diff options
Diffstat (limited to 'techlibs/xilinx/xc5v_dsp_map.v')
| -rw-r--r-- | techlibs/xilinx/xc5v_dsp_map.v | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/techlibs/xilinx/xc5v_dsp_map.v b/techlibs/xilinx/xc5v_dsp_map.v new file mode 100644 index 000000000..fc7ba46cc --- /dev/null +++ b/techlibs/xilinx/xc5v_dsp_map.v @@ -0,0 +1,45 @@ +module \$__MUL25X18 (input [24:0] A, input [17:0] B, output [42:0] Y); + parameter A_SIGNED = 0; + parameter B_SIGNED = 0; + parameter A_WIDTH = 0; + parameter B_WIDTH = 0; + parameter Y_WIDTH = 0; + + wire [47:0] P_48; + DSP48E #( + // Disable all registers + .ACASCREG(0), + .A_INPUT("DIRECT"), + .ALUMODEREG(0), + .AREG(0), + .BCASCREG(0), + .B_INPUT("DIRECT"), + .BREG(0), + .MULTCARRYINREG(0), + .CARRYINREG(0), + .CARRYINSELREG(0), + .CREG(0), + .MREG(0), + .OPMODEREG(0), + .PREG(0), + .USE_MULT("MULT"), + .USE_SIMD("ONE48") + ) _TECHMAP_REPLACE_ ( + //Data path + .A({{5{A[24]}}, A}), + .B(B), + .C(48'b0), + .P(P_48), + + .ALUMODE(4'b0000), + .OPMODE(7'b000101), + .CARRYINSEL(3'b000), + + .ACIN(30'b0), + .BCIN(18'b0), + .PCIN(48'b0), + .CARRYIN(1'b0) + ); + assign Y = P_48; +endmodule + |