From c0a4c3ba170e91bf93d16e0a6340980f6d62901a Mon Sep 17 00:00:00 2001 From: Andrew Cagney Date: Tue, 14 Apr 1998 14:34:48 +0000 Subject: Implement 32 bit MIPS16 instructions listed in m16.igen. --- sim/mips/m16run.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 sim/mips/m16run.c (limited to 'sim/mips/m16run.c') diff --git a/sim/mips/m16run.c b/sim/mips/m16run.c new file mode 100644 index 0000000..da3691c --- /dev/null +++ b/sim/mips/m16run.c @@ -0,0 +1,73 @@ +/* This file is part of the program psim. + + Copyright (C) 1998, Andrew Cagney + + 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 "m16_idecode.h" +#include "m32_idecode.h" +#include "bfd.h" + + +#define SD sd +#define CPU cpu + +void +sim_engine_run (SIM_DESC sd, + int next_cpu_nr, + int nr_cpus, /* ignore */ + int siggnal) /* ignore */ +{ + sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr); + address_word cia = CIA_GET (cpu); + + while (1) + { + address_word nia; + +#if defined (ENGINE_ISSUE_PREFIX_HOOK) + ENGINE_ISSUE_PREFIX_HOOK (); +#endif + + if ((cia & 1)) + { + m16_instruction_word instruction_0 = IMEM16 (cia); + nia = m16_idecode_issue (sd, instruction_0, cia); + } + else + { + m32_instruction_word instruction_0 = IMEM32 (cia); + nia = m32_idecode_issue (sd, instruction_0, cia); + } + +#if defined (ENGINE_ISSUE_POSTFIX_HOOK) + ENGINE_ISSUE_POSTFIX_HOOK (); +#endif + + /* Update the instruction address */ + cia = nia; + + /* process any events */ + if (sim_events_tick (sd)) + { + CIA_SET (CPU, cia); + sim_events_process (sd); + } + + } +} -- cgit v1.1