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 3 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, see <http://www.gnu.org/licenses/>. 17 18 */ 19 20 /* This must come before any other includes. */ 21 #include "defs.h" 22 23 #include "sim-main.h" 24 #include "m16_idecode.h" 25 #include "m32_idecode.h" 26 #include "bfd.h" 27 #include "sim-engine.h" 28 29 30 #define SD sd 31 #define CPU cpu 32 33 void 34 sim_engine_run (SIM_DESC sd, 35 int next_cpu_nr, 36 int nr_cpus, /* ignore */ 37 int siggnal) /* ignore */ 38 { 39 sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr); 40 address_word cia = CPU_PC_GET (cpu); 41 42 while (1) 43 { 44 address_word nia; 45 46 #if defined (ENGINE_ISSUE_PREFIX_HOOK) 47 ENGINE_ISSUE_PREFIX_HOOK (); 48 #endif 49 50 if ((cia & 1)) 51 { 52 m16_instruction_word instruction_0 = IMEM16 (cia); 53 nia = m16_idecode_issue (sd, instruction_0, cia); 54 } 55 else 56 { 57 m32_instruction_word instruction_0 = IMEM32 (cia); 58 nia = m32_idecode_issue (sd, instruction_0, cia); 59 } 60 61 #if defined (ENGINE_ISSUE_POSTFIX_HOOK) 62 ENGINE_ISSUE_POSTFIX_HOOK (); 63 #endif 64 65 /* Update the instruction address */ 66 cia = nia; 67 68 /* process any events */ 69 if (sim_events_tick (sd)) 70 { 71 CPU_PC_SET (CPU, cia); 72 sim_events_process (sd); 73 cia = CPU_PC_GET (CPU); 74 } 75 76 } 77 } 78