1. First steps in Reaktor Core - Native Instruments
1. First steps in Reaktor Core - Native Instruments
1. First steps in Reaktor Core - Native Instruments
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Normal float<strong>in</strong>g po<strong>in</strong>t signals of 32 and 64 bit precision are fully compatible<br />
with each other and can be freely <strong>in</strong>terconnected. OBC signals<br />
of different precision are not compatible with each other (because you<br />
cannot have storage that is simultaneously 32 and 64 bit). Also, for<br />
OBC signals ‘default’, ’32 bit’ and ’64 bit’ sett<strong>in</strong>gs are all considered<br />
different and <strong>in</strong>compatible, because the effective default precision can<br />
be changed by chang<strong>in</strong>g the properties of one of the own<strong>in</strong>g macros.<br />
The <strong>in</strong>put and output modules of top-level structures of core cells always<br />
send and receive 32 bit floats, because that is the type of the signal<br />
used for <strong>Reaktor</strong> primary-level event and audio connections.<br />
7.2. Integer signals<br />
There is another data type commonly supported by modern CPUs, and actually<br />
this one is more fundamental to the digital world than floats. It is the <strong>in</strong>teger<br />
type. Integer numbers are represented and processed with <strong>in</strong>f<strong>in</strong>ite precision.<br />
Although the precision of <strong>in</strong>tegers is <strong>in</strong>f<strong>in</strong>ite, the range of representable <strong>in</strong>teger<br />
values is limited. For 32 bit <strong>in</strong>tegers the values can go up to more than 10 9 .<br />
Inf<strong>in</strong>ite precision for storage and process<strong>in</strong>g of <strong>in</strong>teger values is<br />
possible because they don’t have any decimal digits after the<br />
period, so you can write them us<strong>in</strong>g a f<strong>in</strong>ite number of digits.<br />
Let’s write down the number of seconds <strong>in</strong> an hour: 3, 6, 0,<br />
0, done. It’s that easy. If you try to write down the value of π<br />
you cannot do it completely: 3, 1, 4, 1, stop. Not complete, OK<br />
let’s write a couple more digits: 5, 9, stop. Still not complete,<br />
and so on. With an <strong>in</strong>teger number you can do it completely and<br />
precisely: 3600, that’s it.<br />
While float<strong>in</strong>g po<strong>in</strong>t is a natural choice for values that are chang<strong>in</strong>g cont<strong>in</strong>uously,<br />
as are audio signals, for discretely chang<strong>in</strong>g values (for example, counters)<br />
<strong>in</strong>tegers may be a more appropriate choice.<br />
Many <strong>Reaktor</strong> <strong>Core</strong> modules can be switched to <strong>in</strong>teger mode, <strong>in</strong> which case<br />
they expect <strong>in</strong>teger signals at their <strong>in</strong>puts; they process them as <strong>in</strong>tegers (that<br />
means with <strong>in</strong>f<strong>in</strong>ite precision); and they produce the <strong>in</strong>teger outputs. Examples<br />
of such modules <strong>in</strong>clude arithmetic modules like adder, multiplier, or subtractor.<br />
There are even some modules that can be used only on <strong>in</strong>tegers.<br />
M<strong>in</strong>imum 32 bit length is guaranteed for <strong>Reaktor</strong> <strong>Core</strong> <strong>in</strong>teger values.<br />
112 – REAKTOR CORE