/* expr.c -operands, expressions-
- Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
+ Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
static void current_location PARAMS ((expressionS *));
static void clean_up_expression PARAMS ((expressionS * expressionP));
static segT operand PARAMS ((expressionS *));
-static operatorT operator PARAMS ((void));
+static operatorT operator PARAMS ((int *));
extern const char EXP_CHARS[], FLT_CHARS[];
/* We keep a mapping of expression symbols to file positions, so that
we can provide better error messages. */
-struct expr_symbol_line
-{
+struct expr_symbol_line {
struct expr_symbol_line *next;
symbolS *sym;
char *file;
symbol_set_value_expression (symbolP, expressionP);
if (expressionP->X_op == O_constant)
- resolve_symbol_value (symbolP, 1);
+ resolve_symbol_value (symbolP, finalize_syms);
n = (struct expr_symbol_line *) xmalloc (sizeof *n);
n->sym = symbolP;
and never write into the early words, thus they'll always be zero.
I hate Dean's floating-point code. Bleh. */
LITTLENUM_TYPE generic_bignum[SIZE_OF_LARGE_NUMBER + 6];
-FLONUM_TYPE generic_floating_point_number =
-{
+
+FLONUM_TYPE generic_floating_point_number = {
&generic_bignum[6], /* low. (JF: Was 0) */
&generic_bignum[SIZE_OF_LARGE_NUMBER + 6 - 1], /* high. JF: (added +6) */
0, /* leader. */
input_line_pointer++;
floating_constant (expressionP);
expressionP->X_add_number =
- -(isupper ((unsigned char) c) ? tolower (c) : c);
+ - (isupper ((unsigned char) c) ? tolower (c) : c);
}
else
{
input_line_pointer++;
floating_constant (expressionP);
expressionP->X_add_number =
- -(isupper ((unsigned char) c) ? tolower (c) : c);
+ - (isupper ((unsigned char) c) ? tolower (c) : c);
break;
case '$':
/* input_line_pointer -> char after operand. */
if (c == '-')
{
- expressionP->X_add_number = -expressionP->X_add_number;
+ expressionP->X_add_number = - expressionP->X_add_number;
/* Notice: '-' may overflow: no warning is given.
This is compatible with other people's
assemblers. Sigh. */
{
/* Let the target try to parse it. Success is indicated by changing
the X_op field to something other than O_absent and pointing
- input_line_pointer passed the expression. If it can't parse the
+ input_line_pointer past the expression. If it can't parse the
expression, X_op and input_line_pointer should be unchanged. */
expressionP->X_op = O_absent;
--input_line_pointer;
#undef __
#define __ O_illegal
-static const operatorT op_encoding[256] =
-{ /* Maps ASCII -> operators. */
-
+/* Maps ASCII -> operators. */
+static const operatorT op_encoding[256] = {
__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __,
__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __,
7 * / % << >>
8 unary - unary ~
*/
-static operator_rankT op_rank[] =
-{
+static operator_rankT op_rank[] = {
0, /* O_illegal */
0, /* O_absent */
0, /* O_constant */
0, /* O_symbol */
0, /* O_symbol_rva */
0, /* O_register */
- 0, /* O_bit */
+ 0, /* O_big */
9, /* O_uminus */
9, /* O_bit_not */
9, /* O_logical_not */
mode. Also, MRI uses a different bit_not operator, and this fixes
that as well. */
-#define STANDARD_MUL_PRECEDENCE (7)
-#define MRI_MUL_PRECEDENCE (5)
+#define STANDARD_MUL_PRECEDENCE 8
+#define MRI_MUL_PRECEDENCE 6
void
expr_set_precedence ()
}
}
\f
-/* Return the encoding for the operator at INPUT_LINE_POINTER.
- Advance INPUT_LINE_POINTER to the last character in the operator
- (i.e., don't change it for a single character operator). */
+/* Return the encoding for the operator at INPUT_LINE_POINTER, and
+ sets NUM_CHARS to the number of characters in the operator.
+ Does not advance INPUT_LINE_POINTER. */
static inline operatorT
-operator ()
+operator (num_chars)
+ int *num_chars;
{
int c;
operatorT ret;
c = *input_line_pointer & 0xff;
+ *num_chars = 1;
if (is_end_of_line[c])
return O_illegal;
ret = O_le;
break;
}
- ++input_line_pointer;
+ *num_chars = 2;
return ret;
case '=':
if (input_line_pointer[1] != '=')
return op_encoding[c];
- ++input_line_pointer;
+ *num_chars = 2;
return O_eq;
case '>':
ret = O_ge;
break;
}
- ++input_line_pointer;
+ *num_chars = 2;
return ret;
case '!':
return O_bit_inclusive_or;
return op_encoding[c];
}
- ++input_line_pointer;
+ *num_chars = 2;
return O_bit_exclusive_or;
case '|':
if (input_line_pointer[1] != '|')
return op_encoding[c];
- ++input_line_pointer;
+ *num_chars = 2;
return O_logical_or;
case '&':
if (input_line_pointer[1] != '&')
return op_encoding[c];
- ++input_line_pointer;
+ *num_chars = 2;
return O_logical_and;
}
expressionS right;
operatorT op_left;
operatorT op_right;
+ int op_chars;
know (rank >= 0);
/* operand () gobbles spaces. */
know (*input_line_pointer != ' ');
- op_left = operator ();
+ op_left = operator (&op_chars);
while (op_left != O_illegal && op_rank[(int) op_left] > rank)
{
segT rightseg;
- input_line_pointer++; /* -> after 1st character of operator. */
+ input_line_pointer += op_chars; /* -> after operator. */
rightseg = expr (op_rank[(int) op_left], &right);
if (right.X_op == O_absent)
)
as_bad (_("operation combines symbols in different segments"));
- op_right = operator ();
+ op_right = operator (&op_chars);
know (op_right == O_illegal
|| op_rank[(int) op_right] <= op_rank[(int) op_left]);
case O_subtract: resultP->X_add_number -= v; break;
case O_eq:
resultP->X_add_number =
- resultP->X_add_number == v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number == v ? ~ (offsetT) 0 : 0;
break;
case O_ne:
resultP->X_add_number =
- resultP->X_add_number != v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number != v ? ~ (offsetT) 0 : 0;
break;
case O_lt:
resultP->X_add_number =
- resultP->X_add_number < v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number < v ? ~ (offsetT) 0 : 0;
break;
case O_le:
resultP->X_add_number =
- resultP->X_add_number <= v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number <= v ? ~ (offsetT) 0 : 0;
break;
case O_ge:
resultP->X_add_number =
- resultP->X_add_number >= v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number >= v ? ~ (offsetT) 0 : 0;
break;
case O_gt:
resultP->X_add_number =
- resultP->X_add_number > v ? ~(offsetT) 0 : 0;
+ resultP->X_add_number > v ? ~ (offsetT) 0 : 0;
break;
case O_logical_and:
resultP->X_add_number = resultP->X_add_number && v;
projects / deliverable / binutils-gdb.git / blobdiff