Cleanup more registers on reset

cores/nes/mist/NES_mist.v

@@ -212,9 +212,9 @@ end
 wire strt = (start_cnt != 0);
 wire sel = (select_cnt != 0);
 
-wire [7:0] nes_joy_A = { joyB[0], joyB[1], joyB[2], joyB[3], 
+wire [7:0] nes_joy_A = reset_nes ? 8'd0 : { joyB[0], joyB[1], joyB[2], joyB[3], 
 								 joyB[7] | strt, joyB[6] | sel, joyB[5], joyB[4] } | kbd_joy0;
-wire [7:0] nes_joy_B = { joyA[0], joyA[1], joyA[2], joyA[3], 
+wire [7:0] nes_joy_B = reset_nes ? 8'd0 : { joyA[0], joyA[1], joyA[2], joyA[3], 
 							    joyA[7], joyA[6], joyA[5], joyA[4] } | kbd_joy1;
 
   wire clock_locked;
@@ -264,16 +264,22 @@ wire [7:0] nes_joy_B = { joyA[0], joyA[1], joyA[2], joyA[3],
 
   reg [1:0] nes_ce;
 
-  always @(posedge clk) begin
-    if (joypad_strobe) begin
-      joypad_bits <= nes_joy_A;
-      joypad_bits2 <= nes_joy_B;
-    end
-    if (!joypad_clock[0] && last_joypad_clock[0])
-      joypad_bits <= {1'b0, joypad_bits[7:1]};
-    if (!joypad_clock[1] && last_joypad_clock[1])
-      joypad_bits2 <= {1'b0, joypad_bits2[7:1]};
-    last_joypad_clock <= joypad_clock;
+	always @(posedge clk) begin
+		if (reset_nes) begin
+			joypad_bits <= 8'd0;
+			joypad_bits2 <= 8'd0;
+			last_joypad_clock <= 2'b00;
+		end else begin
+			if (joypad_strobe) begin
+				joypad_bits <= nes_joy_A;
+				joypad_bits2 <= nes_joy_B;
+			end
+			if (!joypad_clock[0] && last_joypad_clock[0])
+				joypad_bits <= {1'b0, joypad_bits[7:1]};
+			if (!joypad_clock[1] && last_joypad_clock[1])
+				joypad_bits2 <= {1'b0, joypad_bits2[7:1]};
+			last_joypad_clock <= joypad_clock;
+		end
   end
   
 
@@ -291,7 +297,6 @@ wire [7:0] nes_joy_B = { joyA[0], joyA[1], joyA[2], joyA[3],
                     mapper_flags, loader_done, loader_fail);
 
   wire reset_nes = (init_reset || buttons[1] || arm_reset || reset_osd || download_reset);
-  wire run_mem = (nes_ce == 0) && !reset_nes;
   wire run_nes = (nes_ce == 3) && !reset_nes;
 
   // NES is clocked at every 4th cycle.

cores/nes/mist/keyboard.v

@@ -38,8 +38,10 @@ assign joystick_1 = joy_num ? buttons : 7'b0;
 always @(posedge reset or posedge clk) begin
 	
 	if(reset) begin
-		pressed <= 1'b1;
+		pressed <= 1'b0;
 		e0 <= 1'b0;
+		joy_num <= 1'b0;
+		buttons <= 8'd0;
 	end else begin
 		if (keyb_valid) begin
 			if (keyb_data == 8'HE0)

cores/nes/src/nes.v

@@ -93,7 +93,7 @@ endmodule
 // Data read by PPU will be available on the next clock cycle.
 // Data read by CPU will be available within at most 2 clock cycles.
 
-module MemoryMultiplex(input clk, input ce,
+module MemoryMultiplex(input clk, input ce, input reset,
                        input [21:0] prg_addr, input prg_read, input prg_write, input [7:0] prg_din,
                        input [21:0] chr_addr, input chr_read, input chr_write, input [7:0] chr_din,
                        // Access signals for the SRAM.
@@ -108,7 +108,10 @@ module MemoryMultiplex(input clk, input ce,
   assign memory_read_ppu = chr_read;
   assign memory_read_cpu = !(chr_read || chr_write) && (prg_read || saved_prg_read);
   assign memory_dout = chr_write ? chr_din : prg_din;
-  always @(posedge clk) if (ce) begin
+  always @(posedge clk) if (reset) begin
+		saved_prg_read <= 0;
+		saved_prg_write <= 0;
+  end else if (ce) begin
     if (chr_read || chr_write) begin
       saved_prg_read <= prg_read || saved_prg_read;
       saved_prg_write <= prg_write || saved_prg_write;
@@ -280,12 +283,14 @@ module NES(input clk, input reset, input ce,
   end
    
   // -- Multiplexes CPU and PPU accesses into one single RAM
-  MemoryMultiplex mem(clk, ce, prg_linaddr, prg_read && prg_allow, prg_write && prg_allow, prg_din, 
+  MemoryMultiplex mem(clk, ce, reset, prg_linaddr, prg_read && prg_allow, prg_write && prg_allow, prg_din, 
                                chr_linaddr, chr_read,              chr_write && (chr_allow || vram_ce), chr_from_ppu,
                                memory_addr, memory_read_cpu, memory_read_ppu, memory_write, memory_dout);
 
   always @* begin
-    if (apu_cs) begin
+    if (reset)
+		from_data_bus <= 0;
+    else if (apu_cs) begin
       if (joypad1_cs)
         from_data_bus = {7'b0100000, joypad_data[0]};
       else if (joypad2_cs)