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Diffstat (limited to 'usrp2/fpga/sdr_lib/acc.v')
-rw-r--r-- | usrp2/fpga/sdr_lib/acc.v | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/usrp2/fpga/sdr_lib/acc.v b/usrp2/fpga/sdr_lib/acc.v deleted file mode 100644 index a2da9c86d..000000000 --- a/usrp2/fpga/sdr_lib/acc.v +++ /dev/null @@ -1,28 +0,0 @@ - -module acc - #(parameter IWIDTH=16, OWIDTH=30) - (input clk, - input clear, - input acc, - input [IWIDTH-1:0] in, - output reg [OWIDTH-1:0] out); - - wire [OWIDTH-1:0] in_signext; - sign_extend #(.bits_in(IWIDTH),.bits_out(OWIDTH)) - acc_signext (.in(in),.out(in_signext)); - - // CLEAR & ~ACC --> clears the accumulator - // CLEAR & ACC --> loads the accumulator - // ~CLEAR & ACC --> accumulates - // ~CLEAR & ~ACC --> hold - - wire [OWIDTH-1:0] addend1 = clear ? 0 : out; - wire [OWIDTH-1:0] addend2 = ~acc ? 0 : in_signext; - wire [OWIDTH-1:0] sum_int = addend1 + addend2; - - always @(posedge clk) - out <= sum_int; - -endmodule // acc - - |