#include "doctest.h"

#include "cpu/cpu.h"
#include "memory/ram.h"

TEST_CASE("Bit set, clear and test")
{
  u8 test_ram[] = {
    0xCB, 0xD7, // SET 2, A
    0xCB, 0x57, // BIT 2, A
    0xCB, 0x97, // RES 2, A
    0xCB, 0x57, // BIT 2, A
  };
  RAM r(test_ram, 0x8, true);
  Cpu cpu(&r);

  CHECK(cpu.state.PC == 0x00);
  CHECK(cpu.state.A == 0b00000000);

  cpu.step();

  CHECK(cpu.state.PC == 0x02);
  CHECK(cpu.state.A == 0b00000100);

  cpu.step();

  CHECK(cpu.state.PC == 0x04);
  CHECK(!cpu.state.zero);

  cpu.step();

  CHECK(cpu.state.PC == 0x06);
  CHECK(cpu.state.A == 0b00000000);

  cpu.step();

  CHECK(cpu.state.PC == 0x08);
  CHECK(cpu.state.zero);
}