134 lines
2.7 KiB
Text
134 lines
2.7 KiB
Text
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# Simulator main loop for m32rx. -*- C -*-
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# Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Simulators.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Syntax:
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# /bin/sh mainloop.in init|support|{full,fast}-{extract,exec}-{scache,noscache}
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# ??? After a few more ports are done, revisit.
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# Will eventually need to machine generate a lot of this.
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case "x$1" in
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xsupport)
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cat <<EOF
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EOF
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;;
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xinit)
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cat <<EOF
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USI insn,insn1,insn2;
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DECODE *decode,*d1,*d2;
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int icount,icount2;
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ARGBUF abufs[MAX_PARALLEL_INSNS];
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SEM_ARG sem_arg;
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EOF
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;;
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xfull-extract-* | xfast-extract-*)
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cat <<EOF
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{
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PCADDR pc = CPU (h_pc);
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if ((pc & 3) != 0)
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{
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insn1 = GETIMEMUHI (current_cpu, pc);
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insn1 &= 0x7fff;
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d1 = m32rx_decode (current_cpu, pc, insn1);
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icount = 1;
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}
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else
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{
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insn1 = GETIMEMUSI (current_cpu, pc);
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if ((SI) insn1 < 0)
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{
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d1 = m32rx_decode (current_cpu, pc, insn1 >> 16);
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icount = 1;
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}
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else
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{
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if (insn & 0x8000)
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{
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insn2 = insn1 & 0x7fff;
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insn1 = insn1 >> 16;
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d1 = m32rx_decode (current_cpu, pc, insn1);
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d2 = m32rx_decode (current_cpu, pc, insn2);
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icount = 2;
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}
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else
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{
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insn1 = insn1 >> 16;
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d1 = m32rx_decode (current_cpu, pc, insn1);
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icount = 1;
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}
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}
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}
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icount2 = icount;
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insn = insn1;
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decode = d1;
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do
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{
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#define DEFINE_SWITCH
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#include "readx.c"
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insn = insn2;
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decode = d2;
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}
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while (--icount2 > 0);
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}
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EOF
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;;
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xfull-exec-* | xfast-exec-*)
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cat <<EOF
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{
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decode = d1;
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do
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{
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PCADDR new_pc;
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TRACE_INSN_INIT (current_cpu);
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TRACE_INSN (current_cpu, sc->argbuf.opcode, (const struct argbuf *) &sc->argbuf, sc->argbuf.addr);
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new_pc = (*decode->semantic) (current_cpu, &sc->argbuf);
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TRACE_INSN_FINI (current_cpu);
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PROFILE_COUNT_INSN (current_cpu, pc, CGEN_INSN_INDEX (sc->argbuf.opcode));
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CPU (h_pc) = new_pc;
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decode = d2;
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}
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while (--icount > 0);
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}
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EOF
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;;
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*)
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echo "Invalid argument to mainloop.in: $1" >&2
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exit 1
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;;
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esac
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