CSKY: Refine operand format error reporting.

Rename SET_ERROR_NUMBER to SET_ERROR_STRING, and add SET_ERROR_INTEGER
to report error message which pass an integer argument.

gas/
	* config/tc-csky.c (csky_error_state): New member 'arg_int'.
	(SET_ERROR_NUMBER): Rename to SET_ERROR_STRING.
	(SET_ERROR_INTEGER): New.
	(err_formats): Add error format for ERROR_FREG_OVER_RANGE and
	ERROR_VREG_OVER_RANGE.
	(csky_show_error): Pass an integer argument for some error
	numbers.
	(parse_exp): Call SET_ERROR_STRING instead of SET_ERROR_NUMBER.
	(parse_rt): Likewise.
	(parse_type_ctrlreg): Likewise.
	(csky_get_reg_val): Likewise.
	(is_reglist_legal): Likewise.
	(is_freglist_legal): Likewise.
	(is_reglist_dash_comma_legal): Likewise.
	(is_reg_lshift_illegal): Likewise.
	(is_psr_bit): Likewise.
	(parse_type_cpreg): Likewise.
	(parse_type_cpcreg): Likewise.
	(parse_type_areg): Likewise.
	(parse_type_freg): Likewise.
	(parse_ldst_imm): Likewise and call SET_ERROR_INTEGER.
	(get_operand_value): Likewise.
	(parse_operands_op): Likewise and call is_imm_within_range,
	is_imm_within_range_ext and is_oimm_within_range.
	(md_assemble): Likewise.
	(is_imm_within_range): New.
	(is_imm_within_range_ext): Rename from is_imm_over_range.
	(is_oimm_within_range): Rename from is_oimm_over_range.
	(v2_work_add_sub): Call SET_ERROR_INTEGER.
	(csky_rolc): call is_imm_within_range instead of
	is_imm_over_range.

opcodes/
	* csky-dis.c (csky_output_operand): Assign dis_info.value for
	OPRND_TYPE_VREG.

4 files changed, 214 insertions, 109 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 1f30a6b..70e5889 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,39 @@
 2020-08-31  Cooper Qu  <cooper.qu@linux.alibaba.com>
 
+	* config/tc-csky.c (csky_error_state): New member 'arg_int'.
+	(SET_ERROR_NUMBER): Rename to SET_ERROR_STRING.
+	(SET_ERROR_INTEGER): New.
+	(err_formats): Add error format for ERROR_FREG_OVER_RANGE and
+	ERROR_VREG_OVER_RANGE.
+	(csky_show_error): Pass an integer argument for some error
+	numbers.
+	(parse_exp): Call SET_ERROR_STRING instead of SET_ERROR_NUMBER.
+	(parse_rt): Likewise.
+	(parse_type_ctrlreg): Likewise.
+	(csky_get_reg_val): Likewise.
+	(is_reglist_legal): Likewise.
+	(is_freglist_legal): Likewise.
+	(is_reglist_dash_comma_legal): Likewise.
+	(is_reg_lshift_illegal): Likewise.
+	(is_psr_bit): Likewise.
+	(parse_type_cpreg): Likewise.
+	(parse_type_cpcreg): Likewise.
+	(parse_type_areg): Likewise.
+	(parse_type_freg): Likewise.
+	(parse_ldst_imm): Likewise and call SET_ERROR_INTEGER.
+	(get_operand_value): Likewise.
+	(parse_operands_op): Likewise and call is_imm_within_range,
+	is_imm_within_range_ext and is_oimm_within_range.
+	(md_assemble): Likewise.
+	(is_imm_within_range): New.
+	(is_imm_within_range_ext): Rename from is_imm_over_range.
+	(is_oimm_within_range): Rename from is_oimm_over_range.
+	(v2_work_add_sub): Call SET_ERROR_INTEGER.
+	(csky_rolc): call is_imm_within_range instead of
+	is_imm_over_range.
+
+2020-08-31  Cooper Qu  <cooper.qu@linux.alibaba.com>
+
 	* config/tc-csky.c (md_begin): Add warning when -mdsp and
 	-mcpu=ck803ern are both added.
 	(parse_ldst_imm): Fix error message.
diff --git a/gas/config/tc-csky.c b/gas/config/tc-csky.c
index 6fc24ac..01f1d51 100644
--- a/gas/config/tc-csky.c
+++ b/gas/config/tc-csky.c
@@ -327,6 +327,8 @@ enum error_number
   /* The following are errors.  */
   ERROR_CREG_ILLEGAL = 0,
   ERROR_REG_OVER_RANGE,
+  ERROR_FREG_OVER_RANGE,
+  ERROR_VREG_OVER_RANGE,
   ERROR_GREG_ILLEGAL,
   ERROR_802J_REG_OVER_RANGE,
   ERROR_REG_FORMAT,
@@ -372,13 +374,14 @@ struct csky_error_state
 {
   enum error_number err_num;
   int opnum;
+  int arg_int;
   const void *arg1;
   const void *arg2;
 } error_state;
 
 /* This macro is used to set error number and arg1 in the global state.  */
 
-#define SET_ERROR_NUMBER(err, msg)                      \
+#define SET_ERROR_STRING(err, msg)                      \
   do {							\
     if (error_state.err_num > err)			\
       {							\
@@ -387,6 +390,14 @@ struct csky_error_state
       }							\
   } while (0)
 
+#define SET_ERROR_INTEGER(err, integer)			\
+  do {							\
+    if (error_state.err_num > err)			\
+      {							\
+	error_state.err_num = err;			\
+	error_state.arg_int = integer;			\
+      }							\
+  } while (0)
 
 /* Map error identifiers onto a format string, which will use
    arg1 and arg2 from the global error state.  */
@@ -400,6 +411,8 @@ static const struct csky_error_format_map err_formats[] =
 {
   {ERROR_CREG_ILLEGAL, "Operand %d error: control register is illegal."},
   {ERROR_REG_OVER_RANGE, "Operand %d error: r%d register is over range."},
+  {ERROR_FREG_OVER_RANGE, "Operand %d error: vr%d register is over range."},
+  {ERROR_VREG_OVER_RANGE, "Operand %d error: vr%d register is out of range."},
   {ERROR_GREG_ILLEGAL, "Operand %d error: general register is illegal."},
   {ERROR_802J_REG_OVER_RANGE, "Operand %d register %s out of range (802j only has registers:0-15,23,24,25,30)"},
   {ERROR_REG_FORMAT, "Operand %d error: %s."},
@@ -857,11 +870,11 @@ csky_show_error (enum error_number err, int idx, void *arg1, void *arg2)
       break;
     case ERROR_OPERANDS_NUMBER:
     case ERROR_IMM_POWER:
-      as_bad (_(err_formats[err].fmt), (long)arg1);
+      as_bad (_(err_formats[err].fmt), error_state.arg_int);
       break;
 
     case ERROR_OFFSET_UNALIGNED:
-      as_bad (_(err_formats[err].fmt), idx, (long)arg1);
+      as_bad (_(err_formats[err].fmt), idx, error_state.arg_int);
       break;
     case ERROR_RELOC_ILLEGAL:
     case ERROR_BAD_END:
@@ -869,7 +882,9 @@ csky_show_error (enum error_number err, int idx, void *arg1, void *arg2)
       as_bad (_(err_formats[err].fmt), (char *)arg1);
       break;
     case ERROR_REG_OVER_RANGE:
-      as_bad (_(err_formats[err].fmt), idx, (long) arg1);
+    case ERROR_FREG_OVER_RANGE:
+    case ERROR_VREG_OVER_RANGE:
+      as_bad (_(err_formats[err].fmt), idx, error_state.arg_int);
       break;
     case ERROR_802J_REG_OVER_RANGE:
     case ERROR_REG_FORMAT:
@@ -1903,7 +1918,7 @@ parse_exp (char *s, expressionS *e)
   lex_got (&insn_reloc, NULL);
 
   if (e->X_op == O_absent)
-    SET_ERROR_NUMBER (ERROR_MISSING_OPERAND, NULL);
+    SET_ERROR_STRING (ERROR_MISSING_OPERAND, NULL);
 
   new = input_line_pointer;
   input_line_pointer = save;
@@ -2022,7 +2037,7 @@ parse_rt (char *s,
       if (*s == ']')
 	s++;
       else
-	SET_ERROR_NUMBER (ERROR_MISSING_RSQUARE_BRACKETS, NULL);
+	SET_ERROR_STRING (ERROR_MISSING_RSQUARE_BRACKETS, NULL);
 
       if (ep)
        *ep = e;
@@ -2179,14 +2194,14 @@ parse_type_ctrlreg (char** oper)
 		    }
 		  else
 		    {
-		      SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, "control");
+		      SET_ERROR_STRING (ERROR_REG_OVER_RANGE, "control");
 		      return FALSE;
 		    }
 		  if (*s == ',')
 		    s++;
 		  else
 		    {
-		      SET_ERROR_NUMBER (ERROR_CREG_ILLEGAL, NULL);
+		      SET_ERROR_STRING (ERROR_CREG_ILLEGAL, NULL);
 		      return FALSE;
 		    }
 		  char *pS = s;
@@ -2197,7 +2212,7 @@ parse_type_ctrlreg (char** oper)
 		  else
 		    {
 		      /* Error. Missing '>'.  */
-		      SET_ERROR_NUMBER (ERROR_MISSING_RANGLE_BRACKETS, NULL);
+		      SET_ERROR_STRING (ERROR_MISSING_RANGLE_BRACKETS, NULL);
 		      return FALSE;
 		    }
 		  expressionS e;
@@ -2215,13 +2230,13 @@ parse_type_ctrlreg (char** oper)
 	      else
 		{
 		  /* Error. Missing '<'.  */
-		  SET_ERROR_NUMBER (ERROR_MISSING_LANGLE_BRACKETS, NULL);
+		  SET_ERROR_STRING (ERROR_MISSING_LANGLE_BRACKETS, NULL);
 		  return FALSE;
 		}
 	    }
 	  else
 	    {
-	      SET_ERROR_NUMBER (ERROR_CREG_ILLEGAL, NULL);
+	      SET_ERROR_STRING (ERROR_CREG_ILLEGAL, NULL);
 	      return FALSE;
 	    }
 	}
@@ -2444,7 +2459,7 @@ csky_get_reg_val (char *str, int *len)
       /* CK801 register range is r0-r8 & r13-r15.  */
       if ((reg > 8 && reg < 13) || reg > 15)
 	{
-	  SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+	  SET_ERROR_STRING (ERROR_REG_OVER_RANGE, reg);
 	  return -1;
 	}
     }
@@ -2453,13 +2468,13 @@ csky_get_reg_val (char *str, int *len)
       /* CK802 register range is r0-r15 & r23-r25 & r30.  */
       if ((reg > 15 && reg < 23) || (reg > 25 && reg != 30))
 	{
-	  SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+	  SET_ERROR_STRING (ERROR_REG_OVER_RANGE, reg);
 	  return -1;
 	}
     }
   else if (reg > 31 || reg < 0)
     {
-      SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+      SET_ERROR_STRING (ERROR_REG_OVER_RANGE, reg);
       return -1;
     }
 
@@ -2501,14 +2516,14 @@ is_reglist_legal (char **oper)
 
   if (reg1 == -1 || (IS_CSKY_V1 (mach_flag) && (reg1 == 0 || reg1 == 15)))
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The first reg must not be r0/r15");
       return FALSE;
     }
 
   if (**oper != '-')
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The operand format must be rx-ry");
       return FALSE;
     }
@@ -2519,7 +2534,7 @@ is_reglist_legal (char **oper)
 
   if (reg2 == -1 || (IS_CSKY_V1 (mach_flag) && reg1 == 15))
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The operand format must be r15 in C-SKY V1");
       return FALSE;
     }
@@ -2527,7 +2542,7 @@ is_reglist_legal (char **oper)
     {
       if (reg2 < reg1)
 	{
-	  SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	  SET_ERROR_STRING (ERROR_REG_FORMAT,
 			    "The operand format must be rx-ry (rx < ry)");
 	  return FALSE;
 	}
@@ -2550,14 +2565,14 @@ is_freglist_legal (char **oper)
 
   if (reg1 == -1)
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The fpu register format is not recognized.");
       return FALSE;
     }
 
   if (**oper != '-')
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The operand format must be vrx-vry/frx-fry.");
       return FALSE;
     }
@@ -2568,17 +2583,23 @@ is_freglist_legal (char **oper)
 
   if (reg2 == -1)
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The fpu register format is not recognized.");
       return FALSE;
     }
   if (reg2 < reg1)
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
 			"The operand format must be rx-ry(rx < ry)");
       return FALSE;
     }
+
   reg2 = reg2 - reg1;
+  if (reg2 > (int)0x3)
+    {
+      SET_ERROR_STRING(ERROR_REG_FORMAT, (void *)"vry-vrx is over range");
+      return FALSE;
+    }
   reg2 <<= 4;
   reg1 |= reg2;
   csky_insn.val[csky_insn.idx++] = reg1;
@@ -2599,7 +2620,7 @@ is_reglist_dash_comma_legal (char **oper, struct operand *oprnd)
       reg1 = csky_get_reg_val  (*oper, &len);
       if (reg1 == -1)
 	{
-	  SET_ERROR_NUMBER (ERROR_REG_LIST, NULL);
+	  SET_ERROR_STRING (ERROR_REG_LIST, NULL);
 	  return FALSE;
 	}
       flag |= (1 << reg1);
@@ -2610,13 +2631,13 @@ is_reglist_dash_comma_legal (char **oper, struct operand *oprnd)
 	  reg2 = csky_get_reg_val  (*oper, &len);
 	  if (reg2 == -1)
 	    {
-	      SET_ERROR_NUMBER (ERROR_REG_LIST, NULL);
+	      SET_ERROR_STRING (ERROR_REG_LIST, NULL);
 	      return FALSE;
 	    }
 	  *oper += len;
 	  if (reg1 > reg2)
 	    {
-	      SET_ERROR_NUMBER (ERROR_REG_LIST, NULL);
+	      SET_ERROR_STRING (ERROR_REG_LIST, NULL);
 	      return FALSE;
 	    }
 	  while (reg2 >= reg1)
@@ -2632,7 +2653,7 @@ is_reglist_dash_comma_legal (char **oper, struct operand *oprnd)
 #define REGLIST_BITS         0x10038ff0
   if (flag & ~(REGLIST_BITS))
     {
-      SET_ERROR_NUMBER (ERROR_REG_LIST, NULL);
+      SET_ERROR_STRING (ERROR_REG_LIST, NULL);
       return FALSE;
     }
   /* Check r4-r11.  */
@@ -2665,7 +2686,7 @@ is_reglist_dash_comma_legal (char **oper, struct operand *oprnd)
     list |= (1 << 8);
   if (oprnd->mask == OPRND_MASK_0_4 && (list & ~OPRND_MASK_0_4))
     {
-      SET_ERROR_NUMBER (ERROR_REG_LIST, NULL);
+      SET_ERROR_STRING (ERROR_REG_LIST, NULL);
       return FALSE;
     }
   csky_insn.val[csky_insn.idx++] = list;
@@ -2681,14 +2702,14 @@ is_reg_lshift_illegal (char **oper, int is_float)
   reg = csky_get_reg_val  (*oper, &len);
   if (reg == -1)
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT, "The register must be r0-r31.");
+      SET_ERROR_STRING (ERROR_REG_FORMAT, "The register must be r0-r31.");
       return FALSE;
     }
 
   *oper += len;
   if ((*oper)[0] != '<' || (*oper)[1] != '<')
     {
-      SET_ERROR_NUMBER (ERROR_UNDEFINE,
+      SET_ERROR_STRING (ERROR_UNDEFINE,
 			"Operand format error; should be (rx, ry << n)");
       return FALSE;
     }
@@ -2702,13 +2723,13 @@ is_reg_lshift_illegal (char **oper, int is_float)
       /* The immediate must be in [0, 3].  */
       if (e.X_add_number < 0 || e.X_add_number > 3)
 	{
-	  SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+	  SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
 	  return FALSE;
 	}
     }
   else
     {
-      SET_ERROR_NUMBER (ERROR_EXP_CONSTANT, NULL);
+      SET_ERROR_STRING (ERROR_EXP_CONSTANT, NULL);
       return FALSE;
     }
   if (is_float)
@@ -2721,7 +2742,31 @@ is_reg_lshift_illegal (char **oper, int is_float)
 }
 
 static bfd_boolean
-is_imm_over_range (char **oper, int min, int max, int ext)
+is_imm_within_range (char **oper, int min, int max)
+{
+  expressionS e;
+  bfd_boolean ret = FALSE;
+  char *new_oper = parse_exp (*oper, &e);
+  if (e.X_op == O_constant)
+    {
+      ret = TRUE;
+      *oper = new_oper;
+      if (e.X_add_number < min || e.X_add_number > max)
+	{
+	  ret = FALSE;
+	  SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
+	}
+      csky_insn.val[csky_insn.idx++] = e.X_add_number;
+    }
+
+  else
+    SET_ERROR_STRING(ERROR_IMM_ILLEGAL, NULL);
+
+  return ret;
+}
+
+static bfd_boolean
+is_imm_within_range_ext (char **oper, int min, int max, int ext)
 {
   expressionS e;
   bfd_boolean ret = FALSE;
@@ -2734,16 +2779,19 @@ is_imm_over_range (char **oper, int min, int max, int ext)
 	  && (e.X_add_number < min || e.X_add_number > max))
 	{
 	  ret = FALSE;
-	  SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+	  SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
 	}
       csky_insn.val[csky_insn.idx++] = e.X_add_number;
     }
 
+  else
+    SET_ERROR_STRING(ERROR_IMM_ILLEGAL, NULL);
+
   return ret;
 }
 
 static bfd_boolean
-is_oimm_over_range (char **oper, int min, int max)
+is_oimm_within_range (char **oper, int min, int max)
 {
   expressionS e;
   bfd_boolean ret = FALSE;
@@ -2755,7 +2803,7 @@ is_oimm_over_range (char **oper, int min, int max)
       if (e.X_add_number < min || e.X_add_number > max)
 	{
 	  ret = FALSE;
-	  SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+	  SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
 	}
       csky_insn.val[csky_insn.idx++] = e.X_add_number - 1;
     }
@@ -2789,7 +2837,7 @@ is_psr_bit (char **oper)
 	}
       i++;
     }
-  SET_ERROR_NUMBER (ERROR_OPCODE_PSRBIT, NULL);
+  SET_ERROR_STRING (ERROR_OPCODE_PSRBIT, NULL);
   return FALSE;
 }
 
@@ -2847,7 +2895,7 @@ parse_type_cpreg (char** oper)
 	  return TRUE;
 	}
     }
-  SET_ERROR_NUMBER (ERROR_CPREG_ILLEGAL, *oper);
+  SET_ERROR_STRING (ERROR_CPREG_ILLEGAL, *oper);
   return FALSE;
 }
 
@@ -2868,7 +2916,7 @@ parse_type_cpcreg (char** oper)
 	  return TRUE;
 	}
     }
-  SET_ERROR_NUMBER (ERROR_CPREG_ILLEGAL, *oper);
+  SET_ERROR_STRING (ERROR_CPREG_ILLEGAL, *oper);
   return FALSE;
 }
 
@@ -2880,7 +2928,7 @@ parse_type_areg (char** oper)
   i = csky_get_reg_val (*oper, &len);
   if (i == -1)
     {
-      SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL);
+      SET_ERROR_STRING (ERROR_GREG_ILLEGAL, NULL);
       return FALSE;
     }
   *oper += len;
@@ -2897,15 +2945,15 @@ parse_type_freg (char** oper, int even)
   reg = csky_get_freg_val (*oper, &len);
   if (reg == -1)
     {
-      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
-			"The fpu register format is not recognized.");
+      SET_ERROR_STRING (ERROR_REG_FORMAT,
+			(void *)"The fpu register format is not recognized.");
       return FALSE;
     }
   *oper += len;
   csky_insn.opcode_end = *oper;
   if (even && reg & 0x1)
     {
-      SET_ERROR_NUMBER (ERROR_EXP_EVEN_FREG, NULL);
+      SET_ERROR_STRING (ERROR_EXP_EVEN_FREG, NULL);
       return FALSE;
     }
   csky_insn.val[csky_insn.idx++] = reg;
@@ -2939,19 +2987,21 @@ parse_ldst_imm (char **oper, struct csky_opcode_info *op ATTRIBUTE_UNUSED,
   expressionS e;
   *oper = parse_exp (*oper, &e);
   if (e.X_op != O_constant)
+    {
     /* Not a constant.  */
+      SET_ERROR_STRING(ERROR_UNDEFINE, (void *)"Operand format is error. eg. \"ld rz, (rx, n)\"");
     return FALSE;
+    }
   else if (e.X_add_number < 0 || e.X_add_number >= max)
     {
       /* Out of range.  */
-      SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+      SET_ERROR_STRING(ERROR_IMM_OVERFLOW, NULL);
       return FALSE;
     }
   if ((e.X_add_number % (1 << shift)) != 0)
     {
       /* Not aligned.  */
-      SET_ERROR_NUMBER (ERROR_OFFSET_UNALIGNED,
-			(void *)"Operand format is error. eg. \"ld rz, (rx, n)\"");
+      SET_ERROR_INTEGER (ERROR_OFFSET_UNALIGNED, ((unsigned long)1 << shift));
       return FALSE;
     }
 
@@ -3124,7 +3174,7 @@ get_operand_value (struct csky_opcode_info *op,
 	}
       else
 	{
-	  SET_ERROR_NUMBER ((oprnd->type == OPRND_TYPE_BRACKET
+	  SET_ERROR_STRING ((oprnd->type == OPRND_TYPE_BRACKET
 			     ? ERROR_MISSING_LBRACKET
 			     : ERROR_MISSING_LANGLE_BRACKETS), NULL);
 	  return FALSE;
@@ -3145,7 +3195,7 @@ get_operand_value (struct csky_opcode_info *op,
 	*s = '\0';
       else
 	{
-	  SET_ERROR_NUMBER ((oprnd->type == OPRND_TYPE_BRACKET
+	  SET_ERROR_STRING ((oprnd->type == OPRND_TYPE_BRACKET
 			     ? ERROR_MISSING_RBRACKET
 			     : ERROR_MISSING_RANGLE_BRACKETS), NULL);
 	  return FALSE;
@@ -3158,6 +3208,12 @@ get_operand_value (struct csky_opcode_info *op,
 	}
       if (**oper == ',')
 	*oper += 1;
+      else if (**oper != '\0')
+	{
+	  SET_ERROR_STRING (ERROR_MISSING_COMMA, NULL);
+	  return FALSE;
+	}
+
       if (get_operand_value (op, oper, &soprnd->subs[1]) == FALSE)
 	{
 	  *s = rc;
@@ -3200,13 +3256,13 @@ get_operand_value (struct csky_opcode_info *op,
 
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL);
+	    SET_ERROR_STRING (ERROR_GREG_ILLEGAL, NULL);
 	    return FALSE;
 	  }
 	else if ((oprnd->type == OPRND_TYPE_GREG0_7 && reg > 7)
 		 || (oprnd->type == OPRND_TYPE_GREG0_15 && reg > 15))
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+	    SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, reg);
 	    return FALSE;
 	  }
 	*oper += len;
@@ -3223,7 +3279,7 @@ get_operand_value (struct csky_opcode_info *op,
 	    || (IS_CSKY_V1 (mach_flag)
 		&& (reg == V1_REG_SP || reg == V1_REG_LR)))
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+	    SET_ERROR_STRING (ERROR_REG_OVER_RANGE, reg);
 	    return FALSE;
 	  }
 	csky_insn.val[csky_insn.idx++] = reg;
@@ -3254,22 +3310,22 @@ get_operand_value (struct csky_opcode_info *op,
 	  csky_insn.val[csky_insn.idx++] = 0;
 	  return TRUE;
 	}
-      SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL);
+      SET_ERROR_STRING (ERROR_OPCODE_ILLEGAL, NULL);
       return FALSE;
     case OPRND_TYPE_IMM_LDST:
       return parse_ldst_imm (oper, op, oprnd);
     case OPRND_TYPE_IMM_FLDST:
       return parse_ldst_imm (oper, op, oprnd);
     case OPRND_TYPE_IMM1b:
-      return is_imm_over_range (oper, 0, 1, -1);
+      return is_imm_within_range (oper, 0, 1);
     case OPRND_TYPE_IMM2b:
-      return is_imm_over_range (oper, 0, 3, -1);
+      return is_imm_within_range (oper, 0, 3);
     case OPRND_TYPE_IMM2b_JMPIX:
       /* ck802j support jmpix16, but not support jmpix32.  */
       if (IS_CSKY_ARCH_802 (mach_flag)
 	  && (op->opcode & 0xffff0000) != 0)
 	{
-	  SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL);
+	  SET_ERROR_STRING (ERROR_OPCODE_ILLEGAL, NULL);
 	  return FALSE;
 	}
       *oper = parse_exp (*oper, &csky_insn.e1);
@@ -3278,7 +3334,7 @@ get_operand_value (struct csky_opcode_info *op,
 	  csky_insn.opcode_end = *oper;
 	  if (csky_insn.e1.X_add_number & 0x7)
 	    {
-	      SET_ERROR_NUMBER (ERROR_JMPIX_OVER_RANGE, NULL);
+	      SET_ERROR_STRING (ERROR_JMPIX_OVER_RANGE, NULL);
 	      return FALSE;
 	    }
 	  csky_insn.val[csky_insn.idx++]
@@ -3286,13 +3342,12 @@ get_operand_value (struct csky_opcode_info *op,
 	}
       return TRUE;
     case OPRND_TYPE_IMM4b:
-      return is_imm_over_range (oper, 0, 15, -1);
-      break;
+      return is_imm_within_range (oper, 0, 15);
     case OPRND_TYPE_IMM5b:
-      return is_imm_over_range (oper, 0, 31, -1);
+      return is_imm_within_range (oper, 0, 31);
       /* This type for "bgeni" in csky v1 ISA.  */
     case OPRND_TYPE_IMM5b_7_31:
-      if (is_imm_over_range (oper, 0, 31, -1))
+      if (is_imm_within_range (oper, 0, 31))
 	{
 	  int val = csky_insn.val[csky_insn.idx - 1];
 	  /* immediate values of 0 -> 6 translate to movi.  */
@@ -3309,9 +3364,9 @@ get_operand_value (struct csky_opcode_info *op,
 	return FALSE;
 
     case OPRND_TYPE_IMM5b_1_31:
-      return is_imm_over_range (oper, 1, 31, -1);
+      return is_imm_within_range (oper, 1, 31);
     case OPRND_TYPE_IMM5b_POWER:
-      if (is_imm_over_range (oper, 1, (1u << 31) - 1, 1u << 31))
+      if (is_imm_within_range_ext (oper, 1, (1u << 31) - 1, 1u << 31))
 	{
 	  int log;
 	  int val = csky_insn.val[csky_insn.idx - 1];
@@ -3324,7 +3379,7 @@ get_operand_value (struct csky_opcode_info *op,
 
       /* This type for "mgeni" in csky v1 ISA.  */
       case OPRND_TYPE_IMM5b_7_31_POWER:
-	if (is_imm_over_range (oper, 1, (1u << 31) - 1, 1u << 31))
+	if (is_imm_within_range_ext (oper, 1, (1u << 31) - 1, 1u << 31))
 	  {
 	    int log;
 	    int val = csky_insn.val[csky_insn.idx - 1];
@@ -3348,7 +3403,7 @@ get_operand_value (struct csky_opcode_info *op,
       {
 	unsigned max_shift = IS_CSKY_V1 (mach_flag) ? 31 : 32;
 
-	if (is_imm_over_range (oper, 1, max_shift, -1))
+	if (is_imm_within_range (oper, 1, max_shift))
 	  {
 	    int i = csky_insn.idx - 1;
 	    csky_insn.val[i] = 32 - csky_insn.val[i];
@@ -3361,7 +3416,7 @@ get_operand_value (struct csky_opcode_info *op,
     case OPRND_TYPE_IMM5b_BMASKI:
       /* For csky v1 bmask inst.  */
 
-      if (!is_imm_over_range (oper, 8, 31, 0))
+      if (!is_imm_within_range_ext (oper, 8, 31, 0))
 	{
 	  unsigned int mask_val = csky_insn.val[csky_insn.idx - 1];
 	  if (mask_val > 0 && mask_val < 8)
@@ -3379,7 +3434,7 @@ get_operand_value (struct csky_opcode_info *op,
 
       case OPRND_TYPE_IMM8b_BMASKI:
       /* For csky v2 bmask, which will transfer to 16bits movi.  */
-	if (is_imm_over_range (oper, 1, 8, -1))
+	if (is_imm_within_range (oper, 1, 8))
 	  {
 	    unsigned int mask_val = csky_insn.val[csky_insn.idx - 1];
 	    csky_insn.val[csky_insn.idx - 1] = (1 << mask_val) - 1;
@@ -3387,11 +3442,11 @@ get_operand_value (struct csky_opcode_info *op,
 	  }
 	return FALSE;
     case OPRND_TYPE_OIMM4b:
-      return is_oimm_over_range (oper, 1, 16);
+      return is_oimm_within_range (oper, 1, 16);
     case OPRND_TYPE_OIMM5b:
-      return is_oimm_over_range (oper, 1, 32);
+      return is_oimm_within_range (oper, 1, 32);
     case OPRND_TYPE_OIMM5b_IDLY:
-      if (is_imm_over_range (oper, 0, 32, -1))
+      if (is_imm_within_range (oper, 0, 32))
 	{
 	  /* imm5b for idly n: 0<=n<4, imm5b=3; 4<=n<=32, imm5b=n-1.  */
 	  unsigned long imm = csky_insn.val[csky_insn.idx - 1];
@@ -3409,7 +3464,7 @@ get_operand_value (struct csky_opcode_info *op,
 
       /* For csky v2 bmask inst.  */
     case OPRND_TYPE_OIMM5b_BMASKI:
-      if (!is_oimm_over_range (oper, 17, 32))
+      if (!is_oimm_within_range (oper, 17, 32))
 	{
 	  int mask_val = csky_insn.val[csky_insn.idx - 1];
 	  if (mask_val + 1 == 0)
@@ -3427,17 +3482,17 @@ get_operand_value (struct csky_opcode_info *op,
 	}
       return TRUE;
     case OPRND_TYPE_IMM7b:
-      return is_imm_over_range (oper, 0, 127, -1);
+      return is_imm_within_range (oper, 0, 127);
     case OPRND_TYPE_IMM8b:
-      return is_imm_over_range (oper, 0, 255, -1);
+      return is_imm_within_range (oper, 0, 255);
     case OPRND_TYPE_IMM12b:
-      return is_imm_over_range (oper, 0, 4095, -1);
+      return is_imm_within_range (oper, 0, 4095);
     case OPRND_TYPE_IMM15b:
-      return is_imm_over_range (oper, 0, 0xfffff, -1);
+      return is_imm_within_range (oper, 0, 0xfffff);
     case OPRND_TYPE_IMM16b:
-      return is_imm_over_range (oper, 0, 65535, -1);
+      return is_imm_within_range (oper, 0, 65535);
     case OPRND_TYPE_OIMM16b:
-      return is_oimm_over_range (oper, 1, 65536);
+      return is_oimm_within_range (oper, 1, 65536);
     case OPRND_TYPE_IMM32b:
       {
 	expressionS e;
@@ -3501,7 +3556,7 @@ get_operand_value (struct csky_opcode_info *op,
 	      ret = FALSE;
 	  }
 	if (!ret)
-	  SET_ERROR_NUMBER (ERROR_OPERANDS_ILLEGAL, csky_insn.opcode_end);
+	  SET_ERROR_STRING (ERROR_OPERANDS_ILLEGAL, csky_insn.opcode_end);
 	return ret;
       }
     case OPRND_TYPE_RM:
@@ -3541,20 +3596,20 @@ get_operand_value (struct csky_opcode_info *op,
 	int reg;
 	if (**oper != '(')
 	  {
-	    SET_ERROR_NUMBER (ERROR_MISSING_LBRACKET, NULL);
+	    SET_ERROR_STRING (ERROR_MISSING_LBRACKET, NULL);
 	    return FALSE;
 	  }
 	*oper += 1;
 	reg = csky_get_reg_val (*oper, &len);
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_EXP_GREG, NULL);
+	    SET_ERROR_STRING (ERROR_EXP_GREG, NULL);
 	    return FALSE;
 	  }
 	*oper += len;
 	if (**oper != ')')
 	  {
-	    SET_ERROR_NUMBER (ERROR_MISSING_RBRACKET, NULL);
+	    SET_ERROR_STRING (ERROR_MISSING_RBRACKET, NULL);
 	    return FALSE;
 	  }
 	*oper += 1;
@@ -3650,7 +3705,7 @@ get_operand_value (struct csky_opcode_info *op,
 	reg = csky_get_reg_val (*oper, &len);
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	    SET_ERROR_STRING (ERROR_REG_FORMAT,
 			      "The first operand must be register r1.");
 	    return FALSE;
 	  }
@@ -3668,7 +3723,7 @@ get_operand_value (struct csky_opcode_info *op,
 	reg = csky_get_reg_val (*oper, &len);
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	    SET_ERROR_STRING (ERROR_REG_FORMAT,
 			      "The second operand must be register r1.");
 	    return FALSE;
 	  }
@@ -3693,12 +3748,12 @@ get_operand_value (struct csky_opcode_info *op,
 	reg = csky_get_reg_val (*oper, &len);
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL);
+	    SET_ERROR_STRING (ERROR_GREG_ILLEGAL, NULL);
 	    return FALSE;
 	  }
 	if (reg != csky_insn.val[0])
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	    SET_ERROR_STRING (ERROR_REG_FORMAT,
 			      "The second register must be the same as the first.");
 	    return FALSE;
 	  }
@@ -3716,7 +3771,7 @@ get_operand_value (struct csky_opcode_info *op,
 	reg = csky_get_reg_val (*oper, &len);
 	if (reg == -1)
 	  {
-	    SET_ERROR_NUMBER (ERROR_GREG_ILLEGAL, NULL);
+	    SET_ERROR_STRING (ERROR_GREG_ILLEGAL, NULL);
 	    return FALSE;
 	  }
 	/* dummy reg's real type should be same with first operand.  */
@@ -3772,16 +3827,16 @@ get_operand_value (struct csky_opcode_info *op,
 	if (reg == -1)
 	  {
 	    if (max_reg == 31)
-	      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	      SET_ERROR_STRING (ERROR_REG_FORMAT,
 				"The register must be r0-r31");
 	    else
-	      SET_ERROR_NUMBER (ERROR_REG_FORMAT,
+	      SET_ERROR_STRING (ERROR_REG_FORMAT,
 				"The register must be r0-r15");
 	    return FALSE;
 	  }
 	if (reg > max_reg)
 	  {
-	    SET_ERROR_NUMBER (ERROR_REG_OVER_RANGE, reg);
+	    SET_ERROR_STRING (ERROR_REG_OVER_RANGE, reg);
 	    return FALSE;
 	  }
 	reg |= reg << shift_num;
@@ -3890,7 +3945,7 @@ get_operand_value (struct csky_opcode_info *op,
 	    *oper = new_oper;
 	    if (e.X_add_number > 31)
 	      {
-		SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+		SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
 		return FALSE;
 	      }
 	    csky_insn.val[csky_insn.idx++] = e.X_add_number;
@@ -3898,7 +3953,7 @@ get_operand_value (struct csky_opcode_info *op,
 	      {
 		if (csky_insn.val[csky_insn.idx - 1] > csky_insn.val[csky_insn.idx - 2])
 		  {
-		    SET_ERROR_NUMBER (ERROR_IMM_OVERFLOW, NULL);
+		    SET_ERROR_STRING (ERROR_IMM_OVERFLOW, NULL);
 		    return FALSE;
 		  }
 		csky_insn.val[csky_insn.idx - 2] -= e.X_add_number;
@@ -3917,7 +3972,7 @@ get_operand_value (struct csky_opcode_info *op,
 	  if (**oper == '[')
 	    {
 	      (*oper)++;
-	      if (is_imm_over_range (oper, 0, 0xf, -1))
+	      if (is_imm_within_range (oper, 0, 0xf))
 		{
 		  if (**oper == ']')
 		    {
@@ -3928,11 +3983,11 @@ get_operand_value (struct csky_opcode_info *op,
 		      return TRUE;
 		    }
 		  else
-		    SET_ERROR_NUMBER (ERROR_MISSING_RSQUARE_BRACKETS, NULL);
+		    SET_ERROR_STRING (ERROR_MISSING_RSQUARE_BRACKETS, NULL);
 		}
 	    }
 	  else
-	    SET_ERROR_NUMBER (ERROR_MISSING_LSQUARE_BRACKETS, NULL);
+	    SET_ERROR_STRING (ERROR_MISSING_LSQUARE_BRACKETS, NULL);
 	}
       return FALSE;
 
@@ -3963,7 +4018,7 @@ parse_operands_op (char *str, struct csky_opcode_info *op)
 	    || (op[i].operand_num == -1 && csky_insn.number != 0)))
 	{
 	  /* The smaller err_num is more serious.  */
-	  SET_ERROR_NUMBER (ERROR_OPERANDS_NUMBER, op[i].operand_num);
+	  SET_ERROR_INTEGER (ERROR_OPERANDS_NUMBER, op[i].operand_num);
 	  flag_pass = FALSE;
 	  continue;
 	}
@@ -3985,14 +4040,14 @@ parse_operands_op (char *str, struct csky_opcode_info *op)
 		oper++;
 	      else
 		{
-		  SET_ERROR_NUMBER (ERROR_MISSING_COMMA, NULL);
+		  SET_ERROR_STRING (ERROR_MISSING_COMMA, NULL);
 		  flag_pass = FALSE;
 		  break;
 		}
 	    }
 	  else if (!is_end_of_line[(unsigned char) *oper])
 	    {
-	      SET_ERROR_NUMBER (ERROR_BAD_END, NULL);
+	      SET_ERROR_STRING (ERROR_BAD_END, NULL);
 	      flag_pass = FALSE;
 	      break;
 	    }
@@ -4233,12 +4288,12 @@ md_assemble (char *str)
 	  return;
 	}
       else if (error_state.err_num > ERROR_OPERANDS_NUMBER)
-	SET_ERROR_NUMBER (ERROR_OPERANDS_NUMBER, csky_insn.macro->oprnd_num);
+	SET_ERROR_STRING (ERROR_OPERANDS_NUMBER, csky_insn.macro->oprnd_num);
     }
 
   if (csky_insn.opcode == NULL)
     {
-      SET_ERROR_NUMBER (ERROR_OPCODE_ILLEGAL, NULL);
+      SET_ERROR_STRING (ERROR_OPCODE_ILLEGAL, NULL);
       csky_show_error (error_state.err_num, error_state.opnum,
 		       (void *)error_state.arg1, (void *)error_state.arg1);
       return;
@@ -5551,7 +5606,7 @@ static void
 csky_idly (void)
 {
   char *s = csky_insn.opcode_end;
-  if (!is_imm_over_range (&s, 4, 4, -1))
+  if (!is_imm_within_range (&s, 4, 4))
     {
       as_bad (_("second operand must be 4"));
       return;
@@ -5571,7 +5626,7 @@ csky_rolc (void)
   s += csky_get_macro_operand (s, reg, ',');
   ++s;
 
-  if (is_imm_over_range (&s, 1, 1, -1))
+  if (is_imm_within_range (&s, 1, 1))
     {
       csky_macro_md_assemble ("addc", reg, reg, NULL);
       return;
@@ -6404,23 +6459,33 @@ v2_work_add_sub (void)
       if (csky_insn.number == 3)
 	{
 	  if (csky_insn.val[0] > 7)
-	    csky_show_error (ERROR_REG_OVER_RANGE, 1,
-			     (void *)(long)csky_insn.val[0], NULL);
+	    {
+	      SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, csky_insn.val[0]);
+	      csky_show_error (ERROR_REG_OVER_RANGE, 1, NULL, NULL);
+	    }
 	  if (csky_insn.val[1] > 7)
-	    csky_show_error (ERROR_REG_OVER_RANGE, 2,
-			     (void *)(long)csky_insn.val[1], NULL);
+	    {
+	      SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, csky_insn.val[1]);
+	      csky_show_error (ERROR_REG_OVER_RANGE, 2, NULL, NULL);
+	    }
 	  if (csky_insn.val[2] > 7)
-	    csky_show_error (ERROR_REG_OVER_RANGE, 3,
-			     (void *)(long)csky_insn.val[2], NULL);
+	    {
+	      SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, csky_insn.val[2]);
+	      csky_show_error (ERROR_REG_OVER_RANGE, 3, NULL, NULL);
+	    }
 	}
       else
 	{
 	  if (csky_insn.val[0] > 15)
-	    csky_show_error (ERROR_REG_OVER_RANGE, 1,
-			     (void *)(long)csky_insn.val[0], NULL);
+	    {
+	      SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, csky_insn.val[0]);
+	      csky_show_error (ERROR_REG_OVER_RANGE, 1, NULL, NULL);
+	    }
 	  if (csky_insn.val[1] > 15)
-	    csky_show_error (ERROR_REG_OVER_RANGE, 2,
-			     (void *)(long)csky_insn.val[1], NULL);
+	    {
+	      SET_ERROR_INTEGER (ERROR_REG_OVER_RANGE, csky_insn.val[1]);
+	      csky_show_error (ERROR_REG_OVER_RANGE, 2, NULL, NULL);
+	    }
 	}
       return FALSE;
     }
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index b6119c4..20e7ec3 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,8 @@
+2020-08-31  Cooper Qu  <cooper.qu@linux.alibaba.com>
+
+	* csky-dis.c (csky_output_operand): Assign dis_info.value for
+	OPRND_TYPE_VREG.
+
 2020-08-30  Alan Modra  <amodra@gmail.com>
 
 	* cr16-dis.c: Formatting.
diff --git a/opcodes/csky-dis.c b/opcodes/csky-dis.c
index 6becad0..09eed4b 100644
--- a/opcodes/csky-dis.c
+++ b/opcodes/csky-dis.c
@@ -342,6 +342,7 @@ csky_output_operand (char *str, struct operand const *oprnd,
       strcat (str, buf);
       break;
     case OPRND_TYPE_VREG:
+      dis_info.value = value;
       sprintf (buf, "vr%d", (int)value);
       strcat (str, buf);
       break;