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.

3 files changed, 33 insertions, 7 deletions

diff --git a/gas/config/rl78-defs.h b/gas/config/rl78-defs.h
index 080c361..67b1dbb 100644
--- a/gas/config/rl78-defs.h
+++ b/gas/config/rl78-defs.h
@@ -47,6 +47,10 @@ extern void   rl78_linkrelax_branch (void);
 extern int    rl78_parse (void);
 extern int    rl78_wrap (void);
 
+extern int    rl78_isa_g10 (void);
+extern int    rl78_isa_g13 (void);
+extern int    rl78_isa_g14 (void);
+
 extern char * rl78_lex_start;
 extern char * rl78_lex_end;
 #endif
diff --git a/gas/config/rl78-parse.y b/gas/config/rl78-parse.y
index a381973..d2470f0 100644
--- a/gas/config/rl78-parse.y
+++ b/gas/config/rl78-parse.y
@@ -105,6 +105,10 @@ static int    rl78_bit_insn = 0;
 
 #define WA(x) if (!expr_is_word_aligned (x)) rl78_error ("Expression not word-aligned");
 
+#define ISA_G10(s) if (!rl78_isa_g10()) rl78_error (s " is only supported on the G10")
+#define ISA_G13(s) if (!rl78_isa_g13()) rl78_error (s " is only supported on the G13")
+#define ISA_G14(s) if (!rl78_isa_g14()) rl78_error (s " is only supported on the G14")
+
 static void check_expr_is_bit_index (expressionS);
 #define Bit(e) check_expr_is_bit_index (e);
 
@@ -500,16 +504,16 @@ statement :
 
 /* ---------------------------------------------------------------------- */
 
-	| MULHU
+	| MULHU { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x01); }
 
-	| MULH
+	| MULH { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x02); }
 
-	| MULU X
+	| MULU X { ISA_G14 ("MULHU"); }
 	  { B1 (0xd6); }
 
-	| DIVHU
+	| DIVHU { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x03); }
 
 /* Note that the DIVWU encoding was changed from [0xce,0xfb,0x04] to
@@ -517,13 +521,13 @@ statement :
    with the same version number, but varying encodings.  The version
    here matches the hardware.  */
 
-	| DIVWU
+	| DIVWU { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x0b); }
 
-	| MACHU
+	| MACHU { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x05); }
 
-	| MACH
+	| MACH { ISA_G14 ("MULHU"); }
 	  { B3 (0xce, 0xfb, 0x06); }
 
 /* ---------------------------------------------------------------------- */
diff --git a/gas/config/tc-rl78.c b/gas/config/tc-rl78.c
index b5f0563..3c3f78c 100644
--- a/gas/config/tc-rl78.c
+++ b/gas/config/tc-rl78.c
@@ -339,6 +339,24 @@ md_parse_option (int c, char * arg ATTRIBUTE_UNUSED)
   return 0;
 }
 
+int
+rl78_isa_g10 (void)
+{
+  return (elf_flags & E_FLAG_RL78_CPU_MASK) == E_FLAG_RL78_G10;
+}
+
+int
+rl78_isa_g13 (void)
+{
+  return (elf_flags & E_FLAG_RL78_CPU_MASK) == E_FLAG_RL78_G13;
+}
+
+int
+rl78_isa_g14 (void)
+{
+  return (elf_flags & E_FLAG_RL78_CPU_MASK) == E_FLAG_RL78_G14;
+}
+
 void
 md_show_usage (FILE * stream)
 {