| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright (C) 1998, Andrew Cagney <cagney@highland.com.au> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | #include "sim-main.h" |
| 22 | #include "m16_idecode.h" |
| 23 | #include "m32_idecode.h" |
| 24 | #include "bfd.h" |
| 25 | |
| 26 | |
| 27 | #define SD sd |
| 28 | #define CPU cpu |
| 29 | |
| 30 | void |
| 31 | sim_engine_run (SIM_DESC sd, |
| 32 | int next_cpu_nr, |
| 33 | int nr_cpus, /* ignore */ |
| 34 | int siggnal) /* ignore */ |
| 35 | { |
| 36 | sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr); |
| 37 | address_word cia = CIA_GET (cpu); |
| 38 | |
| 39 | while (1) |
| 40 | { |
| 41 | address_word nia; |
| 42 | |
| 43 | #if defined (ENGINE_ISSUE_PREFIX_HOOK) |
| 44 | ENGINE_ISSUE_PREFIX_HOOK (); |
| 45 | #endif |
| 46 | |
| 47 | if ((cia & 1)) |
| 48 | { |
| 49 | m16_instruction_word instruction_0 = IMEM16 (cia); |
| 50 | nia = m16_idecode_issue (sd, instruction_0, cia); |
| 51 | } |
| 52 | else |
| 53 | { |
| 54 | m32_instruction_word instruction_0 = IMEM32 (cia); |
| 55 | nia = m32_idecode_issue (sd, instruction_0, cia); |
| 56 | } |
| 57 | |
| 58 | #if defined (ENGINE_ISSUE_POSTFIX_HOOK) |
| 59 | ENGINE_ISSUE_POSTFIX_HOOK (); |
| 60 | #endif |
| 61 | |
| 62 | /* Update the instruction address */ |
| 63 | cia = nia; |
| 64 | |
| 65 | /* process any events */ |
| 66 | if (sim_events_tick (sd)) |
| 67 | { |
| 68 | CIA_SET (CPU, cia); |
| 69 | sim_events_process (sd); |
| 70 | cia = CIA_GET (CPU); |
| 71 | } |
| 72 | |
| 73 | } |
| 74 | } |