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[/] [or1k/] [tags/] [start/] [insight/] [sim/] [tic80/] [interp.c] - Rev 578
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/* This file is part of the GDB simulators. Copyright (C) 1997, Free Software Foundation Condtributed by Cyngnus Solutions. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sim-main.h" #include "idecode.h" #include "itable.h" #ifdef HAVE_STRING_H #include <string.h> #else #ifdef HAVE_STRINGS_H #include <strings.h> #endif #endif #if 0 void engine_error (SIM_DESC sd, sim_cpu *cpu, instruction_address cia, const char *fmt, ...) { va_list ap; va_start (ap, fmt); sim_io_evprintf (sd, fmt, ap); va_end (ap); sim_halt (sd, cpu, NULL, cia, sim_stopped, SIGABRT); } void engine_halt (SIM_DESC sd, sim_cpu *cpu, instruction_address cia, enum sim_stop reason, int siggnal) { if (!sd->halt_ok) sim_io_error (sd, "engine_halt - bad longjmp"); sd->reason = reason; sd->siggnal = siggnal; sd->halt_ok = 0; sd->restart_ok = 0; if (cpu != NULL) cpu->cia = cia; longjmp (sd->path_to_halt, 1); } void engine_restart (SIM_DESC sd, sim_cpu *cpu, instruction_address cia) { if (!sd->restart_ok) sim_io_error (sd, "engine_restart - bad longjmp"); sd->restart_ok = 0; cpu->cia = cia; longjmp(sd->path_to_restart, 1); } void engine_run_until_stop (SIM_DESC sd, volatile int *keep_running) { if (!setjmp (sd->path_to_halt)) { instruction_address cia; sim_cpu *cpu = STATE_CPU (sd, 0); sd->halt_ok = 1; setjmp (sd->path_to_restart); sd->restart_ok = 1; cia = cpu->cia; do { instruction_word insn = IMEM (cia); cia = idecode_issue (sd, insn, cia); } while (*keep_running); engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGINT); } } void engine_step (SIM_DESC sd) { if (!setjmp (sd->path_to_halt)) { instruction_address cia; instruction_word insn; sim_cpu *cpu = STATE_CPU (sd, 0); sd->halt_ok = 1; setjmp (sd->path_to_restart); sd->restart_ok = 1; cia = cpu->cia; insn = IMEM (cia); cia = idecode_issue (sd, insn, cia); engine_halt (sd, cpu, cia, sim_stopped, SIM_SIGTRAP); } } #endif
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