logic.h File Reference

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#include <assert.h>
#include <stdio.h>

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Enumerations
enum	BIT { FALSE =0, TRUE =1 }

Functions
BIT	not_gate (BIT A)
BIT	or_gate (BIT A, BIT B)
BIT	and_gate (BIT A, BIT B)
BIT	xor_gate (BIT A, BIT B)
BIT	rs_latch (BIT S, BIT R)
BIT	d_latch (BIT D, BIT WE)
int	adder (int O1, int O2, BIT carryIn, BIT *carryOut)
BIT	multiplexer (BIT A, BIT B, BIT C, BIT D, BIT S1, BIT S0)
void	decoder (BIT A, BIT B, BIT *O0, BIT *O1, BIT *O2, BIT *O3)

Detailed Description

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Function Documentation

BIT not_gate

(

BIT

A

)

Simulates NOT logic gate.

Parameters

A	input to the NOT gate

Returns

NOT gate output, returns NOT A

Truth table

       A   return
       0   1
       1   0

BIT or_gate	(	BIT	A,
		BIT	B
	)

Simulates OR logic gate.

Parameters

A	first input to the OR gate
B	second input to the OR gate

Returns

returns A OR B

Truth table

       A B  return
       0 0    0    
       0 1    1    
       1 0    1    
       1 1    1    

BIT rs_latch	(	BIT	S,
		BIT	R
	)

Simulates RS latch circuit. Asserts if S = R = 0.

Parameters

S	set input line
R	reset input line

Returns

returns RS latch output

Truth table

       S R  return
       0 0   assert
       0 1   1 
       1 0   0 
       1 1   previous output