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

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Alan Modra 2002-10-18 01:56:39 +00:00
parent 08e299623d
commit 0200099915
2 changed files with 32 additions and 16 deletions
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4
gas/ChangeLog
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@ -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.

44
gas/expr.c
View File

@ -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;