本文整理汇总了C++中status::unlock_arg_registers方法的典型用法代码示例。如果您正苦于以下问题:C++ status::unlock_arg_registers方法的具体用法?C++ status::unlock_arg_registers怎么用?C++ status::unlock_arg_registers使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类status
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在下文中一共展示了status::unlock_arg_registers方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: code_gen
void n_func_call::code_gen(status& stat, std::ostream& out)
{
// first, save the current return address in preallocated space.
out << "\tsw\t$ra,-8($fp)\n";
// next, push argument registers/temp registers in use on the stack.
stat.push_registers(out);
// next, load arguments into registers/stack.
right->code_gen(stat, out);
// next, call the function
std::stringstream id;
left->print(id);
out << "\t.option pic0\n"; // pic = position independent code
out << "\tjal\t" << id.str() << "\n";
out << "\tnop\n";
out << "\t.option pic2\n"; // would I be honest if I said I knew what these meant? no.
// next, pop arguments 4+ off the stack.
stat.unlock_arg_registers(out);
// store return value in preallocated register:
/***ASSUMING INT RETURN!!!!****/
if (stat.get_register() >= 0)
out << "\tmove\t$t" << stat.get_register() << ",$v0\n";
// next, pop argument registers back off the stack.
stat.pop_registers(out);
// finally, reload return address.
out << "\tlw\t$ra,-8($fp)\n";
return;
}