diff options
Diffstat (limited to 'gas/expr.c')
| -rw-r--r-- | gas/expr.c | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -759,7 +759,7 @@ current_location (expressionp) /* In: Input_line_pointer points to 1st char of operand, which may be a space. - Out: A expressionS. + Out: An expressionS. The operand may have been empty: in this case X_op == O_absent. Input_line_pointer->(next non-blank) char after operand. */ @@ -1342,7 +1342,7 @@ operand (expressionP) /* Internal. Simplify a struct expression for use by expr (). */ -/* In: address of a expressionS. +/* In: address of an expressionS. The X_op field of the expressionS may only take certain values. Elsewise we waste time special-case testing. Sigh. Ditto SEG_ABSENT. @@ -1399,7 +1399,7 @@ clean_up_expression (expressionP) Unary operators and parenthetical expressions are treated as operands. As usual, Q==quantity==operand, O==operator, X==expression mnemonics. - We used to do a aho/ullman shift-reduce parser, but the logic got so + We used to do an aho/ullman shift-reduce parser, but the logic got so warped that I flushed it and wrote a recursive-descent parser instead. Now things are stable, would anybody like to write a fast parser? Most expressions are either register (which does not even reach here) |