Emul8.Peripherals.Memory.MappedMemory.PrepareSegments C# (CSharp) Method

        private void PrepareSegments()
        {
            if(segments != null)
            {
                // this is because in case of loading the starting memory snapshot
                // after deserialization (i.e. resetting after deserialization)
                // memory segments would have been lost
                return;
            }
            // how many segments we need?			
            var segmentsNo = size / SegmentSize + (size % SegmentSize != 0 ? 1 : 0);
            this.NoisyLog(string.Format("Preparing {0} segments for {1} bytes of memory, each {2} bytes long.",
                segmentsNo, size, SegmentSize));
            segments = new IntPtr[segmentsNo];
            originalPointers = new IntPtr[segmentsNo];
            // segments are not allocated until they are used by read, write, load etc (or touched)
            describedSegments = new IMappedSegment[segmentsNo];
            for(var i = 0; i < describedSegments.Length - 1; i++)
            {
                describedSegments[i] = new MappedSegment(this, i, (uint)SegmentSize);
            }
            var last = describedSegments.Length - 1;
            var sizeOfLast = size % (uint)SegmentSize;
            if(sizeOfLast == 0)
            {
                sizeOfLast = (uint)SegmentSize;
            }
            describedSegments[last] = new MappedSegment(this, last, sizeOfLast);
        }