rebase master update

hw/rtl/tex_unit/VX_tex_lerp.v

@@ -0,0 +1,17 @@
+`include "VX_tex_define.vh"
+
+module VX_tex_lerp #(
+) (
+    input wire [`BLEND_FRAC-1:0] blend, 
+    input wire  [31:0] in1,
+    input wire  [31:0] in2,
+    output wire [31:0] out
+);  
+    for (genvar i = 0; i < 4; ++i) begin
+        wire [8:0]  blend_m1 = `BLEND_ONE - blend;
+        wire [16:0] sum = in1[i*8+:8] * blend_m1 + in2[i*8+:8] * blend;
+        `UNUSED_VAR (sum)
+        assign out[i*8+:8] = sum[15:8];
+    end
+
+endmodule