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Boolean Input Instructions

Boolean input instructions read a Boolean value from the data table or the logic stack, and output the result to the logic stack.

Instruction	Description	# Params	X	Y	C	T	CT	SC
AND	AND bit with top of logic stack	1	X	X	X	X	X	X
ANDN	AND NOT bit with top of logic stack	1	X	X	X	X	X	X
ANDSTR	AND top two values on logic stack	0
OR	OR bit with top of logic stack	1	X	X	X	X	X	X
ORN	OR NOT bit with top of logic stack	1	X	X	X	X	X	X
ORSTR	OR top two values on logic stack	0
STR	Store bit onto logic stack	1	X	X	X	X	X	X
STRN	Store NOT bit onto logic stack	1	X	X	X	X	X	X

Boolean input instructions have two types of input parameters, explicit and implicit. A Boolean input instruction will accept no more than one explicit parameter, and zero, one, or two implicit parameters.

An explicit parameter is a Boolean (bit) address such as X, Y, C, etc.
An implicit parameter is the value on the top of the logic stack.
Some instructions use the top two logic stack values as implicit parameters.

All Boolean input instructions output their result by modifying the logic stack.

Boolean input instructions fall into three categories: AND, OR, and STORE.

AND instructions perform a logical AND on two inputs and store the result by replacing the original value on the top of the logic stack with the new value.
OR instructions perform a logical OR on two inputs and store the result by replacing the original value on the top of the logic stack with the new value.
STORE instructions simply store a value on the top of the logic stack, pushing the original value further down on the stack without modifying it.

All Boolean input instructions have both normal and "NOT" versions.

Example:


	NETWORK 1
	STR X1
	AND X2
	OR X3
	OUT Y1
	
	NETWORK 2
	STRN C10
	ANDN C11
	ORN C12
	OUT C21
	
	NETWORK 3
	STR Y1
	STR Y2
	ANDSTR
	STR Y3
	ORSTR
	OUT Y10

Ladder Examples

The following shows examples in ladder format. Each example shows the IL code as comments, followed by the ladder equivalent.

boolean example 1 boolean example 2 boolean example 3 boolean example 4