struct process_parameter_results process_parameter(struct ast_node_parameter* param)
{
struct process_parameter_results result;
result.v = 0x0;
result.v_extra = 0x0;
result.v_extra_used = false;
result.v_label = NULL;
result.v_label_bracketed = false;
result.v_raw = NULL;
printd(LEVEL_VERBOSE, " ");
switch (param->type)
{
case type_address:
return process_address(param->address);
case type_register:
return process_register(param->registr);
case type_raw:
result.v_raw = param->raw;
break;
default:
assert(false);
}
return result;
}
struct process_parameter_results process_parameter(struct ast_node_parameter* param)
{
struct process_parameter_results result;
result.v = 0x0;
result.v_extra = 0x0;
result.v_extra_used = false;
result.v_label = NULL;
result.v_label_bracketed = false;
result.v_raw = NULL;
fprintf(stderr, " ");
switch (param->type)
{
case type_address:
return process_address(param->address);
case type_register:
return process_register(param->registr);
case type_raw:
result.v_raw = param->raw;
}
return result;
}
struct process_parameter_results process_address(struct ast_node_address* param)
{
struct process_parameter_results result;
struct register_mapping* registr;
bstring btmp = NULL;
result.v_raw = NULL;
if (param->value != NULL)
btmp = expr_representation(param->value);
if (param->bracketed && param->added)
{
// This is of the form [0x1000+I].
registr = get_register_by_name_next(param->addcmpt);
if (registr == NULL)
{
// Attempt to use a label in square brackets. Convert this
// to an expression and then reinvoke ourselves with the
// evaluated value.
param->value = expr_new(expr_new_label(bautofree(bfromcstr(param->addcmpt))), EXPR_OP_ADD, param->value);
param->addcmpt = "";
param->added = 0;
param->bracketed = 0;
bdestroy(btmp);
return process_address(param);
}
else if (registr->value == VALUE_NEXT_UNSUPPORTED)
{
// Attempt to use a register in brackets that can't be.
printd(LEVEL_VERBOSE, "\n");
dhalt(ERR_NEXTED_REGISTER_UNSUPPORTED, param->addcmpt);
}
printd(LEVEL_VERBOSE, "[%s+%s]", btmp->data, registr->name);
result.v = registr->value;
result.v_extra = param->value;
result.v_extra_used = true;
result.v_label = NULL;
}
else
{
// This is either the form 0x1000 or [0x1000].
if (param->bracketed)
{
printd(LEVEL_VERBOSE, "[%s]", btmp->data);
result.v = NXT;
}
else
{
printd(LEVEL_VERBOSE, "%s", btmp->data);
result.v = NXT_LIT;
}
result.v_extra = param->value;
result.v_extra_used = true;
result.v_label = NULL;
}
if (btmp != NULL)
bdestroy(btmp);
return result;
}
