From 2c0be7aa5d7dcdf18678fb7b09ba1b3b5dd00998 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Thu, 8 Aug 2019 12:56:05 -0700 Subject: Rework ice40_dsp to map to SB_MAC16 earlier, and check before packing --- techlibs/ice40/dsp_map.v | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 techlibs/ice40/dsp_map.v (limited to 'techlibs/ice40/dsp_map.v') diff --git a/techlibs/ice40/dsp_map.v b/techlibs/ice40/dsp_map.v new file mode 100644 index 000000000..06fa73956 --- /dev/null +++ b/techlibs/ice40/dsp_map.v @@ -0,0 +1,34 @@ +module \$__MUL16X16 (input [15:0] A, input [15:0] B, output [31:0] Y); + parameter A_SIGNED = 0; + parameter B_SIGNED = 0; + parameter A_WIDTH = 0; + parameter B_WIDTH = 0; + parameter Y_WIDTH = 0; + + SB_MAC16 #( + .NEG_TRIGGER(1'b0), + .C_REG(1'b0), + .A_REG(1'b0), + .B_REG(1'b0), + .D_REG(1'b0), + .TOP_8x8_MULT_REG(1'b0), + .BOT_8x8_MULT_REG(1'b0), + .PIPELINE_16x16_MULT_REG1(1'b0), + .PIPELINE_16x16_MULT_REG2(1'b0), + .TOPOUTPUT_SELECT(2'b11), + .TOPADDSUB_LOWERINPUT(2'b0), + .TOPADDSUB_UPPERINPUT(1'b0), + .TOPADDSUB_CARRYSELECT(2'b0), + .BOTOUTPUT_SELECT(2'b11), + .BOTADDSUB_LOWERINPUT(2'b0), + .BOTADDSUB_UPPERINPUT(1'b0), + .BOTADDSUB_CARRYSELECT(2'b0), + .MODE_8x8(1'b0), + .A_SIGNED(A_SIGNED), + .B_SIGNED(B_SIGNED) + ) _TECHMAP_REPLACE_ ( + .A(A), + .B(B), + .O(Y), + ); +endmodule -- cgit v1.2.3