1 files changed, 234 insertions, 0 deletions
diff --git a/de1/fpga-bbc-pq/master/missing-process-sensitivity.patch b/de1/fpga-bbc-pq/master/missing-process-sensitivity.patch
new file mode 100644
index 0000000..994998a
--- /dev/null
+++ b/de1/fpga-bbc-pq/master/missing-process-sensitivity.patch
@@ -0,0 +1,234 @@
+diff --git a/bbc_micro_de1.vhd b/bbc_micro_de1.vhd
+index 194f93a..25b3b43 100644
+--- a/bbc_micro_de1.vhd
++++ b/bbc_micro_de1.vhd
+@@ -1012,7 +1012,7 @@ begin
+ 		end if;
+ 	end process;
+ 	
+-	cycle_stretch: process(clock,reset_n)
++	cycle_stretch: process(clock,reset_n,mhz2_clken)
+ 	begin
+ 		if reset_n = '0' then
+ 			cpu_cycle_mask <= '0';
+@@ -1170,7 +1170,7 @@ begin
+ 	video_data <= SRAM_DQ(7 downto 0);
+ 
+ 	-- Synchronous outputs to SRAM
+-	process(clock,reset_n)
++	process(clock,reset_n,ram_enable,cpu_r_nw)
+ 	variable ram_write : std_logic;
+ 	begin		
+ 		ram_write := ram_enable and not cpu_r_nw;
+@@ -1290,9 +1290,10 @@ begin
+ 	SD_nCS <= '0'; -- CS
+ 	user_via_cb2_in <= SD_MISO; -- SDI
+ 	user_via_pb_in <= user_via_pb_out;
++
+ 	
+ 	-- ROM select latch
+-	process(clock,reset_n)
++	process(clock,reset_n,romsel_enable)
+ 	begin
+ 		if reset_n = '0' then
+ 			romsel <= (others => '0');
+@@ -1313,7 +1314,7 @@ begin
+ 	shift_lock_led_n <= ic32(7);
+ 
+ 	
+-	process(clock,reset_n)
++	process(clock,reset_n,sys_via_pb_out)
+ 	variable bit_num : integer;
+ 	begin
+ 		bit_num := to_integer(unsigned(sys_via_pb_out(2 downto 0)));
+diff --git a/debugger.vhd b/debugger.vhd
+index a7a9d7d..5431b47 100644
+--- a/debugger.vhd
++++ b/debugger.vhd
+@@ -213,7 +213,7 @@ begin
+ 	end process;
+ 	
+ 	-- Set watchpoint address
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,mode)
+ 	begin
+ 		if nRESET = '0' then
+ 			watchpoint <= (others => '1');
+@@ -232,7 +232,7 @@ begin
+ 	end process;
+ 	
+ 	-- Set breakpoint address
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,mode)
+ 	begin
+ 		if nRESET = '0' then
+ 			breakpoint <= (others => '1');
+diff --git a/i2c_loader.vhd b/i2c_loader.vhd
+index e0a7115..5152c7b 100644
+--- a/i2c_loader.vhd
++++ b/i2c_loader.vhd
+@@ -132,7 +132,7 @@ begin
+ 	end process;
+ 
+ 	-- The I2C loader process
+-	process(nRESET,CLK)
++	process(nRESET,CLK,clken)
+ 	begin
+ 		if nRESET = '0' then
+ 			scl_out <= '1';
+diff --git a/mc6845.vhd b/mc6845.vhd
+index c102501..c28152d 100644
+--- a/mc6845.vhd
++++ b/mc6845.vhd
+@@ -231,7 +231,7 @@ begin
+ 	end process; -- registers
+ 	
+ 	-- Horizontal, vertical and address counters
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	variable ma_row_start : unsigned(13 downto 0);
+ 	variable max_scan_line : unsigned(4 downto 0);
+ 	begin
+@@ -318,7 +318,7 @@ begin
+ 	
+ 	-- Signals to mark hsync and half way points for generating
+ 	-- vsync in even and odd fields
+-	process(h_counter)
++	process(h_counter,r02_h_sync_pos)
+ 	begin
+ 		h_sync_start <= '0';
+ 		h_half_way <= '0';
+@@ -332,7 +332,7 @@ begin
+ 	end process;
+ 	
+ 	-- Video timing and sync counters
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			-- H
+@@ -399,7 +399,7 @@ begin
+ 	end process;
+ 	
+ 	-- Address generation
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	variable slv_line : std_logic_vector(4 downto 0);
+ 	begin
+ 		if nRESET = '0' then
+@@ -423,7 +423,7 @@ begin
+ 	end process;
+ 	
+ 	-- Cursor control
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	variable cursor_line : std_logic;
+ 	begin	
+ 		-- Internal cursor enable signal delayed by 1 clock to line up
+@@ -459,7 +459,7 @@ begin
+ 	end process;
+ 	
+ 	-- Light pen capture
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			lpstb_i <= '0';
+diff --git a/saa5050.vhd b/saa5050.vhd
+index 573aaa3..d082339 100644
+--- a/saa5050.vhd
++++ b/saa5050.vhd
+@@ -155,7 +155,7 @@ begin
+ 	flash <= flash_counter(5) and flash_counter(4);
+ 		
+ 	-- Sync inputs
+-	process(DI_CLOCK,nRESET)
++	process(DI_CLOCK,nRESET,DI_CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			di_r <= (others => '0');
+@@ -169,7 +169,7 @@ begin
+ 	end process;
+ 	
+ 	-- Register data into pixel clock domain
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			code <= (others => '0');
+@@ -188,7 +188,7 @@ begin
+ 			gfx & code & std_logic_vector(line_addr);
+ 	
+ 	-- Character row and pixel counters
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin	
+ 		if nRESET = '0' then
+ 			dew_latch <= '0';
+@@ -260,7 +260,7 @@ begin
+ 	end process;
+ 	
+ 	-- Shift register
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			shift_reg <= (others => '0');
+@@ -292,7 +292,7 @@ begin
+ 	end process;
+ 	
+ 	-- Control character handling
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin	
+ 		if nRESET = '0' then
+ 			fg <= (others => '1');
+@@ -363,7 +363,7 @@ begin
+ 	end process;
+ 	
+ 	-- Output
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN,shift_reg,flash,conceal,is_flash)
+ 	variable pixel : std_logic;
+ 	begin	
+ 		pixel := shift_reg(5) and not ((flash and is_flash) or conceal);
+diff --git a/vidproc.vhd b/vidproc.vhd
+index 25f3d75..e53bb46 100644
+--- a/vidproc.vhd
++++ b/vidproc.vhd
+@@ -165,7 +165,7 @@ begin
+ 	clken_fetch <= CLKEN and not (clken_counter(0) or clken_counter(1) or clken_counter(2) or
+ 		(clken_counter(3) and not r0_crtc_2mhz));
+ 		
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	begin
+ 		if nRESET = '0' then
+ 			clken_counter <= (others => '0');
+@@ -176,7 +176,7 @@ begin
+ 	end process;
+ 	
+ 	-- Fetch control
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,clken_pixel)
+ 	begin
+ 		if nRESET = '0' then
+ 			shiftreg <= (others => '0');
+@@ -197,7 +197,7 @@ begin
+ 		((r0_cursor0 and not (cursor_counter(0) or cursor_counter(1))) or
+ 		(r0_cursor1 and cursor_counter(0) and not cursor_counter(1)) or
+ 		(r0_cursor2 and cursor_counter(1)));
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,clken_fetch)
+ 	begin
+ 		if nRESET = '0' then
+ 			cursor_active <= '0';
+@@ -231,7 +231,7 @@ begin
+ 	-- the pixel rate we ensure that the resulting delay is minimal and
+ 	-- constant (running this at the pixel rate would cause
+ 	-- the display to move slightly depending on which mode was selected). 
+-	process(CLOCK,nRESET)
++	process(CLOCK,nRESET,CLKEN)
+ 	variable palette_a : std_logic_vector(3 downto 0);
+ 	variable dot_val : std_logic_vector(3 downto 0);
+ 	variable red_val : std_logic;