diff --git a/lib/VGA_ctrl/src/char_gen.vhd b/lib/VGA_ctrl/src/char_gen.vhd
index c9d9970..4dd93b1 100644
--- a/lib/VGA_ctrl/src/char_gen.vhd
+++ b/lib/VGA_ctrl/src/char_gen.vhd
@@ -192,7 +192,7 @@ architecture Behavioral of char_gen is
 	signal csr_posy_synced			: natural range 0 to MAX_LINE_PER_FRAME-1;
 		
 	-- Scrolling
-	signal scroll_offset			: natural range 0 to MAX_CHAR_PER_LINE-1;
+	signal scroll_offset			: natural range 0 to MAX_LINE_PER_FRAME-1;
 	signal scroll_active			: std_logic;
 
 
@@ -283,21 +283,21 @@ begin
 		end case;
 	end process;
 		
-	asci_ram_fsm_next: process (rst, sys_clk)
+	asci_ram_fsm_next: process (sys_clk)
 	begin
-		if rst = '1' then
-			s <= cg_init;
-		elsif rising_edge(sys_clk) then
-			s <= sn;
+		if rising_edge(sys_clk) then
+			if rst = '1' then
+				s <= cg_init;
+			else	
+				s <= sn;
+			end if;	
 		end if;	
 	end process;
 
 	---------------------------------------------------------------------------------------------
-	asci_ram_cnt: process (rst, sys_clk)
+	asci_ram_cnt: process (sys_clk)
 	begin
-		if rst = '1' then
-			a_cnt <= 0;
-		elsif rising_edge(sys_clk) then
+		if rising_edge(sys_clk) then
 			if a_cnt_rst = '1' then
 				a_cnt <= 0;
 			elsif a_cnt_en = '1' then
@@ -309,22 +309,17 @@ begin
 	end process;
 
 	---------------------------------------------------------------------------------------------
-	asci_addr_reg: process (rst, sys_clk)
+	asci_addr_reg: process (sys_clk)
 	begin
-		if rst = '1' then
-			csr_posx_cnt_en <= '0';
-			csr_posx_cnt_set <= '0';
-			csr_posy_cnt_en <= '0';
-			csr_posy_cnt_set <= '0';
-			a_data_reg <= (others => '0');
-			a_data_we <= '0';
-		elsif rising_edge(sys_clk) then
+		if rising_edge(sys_clk) then
 			a_data_we <= '0';
 			csr_posx_cnt_en <= '0';
 			csr_posx_cnt_set <= '0';
 			csr_posy_cnt_en <= '0';
 			csr_posy_cnt_set <= '0';
-			if posy_we = '1' then
+			if rst = '1' then
+				a_data_reg <= (others => '0');
+			elsif posy_we = '1' then
 				csr_posy_cnt_din <= to_integer(din);
 				csr_posy_cnt_set <= '1';
 			elsif posx_we = '1' then
@@ -349,14 +344,13 @@ begin
 	end process;
 
 	asci_csr_posx_counter:
-	process (rst, sys_clk)
+	process (sys_clk)
 	begin
-		if rst = '1' then
-			csr_posx_reg <= 0;
+		if rising_edge(sys_clk) then
 			csr_posx_overflow <= '0';
-		elsif rising_edge(sys_clk) then
-			csr_posx_overflow <= '0';
-			if csr_posx_cnt_set = '1' then
+			if rst = '1' then
+				csr_posx_reg <= 0;
+			elsif csr_posx_cnt_set = '1' then
 				csr_posx_reg <= csr_posx_cnt_din;
 			elsif csr_posx_cnt_en = '1' then	
 				if csr_posx_reg < MAX_CHAR_PER_LINE-1 then
@@ -370,14 +364,13 @@ begin
 	end process;
 	
 	asci_csr_posy_counter:
-	process (rst, sys_clk)
+	process (sys_clk)
 	begin
-		if rst = '1' then
-			csr_posy_reg <= 0;
+		if rising_edge(sys_clk) then
 			csr_posy_overflow <= '0';
-		elsif rising_edge(sys_clk) then
-			csr_posy_overflow <= '0';
-			if csr_posy_cnt_set = '1' then
+			if rst = '1' then
+				csr_posy_reg <= 0;
+			elsif csr_posy_cnt_set = '1' then
 				csr_posy_reg <= csr_posy_cnt_din;
 			elsif csr_posy_cnt_en = '1' or csr_posx_overflow = '1' then	
 				if csr_posy_reg < MAX_LINE_PER_FRAME-1 then
@@ -390,15 +383,14 @@ begin
 		end if;
 	end process;
 	
-	scroll_gen: process (rst, sys_clk)
+	scroll_gen: process (sys_clk)
 	begin
-		if rst = '1' then
-			scroll_offset <= 0;
-			scroll_active <= '0';
-		elsif rising_edge(sys_clk) then
-			if clr_screen = '1' then
+		if rising_edge(sys_clk) then
+			if rst = '1' or clr_screen = '1' then
 				scroll_offset <= 0;
 				scroll_active <= '0';
+			elsif csr_posy_cnt_set = '1' then
+				scroll_active <= '0';
 			elsif csr_posy_overflow = '1' then
 				scroll_active <= '1';
 				scroll_offset <= 1;