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Editing User:Jjdorf/Logic Gates

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Both doors (D) are ordinarily forbidden under normal operation.  A water drain path is unnecessary if you can force the pump on when you need to access the pressure plate for adjustments or replacement.  When the pump is on, and the thing is built and filled with the right amount of water, no water will ever be on the pressure plate tile.  Once the pump shuts off, the bottom floor will be fully submerged, four tiles of 7/7 water.  The mechanical input (S) provides the power to the pump.  Enough power must be available at this point to drive the pump (10 units) when the signal gear or axle is functioning.  The pressure plate (o) on the bottom layer is set to 0-3 water level.  The screw pump (%>) pumps away from the signal mechanism, towards a floor grate (#).
+
Both doors (D) are ordinarily forbidden under normal operation.  A water drain path is a good idea if maintenance is ever necessary on the bottom floor.  The mechanical input (S) provides the power to the pump.  Enough power must be available at this point to drive the pump (10 units) when the signal gear or axle is functioning.  The pressure plate (o) on the bottom layer is set to 0-3 water level.  The screw pump (%>) pumps away from the signal mechanism, towards a floor grate (#).
 
===Building===
 
===Building===
 
* First, construct or dig the walls and floors.  If constructing, do NOT build floors at the empty space tiles (.), channel the same tiles if digging from the rock.
 
* First, construct or dig the walls and floors.  If constructing, do NOT build floors at the empty space tiles (.), channel the same tiles if digging from the rock.
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1 Block
 
1 Block
 
1 Grate
 
1 Grate
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===Inverter===
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An inverter can be built with identical properties and build sequence by simply changing the pressure plate to trigger on 4-7 water.
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===Hybrid===
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Technically, this gate is designed for use solely in a hybrid environment, as the end result of a mechanical logic gear chain.  If intended to be used completely as Fluid logic, the source would be converted to a power input, moved to the side of the pump instead of over the source tile, a hatch would be placed over the source tile, defaulting to closed when off.
 
===Notes===
 
===Notes===
A Rotation sensor can also be considered a simple Buffer.  Buffers in actual electronics circuits are often used to increase the number of gates an output signal can be connected to, often by much more than the standard gate output can do.  Thus, I consider mechanical logic and fluid logic to be two different types of gates, and you use the gate that is best suited for the specific job.  Since fluid logic has a greater ''fan-out'' than mechanical logic, the fluid buffer can reset the power needed, since fundamentally, multiple mechanical gates '''can''' be connected together without issue until power runs out.
+
A Rotation sensor can also be considered a simple Buffer.  Buffers in actual electronics circuits are often used to increase the number of gates an output signal can be connected to, often by much more than the standard gate output can do.  Thus, I consider mechanical logic and fluid logic to be two different types of gates, and you use the gate that is best suited for the specific job.  Since fluid logic has a greater ''fan-out'' than mechanical logic, the fluid buffer can reset the power needed, since fundamentally, multiple mechanical gates '''can''' be connected together without issue until power runs out or you need to use load gear assemblies such as in an XOR or XNOR gate.
 +
===TODO===
 +
Verify that a signal gear or axle can be placed at (S) and still allow water to be pumped.  If this is not possible, adjust the design to put the gear one z-level above the pump, making sure to channel the floor to allow power transfer.  Construct and build a prototype and leave it run for a long time to verify the claim of no evaporation.  Dwarf Science!
 
===Pros/Cons===
 
===Pros/Cons===
 
The pressure plate requires 100 steps to switch off, but switches on immediately.  The sensor is water tight and should not evaporate under normal operation, allowing it to be disconnected from an infinite water source.
 
The pressure plate requires 100 steps to switch off, but switches on immediately.  The sensor is water tight and should not evaporate under normal operation, allowing it to be disconnected from an infinite water source.
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2 Mechanisms
 
2 Mechanisms
 
2 Additional Mechanisms which are then recovered
 
2 Additional Mechanisms which are then recovered
===Decomposed XOR Gate===
 
The above gate is functionally equivalent to the following, which can be used in more complicated designs.
 
 
PAb
 
BaO
 
 
Another variation:
 
 
PAb
 
  aBO
 
 
==ML 8-bit Adder/Subtractor==
 
From my forum thread, the Adder/Subtractor uses 8 bits of an adder/subtractor assembly, one per input bit, and a carry input endcap.  Inputs are one Z signal, which is false for addition, and true for subtraction; and 1 A and 1 B input per bit of addition.
 
 
First, the 1-bit adder module:
 
 
  CC
 
PBAa  PS
 
  bB
 
 
Link the incoming A signal to the A and a gears, pre-toggling the a gear.  Link the incoming B signal ''and'' the incoming Z signal to the B and b gears, pre-toggling the b gear.  Construct an FL Buffer under the CC gear pair, and link its pressure plate to the S gear.  Also link the A, B, and Z signals to that pressure plate.  Construct a second FL Buffer under S, but ''not'' under the adjacent Power gear (P).  The pressure plate of this second buffer is the result of the addition or subtraction for this bit.
 
  
Second the endcap:
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==ML Full 1-bit Adder==
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As designed on my forum posts, a 1-bit full feature adder "chip" can be built from combined logic gates.  This adder takes as input three single bit numbers, which are added together to produce two outputs, a result and a carry.
  
   *ZP
+
OIPAB
 +
   ZxC
  
Link the Z signal to the Z gear.  The extra gear * simply transfers powerThe final construction will look like this:
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Power (P) is provided, and must be a gear.  The outputs (O & C) are most likely to be direct connections to FL Buffers.  Input gears are the complicated part.  Each input signal, A, B, and Z, are the three single bit inputs.  Z is what is commonly known as the Carry input.  The gears labeled A, B, and Z are standard non-pre-toggled gears linked to these signals.  The two other gears use combinations of these inputs to produce the correct results.  The first, x, is a pre-toggled gear linked to A and B signals.  The second, I, is a non-pre-toggled gear linked to all three input signalsThis last gear is known as a three input XOR gate, and is active when an odd number of inputs are true.
  
  CC
+
The power cost of this gear train, including the P gear, but not addition power train, nor the output trains, costs exactly 30 power. It will take 7 mechanisms to build, excluding the cost of linking input signals (which by my convention, is included in the cost of Fluid memory and buffer gates).
  PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  CC
 
PBAa  PS
 
  bB
 
  *ZP
 
  
 
==DPROM==
 
==DPROM==

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