vmdevirt/src/lifters/add.cpp

#include <vm_lifters.hpp>

namespace vmp2::lifters
{
    lifter_callback_t addq = [ & ]( vm::vmp_rtn_t *rtn, const vm::instrs::code_block_t &vm_code_block,
                                    const vm::instrs::virt_instr_t &vinstr, llvm::IRBuilder<> *ir_builder ) {
        auto t1 = rtn->pop( 8 );
        auto t2 = rtn->pop( 8 );
        auto t3 = ir_builder->CreateAdd( t1, t2 );
        rtn->push( 8, t3 );

        // TODO: compute and update RFLAGS...
        // do the updating here on rtn->flags before we push it...
        //
        //

        rtn->push( 8, rtn->load_value( 8, rtn->flags ) );
    };

    lifter_callback_t adddw = [ & ]( vm::vmp_rtn_t *rtn, const vm::instrs::code_block_t &vm_code_block,
                                     const vm::instrs::virt_instr_t &vinstr, llvm::IRBuilder<> *ir_builder ) {
        auto t1 = rtn->pop( 4 );
        auto t2 = rtn->pop( 4 );
        auto t3 = ir_builder->CreateAdd( t1, t2 );
        rtn->push( 4, t3 );

        // TODO: compute and update RFLAGS...
        // do the updating here on rtn->flags before we push it...
        //
        //

        rtn->push( 8, rtn->load_value( 8, rtn->flags ) );
    };

    lifter_callback_t addw = [ & ]( vm::vmp_rtn_t *rtn, const vm::instrs::code_block_t &vm_code_block,
                                    const vm::instrs::virt_instr_t &vinstr, llvm::IRBuilder<> *ir_builder ) {
        auto t1 = rtn->pop( 2 );
        auto t2 = rtn->pop( 2 );
        auto t3 = ir_builder->CreateAdd( t1, t2 );
        rtn->push( 2, t3 );

        // TODO: compute and update RFLAGS...
        // do the updating here on rtn->flags before we push it...
        //
        //

        rtn->push( 8, rtn->load_value( 8, rtn->flags ) );
    };

} // namespace vmp2::lifters