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microwatt/asic/behavioural/multiply_add_64x64.v

23 lines
358 B
Verilog

module multiply_add_64x64
#(
parameter BITS=64
) (
`ifdef USE_POWER_PINS
inout VPWR,
inout VGND,
`endif
input clk,
input [BITS-1:0] a,
input [BITS-1:0] b,
input [BITS*2-1:0] c,
output [BITS*2-1:0] o
);
reg [BITS*2-1:0] o_tmp;
always @(posedge clk) begin
o_tmp = (a * b) + c;
end
assign o = o_tmp;
endmodule