diff --git a/lib/VGA_ctrl/src/vga_types.vhd b/lib/VGA_ctrl/src/vga_types.vhd
index 80667c2..6ca9520 100644
--- a/lib/VGA_ctrl/src/vga_types.vhd
+++ b/lib/VGA_ctrl/src/vga_types.vhd
@@ -123,14 +123,6 @@ package vga_types is
 	);
 
 	-- Functions
-	function NextPowerOfTwo(x : natural) return natural;
-	function NextExpBaseTwo(x : natural) return natural;
-	function GCD(a, b : natural) return natural;
-	function LCM(a, b : natural) return natural;
-	function DCM_PERIOD(f_sys_hz : natural) return real;
-	function DCM_FREQ_M(f_sys_hz, f_vga_hz : natural) return natural;
-	function DCM_FREQ_D(f_sys_hz, f_vga_hz : natural) return natural;
-	
 	function to_color_t(x : unsigned) return color_t;
 	function to_unsigned(x : color_t) return unsigned;
 	
@@ -139,81 +131,6 @@ end vga_types;
 
 package body vga_types is
 
-	function NextExpBaseTwo(x : natural) return natural is
-	begin
-		return natural(ceil(log2(real(x))));
-	end NextExpBaseTwo;	
-	
-	function NextPowerOfTwo(x : natural) return natural is
-	begin
-
-		return 2**NextExpBaseTwo(x);
-	end NextPowerOfTwo;	
-	
-	function GCD(a, b : natural) return natural is
-	variable aa : natural;
-	variable bb : natural;
-	begin
-		aa := a;
-		bb := b;
-		while bb /= 0 loop
-			if aa > bb then
-				aa := aa - bb;
-			else
-				bb := bb - aa;
-			end if;
-		end loop;
-		
-		return aa;
-
-	end GCD;	
-
-	function LCM(a, b : natural) return natural is
-	begin
-
-		return (a * b)/GCD(a, b);
-
-	end LCM;	
-
-	function DCM_FREQ_M(f_sys_hz, f_vga_hz : natural) return natural is
-	variable f_sys_mhz : natural;
-	variable f_vga_mhz : natural;
-	variable m : natural;
-	begin
-		f_sys_mhz := f_sys_hz/1E6;
-		f_vga_mhz := f_vga_hz/1E6;
-		m := f_vga_mhz/GCD(f_sys_mhz, f_vga_mhz);
-
-		if m = 1 then
-			m := 2;
-		end if;
-		
-		return m;
-		
-	end DCM_FREQ_M;	
-
-	function DCM_FREQ_D(f_sys_hz, f_vga_hz : natural) return natural is
-	variable f_sys_mhz : natural;
-	variable f_vga_mhz : natural;
-	variable m : natural;
-	variable d : natural;
-	begin
-		m := DCM_FREQ_M(f_sys_hz, f_vga_hz);
-		f_sys_mhz := f_sys_hz/1E6;
-		f_vga_mhz := f_vga_hz/1E6;
-		d := m*f_sys_mhz/f_vga_mhz;
-		
-		return d;
-
-	end DCM_FREQ_D;	
-
-	function DCM_PERIOD(f_sys_hz : natural) return real is
-	begin
-		
-		return 1.0E9/real(f_sys_hz);
-
-	end DCM_PERIOD;	
-	
 	function to_color_t(x : unsigned) return color_t is
 	variable result : color_t;
 	begin