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overflow fix

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This commit is contained in:
k0rrluna
2024-12-21 15:36:58 +03:00
parent 4363a50662
commit 9102d27bab
9 changed files with 1703 additions and 2851 deletions
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15
project0.2/subtraction.v
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@@ -2,8 +2,7 @@ module subtraction (
input [3:0] A, B,
input BorrowIN,
output [3:0] Y,
output BorrowOut,
output overflow
output BorrowOUT //Overflow signal'ini yani negatif gonderecek
);
wire [3:0] tempB;
@@ -12,16 +11,6 @@ wire [3:0] tempB;
fullsubtraction f0 (.A(A[0]), .B(B[0]), .BorrowIN(BorrowIN), .Difference(Y[0]), .BorrowOut(tempB[0]));
fullsubtraction f1 (.A(A[1]), .B(B[1]), .BorrowIN(tempB[0]), .Difference(Y[1]), .BorrowOut(tempB[1]));
fullsubtraction f2 (.A(A[2]), .B(B[2]), .BorrowIN(tempB[1]), .Difference(Y[2]), .BorrowOut(tempB[2]));
fullsubtraction f3 (.A(A[3]), .B(B[3]), .BorrowIN(tempB[2]), .Difference(Y[3]), .BorrowOut(BorrowOut));
// Overflow detection logic as provided
overflowDetect od1 (
.opCode(2'b10),
.A(A),
.B(B),
.Y(Y),
.CarryOUT(BorrowOut),
.overflowDetect(overflow)
);
fullsubtraction f3 (.A(A[3]), .B(B[3]), .BorrowIN(tempB[2]), .Difference(Y[3]), .BorrowOut(BorrowOUT));
endmodule