Add support for CRX co-processor opcodes

3 files changed, 96 insertions, 42 deletions

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 342c2f3..11b8a95 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,12 @@
+2004-10-07  Tomer Levi  <Tomer.Levi@nsc.com>
+
+	* crx-opc.c (crx_instruction): Support Co-processor insns.
+	* crx-dis.c (COP_ARG_TYPE): New enum for CO-Processor arguments.
+	(getregliststring): Change function to use the above enum.
+	(print_arg): Handle CO-Processor insns.
+	(crx_cinvs): Add 'b' option to invalidate the branch-target
+	cache.
+
 2004-10-06  Aldy Hernandez  <aldyh@redhat.com>
 
 	* ppc-opc.c (powerpc_opcodes): Add efscfd, efdabs, efdnabs,
diff --git a/opcodes/crx-dis.c b/opcodes/crx-dis.c
index 5796a2e..b2cf312 100644
--- a/opcodes/crx-dis.c
+++ b/opcodes/crx-dis.c
@@ -59,10 +59,25 @@ cinv_entry;
 /* CRX 'cinv' options.  */
 const cinv_entry crx_cinvs[] =
 {
-  {"[i]", 2}, {"[i,u]", 3}, {"[d]", 4},
-  {"[d,u]", 5}, {"[d,i]", 6}, {"[d,i,u]", 7}
+  {"[i]", 2}, {"[i,u]", 3}, {"[d]", 4}, {"[d,u]", 5}, 
+  {"[d,i]", 6}, {"[d,i,u]", 7}, {"[b]", 8}, 
+  {"[b,i]", 10}, {"[b,i,u]", 11}, {"[b,d]", 12}, 
+  {"[b,d,u]", 13}, {"[b,d,i]", 14}, {"[b,d,i,u]", 15}
 };
 
+/* Enum to distinguish CO-Processor [special] registers arguments 
+   from general purpose regidters.  */
+typedef enum COP_ARG_TYPE
+  {
+    /* Not a CO-Processor argument (probably a general purpose reg.).  */
+    NO_COP_ARG = 0,
+    /* A CO-Processor argument (c<N>).  */
+    COP_ARG,
+    /* A CO-Processor special argument (cs<N>).  */
+    COPS_ARG 
+  }
+COP_ARG_TYPE;
+
 /* Number of valid 'cinv' instruction options.  */
 int NUMCINVS = ((sizeof crx_cinvs)/(sizeof crx_cinvs[0]));
 /* Current opcode table entry we're disassembling.  */
@@ -89,7 +104,7 @@ static char *getcopregname    (copreg, reg_type);
 static char * getprocregname  (int);
 static char *gettrapstring    (unsigned);
 static char *getcinvstring    (unsigned);
-static void getregliststring  (int, char *, int);
+static void getregliststring  (int, char *, enum COP_ARG_TYPE);
 static wordU get_word_at_PC   (bfd_vma, struct disassemble_info *);
 static void get_words_at_PC   (bfd_vma, struct disassemble_info *);
 static unsigned long build_mask (void);
@@ -225,7 +240,7 @@ powerof2 (int x)
 /* Transform a register bit mask to a register list.  */
 
 void
-getregliststring (int trap, char *string, int core_cop)
+getregliststring (int trap, char *string, enum COP_ARG_TYPE core_cop)
 {
   char temp_string[5];
   int i;
@@ -236,11 +251,21 @@ getregliststring (int trap, char *string, int core_cop)
   for (i = 0; i < 16; i++)
     {
       if (trap & 0x1)
-        {
-          if (core_cop)
-	    sprintf (temp_string, "r%d", i);
-          else
-	    sprintf (temp_string, "c%d", i);
+	{
+	  switch (core_cop)
+	    {
+	    case NO_COP_ARG:
+	      sprintf (temp_string, "r%d", i);
+	      break;
+	    case COP_ARG:
+	      sprintf (temp_string, "c%d", i);
+	      break;
+	    case COPS_ARG:
+	      sprintf (temp_string, "cs%d", i);
+	      break;
+	    default:
+	      break;
+	    }
           strcat (string, temp_string);
           if (trap & 0xfffe)
 	    strcat (string, ",");
@@ -490,22 +515,26 @@ print_arg (argument *a, struct disassemble_info *info)
 
       else if (INST_HAS_REG_LIST)
         {
-          if (!IS_INSN_TYPE (COP_REG_INS))
+	  COP_ARG_TYPE cop_ins = IS_INSN_TYPE (COP_REG_INS) ? 
+				 COP_ARG : IS_INSN_TYPE (COPS_REG_INS) ? 
+				 COPS_ARG : NO_COP_ARG;
+
+          if (cop_ins != NO_COP_ARG)
+	    {
+	      /*  Check for proper argument number.  */
+	      if (processing_argument_number == 2)
+		{
+		  getregliststring (a->constant, string, cop_ins);
+		  func (stream, "%s", string);
+		}
+	      else
+		func (stream, "$0x%x", a->constant);
+	    }
+	  else
             {
-              getregliststring (a->constant, string, 1);
+              getregliststring (a->constant, string, cop_ins);
               func (stream, "%s", string);
             }
-          else
-            {
-              /*  Check for proper argument number.  */
-              if (processing_argument_number == 2)
-                {
-                  getregliststring (a->constant, string, 0);
-                  func (stream, "%s", string);
-                }
-              else
-		func (stream, "$0x%x", a->constant);
-            }
         }
       else
 	func (stream, "$0x%x", a->constant);
diff --git a/opcodes/crx-opc.c b/opcodes/crx-opc.c
index b01addf..846b78c 100644
--- a/opcodes/crx-opc.c
+++ b/opcodes/crx-opc.c
@@ -488,39 +488,55 @@ const inst crx_instruction[] =
 
   BR_INST ("bal",   0x307, 0x317, 0),
 
-  /* Decrement and Branch instructions */
+  /* Decrement and Branch instructions.  */
   BR_INST ("dbnzb", 0x304, 0x314, DCR_BRANCH_INS),
   BR_INST ("dbnzw", 0x305, 0x315, DCR_BRANCH_INS),
   BR_INST ("dbnzd", 0x306, 0x316, DCR_BRANCH_INS),
 
-  /* Jump and link instructions */
+  /* Jump and link instructions.  */
   REG1_INST ("jal",    0xFF8),
   REG2_INST ("jal",    0x37),
   REG2_INST ("jalid",  0x33),
 
-  /* opc12 c4 opc12 r mask16 */
-  {"loadmcr", 3, 0x3110300, 4,	COP_REG_INS | REG_LIST | FMT_5, {{i4,16}, {regr,0}, {i16,0}}},
-  {"stormcr", 3, 0x3110301, 4,	COP_REG_INS | REG_LIST | FMT_5, {{i4,16}, {regr,0}, {i16,0}}},
-
-  /* esc16 r procreg */
-  {"mtpr",    2, 0x3009,  16, 0, {{regr8,8}, {regr8,0}}},
-  /* esc16 procreg r */
-  {"mfpr",    2, 0x300A,  16, 0, {{regr8,8}, {regr8,0}}},
-  /* opc12 c4 opc8 r copreg */
-  {"mtcr",    2, 0x301030,  8, COP_REG_INS | FMT_2, {{i4,16}, {regr,4}, {copregr,0}}},
-  /* opc12 c4 opc8 copreg r */
-  {"mfcr",    2, 0x301031,  8, COP_REG_INS | FMT_2, {{i4,16}, {copregr,4}, {regr,0}}},
-  /* opc12 c4 opc8 r copsreg */
-  {"mtcsr",   2, 0x301032,  8, COP_REG_INS | FMT_2, {{i4,16}, {regr,4}, {copsregr,0}}},
-  /* opc12 c4 opc8 copsreg r */
-  {"mfcsr",   2, 0x301033,  8, COP_REG_INS | FMT_2, {{i4,16}, {copsregr,4}, {regr,0}}},
-
-  /* CO-processor extensions */
+/* Create a CO-processor instruction.  */
+#define  COP_INST(NAME, OPC, TYPE, REG1, REG2) \
+  /* opc12 c4 opc8 REG1 REG2 */		       \
+  {NAME,  2, 0x301030+OPC,  8, TYPE | FMT_2, {{i4,16}, {REG1,4}, {REG2,0}}}
+
+  COP_INST ("mtcr",   0, COP_REG_INS,	regr,	  copregr),
+  COP_INST ("mfcr",   1, COP_REG_INS,	copregr,  regr),
+  COP_INST ("mtcsr",  2, COPS_REG_INS,	regr,	  copsregr),
+  COP_INST ("mfcsr",  3, COPS_REG_INS,	copsregr, regr),
+  COP_INST ("ldcr",   4, COP_REG_INS,	regr,	  copregr),
+  COP_INST ("stcr",   5, COP_REG_INS,	regr,	  copregr),
+  COP_INST ("ldcsr",  6, COPS_REG_INS,	regr,	  copsregr),
+  COP_INST ("stcsr",  7, COPS_REG_INS,	regr,	  copsregr),
+
+/* Create a memory-related CO-processor instruction.  */
+#define  COPMEM_INST(NAME, OPC, TYPE) \
+  /* opc12 c4 opc12 r mask16 */	      \
+  {NAME,  3, 0x3110300+OPC,  4, TYPE | REG_LIST | FMT_5, {{i4,16}, {regr,0}, {i16,0}}}
+
+  COPMEM_INST("loadmcr",  0,  COP_REG_INS),
+  COPMEM_INST("stormcr",  1,  COP_REG_INS),
+  COPMEM_INST("loadmcsr", 2,  COPS_REG_INS),
+  COPMEM_INST("stormcsr", 3,  COPS_REG_INS),
+
+  /* CO-processor extensions.  */
   /* opc12 c4 opc4 i4 disps9 */
   {"bcop",    2, 0x30107, 12, COP_BRANCH_INS | FMT_4, {{i4,16}, {i4,8}, {d9,0}}},
   /* opc12 c4 opc4 i4 disps25 */
   {"bcop",    3, 0x31107, 12, COP_BRANCH_INS | FMT_4, {{i4,16}, {i4,8}, {d25,0}}},
+  /* opc12 c4 opc4 cpdo r r */
+  {"cpdop",   2, 0x3010B, 12, COP_REG_INS | FMT_4, {{i4,16}, {i4,8}, {regr,4}, {regr,0}}},
+  /* opc12 c4 opc4 cpdo r r cpdo16 */
+  {"cpdop",   3, 0x3110B, 12, COP_REG_INS | FMT_4, {{i4,16}, {i4,8}, {regr,4}, {regr,0}, {i16,0}}},
+  /* esc16 r procreg */
+  {"mtpr",    2, 0x3009,  16, 0, {{regr8,8}, {regr8,0}}},
+  /* esc16 procreg r */
+  {"mfpr",    2, 0x300A,  16, 0, {{regr8,8}, {regr8,0}}},
 
+  /* Miscellaneous.  */
   /* opc12 i4 */
   {"excp",    1, 0xFFF,	20, 0, {{i4,16}}},
   /* opc28 i4 */