From f14d7f0df65c6892b911c74e1674a94ad3e556db Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Thu, 25 Apr 2019 19:43:41 -0700 Subject: [PATCH] Cleanup superseded --- techlibs/xilinx/cells_map.v | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v index 4275c03e6..c814f3a96 100644 --- a/techlibs/xilinx/cells_map.v +++ b/techlibs/xilinx/cells_map.v @@ -167,17 +167,7 @@ module \$shiftx (A, B, Y); wire _TECHMAP_FAIL_ = 1; end else if (Y_WIDTH > 1) begin - for (i = 0; i < Y_WIDTH; i++) - \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(A_WIDTH-Y_WIDTH+1), .B_WIDTH(B_WIDTH), .Y_WIDTH(1'd1)) bitblast (.A(A[A_WIDTH-Y_WIDTH+i:i]), .B(B), .Y(Y[i])); - end - // If the LSB of B is constant zero (and Y_WIDTH is 1) then - // we can optimise by removing every other entry from A - // and popping the constant zero from B - else if (_TECHMAP_CONSTMSK_B_[0] && !_TECHMAP_CONSTVAL_B_[0]) begin - wire [(A_WIDTH+1)/2-1:0] A_i; - for (i = 0; i < (A_WIDTH+1)/2; i++) - assign A_i[i] = A[i*2]; - \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH((A_WIDTH+1'd1)/2'd2), .B_WIDTH(B_WIDTH-1'd1), .Y_WIDTH(Y_WIDTH)) _TECHMAP_REPLACE_ (.A(A_i), .B(B[B_WIDTH-1:1]), .Y(Y)); + wire _TECHMAP_FAIL_ = 1; end else if (B_WIDTH < 3 || A_WIDTH <= 4) begin wire _TECHMAP_FAIL_ = 1; -- 2.30.2