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#include "neg.h"

#include "codes.h"

#include <asm/assembler.h>
#include <asm/operators.h>

using namespace std::string_literals;

Op_neg::Op_neg(const Asm::Args& args)
{
 if (args[0].type() == typeid(Asm::Args::Register8)) { // neg reg8
  machine_code = std::vector<uint8_t>{ 0xF6 } + ModRM("/3", std::any_cast<Asm::Args::Register8>(args[0]).name());

 } else if (args[0].type() == typeid(Asm::Args::Register32)) { // neg reg32
  machine_code = std::vector<uint8_t>{ 0xF7 } + ModRM("/3", std::any_cast<Asm::Args::Register32>(args[0]).name());

 } else if (args[0].type() == typeid(Asm::Args::Register64)) { // neg reg64
  machine_code = REX("W") + std::vector<uint8_t>{ 0xF7 } + ModRM("/3", std::any_cast<Asm::Args::Register32>(args[0]).name());

 } else if (args[0].type() == typeid(Asm::Args::Mem8Ptr64)) { // neg byte ptr [reg64]
  machine_code = std::vector<uint8_t>{ 0xF6 } + ModRM("/3", std::any_cast<Asm::Args::Register8>(args[0]).name());

 } else if (args[0].type() == typeid(Asm::Args::Mem32Ptr64)) { // neg dword ptr [reg64]
  machine_code = std::vector<uint8_t>{ 0xF7 } + ModRM("/3", std::any_cast<Asm::Args::Register32>(args[0]).name());

 } else if (args[0].type() == typeid(Asm::Args::Mem64Ptr64)) { // neg qword ptr [reg64]
  machine_code = REX("W") + std::vector<uint8_t>{ 0xF7 } + ModRM("/3", std::any_cast<Asm::Args::Register32>(args[0]).name());

 } else {
  throw std::runtime_error("Unimplemented: neg "s + args[0].type().name() + " "s + args[1].type().name());
 }
}

namespace {

bool registered {
 registerOp(mangleName<Asm::Args::Register8>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             }) &&
 registerOp(mangleName<Asm::Args::Register32>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             }) &&
 registerOp(mangleName<Asm::Args::Register64>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             }) &&
 registerOp(mangleName<Asm::Args::Mem8Ptr64>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             }) &&
 registerOp(mangleName<Asm::Args::Mem32Ptr64>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             }) &&
 registerOp(mangleName<Asm::Args::Mem64Ptr64>("neg"), [](const Asm::Args& args) -> std::shared_ptr<Op>{
                             return std::make_shared<Op_neg>(args);
                             })
};

}