[include/opcode]

* rx.h (RX_Operand_Type): Add TwoReg.
(RX_Opcode_ID): Remove ediv and ediv2.

[opcodes]

* rx-decode.opc (SRR): New.
(rx_decode_opcode): Use it for movbi and movbir.  Decode NOP2 (mov
r0,r0) and NOP3 (max r0,r0) special cases.
* rx-decode.c: Regenerate.

[sim/rx]

* rx.c (decode_cache_base): New.
(id_names): Remove ediv and edivu.
(optype_names): Add TwoReg.
(maybe_get_mem_page): New.
(rx_get_byte): Call it.
(get_op): Add TwoReg support.
(put_op): Likewise.
(PD, PS, PS2, GD, GS, GS2, DSZ, SSZ, S2SZ, US1, US2, OM): "opcode"
is a pointer now.
(DO_RETURN): New.  We use longjmp to return an exception result.
(decode_opcode): Make opcode a pointer to the decode cache.  Save
decoded opcode information and re-use.  Call DO_RETURN instead of
return throughout.  Remove ediv and edivu.
* mem.c (ptdc): New.  Adds decode cache.
(rx_mem_ptr): Support it.
(rx_mem_decode_cache): New.
* mem.h (enum mem_ptr_action): add MPA_DECODE_CACHE.
(rx_mem_decode_cache): Declare.
* gdb-if.c (sim_resume): Add decode_opcode's setjmp logic here...
* main.c (main): ...and here.  Use a fast loop if neither trace
nor disassemble is given.
* cpu.h (RX_MAKE_STEPPED, RX_MAKE_HIT_BREAK, RX_MAKE_EXITED,
RX_MAKE_STOPPED, RX_EXITED, RX_STOPPED): Adjust so that 0 is not a
valid code for anything.

1 files changed, 23 insertions, 5 deletions

diff --git a/sim/rx/mem.c b/sim/rx/mem.c
index 3b7a7a2..7405518 100644
--- a/sim/rx/mem.c
+++ b/sim/rx/mem.c
@@ -30,6 +30,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <stdlib.h>
 #include <string.h>
 
+#include "opcode/rx.h"
 #include "mem.h"
 #include "cpu.h"
 #include "syscalls.h"
@@ -46,6 +47,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 static unsigned char **pt[L1_LEN];
 static unsigned char **ptr[L1_LEN];
+static RX_Opcode_Decoded ***ptdc[L1_LEN];
 
 /* [ get=0/put=1 ][ byte size ] */
 static unsigned int mem_counters[2][5];
@@ -85,16 +87,16 @@ rx_mem_ptr (unsigned long address, enum mem_ptr_action action)
     {
       pt[pt1] = (unsigned char **) calloc (L2_LEN, sizeof (char **));
       ptr[pt1] = (unsigned char **) calloc (L2_LEN, sizeof (char **));
+      ptdc[pt1] = (RX_Opcode_Decoded ***) calloc (L2_LEN, sizeof (RX_Opcode_Decoded ***));
     }
   if (pt[pt1][pt2] == 0)
     {
       if (action == MPA_READING)
 	execution_error (SIM_ERR_READ_UNWRITTEN_PAGES, address);
 
-      pt[pt1][pt2] = (unsigned char *) malloc (OFF_LEN);
-      memset (pt[pt1][pt2], 0, OFF_LEN);
-      ptr[pt1][pt2] = (unsigned char *) malloc (OFF_LEN);
-      memset (ptr[pt1][pt2], MC_UNINIT, OFF_LEN);
+      pt[pt1][pt2] = (unsigned char *) calloc (OFF_LEN, 1);
+      ptr[pt1][pt2] = (unsigned char *) calloc (OFF_LEN, 1);
+      ptdc[pt1][pt2] = (RX_Opcode_Decoded **) calloc (OFF_LEN, sizeof(RX_Opcode_Decoded *));
     }
   else if (action == MPA_READING
 	   && ptr[pt1][pt2][pto] == MC_UNINIT)
@@ -105,14 +107,28 @@ rx_mem_ptr (unsigned long address, enum mem_ptr_action action)
       if (ptr[pt1][pt2][pto] == MC_PUSHED_PC)
 	execution_error (SIM_ERR_CORRUPT_STACK, address);
       ptr[pt1][pt2][pto] = MC_DATA;
+      if (ptdc[pt1][pt2][pto])
+	{
+	  free (ptdc[pt1][pt2][pto]);
+	  ptdc[pt1][pt2][pto] = NULL;
+	}
     }
 
   if (action == MPA_CONTENT_TYPE)
-    return ptr[pt1][pt2] + pto;
+    return (unsigned char *) (ptr[pt1][pt2] + pto);
+
+  if (action == MPA_DECODE_CACHE)
+    return (unsigned char *) (ptdc[pt1][pt2] + pto);
 
   return pt[pt1][pt2] + pto;
 }
 
+RX_Opcode_Decoded **
+rx_mem_decode_cache (unsigned long address)
+{
+  return (RX_Opcode_Decoded **) rx_mem_ptr (address, MPA_DECODE_CACHE);
+}
+
 static inline int
 is_reserved_address (unsigned int address)
 {
@@ -335,7 +351,9 @@ mem_put_qi (int address, unsigned char value)
   COUNT (1, 1);
 }
 
+#ifdef CYCLE_ACCURATE
 static int tpu_base;
+#endif
 
 void
 mem_put_hi (int address, unsigned short value)