// The new tile data is latched and ready when vxpos[2:0] is 3'b000!
wire [9:0] bgmapaddr = {vypos[7:3], vxpos[7:3]};
reg [7:0] tileno;
- wire [10:0] tileaddr = {tileno, vypos[2:1]};
+ wire [10:0] tileaddr = {tileno, vypos[2:0]};
reg [7:0] tilehigh, tilelow;
assign pixdata = {tilehigh[vxpos[2:0]], tilelow[vxpos[2:0]]};
/***** Bus interface *****/
assign data = rd ?
- (addr == `ADDR_LCDC) ? rLCDC :
- (addr == `ADDR_STAT) ? {rSTAT[7:3], (rLYC == posy) ? 1'b1 : 1'b0, mode} :
- (addr == `ADDR_SCY) ? rSCY :
- (addr == `ADDR_SCX) ? rSCX :
- (addr == `ADDR_LY) ? posy :
- (addr == `ADDR_LYC) ? rLYC :
- (addr == `ADDR_BGP) ? rBGP :
- (addr == `ADDR_OBP0) ? rOBP0 :
- (addr == `ADDR_OBP1) ? rOBP1 :
- (addr == `ADDR_WY) ? rWY :
- (addr == `ADDR_WX) ? rWX :
- (decode_tiledata && addr[0]) ? tilehigh :
- (decode_tiledata && ~addr[0]) ? tilelow :
- (decode_bgmap1) ? tileno :
- 8'bzzzzzzzz :
+ ((addr == `ADDR_LCDC) ? rLCDC :
+ (addr == `ADDR_STAT) ? {rSTAT[7:3], (rLYC == posy) ? 1'b1 : 1'b0, mode} :
+ (addr == `ADDR_SCY) ? rSCY :
+ (addr == `ADDR_SCX) ? rSCX :
+ (addr == `ADDR_LY) ? posy :
+ (addr == `ADDR_LYC) ? rLYC :
+ (addr == `ADDR_BGP) ? rBGP :
+ (addr == `ADDR_OBP0) ? rOBP0 :
+ (addr == `ADDR_OBP1) ? rOBP1 :
+ (addr == `ADDR_WY) ? rWY :
+ (addr == `ADDR_WX) ? rWX :
+ (decode_tiledata && addr[0]) ? tilehigh :
+ (decode_tiledata && ~addr[0]) ? tilelow :
+ (decode_bgmap1) ? tileno :
+ 8'bzzzzzzzz) :
8'bzzzzzzzz;
always @(negedge clk)