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Diffstat (limited to 'sdr_lib/hb/acc.v')
| -rw-r--r-- | sdr_lib/hb/acc.v | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sdr_lib/hb/acc.v b/sdr_lib/hb/acc.v new file mode 100644 index 000000000..195d5ea94 --- /dev/null +++ b/sdr_lib/hb/acc.v @@ -0,0 +1,22 @@ + + +module acc (input clock, input reset, input clear, input enable_in, output reg enable_out, + input signed [30:0] addend, output reg signed [33:0] sum ); + + always @(posedge clock) + if(reset) + sum <= #1 34'd0; + //else if(clear & enable_in) + // sum <= #1 addend; + //else if(clear) + // sum <= #1 34'd0; + else if(clear) + sum <= #1 addend; + else if(enable_in) + sum <= #1 sum + addend; + + always @(posedge clock) + enable_out <= #1 enable_in; + +endmodule // acc + |