diff options
| author | Eddie Hung <eddie@fpgeh.com> | 2019-04-11 10:08:05 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-04-11 10:08:05 -0700 |
| commit | 8658b56a08737cef6040015b192c11da3e6b4eb4 (patch) | |
| tree | 080a15b2fb726b86ab011b43c868aa79d6ba26f5 /techlibs | |
| parent | 0ec85640993e0eeb089334efbcd486a254d32786 (diff) | |
| download | yosys-8658b56a08737cef6040015b192c11da3e6b4eb4.tar.gz yosys-8658b56a08737cef6040015b192c11da3e6b4eb4.tar.bz2 yosys-8658b56a08737cef6040015b192c11da3e6b4eb4.zip | |
More fine tuning
Diffstat (limited to 'techlibs')
| -rw-r--r-- | techlibs/xilinx/cells_map.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/techlibs/xilinx/cells_map.v b/techlibs/xilinx/cells_map.v index f1ea8f6df..071014d47 100644 --- a/techlibs/xilinx/cells_map.v +++ b/techlibs/xilinx/cells_map.v @@ -56,7 +56,7 @@ module \$shiftx (A, B, Y); localparam a_width0 = 2 ** 2; localparam a_widthN = A_WIDTH - a_width0; wire T0, T1; - \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_width0), .B_WIDTH(B_WIDTH-1), .Y_WIDTH(Y_WIDTH)) fpga_shiftx (.A(A[a_width0-1:0]), .B(B[B_WIDTH-2:0]), .Y(T0)); + \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_width0), .B_WIDTH(2), .Y_WIDTH(Y_WIDTH)) fpga_shiftx (.A(A[a_width0-1:0]), .B(B[2-1:0]), .Y(T0)); \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_widthN), .B_WIDTH($clog2(a_widthN)), .Y_WIDTH(Y_WIDTH)) fpga_shiftx_last (.A(A[A_WIDTH-1:a_width0]), .B(B[$clog2(a_widthN)-1:0]), .Y(T1)); MUXF7 fpga_mux (.I0(T0), .I1(T1), .S(B[B_WIDTH-1]), .O(Y)); end @@ -68,7 +68,7 @@ module \$shiftx (A, B, Y); wire T0, T1; for (i = 0; i < B_WIDTH; i++) if (i < num_mux8) - \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_width0), .B_WIDTH(B_WIDTH-2), .Y_WIDTH(Y_WIDTH)) fpga_shiftx (.A(A[i*a_width0+:a_width0]), .B(B[B_WIDTH-3:0]), .Y(T[i])); + \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_width0), .B_WIDTH(3), .Y_WIDTH(Y_WIDTH)) fpga_shiftx (.A(A[i*a_width0+:a_width0]), .B(B[3-1:0]), .Y(T[i])); else if (i == num_mux8 && a_widthN > 0) \$shiftx #(.A_SIGNED(A_SIGNED), .B_SIGNED(B_SIGNED), .A_WIDTH(a_widthN), .B_WIDTH($clog2(a_widthN)), .Y_WIDTH(Y_WIDTH)) fpga_shiftx_last (.A(A[A_WIDTH-1:i*a_width0]), .B(B[$clog2(a_widthN)-1:0]), .Y(T[i])); else |