add missing decompiler opcodes

This commit is contained in:
xensik 2021-11-16 15:06:56 +01:00
parent 996780ba28
commit dc6d1d5231
9 changed files with 205 additions and 2 deletions

View File

@ -1650,6 +1650,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1650,6 +1650,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1644,6 +1644,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");
@ -2038,6 +2048,8 @@ void decompiler::decompile_search_ifelse(const gsc::stmt_list_ptr& block)
if(stmt.as_node->type == gsc::node_t::asm_jump_cond)
{
std::uint32_t end;
auto last_loc = blocks_.back().loc_end;
if(stmt.as_cond->value == blocks_.back().loc_end)
{
end = block->stmts.size() - 1;
@ -2046,8 +2058,119 @@ void decompiler::decompile_search_ifelse(const gsc::stmt_list_ptr& block)
{
end = find_location_index(block, stmt.as_cond->value) - 1;
}
auto last_loc = blocks_.back().loc_end;
/*
// normal block
if(blocks_.back().loc_break == "" && blocks_.back().loc_continue == "")
{
if(block->stmts.at(end).as_node->type == gsc::node_t::asm_jump)
{
normal_block: if(block->stmts.at(end).as_jump->value == stmt.as_cond->value)
{
// check if inside there is another if that jumps to cond->value
bool checked = false;
for(auto j = index + 1; j < end; j++)
{
auto& stmt2 = block->stmts.at(j);
if(stmt2.as_node->type == gsc::node_t::asm_jump_cond)
{
auto value = stmt2.as_cond->value;
if(std::stoi(value.substr(4), 0, 16) > block->stmts.at(end).as_jump->loc.begin.line)
{
checked = true;
}
}
}
if(checked)
{
// if with if/else inside with empty else
decompile_if(block, index, end);
}
else
{
// if/else with empty else
decompile_ifelse(block, index, end);
}
}
else
{
// normal if/else not empty
decompile_ifelse(block, index, end);
}
}
else if(block->stmts.at(end).as_node->type == gsc::node_t::stmt_return
&& block->stmts.at(end).as_return->expr.as_node->type == gsc::node_t::null)
{
if(end - index == 1)
{
decompile_if(block, index, end); // only one explicit return
}
else if(block->stmts.back().as_node->type != gsc::node_t::stmt_return)
{
decompile_if(block, index, end); // block end is not a last return
}
else if(blocks_.back().is_last && block->stmts.back().as_node->type != gsc::node_t::stmt_return)
{
decompile_if(block, index, end); // inside a last block but is not and inner last
}
else if(find_location_reference(block, end, block->stmts.size(), last_loc))
{
decompile_if(block, index, end); // reference to func end after the if
}
else if(blocks_.size() > 1 && !blocks_.back().is_last)
{
decompile_if(block, index, end); // fake last ifelse
}
else
{
decompile_last_ifelse(block, index, end); // special case
}
}
else
{
decompile_if(block, index, end);
}
}
else // loop block
{
if(block->stmts.at(end).as_node->type == gsc::node_t::asm_jump)
{
// if block is a loop check break, continue
if(block->stmts.at(end).as_jump->value == blocks_.back().loc_continue)
{
if(end - index == 1)
{
decompile_if(block, index, end);
}
else
{
decompile_ifelse(block, index, end);
}
}
else if(block->stmts.at(end).as_jump->value == blocks_.back().loc_break)
{
decompile_if(block, index, end);
}
else if(block->stmts.at(end).as_jump->value == blocks_.back().loc_end)
{
decompile_ifelse(block, index, end);
}
else
{
goto normal_block;
}
}
else if(block->stmts.at(end).as_node->type == gsc::node_t::stmt_return
&& block->stmts.at(end).as_return->expr.as_node->type == gsc::node_t::null)
{
decompile_if(block, index, end);
}
else
{
decompile_if(block, index, end);
}
}
*/
if(block->stmts.at(end).as_node->type == gsc::node_t::asm_jump)
{

View File

@ -1644,6 +1644,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1644,6 +1644,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1651,6 +1651,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1650,6 +1650,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1650,6 +1650,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");

View File

@ -1651,6 +1651,16 @@ void decompiler::decompile_statements(const gsc::function_ptr& func)
}
}
break;
case opcode::OP_SafeSetVariableFieldCached0:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_0"));
}
break;
case opcode::OP_SafeSetVariableFieldCached:
{
func_->params->list.push_back(std::make_unique<gsc::node_name>(loc, "var_" + inst->data[0]));
}
break;
case opcode::OP_EvalLocalVariableRefCached0:
{
auto node = std::make_unique<gsc::node_asm_access>(loc, "0");