Add newline handling to term renderer

Artix-7-HDMI-processing.xpr

@@ -42,7 +42,7 @@
     <Option Name="IPUserFilesDir" Val="$PIPUSERFILESDIR"/>
     <Option Name="IPStaticSourceDir" Val="$PIPUSERFILESDIR/ipstatic"/>
     <Option Name="EnableBDX" Val="FALSE"/>
-    <Option Name="WTXSimLaunchSim" Val="301"/>
+    <Option Name="WTXSimLaunchSim" Val="307"/>
     <Option Name="WTModelSimLaunchSim" Val="0"/>
     <Option Name="WTQuestaLaunchSim" Val="0"/>
     <Option Name="WTIesLaunchSim" Val="0"/>

src/term_renderer.v

@@ -70,7 +70,8 @@ reg [11:0] glyphmem_style_reg;
 wire [3:0] gm_data_fgcolor = glyphmem_style_reg[3:0];
 wire [3:0] gm_data_bgcolor = glyphmem_style_reg[7:4];
 wire gm_data_bold = gm_data_style[10];
-wire gm_data_underline = glyphmem_style_reg[11];
+wire gm_data_underline = glyphmem_style_reg[11] && !newline_found;
+reg newline_found;
 
 assign out_vsync = in_vsync_last;
 assign out_hsync = in_hsync_last;
@@ -90,6 +91,7 @@ always @(posedge clk) begin
 		in_vsync_last <= 0;
 		glyph_sreg_out <= 0;
 		glyphmem_style_reg <= 0;
+		newline_found <= 0;
 		
 	end else begin
 		in_hsync_last <= in_hsync;
@@ -98,6 +100,7 @@ always @(posedge clk) begin
 		if (in_hsync_last && !in_hsync) begin
 			glyph_x <= 0;
 			px_x <= 0;
+			newline_found <= 0;
 			
 			if (px_y != FONT_GLYPH_H-1) begin
 				px_y <= px_y + 1;
@@ -115,13 +118,20 @@ always @(posedge clk) begin
 			end
 			
 			if (px_x == 0) begin
-				if (gm_data_bold) begin
+				if (newline_found) begin
+					glyph_sreg_out <= 0;
+				end else if (gm_data_bold) begin
 					glyph_sreg_out <= glyph_table_bold[gm_data_glyph*FONT_GLYPH_H + px_y];
 				end else begin
 					glyph_sreg_out <= glyph_table_default[gm_data_glyph*FONT_GLYPH_H + px_y];
 				end
+				
 				glyphmem_style_reg <= gm_data_style;
 				glyph_x <= glyph_x + 1;
+				
+				if (gm_data_glyph == 8'h0a) begin /* Newline character */
+					newline_found <= 1;
+				end
 
 			end else begin
 				glyph_sreg_out <= {glyph_sreg_out[FONT_GLYPH_W-2:0], 1'b0};