X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/68ce013e5fe7c5d1c4e07fe8ba1eb0ba2855b280..f8c46ff554cb7f4c067eab1234faf729118c4c25:/Timer.v?ds=sidebyside

diff --git a/Timer.v b/Timer.v
index e46b38b..facf20f 100644
--- a/Timer.v
+++ b/Timer.v
@@ -11,15 +11,17 @@ module Timer(
 	inout [7:0] data,
 	output reg irq = 0);
 
+	reg rdlatch = 0;
+	reg [15:0] addrlatch = 0;
 	reg [7:0] tima = 0, tma = 0, tac = 0, div = 0;
 	reg ovf = 0;
 	reg [9:0] clkdv = 0;
 
-	wire is_tima = addr == `ADDR_TIMA;
-	wire is_tma  = addr == `ADDR_TMA;
-	wire is_tac  = addr == `ADDR_TAC;
+	wire is_tima = addrlatch == `ADDR_TIMA;
+	wire is_tma  = addrlatch == `ADDR_TMA;
+	wire is_tac  = addrlatch == `ADDR_TAC;
 
-	assign data = rd ?
+	assign data = rdlatch ?
 	                 is_tima ? tima :
 	                 is_tma ? tma :
 	                 is_tac ? tac :
@@ -35,6 +37,9 @@ module Timer(
 
 	always @ (posedge clk) 
 	begin
+		rdlatch <= rd;
+		addrlatch <= addr;
+		
 		if(wr) begin
 			case(addr)
 			`ADDR_DIV: div <= 8'b0;