| 31 | #else | |
| 32 | #ifdef HAVE_STRINGS_H | |
| 33 | #include <strings.h> | |
| 34 | #endif | |
| 35 | #endif | |
| 36 | ||
| 37 | ||
| 38 | #if 0 | |
| 39 | ||
| 40 | void | |
| 41 | engine_error (SIM_DESC sd, | |
| 42 | sim_cpu *cpu, | |
| 43 | instruction_address cia, | |
| 44 | const char *fmt, | |
| 45 | ...) | |
| 46 | { | |
| 47 | va_list ap; | |
| 48 | va_start (ap, fmt); | |
| 49 | sim_io_evprintf (sd, fmt, ap); | |
| 50 | va_end (ap); | |
| 51 | ||
| 52 | sim_halt (sd, cpu, NULL, cia, sim_stopped, SIGABRT); | |
| 53 | } | |
| 54 | ||
| 55 | void | |
| 56 | engine_halt (SIM_DESC sd, | |
| 57 | sim_cpu *cpu, | |
| 58 | instruction_address cia, | |
| 59 | enum sim_stop reason, | |
| 60 | int siggnal) | |
| 61 | { | |
| 62 | if (!sd->halt_ok) | |
| 63 | sim_io_error (sd, "engine_halt - bad longjmp"); | |
| 64 | sd->reason = reason; | |
| 65 | sd->siggnal = siggnal; | |
| 66 | sd->halt_ok = 0; | |
| 67 | sd->restart_ok = 0; | |
| 68 | if (cpu != NULL) | |
| 69 | cpu->cia = cia; | |
| 70 | longjmp (sd->path_to_halt, 1); | |
| 71 | } | |
| 72 | ||
| 73 | void | |
| 74 | engine_restart (SIM_DESC sd, | |
| 75 | sim_cpu *cpu, | |
| 76 | instruction_address cia) | |
| 77 | { | |
| 78 | if (!sd->restart_ok) | |
| 79 | sim_io_error (sd, "engine_restart - bad longjmp"); | |
| 80 | sd->restart_ok = 0; | |
| 81 | cpu->cia = cia; | |
| 82 | longjmp(sd->path_to_restart, 1); | |
| 83 | } | |
| 84 | ||
| 85 | ||
| 86 | void | |
| 87 | engine_run_until_stop (SIM_DESC sd, | |
| 88 | volatile int *keep_running) | |
| 89 | { | |
| 90 | if (!setjmp (sd->path_to_halt)) | |
| 91 | { | |
| 92 | instruction_address cia; | |
| 93 | sim_cpu *cpu = STATE_CPU (sd, 0); | |
| 94 | sd->halt_ok = 1; | |
| 95 | setjmp (sd->path_to_restart); | |
| 96 | sd->restart_ok = 1; | |
| 97 | cia = cpu->cia; | |
| 98 | do | |
| 99 | { | |
| 100 | instruction_word insn = IMEM (cia); | |
| 101 | cia = idecode_issue (sd, insn, cia); | |
| 102 | } | |
| 103 | while (*keep_running); | |
| 104 | engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGINT); | |
| 105 | } | |
| 106 | } | |
| 107 | ||
| 108 | ||
| 109 | void | |
| 110 | engine_step (SIM_DESC sd) | |
| 111 | { | |
| 112 | if (!setjmp (sd->path_to_halt)) | |
| 113 | { | |
| 114 | instruction_address cia; | |
| 115 | instruction_word insn; | |
| 116 | sim_cpu *cpu = STATE_CPU (sd, 0); | |
| 117 | sd->halt_ok = 1; | |
| 118 | setjmp (sd->path_to_restart); | |
| 119 | sd->restart_ok = 1; | |
| 120 | cia = cpu->cia; | |
| 121 | insn = IMEM (cia); | |
| 122 | cia = idecode_issue (sd, insn, cia); | |
| 123 | engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGTRAP); | |
| 124 | } | |
| 125 | } | |
| 126 | ||
| 127 | #endif |