URL https://opencores.org/ocsvn/two_dimensional_fast_hartley_transform/two_dimensional_fast_hartley_transform/trunk

Subversion Repositories two_dimensional_fast_hartley_transform

[/] [two_dimensional_fast_hartley_transform/] [trunk/] [signed_mult_const_fpga.v] - Diff between revs 4 and 7

Rev 4	Rev 7
Line 52...	Line 52...

`// FHT constant`	`// FHT constant`
`// wire [8:0] mult_constant; // always positive`	`// wire [8:0] mult_constant; // always positive`
`// assign mult_constant = 9'd362;`	`// assign mult_constant = 9'd362;`

`wire signed [17:0] mult_constant; // always positive`	`//wire signed [17:0] mult_constant; // always positive`
`assign mult_constant = {1'b0, 17'd92681};`	`//assign mult_constant = {1'b0, 17'd92681};`
	`parameter mult_constant = {1'b0, 17'd92681};`

`reg signed [N-1:0] a_FF;`	`reg signed [N-1:0] a_FF;`
`always @(posedge clk)`	`always @(posedge clk)`
`if (!rstn) a_FF <= #1 0;`	`if (!rstn) a_FF <= #1 0;`
`else if (valid) a_FF <= #1 a;`	`else if (valid) a_FF <= #1 a;`
Line 67...	Line 68...
`//assign p = p_tmp[(16+1)+N-1:16];// >> 16;`	`//assign p = p_tmp[(16+1)+N-1:16];// >> 16;`
`assign p = p_tmp >> 16;`	`assign p = p_tmp >> 16;`

`endmodule`	`endmodule`

`No newline at end of file`	`No newline at end of file`
	`// Update Log:`
	`// 27 Jul. 2011`
	`// wire [17:0] mult_constant replaced by parameter`

`No newline at end of file`	`No newline at end of file`