diff options
Diffstat (limited to 'c_compiler/src/function.cpp')
| -rw-r--r-- | c_compiler/src/function.cpp | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/c_compiler/src/function.cpp b/c_compiler/src/function.cpp index 71a4f3f..8ce3be0 100644 --- a/c_compiler/src/function.cpp +++ b/c_compiler/src/function.cpp @@ -47,29 +47,29 @@ void Function::printXml() const printf("</Function>\n"); } -VariableStackBindings Function::printAsm(VariableStackBindings bindings, unsigned& label_count) const +VariableStackBindings Function::printAsm(VariableStackBindings bindings, int& label_count) const { VariableStackBindings original_bindings = bindings; // Counting all the variables being declared in the function - unsigned variable_count = 0; + int variable_count = 0; if(statement_ != nullptr) statement_->countVariables(variable_count); - unsigned max_argument_count = 0; + int max_argument_count = 0; // Count the maximum number of arguments statement_->countArguments(max_argument_count); - unsigned max_depth = 0; + int max_depth = 0; statement_->countExpressionDepth(max_depth); if(max_argument_count < 4) max_argument_count = 4; - unsigned parameter_count = 0; + int parameter_count = 0; countParameters(parameter_count); // This adds 2 to store the frame pointer and the return address - unsigned memory_needed = 4*(variable_count+max_argument_count+max_depth+2); + int memory_needed = 4*(variable_count+max_argument_count+max_depth+2); // make frame double word aligned if(memory_needed % 8 != 0) @@ -94,7 +94,7 @@ VariableStackBindings Function::printAsm(VariableStackBindings bindings, unsigne return original_bindings; } -void Function::printParameterAsm(VariableStackBindings& bindings, unsigned& frame_offset) const +void Function::printParameterAsm(VariableStackBindings& bindings, int& frame_offset) const { std::vector<DeclarationPtr> parameter_vector; DeclarationPtr parameter_list = parameter_list_; @@ -107,14 +107,33 @@ void Function::printParameterAsm(VariableStackBindings& bindings, unsigned& fram for(auto itr = parameter_vector.rbegin(); itr != parameter_vector.rend(); ++itr) { - unsigned i = itr-parameter_vector.rbegin(); + int i = itr-parameter_vector.rbegin(); bindings.insertBinding((*itr)->getId(), (*itr)->getType(), i*4+frame_offset); + TypePtr parameter_type = (*itr)->getType(); if(i < 4) - printf("\tsw\t$%d,%d($fp)\n", 4+i, i*4+frame_offset); + { + parameter_type->store(4+i, 4*i+frame_offset); + } + else + { + if(std::dynamic_pointer_cast<TypeContainer>(parameter_type) != nullptr) + { + if(std::dynamic_pointer_cast<Char>(parameter_type->type()) != nullptr) + { + printf("\tlw\t$2,%d($fp)\n", i*4+frame_offset); + printf("\tsb\t$2,%d($fp)\n", i*4+frame_offset); + } + else if(std::dynamic_pointer_cast<Short>(parameter_type->type()) != nullptr) + { + printf("\tlw\t$2,%d($fp)\n", i*4+frame_offset); + printf("\tsh\t$2,%d($fp)\n", i*4+frame_offset); + } + } + } } } -void Function::countParameters(unsigned& parameter_count) const +void Function::countParameters(int& parameter_count) const { DeclarationPtr parameter_list = parameter_list_; |