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rgbasm: Fix a division by zero in section address specifiers.

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Anthony J. Bentley
2015-01-27 04:56:42 -07:00
parent e3a31d7e59
commit a3e95f99d2
1 changed files with 10 additions and 2 deletions
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12
src/asm/asmy.y
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@@ -992,8 +992,16 @@ const : T_ID { $$ = sym_GetConstantValue($1); }
| const T_OP_SHL const { $$ = $1 << $3; }
| const T_OP_SHR const { $$ = $1 >> $3; }
| const T_OP_MUL const { $$ = $1 * $3; }
| const T_OP_DIV const { $$ = $1 / $3; }
| const T_OP_MOD const { $$ = $1 % $3; }
| const T_OP_DIV const {
if ($3 == 0)
fatalerror("division by zero");
$$ = $1 / $3;
}
| const T_OP_MOD const {
if ($3 == 0)
fatalerror("division by zero");
$$ = $1 % 3;
}
| T_OP_ADD const %prec NEG { $$ = +$2; }
| T_OP_SUB const %prec NEG { $$ = -$2; }
| T_OP_NOT const %prec NEG { $$ = 0xFFFFFFFF^$2; }