Thu Aug 1 17:05:24 1996 Martin M. Hunt <hunt@pizza.cygnus.com>

* ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
	gencode.c, interp.c, simops.c: Created.

sim/d10v/ChangeLog

@@ -0,0 +1,5 @@
+Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
+
+	* ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h, 
+	gencode.c, interp.c, simops.c: Created.
+

sim/d10v/Makefile.in

@@ -0,0 +1,149 @@
+#    Makefile template for Configure for the SH sim library.
+#    Copyright (C) 1990, 1991, 1992, 1995 Free Software Foundation, Inc.
+#    Written by Cygnus Support.
+# 
+# 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.
+
+VPATH = @srcdir@:@srcdir@/../common:@srcdir@/../../gdb/
+srcdir = @srcdir@
+srcroot = $(srcdir)/../..
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+host_alias = @host_alias@
+target_alias = @target_alias@
+program_transform_name = @program_transform_name@
+bindir = @bindir@
+
+libdir = @libdir@
+tooldir = $(libdir)/$(target_alias)
+
+datadir = @datadir@
+mandir = @mandir@
+man1dir = $(mandir)/man1
+man2dir = $(mandir)/man2
+man3dir = $(mandir)/man3
+man4dir = $(mandir)/man4
+man5dir = $(mandir)/man5
+man6dir = $(mandir)/man6
+man7dir = $(mandir)/man7
+man8dir = $(mandir)/man8
+man9dir = $(mandir)/man9
+infodir = @infodir@
+includedir = @includedir@
+
+SHELL = /bin/sh
+
+INSTALL = $(srcroot)/install.sh -c
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_XFORM = $(INSTALL) -t='$(program_transform_name)'
+INSTALL_XFORM1= $(INSTALL_XFORM) -b=.1
+
+AR = @AR@
+AR_FLAGS = rc
+CC = @CC@
+CFLAGS = @CFLAGS@
+MAKEINFO = makeinfo
+RANLIB = @RANLIB@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+
+HDEFINES = @HDEFINES@
+TDEFINES =
+
+.NOEXPORT:
+MAKEOVERRIDES=
+
+X=xstuff.o
+XL=-lX11
+X=
+XL=
+
+INCDIR = $(srcdir)/../../include 
+CSEARCH = -I. -I$(srcdir)  -I../../include  \
+  -I../../bfd -I$(INCDIR) -I$(srcdir)/../../bfd -I$(srcdir)/../../gdb -I$(srcdir)/../../newlib/libc/sys/sh
+DEP = mkdep
+
+all:	run
+
+run:	interp.o $(X) run.o table.o callback.o simops.o
+	$(CC) $(CFLAGS) -o run $(X) interp.o table.o callback.o simops.o run.o ../../bfd/libbfd.a ../../libiberty/libiberty.a $(XL) -lm
+
+interp.o:interp.c table.c
+run.o:run.c 
+
+libsim.a:interp.o table.o simops.o
+	$(AR) $(ARFLAGS) libsim.a interp.o table.o
+	$(RANLIB) libsim.a
+
+simops.h:	gencode
+	./gencode -h >$@
+
+table.c:	gencode simops.h
+	./gencode >$@
+
+gencode:	gencode.c
+	$(CC) $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHE) -o gencode $(srcdir)/gencode.c ../../opcodes/libopcodes.a -lc
+
+.c.o:
+	$(CC) -c -DINSIDE_SIMULATOR $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHES) $<
+
+check:
+
+info:
+clean-info:
+install-info:
+
+tags etags: TAGS
+
+TAGS: force
+	etags $(INCDIR)/*.h $(srcdir)/*.h $(srcdir)/*.c
+
+clean:
+	rm -f *.[oa] *~ core *.E *.p *.ip aout-params.h gen-aout
+	rm -f run libsim.a
+
+distclean mostlyclean maintainer-clean realclean: clean
+	rm -f TAGS
+	rm -f Makefile config.cache config.log config.status
+
+# Dummy target to force execution of dependent targets.
+#
+force:
+
+# Copy the files into directories where they will be run.
+install:
+	$(INSTALL_XFORM) run $(bindir)/run
+
+install-man: run.1
+	$(INSTALL_XFORM1) $(srcdir)/run.1 $(man1dir)/run.1
+
+Makefile: Makefile.in config.status
+	$(SHELL) ./config.status
+
+config.status: configure
+	$(SHELL) ./config.status --recheck
+
+dep: $(CFILES)
+	mkdep $(CFLAGS) $?
+
+# What appears below is generated by a hacked mkdep using gcc -MM.
+
+# DO NOT DELETE THIS LINE -- mkdep uses it.
+# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
+
+
+# IF YOU PUT ANYTHING HERE IT WILL GO AWAY

sim/d10v/configure.in

@@ -0,0 +1,29 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.5)dnl
+AC_INIT(Makefile.in)
+
+AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/../..)
+AC_CANONICAL_SYSTEM
+AC_ARG_PROGRAM
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_C_BIGENDIAN
+
+. ${srcdir}/../../bfd/configure.host
+
+AC_SUBST(CFLAGS)
+AC_SUBST(HDEFINES)
+AR=${AR-ar}
+AC_SUBST(AR)
+AC_PROG_RANLIB
+
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+AC_C_CROSS
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+AC_SUBST(CC_FOR_BUILD)
+
+AC_OUTPUT(Makefile)

sim/d10v/d10v_sim.h

@@ -0,0 +1,104 @@
+#include <stdio.h>
+#include <ctype.h>
+#include "ansidecl.h"
+#include "opcode/d10v.h"
+
+/* FIXME: host defines */
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned int uint32;
+typedef signed char int8;
+typedef signed short int16;
+typedef signed int int32;
+typedef signed long long int64;
+
+/* FIXME: D10V defines */
+typedef uint16 reg_t;
+
+struct simops 
+{
+  long opcode;
+  long mask;
+  int format;
+  int cycles;
+  int unit;
+  int exec_type;
+  void (*func)();
+  int numops;
+  int operands[9];
+};
+
+struct _state
+{
+  reg_t regs[16];		/* general-purpose registers */
+  reg_t cregs[15];	/* control registers */
+  int64 a[2];	/* accumulators */
+  uint8 SM;
+  uint8 EA;
+  uint8 DB;
+  uint8 IE;
+  uint8 RP;
+  uint8 MD;
+  uint8 FX;
+  uint8 ST;
+  uint8 F0;
+  uint8 F1;
+  uint8 C;
+  uint8 exe;
+  uint8 *imem;
+  uint8 *dmem;
+} State;
+
+extern uint16 OP[4];
+extern struct simops Simops[];
+
+#define PC	(State.cregs[2])
+#define PSW	(State.cregs[0])
+#define BPSW	(State.cregs[1])
+#define BPC	(State.cregs[3])
+#define RPT_C	(State.cregs[7])
+#define RPT_S	(State.cregs[8])
+#define RPT_E	(State.cregs[9])
+#define MOD_S	(State.cregs[10])
+#define MOD_E	(State.cregs[11])
+#define IBA	(State.cregs[14])
+
+#define SEXT3(x)	((((x)&0x7)^(~3))+4)	
+
+/* sign-extend a 4-bit number */
+#define SEXT4(x)	((((x)&0xf)^(~7))+8)	
+
+/* sign-extend an 8-bit number */
+#define SEXT8(x)	((((x)&0xff)^(~0x7f))+0x80)
+
+/* sign-extend a 16-bit number */
+#define SEXT16(x)	((((x)&0xffff)^(~0x7fff))+0x8000)
+
+#define BIT40	0x8000000000LL
+#define BIT44	0x80000000000LL
+#define MAX32	0x7fffffffLL
+#define MIN32	0xff80000000LL
+#define MASK32	0xffffffffLL
+#define MASK40	0xffffffffffLL
+#define MASK44	0xfffffffffffLL
+
+
+#define	RB(x)	(*((uint8 *)((x)+State.imem)))
+
+#ifdef WORDS_BIGENDIAN
+
+#define RW(x)	(*((uint16 *)((x)+State.imem)))
+#define RLW(x)	(*((uint32 *)((x)+State.imem)))
+#define SW(addr,data)	RW(addr)=data
+
+#else
+
+uint32 get_longword_swap PARAMS ((uint16 x));
+uint16 get_word_swap PARAMS ((uint16 x));
+void write_word_swap PARAMS ((uint16 addr, uint16 data));
+
+#define SW(addr,data)	write_word_swap(addr,data)
+#define RW(x)	get_word_swap(x)
+#define RLW(x)	get_longword_swap(x)
+
+#endif /* not WORDS_BIGENDIAN */

sim/d10v/interp.c

@@ -0,0 +1,345 @@
+#include "sysdep.h"
+#include "bfd.h"
+#include "remote-sim.h"
+#include "callback.h"
+
+#include "d10v_sim.h"
+
+#define IMEM_SIZE 18	/* D10V instruction memory size is 18 bits */
+#define DMEM_SIZE 16	/* Data memory */
+
+uint16 OP[4];
+
+static struct hash_entry *lookup_hash PARAMS ((uint32 ins, int size));
+
+#define MAX_HASH  63
+struct hash_entry
+{
+  struct hash_entry *next;
+  long opcode;
+  long mask;
+  struct simops *ops;
+};
+
+struct hash_entry hash_table[MAX_HASH+1];
+
+static long 
+hash(insn, format)
+     long insn;
+     int format;
+{
+  if (format & LONG_OPCODE)
+    return ((insn & 0x3F000000) >> 24);
+  else
+    return((insn & 0x7E00) >> 9);
+}
+
+static struct hash_entry *
+lookup_hash (ins, size)
+     uint32 ins;
+     int size;
+{
+  struct hash_entry *h;
+
+  if (size)
+    h = &hash_table[(ins & 0x3F000000) >> 24];
+  else
+    h = &hash_table[(ins & 0x7E00) >> 9];
+
+  while ( (ins & h->mask) != h->opcode)
+    {
+      if (h->next == NULL)
+	{
+	  printf ("ERROR looking up hash for %x\n",ins);
+	  exit(1);
+	}
+      h = h->next;
+    }
+  return (h);
+}
+
+uint32
+get_longword_swap (x)
+      uint16 x;
+{
+  uint8 *a = (uint8 *)(x + State.imem);
+  return (a[0]<<24) + (a[1]<<16) + (a[2]<<8) + (a[3]);
+}
+
+uint16
+get_word_swap (x)
+      uint16 x;
+{
+  uint8 *a = (uint8 *)(x + State.imem);
+  return (a[0]<<8) + a[1];
+}
+
+void
+write_word_swap (addr, data)
+     uint16 addr, data;
+{
+  uint8 *a = (uint8 *)(addr + State.imem);
+  a[0] = data >> 8;
+  a[1] = data & 0xff;
+}
+
+
+static void
+get_operands (struct simops *s, uint32 ins)
+{
+  int i, shift, bits, flags;
+  uint32 mask;
+  for (i=0; i < s->numops; i++)
+    {
+      shift = s->operands[3*i];
+      bits = s->operands[3*i+1];
+      flags = s->operands[3*i+2];
+      mask = 0x7FFFFFFF >> (31 - bits);
+      OP[i] = (ins >> shift) & mask;
+    }
+}
+
+static void
+do_long (ins)
+     uint32 ins;
+{
+  struct hash_entry *h;
+  /*  printf ("do_long %x\n",ins); */
+  h = lookup_hash (ins, 1);
+  get_operands (h->ops, ins);
+  (h->ops->func)();
+}
+static void
+do_2_short (ins1, ins2)
+     uint16 ins1, ins2;
+{
+  struct hash_entry *h;
+  /*  printf ("do_2_short %x -> %x\n",ins1,ins2); */
+  h = lookup_hash (ins1, 0);
+  get_operands (h->ops, ins1);
+  (h->ops->func)();
+  h = lookup_hash (ins2, 0);
+  get_operands (h->ops, ins2);
+  (h->ops->func)();
+}
+static void
+do_parallel (ins1, ins2)
+     uint16 ins1, ins2;
+{
+  struct hash_entry *h1, *h2;
+  /*  printf ("do_parallel %x || %x\n",ins1,ins2); */
+  h1 = lookup_hash (ins1, 0);
+  get_operands (h1->ops, ins1);
+  h2 = lookup_hash (ins2, 0);
+  get_operands (h2->ops, ins2);
+  if (h1->ops->exec_type == PARONLY)
+    {
+      (h1->ops->func)();
+      if (State.exe)
+	(h2->ops->func)();
+    }
+  else if (h2->ops->exec_type == PARONLY)
+    {
+      (h2->ops->func)();
+      if (State.exe)
+	(h1->ops->func)();
+    }
+  else
+    {
+      (h1->ops->func)();
+      (h2->ops->func)();
+    }
+}
+ 
+
+void
+sim_size (power)
+     int power;
+
+{
+  if (State.imem)
+    {
+      free (State.imem);
+      free (State.dmem);
+    }
+
+  State.imem = (uint8 *)calloc(1,1<<IMEM_SIZE);
+  State.dmem = (uint8 *)calloc(1,1<<DMEM_SIZE);
+  if (!State.imem || !State.dmem )
+    {
+      fprintf (stderr,"Memory allocation failed.\n");
+      exit(1);
+    }
+  printf ("Allocated %d bytes instruction memory and\n",1<<IMEM_SIZE);
+  printf ("          %d bytes data memory.\n",1<<DMEM_SIZE);
+}
+
+static void
+init_system ()
+{
+  if (!State.imem)
+    sim_size(1);
+}
+
+int
+sim_write (addr, buffer, size)
+     SIM_ADDR addr;
+     unsigned char *buffer;
+     int size;
+{
+  int i;
+  init_system ();
+
+  printf ("sim_write %d bytes to 0x%x\n",size,addr);
+  for (i = 0; i < size; i++)
+    {
+      State.imem[i+addr] = buffer[i]; 
+    }
+  return size;
+}
+
+void
+sim_open (args)
+     char *args;
+{
+  struct simops *s;
+  struct hash_entry *h, *prev;
+  if (args != NULL)
+      printf ("sim_open %s\n",args);
+
+  /* put all the opcodes in the hash table */
+  for (s = Simops; s->func; s++)
+    {
+      h = &hash_table[hash(s->opcode,s->format)];
+      
+      /* go to the last entry in the chain */
+      while (h->next)
+	  h = h->next;
+
+      if (h->ops)
+	{
+	  h->next = calloc(1,sizeof(struct hash_entry));
+	  h = h->next;
+	}
+      h->ops = s;
+      h->mask = s->mask;
+      h->opcode = s->opcode;
+    }
+}
+
+
+void
+sim_close (quitting)
+     int quitting;
+{
+  /* nothing to do */
+}
+
+void
+sim_set_profile (n)
+     int n;
+{
+  printf ("sim_set_profile %d\n",n);
+}
+
+void
+sim_set_profile_size (n)
+     int n;
+{
+  printf ("sim_set_profile_size %d\n",n);
+}
+
+void
+sim_resume (step, siggnal)
+     int step, siggnal;
+{
+  uint32 inst;
+  int i;
+  reg_t oldpc;
+
+  printf ("sim_resume %d %d\n",step,siggnal);
+
+  while (1)
+    {
+      inst = RLW (PC << 2);
+      oldpc = PC;
+      switch (inst & 0xC0000000)
+	{
+	case 0xC0000000:
+	  /* long instruction */
+	  do_long (inst & 0x3FFFFFFF);
+	  break;
+	case 0x80000000:
+	  /* R -> L */
+	  do_2_short ( inst & 0x7FFF, (inst & 0x3FFF8000) >> 15);
+	  break;
+	case 0x40000000:
+	  /* L -> R */
+	  do_2_short ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF);
+	  break;
+	case 0:
+          do_parallel ((inst & 0x3FFF8000) >> 15, inst & 0x7FFF);
+          break;
+        }
+
+      if (State.RP && PC == RPT_E)
+	{
+	  RPT_C -= 1;
+	  if (RPT_C == 0)
+	    State.RP = 0;
+	  else
+	    PC = RPT_S;
+	}
+
+      /* FIXME */
+      if (PC == oldpc)
+	PC++;
+    }
+}
+
+int
+sim_trace ()
+{
+  printf ("sim_trace\n");
+  return 0;
+}
+
+void
+sim_info (verbose)
+     int verbose;
+{
+  printf ("sim_verbose\n");
+}
+
+void
+sim_create_inferior (start_address, argv, env)
+     SIM_ADDR start_address;
+     char **argv;
+     char **env;
+{
+  printf ("sim_create_inferior:  PC=0x%x\n",start_address);
+  PC = start_address >> 2;
+}
+
+
+void
+sim_kill ()
+{
+  /* nothing to do */
+}
+
+void
+sim_set_callbacks(p)
+     host_callback *p;
+{
+  printf ("sim_set_callbacks\n");
+  /* callback = p; */
+}
+
+void
+sim_stop_reason (reason, sigrc)
+     enum sim_stop *reason;
+     int *sigrc;
+{
+  printf ("sim_stop_reason\n");
+}