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ReformBooleanExpression.m
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ReformBooleanExpression.m
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function [ ReformedExpression ] = ReformBooleanExpression( CurrentBlock, BitPosition )
%FUNCTION DESCRIPTION
%Step 1) Variable Initialization --------------------------------------
OldExp = CurrentBlock.gateLevelEquation;
%NewExp = cell(size(CurrentBlock.gateLevelEquation, 1), 1);
%Step 1) END ----------------------------------------------------------
%Step 2) Reform -------------------------------------------------------
if isequal(CurrentBlock.carryIn, 'No')
for i = 1 : size(CurrentBlock.gateLevelEquation, 1)
k = 1;
for j = 1 : size(CurrentBlock.gateLevelEquation{i}, 2)
if isequal( CurrentBlock.gateLevelEquation{i}(j), 'A' )
OldExp{i} = [OldExp{i}(1:k), '[', int2str(BitPosition), ']', ...
OldExp{i}(k+1:end)];
k = k + size( ['[', int2str(BitPosition), ']'], 2);
elseif isequal( CurrentBlock.gateLevelEquation{i}(j), 'B' )
OldExp{i} = [OldExp{i}(1:k), '[', int2str(BitPosition), ']', ...
OldExp{i}(k+1:end)];
k = k + size( ['[', int2str(BitPosition), ']'], 2);
end
k = k + 1;
end
end
else % CarryIn == 'Yes' then change (A => C), (B => A), and (C => B)
for i = 1 : size(CurrentBlock.gateLevelEquation, 1)
k = 1;
for j = 1 : size(CurrentBlock.gateLevelEquation{i}, 2)
if isequal( CurrentBlock.gateLevelEquation{i}(j), 'A' )
OldExp{i} = [OldExp{i}(1:k-1), 'C', int2str(BitPosition), ...
OldExp{i}(k+1:end)];
k = k + size( [int2str(BitPosition)], 2);
elseif isequal( CurrentBlock.gateLevelEquation{i}(j), 'B' )
OldExp{i} = [OldExp{i}(1:k-1), 'A', '[', int2str(BitPosition), ']', ...
OldExp{i}(k+1:end)];
k = k + size( ['[', int2str(BitPosition), ']'], 2);
elseif isequal( CurrentBlock.gateLevelEquation{i}(j), 'C' )
OldExp{i} = [OldExp{i}(1:k-1), 'B', '[', int2str(BitPosition), ']', ...
OldExp{i}(k+1:end)];
k = k + size( ['[', int2str(BitPosition), ']'], 2);
end
k = k + 1;
end
end
end
%Step 2) END ----------------------------------------------------------
ReformedExpression = OldExp;
end