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-rw-r--r--src/alu.v10
1 files changed, 3 insertions, 7 deletions
diff --git a/src/alu.v b/src/alu.v
index 61bb2fb..d54721b 100644
--- a/src/alu.v
+++ b/src/alu.v
@@ -4,8 +4,7 @@ module alu #(
input [N-1:0] A, B,
input [3:0] OP, // OP[3:2] 00: ARITHMETIC, 01: LOGIC, 10: SHIFT
output reg [N-1:0] RESULT,
- output ZERO,
- output OVERFLOW
+ output ZERO
);
wire [N-1:0] arithmetic_result, logic_result, shift_result;
@@ -14,8 +13,7 @@ arithmetic_unit #(.N(N)) au (
.A(A),
.B(B),
.OP(OP[1:0]),
- .RESULT(arithmetic_result),
- .OVERFLOW(overflow)
+ .RESULT(arithmetic_result)
);
logic_unit #(.N(N)) lu (
@@ -27,7 +25,7 @@ logic_unit #(.N(N)) lu (
shift_unit #(.N(N)) su (
.A(A),
- .SHAMT(B[clog2(N):0]),
+ .SHAMT(B),
.OP(OP[1:0]),
.RESULT(shift_result)
);
@@ -40,8 +38,6 @@ always @ (*) begin
endcase
end
-assign OVERFLOW = OP[3:2] == 2'b00 ? overflow : 0;
-
assign ZERO = ~|RESULT;
endmodule