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diff lwasm/main.c @ 249:1f1a28b797e1
Add trap for divide by zero in expression library
Added a trap for division by zero in the expression library and adjusted
lwasm to use it and report division by zero errors instead of crashing with
a cryptic "arithmetic exception" or even more mysterious "floating point
exception".
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Fri, 25 Jan 2013 21:48:01 -0700 |
| parents | 164487152dd9 |
| children | 49010c6653e7 |
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--- a/lwasm/main.c Thu Jan 24 21:24:32 2013 -0700 +++ b/lwasm/main.c Fri Jan 25 21:48:01 2013 -0700 @@ -222,6 +222,7 @@ extern lw_expr_t lwasm_evaluate_special(int t, void *ptr, void *priv); extern lw_expr_t lwasm_evaluate_var(char *var, void *priv); extern lw_expr_t lwasm_parse_term(char **p, void *priv); +extern void lwasm_dividezero(void *priv); struct passlist_s { @@ -251,6 +252,7 @@ lw_expr_set_special_handler(lwasm_evaluate_special); lw_expr_set_var_handler(lwasm_evaluate_var); lw_expr_set_term_parser(lwasm_parse_term); + lw_expr_setdivzero(lwasm_dividezero); /* initialize assembler state */ asmstate.include_list = lw_stringlist_create();