X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/75ab1e9975f64989ee18450eb09b66b33ec5def8..aebd667080a34f41a93e3cf79a6c91cb2e6aaa37:/Soundcore.v

diff --git a/Soundcore.v b/Soundcore.v
index 7752317..70c4db1 100644
--- a/Soundcore.v
+++ b/Soundcore.v
@@ -29,14 +29,19 @@ module Soundcore(
 		(nr51[7] ? sndout4 : 4'b0);
 	assign sndout3 = 0;
 	assign sndout4 = 0;
-
-	assign data = rd ?
-	                 addr == `ADDR_NR50 ? nr50 :
-	                 addr == `ADDR_NR51 ? nr51 :
-	                 addr == `ADDR_NR52 ? nr52 : 8'bzzzzzzzz
+	
+	reg rdlatch;
+	reg [15:0] addrlatch;
+	
+	assign data = rdlatch ?
+	                 addrlatch == `ADDR_NR50 ? nr50 :
+	                 addrlatch == `ADDR_NR51 ? nr51 :
+	                 addrlatch == `ADDR_NR52 ? nr52 : 8'bzzzzzzzz
 		      : 8'bzzzzzzzz;
 
-	always @ (negedge core_clk) begin
+	always @ (posedge core_clk) begin
+		rdlatch <= rd;
+		addrlatch <= addr;
 		if(wr) begin
 			case(addr)
 			`ADDR_NR50: nr50 <= data;