X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/49c326da841985a8aa48e8544173e5c045c6e0eb..298e8085b4f8f70121204fa4aed3a188034f6879:/System.v

diff --git a/System.v b/System.v
index 8c4cf1a..8f9ef08 100644
--- a/System.v
+++ b/System.v
@@ -92,6 +92,8 @@ module CellularRAM(
 	
 	reg [7:0] progaddrh, progaddrm, progaddrl;
 	
+	reg [22:0] progaddr;
+	
 	assign cr_nADV = 0;	/* Addresses are always valid! :D */
 	assign cr_nCE = 0;	/* The chip is enabled */
 	assign cr_nLB = 0;	/* Lower byte is enabled */
@@ -107,7 +109,7 @@ module CellularRAM(
 	assign cr_DQ = (~cr_nOE) ? 16'bzzzzzzzzzzzzzzzz : {8'b0, datalatch};
 	assign cr_A = (addrlatch[15:14] == 2'b00) ? /* extrom */ {9'b0,addrlatch[13:0]} :
 			(addrlatch[15:13] == 3'b101) ? {1'b1, 9'b0, addrlatch[12:0]} :
-			(addrlatch == ADDR_PROGDATA) ? {progaddrh[6:0], progaddrm[7:0], progaddrl[7:0]} :
+			(addrlatch == ADDR_PROGDATA) ? progaddr :
 			23'b0;
 	
 	reg [7:0] regbuf;
@@ -117,6 +119,10 @@ module CellularRAM(
 		ADDR_PROGADDRH: if (wr) progaddrh <= data;
 		ADDR_PROGADDRM: if (wr) progaddrm <= data;
 		ADDR_PROGADDRL: if (wr) progaddrl <= data;
+		ADDR_PROGDATA:	if (rd || wr) begin
+					progaddr <= {progaddrh[6:0], progaddrm[7:0], progaddr[7:0]};
+					{progaddrh[6:0], progaddrm[7:0], progaddr[7:0]} <= {progaddrh[6:0], progaddrm[7:0], progaddr[7:0]} + 23'b1;
+				end
 		endcase
 		rdlatch <= rd;
 		wrlatch <= wr;
@@ -196,6 +202,7 @@ module CoreTop(
 	input [3:0] buttons,
 	output wire [7:0] leds,
 	output serio,
+	input serin,
 	output wire [3:0] digits,
 	output wire [7:0] seven,
 	output wire cr_nADV, cr_nCE, cr_nOE, cr_nWE, cr_CRE, cr_nLB, cr_nUB, cr_CLK,
@@ -215,6 +222,7 @@ module CoreTop(
 	
 	wire [7:0] leds;
 	wire serio;
+	wire serin = 1;
 	wire [3:0] digits;
 	wire [7:0] seven;
 	wire [7:0] switches = 8'b0;
@@ -342,7 +350,8 @@ module CoreTop(
 		.data(data[0]),
 		.wr(wr[0]),
 		.rd(rd[0]),
-		.serial(serio)
+		.serial(serio),
+		.serialrx(serin)
 		);
 
 	InternalRAM ram(