Convert int to binary string pseudocode

integer SomeValue

integer ValueToCheck = 1;

while(SomeValue > ValueToCheck)
    ValueToCheck = ValueToCheck * 2

String SomeValueInBinary = ""

while(SomeValue < 0)
{
    if(SomeValue >= ValueToCheck)
    {
        SomeValueInBinary = SomeValueInBinary + "1"
        SomeValue = SomeValue - ValueToCheck
    }
    else
        SomeValueInBinary = SomeValueInBinary + "0"

    ValueToCheck = ValueToCheck / 2
}