vgbc/tests/memory/test_memory_register.cpp

#include "doctest.h"

#include <cpu/cpu.h>
#include <memory/bus.h>
#include <memory/ram.h>
#include <memory/register.h>

TEST_CASE("IE controllable via bus")
{
  u8 test_ram[] = {
    0x3E, 0xA5, // LD A, $0xA5
    0xE0, 0xFF, // LDH [FF:FF], A
  };

  Bus b;
  Cpu cpu(&b);

  b.map_device(0x0000, 0x0004, new RAM(test_ram, 0x4, true));
  b.map_device(0xFFFF, 0xFFFF, new BoundRegister(cpu.state.IE));

  cpu.step();
  cpu.step();

  CHECK(cpu.state.IE == 0xA5);
}