Make RL78 disassembler and simulator respect ISA for mul/div

[gas]
	* config/rl78-defs.h (rl78_isa_g10): New.
	(rl78_isa_g13): New.
	(rl78_isa_g14): New.
	* config/rl78-parse.y (ISA_G10): New.
	(ISA_G13): New.
	(ISA_G14): New.
	(MULHU, MULH, MULU, DIVHU, DIVWU, MACHU, MACH): Use them.
	* config/tc-rl78.c (rl78_isa_g10): New.
	(rl78_isa_g13): New.
	(rl78_isa_g14): New.

[gdb]
	* rl78-tdep.c (rl78_analyze_prologue): Pass RL78_ISA_DEFAULT to
	rl78_decode_opcode

[include]
	* dis-asm.h (print_insn_rl78_g10): New.
	(print_insn_rl78_g13): New.
	(print_insn_rl78_g14): New.
	(rl78_get_disassembler): New.
	* opcode/rl78.h (RL78_Dis_Isa): New.
	(rl78_decode_opcode): Add ISA parameter.

[opcodes]
	* disassemble.c (disassembler): Choose suitable disassembler based
	on E_ABI.
	* rl78-decode.opc (rl78_decode_opcode): Take ISA parameter.  Use
	it to decode mul/div insns.
	* rl78-decode.c: Regenerate.
	* rl78-dis.c (print_insn_rl78): Rename to...
	(print_insn_rl78_common): ...this, take ISA parameter.
	(print_insn_rl78): New.
	(print_insn_rl78_g10): New.
	(print_insn_rl78_g13): New.
	(print_insn_rl78_g14): New.
	(rl78_get_disassembler): New.

[sim]
	* rl78/cpu.c (g14_multiply): New.
	* rl78/cpu.h (g14_multiply): New.
	* rl78/load.c (rl78_load): Decode ISA completely.
	* rl78/main.c (main): Expand -M to include other ISAs.
	* rl78/rl78.c (decode_opcode): Decode based on ISA.
	* rl78/trace.c (rl78_disasm_fn): New.
	(sim_disasm_init): Reset it.
	(sim_disasm_one): Get correct disassembler for ISA.

9 files changed, 121 insertions, 11 deletions

diff --git a/sim/rl78/ChangeLog b/sim/rl78/ChangeLog
index d515328..c3eec85 100644
--- a/sim/rl78/ChangeLog
+++ b/sim/rl78/ChangeLog
@@ -1,3 +1,14 @@
+2015-04-30  DJ Delorie  <dj@redhat.com>
+
+	* cpu.c (g14_multiply): New.
+	* cpu.h (g14_multiply): New.
+	* load.c (rl78_load): Decode ISA completely.
+	* main.c (main): Expand -M to include other ISAs.
+	* rl78.c (decode_opcode): Decode based on ISA.
+	* trace.c (rl78_disasm_fn): New.
+	(sim_disasm_init): Reset it.
+	(sim_disasm_one): Get correct disassembler for ISA.
+
 2015-04-13  Mike Frysinger  <vapier@gentoo.org>
 
 	* configure: Regenerate.
diff --git a/sim/rl78/cpu.c b/sim/rl78/cpu.c
index 32b1399..ed5f118 100644
--- a/sim/rl78/cpu.c
+++ b/sim/rl78/cpu.c
@@ -34,6 +34,7 @@ int rl78_in_gdb = 1;
 int timer_enabled = 2;
 int rl78_g10_mode = 0;
 int g13_multiply = 0;
+int g14_multiply = 0;
 
 #define REGISTER_ADDRESS 0xffee0
 
diff --git a/sim/rl78/cpu.h b/sim/rl78/cpu.h
index 0e10db9..85c03ae 100644
--- a/sim/rl78/cpu.h
+++ b/sim/rl78/cpu.h
@@ -99,5 +99,6 @@ extern unsigned int counts_per_insn[0x100000];
 
 extern int rl78_g10_mode;
 extern int g13_multiply;
+extern int g14_multiply;
 
 #endif
diff --git a/sim/rl78/gdb-if.c b/sim/rl78/gdb-if.c
index 6317a73..cb64b7a 100644
--- a/sim/rl78/gdb-if.c
+++ b/sim/rl78/gdb-if.c
@@ -86,6 +86,37 @@ sim_open (SIM_OPEN_KIND kind,
 
   sim_disasm_init (abfd);
   open = 1;
+
+  while (argv != NULL && *argv != NULL)
+    {
+      if (strcmp (*argv, "g10") == 0 || strcmp (*argv, "-Mg10") == 0)
+	{
+	  fprintf (stderr, "rl78 g10 support enabled.\n");
+	  rl78_g10_mode = 1;
+	  g13_multiply = 0;
+	  g14_multiply = 0;
+	  mem_set_mirror (0, 0xf8000, 4096);
+	  break;
+	}
+      if (strcmp (*argv, "g13") == 0 || strcmp (*argv, "-Mg13") == 0)
+	{
+	  fprintf (stderr, "rl78 g13 support enabled.\n");
+	  rl78_g10_mode = 0;
+	  g13_multiply = 1;
+	  g14_multiply = 0;
+	  break;
+	}
+      if (strcmp (*argv, "g14") == 0 || strcmp (*argv, "-Mg14") == 0)
+	{
+	  fprintf (stderr, "rl78 g14 support enabled.\n");
+	  rl78_g10_mode = 0;
+	  g13_multiply = 0;
+	  g14_multiply = 1;
+	  break;
+	}
+      argv++;
+    }
+
   return &the_minisim;
 }
 
diff --git a/sim/rl78/load.c b/sim/rl78/load.c
index 66d00d3..ef559a5 100644
--- a/sim/rl78/load.c
+++ b/sim/rl78/load.c
@@ -92,13 +92,26 @@ rl78_load (bfd *prog, host_callback *callbacks, const char * const simname)
       return;
     }
 
-  rl78_g10_mode = 0;
   switch (elf_elfheader (prog)->e_flags & E_FLAG_RL78_CPU_MASK)
     {
-    case E_FLAG_RL78_G10: rl78_g10_mode = 1; break;
-    case E_FLAG_RL78_G13: g13_multiply = 1; break;
+    case E_FLAG_RL78_G10:
+      rl78_g10_mode = 1;
+      g13_multiply = 0;
+      g14_multiply = 0;
+      mem_set_mirror (0, 0xf8000, 4096);
+      break;
+    case E_FLAG_RL78_G13:
+      rl78_g10_mode = 0;
+      g13_multiply = 1;
+      g14_multiply = 0;
+      break;
     case E_FLAG_RL78_G14:
+      rl78_g10_mode = 0;
+      g13_multiply = 0;
+      g14_multiply = 1;
+      break;
     default:
+      /* Keep whatever was manually specified.  */
       break;
     }
 
diff --git a/sim/rl78/main.c b/sim/rl78/main.c
index 0ae50fd..acdc20b 100644
--- a/sim/rl78/main.c
+++ b/sim/rl78/main.c
@@ -68,7 +68,7 @@ main (int argc, char **argv)
 
   xmalloc_set_program_name (argv[0]);
 
-  while ((o = getopt (argc, argv, "tvdr:D:")) != -1)
+  while ((o = getopt (argc, argv, "tvdr:D:M:")) != -1)
     {
       switch (o)
 	{
@@ -87,6 +87,27 @@ main (int argc, char **argv)
 	case 'D':
 	  dump_counts_filename = optarg;
 	  break;
+	case 'M':
+	  if (strcmp (optarg, "g10") == 0)
+	    {
+	      rl78_g10_mode = 1;
+	      g13_multiply = 0;
+	      g14_multiply = 0;
+	      mem_set_mirror (0, 0xf8000, 4096);
+	    }
+	  if (strcmp (optarg, "g13") == 0)
+	    {
+	      rl78_g10_mode = 0;
+	      g13_multiply = 1;
+	      g14_multiply = 0;
+	    }
+	  if (strcmp (optarg, "g14") == 0)
+	    {
+	      rl78_g10_mode = 0;
+	      g13_multiply = 0;
+	      g14_multiply = 1;
+	    }
+	  break;
 	case '?':
 	  {
 	    fprintf (stderr,
@@ -96,6 +117,7 @@ main (int argc, char **argv)
 		     "\t-t\t\t- trace.\n"
 		     "\t-d\t\t- disassemble.\n"
 		     "\t-r <bytes>\t- ram size.\n"
+		     "\t-M <mcu>\t- mcu type, default none, allowed: g10,g13,g14\n"
 		     "\t-D <filename>\t- dump cycle count histogram\n");
 	    exit (1);
 	  }
diff --git a/sim/rl78/mem.c b/sim/rl78/mem.c
index 8d95199..f40d2c1 100644
--- a/sim/rl78/mem.c
+++ b/sim/rl78/mem.c
@@ -63,6 +63,18 @@ mem_rom_size (int rom_bytes)
   rom_limit = rom_bytes;
 }
 
+int mirror_rom_base = 0x01000;
+int mirror_ram_base = 0xf1000;
+int mirror_length = 0x7000;
+
+void
+mem_set_mirror (int rom_base, int ram_base, int length)
+{
+  mirror_rom_base = rom_base;
+  mirror_ram_base = ram_base;
+  mirror_length = length;
+}
+
 /* ---------------------------------------------------------------------- */
 /* Note: the RL78 memory map has a few surprises.  For starters, part
    of the first 64k is mapped to the last 64k, depending on an SFR bit
@@ -92,13 +104,11 @@ static int
 address_mapping (int address)
 {
   address &= MASK;
-  if (address >= 0xf1000 && address < ram_base)
+  if (address >= mirror_ram_base && address < mirror_ram_base + mirror_length)
     {
-      address &= 0xffff;
-      tprintf ("&");
+      address = address - mirror_ram_base + mirror_rom_base;
       if (memory[RL78_SFR_PMC] & 1)
 	{
-	  tprintf ("|");
 	  address |= 0x10000;
 	}
       last_addr_was_mirror = 1;
diff --git a/sim/rl78/rl78.c b/sim/rl78/rl78.c
index aca6762..c8d1442 100644
--- a/sim/rl78/rl78.c
+++ b/sim/rl78/rl78.c
@@ -421,10 +421,16 @@ decode_opcode (void)
   int a, b, v, v2;
   unsigned int u, u2;
   int obits;
+  RL78_Dis_Isa isa;
+
+  isa = (rl78_g10_mode ? RL78_ISA_G10
+	: g14_multiply ? RL78_ISA_G14
+	: g13_multiply ? RL78_ISA_G13
+	: RL78_ISA_DEFAULT);
 
   rl78_data.dpc = pc;
   opcode_size = rl78_decode_opcode (pc, &opcode,
-				    rl78_get_byte, &rl78_data);
+				    rl78_get_byte, &rl78_data, isa);
 
   opcode_pc = pc;
   pc += opcode_size;
@@ -851,7 +857,7 @@ decode_opcode (void)
 
       rl78_data.dpc = pc;
       opcode_size = rl78_decode_opcode (pc, &opcode,
-					rl78_get_byte, &rl78_data);
+					rl78_get_byte, &rl78_data, isa);
       pc += opcode_size;
       tprintf (" skipped: %s\n", opcode.syntax);
       break;
diff --git a/sim/rl78/trace.c b/sim/rl78/trace.c
index 764c85e..b8dfb34 100644
--- a/sim/rl78/trace.c
+++ b/sim/rl78/trace.c
@@ -37,6 +37,8 @@
 #include "mem.h"
 #include "load.h"
 
+static disassembler_ftype rl78_disasm_fn = NULL;
+
 static int
 sim_dis_read (bfd_vma memaddr, bfd_byte * ptr, unsigned int length,
 	      struct disassemble_info *info)
@@ -111,6 +113,7 @@ void
 sim_disasm_init (bfd *prog)
 {
   current_bfd = prog;
+  rl78_disasm_fn = NULL;
 }
 
 typedef struct Files
@@ -256,6 +259,18 @@ sim_disasm_one (void)
 
   trace = 0;
 
+  if (!rl78_disasm_fn)
+    {
+      if (rl78_g10_mode)
+	rl78_disasm_fn = print_insn_rl78_g10;
+      else if (g14_multiply)
+	rl78_disasm_fn = print_insn_rl78_g14;
+      else if (g13_multiply)
+	rl78_disasm_fn = print_insn_rl78_g13;
+      else
+	rl78_disasm_fn = print_insn_rl78;
+    }
+
   if (filename && functionname && lineno)
     {
       if (lineno != prev_lineno || strcmp (prev_filename, filename))
@@ -323,7 +338,7 @@ sim_disasm_one (void)
   printf ("\033[33m %08llx %06x: ", total_clocks, mypc);
 #endif
 
-  max = print_insn_rl78 (mypc, & info);
+  max = rl78_disasm_fn (mypc, & info);
 
   for (i = 0; i < max; i ++)
     printf ("%02x", mem_get_qi (mypc + i));