public void CALL_Test()
{
ushort testOpcode = 0x2111;
memory.opcode = testOpcode;
memory.SP = 0;
memory.PC = testOpcode;
instructions.CALL();
Assert.AreEqual(1, memory.SP, 0, "Did not properly increment SP");
Assert.AreEqual(testOpcode, memory.stack[memory.SP], 0, "Did not properly store current opcode");
Assert.AreEqual(0x0111, memory.PC, 0, "Did not properly set PC to input value");
}
