1 files changed, 0 insertions, 780 deletions
diff --git a/sim/m32c/srcdest.c b/sim/m32c/srcdest.c
deleted file mode 100644
index 5e7beed..0000000
--- a/sim/m32c/srcdest.c
+++ /dev/null
@@ -1,780 +0,0 @@
-/* srcdest.c --- decoding M32C addressing modes.
-
-Copyright (C) 2005 Free Software Foundation, Inc.
-Contributed by Red Hat, Inc.
-
-This file is part of the GNU simulators.
-
-The GNU simulators are free software; you can redistribute them and/or
-modify them 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.
-
-The GNU simulators are distributed in the hope that they 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 the GNU simulators; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA  */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "cpu.h"
-#include "mem.h"
-
-static int src_indirect = 0;
-static int dest_indirect = 0;
-static int src_addend = 0;
-static int dest_addend = 0;
-
-static int
-disp8 ()
-{
-  int rv;
-  int tsave = trace;
-
-  if (trace == 1)
-    trace = 0;
-  rv = mem_get_qi (get_reg (pc));
-  regs.r_pc++;
-  trace = tsave;
-  return rv;
-}
-
-static int
-disp16 ()
-{
-  int rv;
-  int tsave = trace;
-
-  if (trace == 1)
-    trace = 0;
-  rv = mem_get_hi (get_reg (pc));
-  regs.r_pc += 2;
-  trace = tsave;
-  return rv;
-}
-
-static int
-disp24 ()
-{
-  int rv;
-  int tsave = trace;
-
-  if (trace == 1)
-    trace = 0;
-  rv = mem_get_psi (get_reg (pc));
-  regs.r_pc += 3;
-  trace = tsave;
-  return rv;
-}
-
-static int
-disp20 ()
-{
-  return disp24 () & 0x000fffff;
-}
-
-const char *
-bits (int v, int b)
-{
-  static char buf[17];
-  char *bp = buf + 16;
-  *bp = 0;
-  while (b)
-    {
-      *--bp = (v & 1) ? '1' : '0';
-      v >>= 1;
-      b--;
-    }
-  return bp;
-}
-
-static const char *the_bits = 0;
-
-void
-decode_indirect (int si, int di)
-{
-  src_indirect = si;
-  dest_indirect = di;
-  if (trace && (si || di))
-    printf ("indirect: s:%d d:%d\n", si, di);
-}
-
-void
-decode_index (int sa, int da)
-{
-  src_addend = sa;
-  dest_addend = da;
-  if (trace && (sa || da))
-    printf ("index: s:%d d:%d\n", sa, da);
-}
-
-srcdest
-decode_srcdest4 (int destcode, int bw)
-{
-  srcdest sd;
-  sd.bytes = bw ? 2 : 1;
-  sd.mem = (destcode >= 6) ? 1 : 0;
-  static const char *dc_wnames[16] = { "r0", "r1", "r2", "r3",
-    "a0", "a1", "[a0]", "[a1]",
-    "disp8[a0]", "disp8[a1]", "disp8[sb]", "disp8[fb]",
-    "disp16[a0]", "disp16[a1]", "disp16[sb]", "disp16"
-  };
-  static const char *dc_bnames[4] = { "r0l", "r0h", "r1l", "r1h" };;
-
-  if (trace)
-    {
-      const char *n = dc_wnames[destcode];
-      if (bw == 0 && destcode <= 3)
-	n = dc_bnames[destcode];
-      if (!the_bits)
-	the_bits = bits (destcode, 4);
-      printf ("decode: %s (%d) : %s\n", the_bits, destcode, n);
-      the_bits = 0;
-    }
-
-  switch (destcode)
-    {
-    case 0x0:
-      sd.u.reg = bw ? r0 : r0l;
-      break;
-    case 0x1:
-      sd.u.reg = bw ? r1 : r0h;
-      break;
-    case 0x2:
-      sd.u.reg = bw ? r2 : r1l;
-      break;
-    case 0x3:
-      sd.u.reg = bw ? r3 : r1h;
-      break;
-    case 0x4:
-      sd.u.reg = a0;
-      break;
-    case 0x5:
-      sd.u.reg = a1;
-      break;
-    case 0x6:
-      sd.u.addr = get_reg (a0);
-      break;
-    case 0x7:
-      sd.u.addr = get_reg (a1);
-      break;
-    case 0x8:
-      sd.u.addr = get_reg (a0) + disp8 ();
-      break;
-    case 0x9:
-      sd.u.addr = get_reg (a1) + disp8 ();
-      break;
-    case 0xa:
-      sd.u.addr = get_reg (sb) + disp8 ();
-      break;
-    case 0xb:
-      sd.u.addr = get_reg (fb) + sign_ext (disp8 (), 8);
-      break;
-    case 0xc:
-      sd.u.addr = get_reg (a0) + disp16 ();
-      break;
-    case 0xd:
-      sd.u.addr = get_reg (a1) + disp16 ();
-      break;
-    case 0xe:
-      sd.u.addr = get_reg (sb) + disp16 ();
-      break;
-    case 0xf:
-      sd.u.addr = disp16 ();
-      break;
-    default:
-      abort ();
-    }
-  if (sd.mem)
-    sd.u.addr &= addr_mask;
-  return sd;
-}
-
-srcdest
-decode_jumpdest (int destcode, int w)
-{
-  srcdest sd;
-  sd.bytes = w ? 2 : 3;
-  sd.mem = (destcode >= 6) ? 1 : 0;
-  static const char *dc_wnames[16] = { "r0", "r1", "r2", "r3",
-    "a0", "a1", "[a0]", "[a1]",
-    "disp8[a0]", "disp8[a1]", "disp8[sb]", "disp8[fb]",
-    "disp20[a0]", "disp20[a1]", "disp16[sb]", "abs16"
-  };
-  static const char *dc_anames[4] = { "r0l", "r0h", "r1l", "r1h" };
-
-  if (trace)
-    {
-      const char *n = dc_wnames[destcode];
-      if (w == 0 && destcode <= 3)
-	n = dc_anames[destcode];
-      if (!the_bits)
-	the_bits = bits (destcode, 4);
-      printf ("decode: %s : %s\n", the_bits, n);
-      the_bits = 0;
-    }
-
-  switch (destcode)
-    {
-    case 0x0:
-      sd.u.reg = w ? r0 : r2r0;
-      break;
-    case 0x1:
-      sd.u.reg = w ? r1 : r2r0;
-      break;
-    case 0x2:
-      sd.u.reg = w ? r2 : r3r1;
-      break;
-    case 0x3:
-      sd.u.reg = w ? r3 : r3r1;
-      break;
-    case 0x4:
-      sd.u.reg = w ? a0 : a1a0;
-      break;
-    case 0x5:
-      sd.u.reg = w ? a1 : a1a0;
-      break;
-    case 0x6:
-      sd.u.addr = get_reg (a0);
-      break;
-    case 0x7:
-      sd.u.addr = get_reg (a1);
-      break;
-    case 0x8:
-      sd.u.addr = get_reg (a0) + disp8 ();
-      break;
-    case 0x9:
-      sd.u.addr = get_reg (a1) + disp8 ();
-      break;
-    case 0xa:
-      sd.u.addr = get_reg (sb) + disp8 ();
-      break;
-    case 0xb:
-      sd.u.addr = get_reg (fb) + sign_ext (disp8 (), 8);
-      break;
-    case 0xc:
-      sd.u.addr = get_reg (a0) + disp20 ();
-      break;
-    case 0xd:
-      sd.u.addr = get_reg (a1) + disp20 ();
-      break;
-    case 0xe:
-      sd.u.addr = get_reg (sb) + disp16 ();
-      break;
-    case 0xf:
-      sd.u.addr = disp16 ();
-      break;
-    default:
-      abort ();
-    }
-  if (sd.mem)
-    sd.u.addr &= addr_mask;
-  return sd;
-}
-
-srcdest
-decode_dest3 (int destcode, int bw)
-{
-  static char map[8] = { -1, -1, -1, 1, 0, 10, 11, 15 };
-
-  the_bits = bits (destcode, 3);
-  return decode_srcdest4 (map[destcode], bw);
-}
-
-srcdest
-decode_src2 (int srccode, int bw, int d)
-{
-  static char map[4] = { 0, 10, 11, 15 };
-
-  the_bits = bits (srccode, 2);
-  return decode_srcdest4 (srccode ? map[srccode] : 1 - d, bw);
-}
-
-static struct
-{
-  reg_id b_regno;
-  reg_id w_regno;
-  int is_memory;
-  int disp_bytes;
-  char *name;
-} modes23[] =
-{
-  {
-  a0, a0, 1, 0, "[A0]"},	/* 0 0 0 0 0 */
-  {
-  a1, a1, 1, 0, "[A1]"},	/* 0 0 0 0 1 */
-  {
-  a0, a0, 0, 0, "A0"},		/* 0 0 0 1 0 */
-  {
-  a1, a1, 0, 0, "A1"},		/* 0 0 0 1 1 */
-  {
-  a0, a0, 1, 1, "dsp:8[A0]"},	/* 0 0 1 0 0 */
-  {
-  a1, a1, 1, 1, "dsp:8[A1]"},	/* 0 0 1 0 1 */
-  {
-  sb, sb, 1, 1, "dsp:8[SB]"},	/* 0 0 1 1 0 */
-  {
-  fb, fb, 1, -1, "dsp:8[FB]"},	/* 0 0 1 1 1 */
-  {
-  a0, a0, 1, 2, "dsp:16[A0]"},	/* 0 1 0 0 0 */
-  {
-  a1, a1, 1, 2, "dsp:16[A1]"},	/* 0 1 0 0 1 */
-  {
-  sb, sb, 1, 2, "dsp:16[SB]"},	/* 0 1 0 1 0 */
-  {
-  fb, fb, 1, -2, "dsp:16[FB]"},	/* 0 1 0 1 1 */
-  {
-  a0, a0, 1, 3, "dsp:24[A0]"},	/* 0 1 1 0 0 */
-  {
-  a1, a1, 1, 3, "dsp:24[A1]"},	/* 0 1 1 0 1 */
-  {
-  mem, mem, 1, 3, "abs24"},	/* 0 1 1 1 0 */
-  {
-  mem, mem, 1, 2, "abs16"},	/* 0 1 1 1 1 */
-  {
-  r0h, r2, 0, 0, "R0H/R2"},	/* 1 0 0 0 0 */
-  {
-  r1h, r3, 0, 0, "R1H/R3"},	/* 1 0 0 0 1 */
-  {
-  r0l, r0, 0, 0, "R0L/R0"},	/* 1 0 0 1 0 */
-  {
-  r1l, r1, 0, 0, "R1L/R1"},	/* 1 0 0 1 1 */
-};
-
-static srcdest
-decode_sd23 (int bbb, int bb, int bytes, int ind, int add)
-{
-  srcdest sd;
-  int code = (bbb << 2) | bb;
-
-  if (code >= sizeof (modes23) / sizeof (modes23[0]))
-    abort ();
-
-  if (trace)
-    {
-      char *b1 = "";
-      char *b2 = "";
-      char ad[30];
-      if (ind)
-	{
-	  b1 = "[";
-	  b2 = "]";
-	}
-      if (add)
-	sprintf (ad, "%+d", add);
-      else
-	ad[0] = 0;
-      if (!the_bits)
-	the_bits = bits (code, 4);
-      printf ("decode: %s (%d) : %s%s%s%s\n", the_bits, code, b1,
-	      modes23[code].name, ad, b2);
-      the_bits = 0;
-    }
-
-  sd.bytes = bytes;
-  sd.mem = modes23[code].is_memory;
-  if (sd.mem)
-    {
-      if (modes23[code].w_regno == mem)
-	sd.u.addr = 0;
-      else
-	sd.u.addr = get_reg (modes23[code].w_regno);
-      switch (modes23[code].disp_bytes)
-	{
-	case 1:
-	  sd.u.addr += disp8 ();
-	  break;
-	case 2:
-	  sd.u.addr += disp16 ();
-	  break;
-	case -1:
-	  sd.u.addr += sign_ext (disp8 (), 8);
-	  break;
-	case -2:
-	  sd.u.addr += sign_ext (disp16 (), 16);
-	  break;
-	case 3:
-	  sd.u.addr += disp24 ();
-	  break;
-	default:
-	  break;
-	}
-      if (add)
-	sd.u.addr += add;
-      if (ind)
-	sd.u.addr = mem_get_si (sd.u.addr & membus_mask);
-      sd.u.addr &= membus_mask;
-    }
-  else
-    {
-      sd.u.reg = (bytes > 1) ? modes23[code].w_regno : modes23[code].b_regno;
-      if (bytes == 3 || bytes == 4)
-	{
-	  switch (sd.u.reg)
-	    {
-	    case r0:
-	      sd.u.reg = r2r0;
-	      break;
-	    case r1:
-	      sd.u.reg = r3r1;
-	      break;
-	    case r2:
-	      abort ();
-	    case r3:
-	      abort ();
-	    default:;
-	    }
-	}
-
-    }
-  return sd;
-}
-
-srcdest
-decode_dest23 (int ddd, int dd, int bytes)
-{
-  return decode_sd23 (ddd, dd, bytes, dest_indirect, dest_addend);
-}
-
-srcdest
-decode_src23 (int sss, int ss, int bytes)
-{
-  return decode_sd23 (sss, ss, bytes, src_indirect, src_addend);
-}
-
-srcdest
-decode_dest2 (int dd, int bytes)
-{
-  /* r0l/r0, abs16, dsp:8[SB], dsp:8[FB] */
-  static char map[4] = { 0x12, 0x0f, 0x06, 0x07 };
-
-  the_bits = bits (dd, 2);
-  return decode_sd23 (map[dd] >> 2, map[dd] & 3, bytes, dest_indirect,
-		      dest_addend);
-}
-
-srcdest
-decode_src3 (int sss, int bytes)
-{
-  /* r0, r1, a0, a1, r2, r3, N/A, N/A */
-  static char map[8] = { 0x12, 0x13, 0x02, 0x03, 0x10, 0x11, 0, 0 };
-
-  the_bits = bits (sss, 3);
-  return decode_sd23 (map[sss] >> 2, map[sss] & 3, bytes, src_indirect,
-		      src_addend);
-}
-
-srcdest
-decode_dest1 (int destcode, int bw)
-{
-  the_bits = bits (destcode, 1);
-  return decode_srcdest4 (destcode, bw);
-}
-
-srcdest
-decode_cr (int crcode)
-{
-  static int regcode[] = { 0, intbl, intbh, flags, isp, sp, sb, fb };
-  srcdest sd;
-  sd.mem = 0;
-  sd.bytes = 2;
-  sd.u.reg = regcode[crcode & 7];
-  return sd;
-}
-
-srcdest
-decode_cr_b (int crcode, int bank)
-{
-  /* FIXME: intbl, intbh, isp */
-  static int regcode[3][8] = {
-    {0, 0, flags, 0, 0, 0, 0, 0},
-    {intb, sp, sb, fb, 0, 0, 0, isp},
-    {0, 0, 0, 0, 0, 0, 0, 0}
-  };
-  srcdest sd;
-  sd.mem = 0;
-  sd.bytes = bank ? 3 : 2;
-  sd.u.reg = regcode[bank][crcode & 7];
-  return sd;
-}
-
-srcdest
-widen_sd (srcdest sd)
-{
-  sd.bytes *= 2;
-  if (!sd.mem)
-    switch (sd.u.reg)
-      {
-      case r0l:
-	sd.u.reg = r0;
-	break;
-      case r0:
-	sd.u.reg = r2r0;
-	break;
-      case r1l:
-	sd.u.reg = r1;
-	break;
-      case r1:
-	sd.u.reg = r3r1;
-	break;
-      case a0:
-	if (A16)
-	  sd.u.reg = a1a0;
-	break;
-      default:
-	break;
-      }
-  return sd;
-}
-
-srcdest
-reg_sd (reg_id reg)
-{
-  srcdest rv;
-  rv.bytes = reg_bytes[reg];
-  rv.mem = 0;
-  rv.u.reg = reg;
-  return rv;
-}
-
-int
-get_src (srcdest sd)
-{
-  int v;
-  if (sd.mem)
-    {
-      switch (sd.bytes)
-	{
-	case 1:
-	  v = mem_get_qi (sd.u.addr);
-	  break;
-	case 2:
-	  v = mem_get_hi (sd.u.addr);
-	  break;
-	case 3:
-	  v = mem_get_psi (sd.u.addr);
-	  break;
-	case 4:
-	  v = mem_get_si (sd.u.addr);
-	  break;
-	default:
-	  abort ();
-	}
-    }
-  else
-    {
-      v = get_reg (sd.u.reg);
-      switch (sd.bytes)
-	{
-	case 1:
-	  v &= 0xff;
-	  break;
-	case 2:
-	  v &= 0xffff;
-	  break;
-	case 3:
-	  v &= 0xffffff;
-	  break;
-	}
-    }
-  return v;
-}
-
-void
-put_dest (srcdest sd, int v)
-{
-  if (sd.mem)
-    {
-      switch (sd.bytes)
-	{
-	case 1:
-	  mem_put_qi (sd.u.addr, v);
-	  break;
-	case 2:
-	  mem_put_hi (sd.u.addr, v);
-	  break;
-	case 3:
-	  mem_put_psi (sd.u.addr, v);
-	  break;
-	case 4:
-	  mem_put_si (sd.u.addr, v);
-	  break;
-	}
-    }
-  else
-    {
-      switch (sd.bytes)
-	{
-	case 1:
-	  v &= 0xff;
-	  break;
-	case 2:
-	  v &= 0xffff;
-	  break;
-	case 3:
-	  v &= 0xffffff;
-	  break;
-	}
-      put_reg (sd.u.reg, v);
-    }
-}
-
-srcdest
-decode_bit (int destcode)
-{
-  srcdest sd;
-  int addr = 0;
-  static const char *dc_names[] = { "r0", "r1", "r2", "r3",
-    "a0", "a1", "[a0]", "[a1]",
-    "disp8[a0]", "disp8[a1]", "disp8[sb]", "disp8[fb]",
-    "disp16[a0]", "disp16[a1]", "disp16[sb]", "abs16"
-  };
-
-  if (trace)
-    {
-      const char *the_bits = bits (destcode, 4);
-      printf ("decode: %s : %s\n", the_bits, dc_names[destcode]);
-    }
-
-  switch (destcode)
-    {
-    case 0:
-      sd.u.reg = r0;
-      break;
-    case 1:
-      sd.u.reg = r1;
-      break;
-    case 2:
-      sd.u.reg = r2;
-      break;
-    case 3:
-      sd.u.reg = r3;
-      break;
-    case 4:
-      sd.u.reg = a0;
-      break;
-    case 5:
-      sd.u.reg = a1;
-      break;
-    case 6:
-      addr = get_reg (a0);
-      break;
-    case 7:
-      addr = get_reg (a1);
-      break;
-    case 8:
-      addr = get_reg (a0) + disp8 ();
-      break;
-    case 9:
-      addr = get_reg (a1) + disp8 ();
-      break;
-    case 10:
-      addr = get_reg (sb) * 8 + disp8 ();
-      break;
-    case 11:
-      addr = get_reg (fb) * 8 + sign_ext (disp8 (), 8);
-      break;
-    case 12:
-      addr = get_reg (a0) + disp16 ();
-      break;
-    case 13:
-      addr = get_reg (a1) + disp16 ();
-      break;
-    case 14:
-      addr = get_reg (sb) + disp16 ();
-      break;
-    case 15:
-      addr = disp16 ();
-      break;
-    }
-
-  if (destcode < 6)
-    {
-      int d = disp8 ();
-      sd.mem = 0;
-      sd.mask = 1 << (d & 0x0f);
-    }
-  else
-    {
-      addr &= addr_mask;
-      sd.mem = 1;
-      sd.mask = 1 << (addr & 7);
-      sd.u.addr = addr >> 3;
-    }
-  return sd;
-}
-
-srcdest
-decode_bit11 (int op0)
-{
-  srcdest sd;
-  sd.mask = 1 << (op0 & 7);
-  sd.mem = 1;
-  sd.u.addr = get_reg (sb) + disp8 ();
-  return sd;
-}
-
-int
-get_bit (srcdest sd)
-{
-  int b;
-  if (sd.mem)
-    b = mem_get_qi (sd.u.addr) & sd.mask;
-  else
-    b = get_reg (sd.u.reg) & sd.mask;
-  return b ? 1 : 0;
-}
-
-void
-put_bit (srcdest sd, int val)
-{
-  int b;
-  if (sd.mem)
-    b = mem_get_qi (sd.u.addr);
-  else
-    b = get_reg (sd.u.reg);
-  if (val)
-    b |= sd.mask;
-  else
-    b &= ~sd.mask;
-  if (sd.mem)
-    mem_put_qi (sd.u.addr, b);
-  else
-    put_reg (sd.u.reg, b);
-}
-
-int
-get_bit2 (srcdest sd, int bit)
-{
-  int b;
-  if (sd.mem)
-    b = mem_get_qi (sd.u.addr + (bit >> 3)) & (1 << (bit & 7));
-  else
-    b = get_reg (sd.u.reg) & (1 << bit);
-  return b ? 1 : 0;
-}
-
-void
-put_bit2 (srcdest sd, int bit, int val)
-{
-  int b;
-  if (sd.mem)
-    b = mem_get_qi (sd.u.addr + (bit >> 3));
-  else
-    b = get_reg (sd.u.reg);
-  if (val)
-    b |= (1 << (bit & 7));
-  else
-    b &= ~(1 << (bit & 7));
-  if (sd.mem)
-    mem_put_qi (sd.u.addr + (bit >> 3), b);
-  else
-    put_reg (sd.u.reg, b);
-}