* expr.c (operand): Add support for n.nn flonums.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index bf01a71..d0a3827 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2002-10-18  Svein E. Seldal  <Svein.Seldal@solidas.com>
+
+       * expr.c (operand): Add support for n.nn flonums.
+
 2002-10-17  Johannes Stezenbach  <js@convergence.de>
 
        * itbl-parse.y (entry): Provide empty action.

diff --git a/gas/expr.c b/gas/expr.c
index 68c4a78..6478887 100644 (file)
--- a/gas/expr.c
+++ b/gas/expr.c
@@ -78,8 +78,8 @@ make_expr_symbol (expressionP)
   if (expressionP->X_op == O_big)
     {
       /* This won't work, because the actual value is stored in
-         generic_floating_point_number or generic_bignum, and we are
-         going to lose it if we haven't already.  */
+        generic_floating_point_number or generic_bignum, and we are
+        going to lose it if we haven't already.  */
       if (expressionP->X_add_number > 0)
        as_bad (_("bignum invalid"));
       else
@@ -329,8 +329,8 @@ integer_constant (radix, expressionP)
       int flt = 0;
 
       /* In MRI mode, the number may have a suffix indicating the
-         radix.  For that matter, it might actually be a floating
-         point constant.  */
+        radix.  For that matter, it might actually be a floating
+        point constant.  */
       for (suffix = input_line_pointer; ISALNUM (*suffix); suffix++)
        {
          if (*suffix == 'e' || *suffix == 'E')
@@ -401,7 +401,7 @@ integer_constant (radix, expressionP)
   if (radix == 16 && c == '_')
     {
       /* This is literal of the form 0x333_0_12345678_1.
-         This example is equivalent to 0x00000333000000001234567800000001.  */
+        This example is equivalent to 0x00000333000000001234567800000001.  */
 
       int num_little_digits = 0;
       int i;
@@ -681,8 +681,8 @@ mri_char_constant (expressionP)
       if (i < SIZE_OF_LARGE_NUMBER - 1)
        {
          /* If there is more than one littlenum, left justify the
-             last one to make it match the earlier ones.  If there is
-             only one, we can just use the value directly.  */
+            last one to make it match the earlier ones.  If there is
+            only one, we can just use the value directly.  */
          for (; j < CHARS_PER_LITTLENUM; j++)
            generic_bignum[i] <<= 8;
        }
@@ -828,10 +828,10 @@ operand (expressionP)
        {
          char *s;
 
-         /* Check for a hex constant.  */
+         /* Check for a hex or float constant.  */
          for (s = input_line_pointer; hex_p (*s); s++)
            ;
-         if (*s == 'h' || *s == 'H')
+         if (*s == 'h' || *s == 'H' || *input_line_pointer == '.')
            {
              --input_line_pointer;
              integer_constant (0, expressionP);
@@ -1079,6 +1079,18 @@ operand (expressionP)
            else
              expressionP->X_add_number = ! expressionP->X_add_number;
          }
+       else if (expressionP->X_op == O_big
+                && expressionP->X_add_number <= 0
+                && c == '-'
+                && (generic_floating_point_number.sign == '+'
+                    || generic_floating_point_number.sign == 'P'))
+         {
+           /* Negative flonum (eg, -1.000e0).  */
+           if (generic_floating_point_number.sign == '+')
+             generic_floating_point_number.sign = '-';
+           else
+             generic_floating_point_number.sign = 'N';
+         }
        else if (expressionP->X_op != O_illegal
                 && expressionP->X_op != O_absent)
          {
@@ -1100,7 +1112,7 @@ operand (expressionP)
 #if defined (DOLLAR_DOT) || defined (TC_M68K)
     case '$':
       /* '$' is the program counter when in MRI mode, or when
-         DOLLAR_DOT is defined.  */
+        DOLLAR_DOT is defined.  */
 #ifndef DOLLAR_DOT
       if (! flag_m68k_mri)
        goto de_fault;
@@ -1108,7 +1120,7 @@ operand (expressionP)
       if (flag_m68k_mri && hex_p (*input_line_pointer))
        {
          /* In MRI mode, '$' is also used as the prefix for a
-             hexadecimal constant.  */
+            hexadecimal constant.  */
          integer_constant (16, expressionP);
          break;
        }
@@ -1199,7 +1211,7 @@ operand (expressionP)
        goto de_fault;
 
       /* In MRI mode, this is a floating point constant represented
-         using hexadecimal digits.  */
+        using hexadecimal digits.  */
 
       ++input_line_pointer;
       integer_constant (16, expressionP);
@@ -1227,9 +1239,9 @@ operand (expressionP)
 
 #ifdef md_parse_name
          /* This is a hook for the backend to parse certain names
-             specially in certain contexts.  If a name always has a
-             specific value, it can often be handled by simply
-             entering it in the symbol table.  */
+            specially in certain contexts.  If a name always has a
+            specific value, it can often be handled by simply
+            entering it in the symbol table.  */
          if (md_parse_name (name, expressionP, &c))
            {
              *input_line_pointer = c;
@@ -1775,7 +1787,7 @@ expr (rankarg, resultP)
            case O_left_shift:          resultP->X_add_number <<= v; break;
            case O_right_shift:
              /* We always use unsigned shifts, to avoid relying on
-                 characteristics of the compiler used to compile gas.  */
+                characteristics of the compiler used to compile gas.  */
              resultP->X_add_number =
                (offsetT) ((valueT) resultP->X_add_number >> (valueT) v);
              break;