Fix up background layer

README.md

@@ -2,7 +2,6 @@
 
 ![Still of a city-like scene](img.png)
 
-(Video outdated)
 ![Said city-like scene scrolling by](out.webp)
 
 

src/project.v

@@ -127,9 +127,10 @@ module tt_um_favoritohjs_scroller (
 			count1 <= 3'd7;
 			count1b <= 3'd7;
 			lfsr2 <= 10'h10f;
-			lfsr2b <= 10'h3ff;
+			lfsr2b <= 10'h10f;
 			count2 <= 2'd3;
 			count2b <= 2'd3;
+			count2low <= 1'b1;
 			//cutoff2 <= 5'd0;
 			dither <= 1'b0;
 			rd <= 3'b000;
@@ -167,13 +168,19 @@ module tt_um_favoritohjs_scroller (
 				if (vcount == 482) begin
 					count1b <= count1b  + 1;
 					if (count1b == 0) begin
-						lfsr1b[0] <= lfsr1b[8] ^ lfsr1b[4];
-						lfsr1b[8:1] <= lfsr1b[7:0];
+						lfsr1b[0] <= lfsr1b[9] ^ lfsr1b[6];
+						lfsr1b[1] <= lfsr1b[8] ^ lfsr1b[5];
+						lfsr1b[2] <= lfsr1b[7] ^ lfsr1b[4];
+						lfsr1b[3] <= lfsr1b[6] ^ lfsr1b[3];
+						lfsr1b[9:4] <= lfsr1b[5:0];
 					end
-					{count2b, count2low}<= {count2b, count2low} + 1;
-					if (count2b == 0 & count2low == 0) begin
-						lfsr2b[0] <= lfsr2b[8] ^ lfsr2b[4];
-						lfsr2b[8:1] <= lfsr2b[7:0];
+					{count2b, count2low}<= {count2b, count2low} + 3'd1;
+					if (count2b == 0 & count2low == 1) begin
+						lfsr2b[0] <= lfsr2b[9] ^ lfsr2b[6];
+						lfsr2b[1] <= lfsr2b[8] ^ lfsr2b[5];
+						lfsr2b[2] <= lfsr2b[7] ^ lfsr2b[4];
+						lfsr2b[3] <= lfsr2b[6] ^ lfsr2b[3];
+						lfsr2b[9:4] <= lfsr2b[5:0];
 					end
 				end
 				lfsr1 <= lfsr1b;

test/command.sh

@@ -0,0 +1 @@
+img2webp -o out.webp -d 17 display0.png display1.png display2.png display3.png display4.png display5.png display6.png display7.png display8.png display9.png display10.png display11.png display12.png display13.png display14.png display15.png display16.png display17.png display18.png display19.png display20.png display21.png display22.png display23.png display24.png display25.png display26.png display27.png display28.png display29.png display30.png display31.png display32.png display33.png display34.png display35.png display36.png display37.png display38.png display39.png display40.png display41.png display42.png display43.png display44.png display45.png display46.png display47.png display48.png display49.png display50.png display51.png display52.png display53.png display54.png display55.png display56.png display57.png display58.png display59.png display60.png display61.png display62.png display63.png

test/tb.v

@@ -7,7 +7,7 @@
 module tb ();
 
   // Dump the signals to a VCD file. You can view it with gtkwave.
-  
+
   initial begin
     $dumpfile("tb.vcd");
     $dumpvars(0, tb);

test/test.py

@@ -28,7 +28,8 @@ async def test_project(dut):
     dut.rst_n.value = 1
 
     dut._log.info("Test project behavior")
-    for framenum in range(1):
+    for framenum in range(1:
+        dut._log.info(f"Rendering frame {framenum}.")
         frame = []
         for i in range(525):
             row = []